添加缓存

mybatis-plus-join-annotation/src/main/java/com/github/yulichang/annotation/Table.java

@@ -77,4 +77,8 @@ public @interface Table {
      */
     String tablesClassName() default "%S";
 
+    /**
+     * 是否缓存
+     */
+    boolean cache() default true;
 }

mybatis-plus-join-test/test-join/src/test/java/com/github/yulichang/test/join/apt/AptWrapperTest.java

@@ -341,10 +341,10 @@ class AptWrapperTest {
                 "  AND uc.del = false\n" +
                 "  AND (ua.id <= ? AND ub.id >= ?)");
 
-        UserDtoCol tt = new UserDtoCol("tt");
+        UserDtoCol tt = UserDtoCol.build("tt");
-        UserDOCol ua = new UserDOCol("ua");
+        UserDOCol ua = UserDOCol.build("ua");
-        UserDOCol ub = new UserDOCol("ub");
+        UserDOCol ub = UserDOCol.build("ub");
-        UserDOCol uc = new UserDOCol("uc");
+        UserDOCol uc = UserDOCol.build("uc");
 
         AptQueryWrapper<UserDto> wrapper = new AptQueryWrapper<>(tt)
                 .selectAll()
@@ -387,10 +387,10 @@ class AptWrapperTest {
                 "  AND uc.del = false\n" +
                 "  AND (ua.head_img = tt.`name` AND tt.id = ua.id)");
 
-        UserDOCol ut = new UserDOCol("tt");
+        UserDOCol ut = UserDOCol.build("tt");
-        UserDOCol ua1 = new UserDOCol("ua");
+        UserDOCol ua1 = UserDOCol.build("ua");
-        UserDOCol ub1 = new UserDOCol("ub");
+        UserDOCol ub1 = UserDOCol.build("ub");
-        UserDOCol uc1 = new UserDOCol("uc");
+        UserDOCol uc1 = UserDOCol.build("uc");
 
         AptQueryWrapper<UserDO> w = new AptQueryWrapper<>(ut)
                 .selectAll()
@@ -440,8 +440,8 @@ class AptWrapperTest {
                 "WHERE t.del = false\n" +
                 "  AND (t.id > ?)");
 
-        UserDOCol u =  USERDO;
+        UserDOCol u = USERDO;
-        UserDOCol ua = new UserDOCol();
+        UserDOCol ua = UserDOCol.build();
 
         //自连接
         AptQueryWrapper<UserDO> wrapper = new AptQueryWrapper<>(u)
@@ -472,9 +472,9 @@ class AptWrapperTest {
                 "         LEFT JOIN `user` t2 ON (t2.id = t.update_by)\n" +
                 "WHERE (t2.id = t.update_by AND t.id = t1.id)");
 
-        UserDOCol uu = new UserDOCol();
+        UserDOCol uu = UserDOCol.build();
-        UserDOCol uua = new UserDOCol();
+        UserDOCol uua = UserDOCol.build();
-        UserDOCol uub = new UserDOCol();
+        UserDOCol uub = UserDOCol.build();
 
         //关联一张表多次
         AptQueryWrapper<UserDO> w = new AptQueryWrapper<>(uu)
@@ -534,9 +534,9 @@ class AptWrapperTest {
                 "WHERE t.del = false\n" +
                 "  AND (t1.id <= ? AND t.id <= ?)");
 
-        UserDOCol uuu = new UserDOCol();
+        UserDOCol uuu = UserDOCol.build();
-        UserDOCol uuua = new UserDOCol();
+        UserDOCol uuua = UserDOCol.build();
-        UserDOCol uuub = new UserDOCol();
+        UserDOCol uuub = UserDOCol.build();
 
         AptQueryWrapper<UserDO> wrapper1 = new AptQueryWrapper<>(uuu)
                 .disableSubLogicDel()
@@ -557,20 +557,20 @@ class AptWrapperTest {
      */
     @Test
     void testLogicDel() {
-        UserDOCol u1 = new UserDOCol();
+        UserDOCol u1 = UserDOCol.build();
         List<UserDTO> l1 = userMapper.selectJoinList(UserDTO.class, new AptQueryWrapper<>(u1));
         assert l1.size() == 14;
 
-        UserDOCol u2 = new UserDOCol();
+        UserDOCol u2 = UserDOCol.build();
-        AddressDOCol addr2 = new AddressDOCol();
+        AddressDOCol addr2 = AddressDOCol.build();
         List<UserDTO> l2 = userMapper.selectJoinList(UserDTO.class, new AptQueryWrapper<>(u2)
                 .selectAll()
                 .select(addr2.address)
                 .leftJoin(addr2, addr2.userId, u2.id));
         assert l2.size() == 10;
 
-        UserDOCol u3 = new UserDOCol();
+        UserDOCol u3 = UserDOCol.build();
-        AddressDOCol addr3 = new AddressDOCol();
+        AddressDOCol addr3 = AddressDOCol.build();
         List<UserDTO> l3 = userMapper.selectJoinList(UserDTO.class, new AptQueryWrapper<>(u3)
                 .disableSubLogicDel()
                 .selectAll()
@@ -578,8 +578,8 @@ class AptWrapperTest {
                 .leftJoin(addr3, addr3.userId, u3.id));
         assert l3.size() == 14 && l3.get(0).getAddressList().size() == 9;
 
-        UserDOCol u4 = new UserDOCol();
+        UserDOCol u4 = UserDOCol.build();
-        AddressDOCol addr4 = new AddressDOCol();
+        AddressDOCol addr4 = AddressDOCol.build();
         List<UserDTO> l4 = userMapper.selectJoinList(UserDTO.class, new AptQueryWrapper<>(u4)
                 .disableSubLogicDel()
                 .selectAll()
@@ -595,8 +595,8 @@ class AptWrapperTest {
      */
     @Test
     void testAlias() {
-        UserDOCol u = new UserDOCol();
+        UserDOCol u = UserDOCol.build();
-        UserDOCol uu = new UserDOCol();
+        UserDOCol uu = UserDOCol.build();
         AptQueryWrapper<UserDO> wrapper = new AptQueryWrapper<>(u)
 //                .disableSubLogicDel()//关闭副表逻辑删除
 //                .disableLogicDel()//关闭主表逻辑删除
@@ -616,8 +616,8 @@ class AptWrapperTest {
     void testObj() {
         ThreadLocalUtils.set("SELECT DISTINCT t.id FROM `user` t LEFT JOIN address t1 ON (t1.user_id = t.id) WHERE t.del=false AND t1.del=false ORDER BY t.id DESC");
 
-        UserDOCol u = new UserDOCol();
+        UserDOCol u = UserDOCol.build();
-        AddressDOCol addr = new AddressDOCol();
+        AddressDOCol addr = AddressDOCol.build();
         AptQueryWrapper<UserDO> wrapper = new AptQueryWrapper<>(u)
                 .distinct()
                 .select(u.id)
@@ -651,8 +651,8 @@ class AptWrapperTest {
                 "WHERE t.del = false\n" +
                 "  AND aa.del = false");
 
-        UserDOCol u = new UserDOCol();
+        UserDOCol u = UserDOCol.build();
-        AddressDOCol addr = new AddressDOCol("aa");
+        AddressDOCol addr = AddressDOCol.build("aa");
         AptQueryWrapper<UserDO> wrapper = new AptQueryWrapper<>(u)
 //                .disableLogicDel()//关闭主表逻辑删除
                 .selectAll()
@@ -666,9 +666,9 @@ class AptWrapperTest {
 
     @Test
     void testLabel() {
-        UserDOCol u = new UserDOCol();
+        UserDOCol u = UserDOCol.build();
-        AddressDOCol addr1 = new AddressDOCol("t1");
+        AddressDOCol addr1 = AddressDOCol.build("t1");
-        AddressDOCol addr2 = new AddressDOCol("t2");
+        AddressDOCol addr2 = AddressDOCol.build("t2");
 
         AptQueryWrapper<UserDO> wrapper = new AptQueryWrapper<>(u)
                 .disableSubLogicDel()
@@ -690,9 +690,9 @@ class AptWrapperTest {
      */
     @Test
     void test1() {
-        UserDOCol u = new UserDOCol();
+        UserDOCol u = UserDOCol.build();
-        AddressDOCol addr = new AddressDOCol();
+        AddressDOCol addr = AddressDOCol.build();
-        AreaDOCol ar = new AreaDOCol();
+        AreaDOCol ar = AreaDOCol.build();
 
         Page<UserDTO> page = new Page<>(1, 10);
         page.setSearchCount(false);
@@ -735,8 +735,8 @@ class AptWrapperTest {
                         "LEFT JOIN address t1 ON (t.id = t1.user_id AND t.id = t1.user_id) WHERE t.del = false AND t1.del = false AND " +
                         "(t.id = ? AND (t.head_img = ? OR t1.user_id = ?) AND t.id = ?) ) TMP WHERE ROWNUM <=?) WHERE ROW_ID > ?");
 
-        UserDOCol u = new UserDOCol();
+        UserDOCol u = UserDOCol.build();
-        AddressDOCol addr = new AddressDOCol();
+        AddressDOCol addr = AddressDOCol.build();
 
         IPage<UserDTO> page = userMapper.selectJoinPage(new Page<>(1, 10), UserDTO.class, JoinWrappers.apt(u)
                 .selectAll()
@@ -758,8 +758,8 @@ class AptWrapperTest {
      */
     @Test
     void test4() {
-        UserDOCol u = new UserDOCol();
+        UserDOCol u = UserDOCol.build();
-        AddressDOCol addr = new AddressDOCol();
+        AddressDOCol addr = AddressDOCol.build();
 
         AptQueryWrapper<UserDO> wrapper = JoinWrappers.apt(u)
                 .selectSum(u.id)
@@ -777,7 +777,7 @@ class AptWrapperTest {
     @SneakyThrows
     void test8() throws BadSqlGrammarException {
         ThreadLocalUtils.set("SELECT t.`name` FROM `user` t WHERE t.del=false AND (t.`name` = ?)");
-        UserDOCol u = new UserDOCol();
+        UserDOCol u = UserDOCol.build();
         AptQueryWrapper<UserDO> wrapper = new AptQueryWrapper<>(u)
                 .select(u.name)
                 .eq(u.name, "ref");
@@ -790,8 +790,8 @@ class AptWrapperTest {
      */
     @Test
     void test7() {
-        UserDOCol u = new UserDOCol();
+        UserDOCol u = UserDOCol.build();
-        AddressDOCol addr = new AddressDOCol();
+        AddressDOCol addr = AddressDOCol.build();
         List<Map<String, Object>> list = userMapper.selectJoinMaps(JoinWrappers.apt(u)
                 .selectAll()
                 .select(addr.address)
@@ -814,7 +814,7 @@ class AptWrapperTest {
                 "SELECT t.id, t.pid, t.`name`, t.`json`, t.sex, t.head_img, t.create_time, t.address_id, t.address_id2, t.del, t.create_by, t.update_by FROM `user` t WHERE t.del = false AND (t.id > ? AND t.id < ?)",
                 "SELECT id, pid, `name`, `json`, sex, head_img, create_time, address_id, address_id2, del, create_by, update_by FROM `user` t WHERE t.del = false AND (t.id > ? AND t.id < ?)",
                 "SELECT * FROM `user` t WHERE t.del=false AND (t.id > ? AND t.id < ?) ");
-        UserDOCol u = new UserDOCol();
+        UserDOCol u = UserDOCol.build();
         List<UserDO> dos1 = userMapper.selectList(new AptQueryWrapper<>(u)
                 .gt(u.id, 3)
                 .lt(u.id, 8));
@@ -826,7 +826,7 @@ class AptWrapperTest {
      */
     @Test
     void testGeneric() {
-        AddressDOCol addr = new AddressDOCol();
+        AddressDOCol addr = AddressDOCol.build();
         AptQueryWrapper<AddressDO> wrapper = new AptQueryWrapper<>(addr)
                 .selectAll()
                 .le(addr.id, 10000)
@@ -845,18 +845,18 @@ class AptWrapperTest {
                 "SELECT COUNT( 1 ) FROM `user` t LEFT JOIN address t1 ON (t1.user_id = t.id) LEFT JOIN area t2 ON (t2.id = t1.area_id) WHERE t.del=false AND t1.del=false AND t2.del=false",
                 "SELECT COUNT( * ) FROM `user` t LEFT JOIN address t1 ON (t1.user_id = t.id) LEFT JOIN area t2 ON (t2.id = t1.area_id) WHERE t.del=false AND t1.del=false AND t2.del=false",
                 "SELECT COUNT( * ) AS total FROM `user` t LEFT JOIN address t1 ON (t1.user_id = t.id) LEFT JOIN area t2 ON (t2.id = t1.area_id) WHERE t.del=false AND t1.del=false AND t2.del=false");
-        UserDOCol u = new UserDOCol();
+        UserDOCol u = UserDOCol.build();
-        AddressDOCol addr = new AddressDOCol();
+        AddressDOCol addr = AddressDOCol.build();
-        AreaDOCol ar = new AreaDOCol();
+        AreaDOCol ar = AreaDOCol.build();
         AptQueryWrapper<UserDO> wrapper = new AptQueryWrapper<>(u)
                 .leftJoin(addr, addr.userId, u.id)
                 .leftJoin(ar, ar.id, addr.areaId);
         Object integer = userMapper.selectCount(wrapper);
 
         ThreadLocalUtils.set("SELECT COUNT( * ) FROM `user` t LEFT JOIN address t1 ON (t1.user_id = t.id) LEFT JOIN area t2 ON (t2.id = t1.area_id) WHERE t.del=false AND t1.del=false AND t2.del=false");
-        UserDOCol u1 = new UserDOCol();
+        UserDOCol u1 = UserDOCol.build();
-        AddressDOCol addr1 = new AddressDOCol();
+        AddressDOCol addr1 = AddressDOCol.build();
-        AreaDOCol ar1 = new AreaDOCol();
+        AreaDOCol ar1 = AreaDOCol.build();
         AptQueryWrapper<UserDO> wrapper1 = new AptQueryWrapper<>(u1)
                 .leftJoin(addr1, addr1.userId, u1.id)
                 .leftJoin(ar1, ar1.id, addr1.areaId);
@@ -872,9 +872,9 @@ class AptWrapperTest {
         ThreadLocalUtils.set("SELECT t.id FROM (SELECT * FROM `user`) t LEFT JOIN (SELECT * FROM address) t1 ON " +
                 "(t1.user_id = t.id) LEFT JOIN area t2 ON (t2.id = t1.area_id) WHERE t.del = false AND t1.del = false " +
                 "AND t2.del = false AND (t.id <= ?) ORDER BY t.id DESC");
-        UserDOCol u = new UserDOCol();
+        UserDOCol u = UserDOCol.build();
-        AddressDOCol addr = new AddressDOCol();
+        AddressDOCol addr = AddressDOCol.build();
-        AreaDOCol ar = new AreaDOCol();
+        AreaDOCol ar = AreaDOCol.build();
 
         AptQueryWrapper<UserDO> wrapper = new AptQueryWrapper<>(u)
                 .select(u.id)
@@ -925,9 +925,9 @@ class AptWrapperTest {
                 "WHERE t.del = false\n" +
                 "  AND (t.id <= ?)\n" +
                 "ORDER BY t.id DESC\n");
-        UserDOCol u = new UserDOCol();
+        UserDOCol u = UserDOCol.build();
-        AddressDOCol addr = new AddressDOCol();
+        AddressDOCol addr = AddressDOCol.build();
-        AreaDOCol ar = new AreaDOCol();
+        AreaDOCol ar = AreaDOCol.build();
         AptQueryWrapper<UserDO> wrapper = new AptQueryWrapper<>(u)
                 .logicDelToOn()
                 .selectAll()
@@ -978,9 +978,9 @@ class AptWrapperTest {
                 "WHERE t.del = false\n" +
                 "  AND (t.id <= ?)\n" +
                 "ORDER BY t.id DESC\n");
-        UserDOCol u = new UserDOCol();
+        UserDOCol u = UserDOCol.build();
-        AddressDOCol addr = new AddressDOCol();
+        AddressDOCol addr = AddressDOCol.build();
-        AreaDOCol ar = new AreaDOCol();
+        AreaDOCol ar = AreaDOCol.build();
 
         AptQueryWrapper<UserDO> wrapper = JoinWrappers.apt(u)
                 .logicDelToOn()
@@ -1001,9 +1001,9 @@ class AptWrapperTest {
 
     @Test
     void joinRandomMap() {
-        UserDOCol u = new UserDOCol();
+        UserDOCol u = UserDOCol.build();
-        AddressDOCol addr = new AddressDOCol();
+        AddressDOCol addr = AddressDOCol.build();
-        AreaDOCol ar = new AreaDOCol();
+        AreaDOCol ar = AreaDOCol.build();
         AptQueryWrapper<UserDO> wrapper = JoinWrappers.apt(u)
                 .logicDelToOn()
                 .selectAll()
@@ -1028,9 +1028,9 @@ class AptWrapperTest {
     @Test
     void joinRandomMap111() {
         ThreadLocalUtils.set("SELECT t.id,t.user_id,t.area_id,t.tel,t.address,t.del FROM address t LEFT JOIN `user` t1 ON (t1.address_id = t.id) LEFT JOIN `user` t2 ON (t2.pid = t1.id) WHERE t.del=false AND t1.del=false AND t2.del=false");
-        UserDOCol u = new UserDOCol();
+        UserDOCol u = UserDOCol.build();
-        UserDOCol u1 = new UserDOCol();
+        UserDOCol u1 = UserDOCol.build();
-        AddressDOCol addr = new AddressDOCol();
+        AddressDOCol addr = AddressDOCol.build();
         AptQueryWrapper<AddressDO> wrapper = JoinWrappers.apt(addr)
                 .selectAll()
                 .leftJoin(u, u.addressId, addr.id)
@@ -1045,8 +1045,8 @@ class AptWrapperTest {
     @Test
     void joinOwn() {
         ThreadLocalUtils.set("SELECT t.id,t.pid,t.`name`,t.`json`,t.sex,t.head_img,t.create_time,t.address_id,t.address_id2,t.del,t.create_by,t.update_by FROM `user` t LEFT JOIN address t1 ON (t1.user_id = t.id) WHERE t.del=false AND t1.del=false AND (t1.id = t1.id)");
-        UserDOCol u = new UserDOCol();
+        UserDOCol u = UserDOCol.build();
-        AddressDOCol addr = new AddressDOCol();
+        AddressDOCol addr = AddressDOCol.build();
         AptQueryWrapper<UserDO> wrapper = JoinWrappers.apt(u)
                 .selectAll()
                 .leftJoin(addr, addr.userId, u.id)
@@ -1062,8 +1062,8 @@ class AptWrapperTest {
     void joinOwn1() {
         ThreadLocalUtils.set("SELECT t.id,t.pid,t.`name`,t.`json`,t.sex,t.head_img,t.create_time,t.address_id,t.address_id2,t.del,t.create_by,t.update_by FROM `user` t " +
                 "LEFT JOIN address aaa ON (aaa.user_id = t.id) WHERE t.del=false AND aaa.del=false AND (aaa.id = t.id AND aaa.id = aaa.id)");
-        UserDOCol u = new UserDOCol();
+        UserDOCol u = UserDOCol.build();
-        AddressDOCol addr = new AddressDOCol("aaa");
+        AddressDOCol addr = AddressDOCol.build("aaa");
         AptQueryWrapper<UserDO> wrapper = JoinWrappers.apt(u)
                 .selectAll()
                 .leftJoin(addr, addr.userId, u.id)
@@ -1071,8 +1071,6 @@ class AptWrapperTest {
                 .eq(addr.id, addr.id);
         List<UserDO> addressDOS = wrapper.list();
     }
-//执行sql: SELECT t.id, t.pid, t.`name`, t.`json`, t.sex, t.head_img, t.create_time, t.address_id, t.address_id2, t.del, t.create_by, t.update_by FROM `user` t LEFT JOIN address aaa ON (aaa.user_id = aaa.id) WHERE t.del = false AND aaa.del = false AND (aaa.id = t.id AND aaa.id = aaa.id)
-//预期sql: SELECT t.id, t.pid, t.`name`, t.`json`, t.sex, t.head_img, t.create_time, t.address_id, t.address_id2, t.del, t.create_by, t.update_by FROM `user` t LEFT JOIN address aaa ON (aaa.user_id = t.id) WHERE t.del=false AND aaa.del=false AND (aaa.id = t.id AND aaa.id = aaa.id)
 
     /**
      * 同一个类字段比较
@@ -1087,7 +1085,7 @@ class AptWrapperTest {
             ThreadLocalUtils.set("SELECT id,user_id,name FROM order_t t",
                     "SELECT id,user_id,name FROM order_t t");
         }
-        OrderDOCol o = new OrderDOCol();
+        OrderDOCol o = OrderDOCol.build();
         AptQueryWrapper<OrderDO> wrapper = JoinWrappers.apt(o);
         List<OrderDO> list = wrapper.list();
 
@@ -1099,8 +1097,8 @@ class AptWrapperTest {
                     "SELECT t.id,t.user_id,t.name,t1.`name` AS userName FROM order_t t LEFT JOIN `user` t1 ON (t1.id = t.user_id) WHERE t1.del=false");
         }
 
-        UserDOCol u = new UserDOCol();
+        UserDOCol u = UserDOCol.build();
-        OrderDOCol o1 = new OrderDOCol();
+        OrderDOCol o1 = OrderDOCol.build();
         AptQueryWrapper<OrderDO> w = JoinWrappers.apt(o1)
                 .selectAll()
                 .selectAs(u.name, OrderDO::getUserName)
@@ -1113,8 +1111,8 @@ class AptWrapperTest {
      */
     @Test
     void checkOrderBy() {
-        UserDOCol u = new UserDOCol();
+        UserDOCol u = UserDOCol.build();
-        AddressDOCol addr = new AddressDOCol();
+        AddressDOCol addr = AddressDOCol.build();
         AptQueryWrapper<UserDO> wrapper = JoinWrappers.apt(u)
                 .selectAll()
                 .leftJoin(addr, addr.userId, u.id)

mybatis-plus-join-test/test-join/src/test/java/com/github/yulichang/test/join/apt/unit/ApplyFuncTest.java

@@ -1,13 +1,11 @@
 package com.github.yulichang.test.join.apt.unit;
 
-import com.github.yulichang.test.join.entity.AddressDO;
 import com.github.yulichang.test.join.entity.UserDO;
 import com.github.yulichang.test.join.entity.apt.AddressDOCol;
 import com.github.yulichang.test.join.entity.apt.UserDOCol;
 import com.github.yulichang.test.util.Reset;
 import com.github.yulichang.test.util.ThreadLocalUtils;
 import com.github.yulichang.toolkit.JoinWrappers;
-import com.github.yulichang.wrapper.segments.Fun;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.springframework.boot.test.context.SpringBootTest;
@@ -31,8 +29,8 @@ public class ApplyFuncTest {
                 "LEFT JOIN address t1 ON (t1.user_id = t.id) WHERE t.del = false AND t1.del = false " +
                 "AND (concat(t.id, t1.user_id, ?) IS NOT NULL " +
                 "AND concat(t.id, t1.user_id, ?) IS NOT NULL)");
-        UserDOCol u = new UserDOCol();
+        UserDOCol u = UserDOCol.build();
-        AddressDOCol addr = new AddressDOCol();
+        AddressDOCol addr = AddressDOCol.build();
 
         List<UserDO> list = JoinWrappers.apt(u)
                 .selectAll()
@@ -49,8 +47,8 @@ public class ApplyFuncTest {
                 "AND (concat(t.id, t1.user_id, ?) IS NOT NULL " +
                 "AND concat(t.id, t1.user_id, ?) IS NOT NULL)");
 
-        UserDOCol u1 = new UserDOCol();
+        UserDOCol u1 = UserDOCol.build();
-        AddressDOCol addr1 = new AddressDOCol();
+        AddressDOCol addr1 = AddressDOCol.build();
 
         List<UserDO> list1 = JoinWrappers.apt(u1)
                 .selectAll(u1, u1.id)

mybatis-plus-join-test/test-join/src/test/java/com/github/yulichang/test/join/apt/unit/AroundTest.java

@@ -5,7 +5,6 @@ import com.github.yulichang.test.join.entity.apt.UserDOCol;
 import com.github.yulichang.test.util.Reset;
 import com.github.yulichang.test.util.ThreadLocalUtils;
 import com.github.yulichang.toolkit.JoinWrappers;
-import com.github.yulichang.wrapper.MPJLambdaWrapper;
 import com.github.yulichang.wrapper.apt.AptQueryWrapper;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
@@ -24,7 +23,7 @@ public class AroundTest {
     void around() {
         ThreadLocalUtils.set("SELECT * FROM (SELECT t.id, t.pid, t.`name`, t.`json`, t.sex, t.head_img, " +
                 "t.create_time, t.address_id, t.address_id2, t.del, t.create_by, t.update_by FROM `user` t WHERE t.del = false) tmp");
-        UserDOCol u = new UserDOCol();
+        UserDOCol u = UserDOCol.build();
         AptQueryWrapper<UserDO> wrapper = JoinWrappers.apt(u)
                 .around("select * from (", ") tmp");
         wrapper.list().forEach(System.out::println);

mybatis-plus-join-test/test-join/src/test/java/com/github/yulichang/test/join/apt/unit/ChineseFieldTest.java

@@ -1,7 +1,6 @@
 package com.github.yulichang.test.join.apt.unit;
 
 import com.github.yulichang.test.join.entity.UserTenantaDO;
-import com.github.yulichang.test.join.entity.apt.UserTenantDOCol;
 import com.github.yulichang.test.join.entity.apt.UserTenantaDOCol;
 import com.github.yulichang.toolkit.JoinWrappers;
 import org.junit.jupiter.api.Test;
@@ -14,7 +13,7 @@ public class ChineseFieldTest {
 
     @Test
     void chineseField() {
-        UserTenantaDOCol ut = new UserTenantaDOCol();
+        UserTenantaDOCol ut = UserTenantaDOCol.build();
         List<UserTenantaDO> list = JoinWrappers.apt(ut).list();
         assert list.get(0).getDetail() != null;
         list.forEach(System.out::println);

mybatis-plus-join-test/test-join/src/test/java/com/github/yulichang/test/join/apt/unit/CustomWrapperTest.java

@@ -30,6 +30,7 @@ public class CustomWrapperTest {
 
 
     //自定义wrapper扩展
+    @SuppressWarnings("unused")
     public static class CWrapper<T> extends AptQueryWrapper<T> {
 
         public CWrapper(BaseColumn<T> baseColumn) {
@@ -54,7 +55,7 @@ public class CustomWrapperTest {
     @Test
     void testWrapperCustomer() {
         ThreadLocalUtils.set("SELECT t.id, t.pid, t.`name`, t.`json`, t.sex, t.head_img, t.create_time, t.address_id, t.address_id2, t.del, t.create_by, t.update_by FROM `user` t WHERE t.del = false AND (t.id = ?)");
-        UserDOCol u = new UserDOCol();
+        UserDOCol u = UserDOCol.build();
         CWrapper<UserDO> wrapper = new CWrapper<>(u)
                 .selectAll()
                 .toChildren(CWrapper::toCWrapper)
@@ -62,7 +63,7 @@ public class CustomWrapperTest {
         List<UserDO> dos = userMapper.selectList(wrapper);
         dos.forEach(System.out::println);
 
-        UserDOCol u1 = new UserDOCol();
+        UserDOCol u1 = UserDOCol.build();
         ThreadLocalUtils.set("SELECT t.id, t.pid, t.`name`, t.`json`, t.sex, t.head_img, t.create_time, t.address_id, t.address_id2, t.del, t.create_by, t.update_by FROM `user` t WHERE t.del = false");
         CWrapper<UserDO> wrapper1 = new CWrapper<>(u1)
                 .selectAll()

mybatis-plus-join-test/test-join/src/test/java/com/github/yulichang/test/join/apt/unit/EqSqlTest.java

@@ -1,6 +1,5 @@
 package com.github.yulichang.test.join.apt.unit;
 
-import com.github.yulichang.test.join.entity.UserDO;
 import com.github.yulichang.test.join.entity.apt.UserDOCol;
 import com.github.yulichang.test.util.Reset;
 import com.github.yulichang.test.util.ThreadLocalUtils;
@@ -22,12 +21,12 @@ public class EqSqlTest {
     void eqSql() {
         ThreadLocalUtils.set("SELECT t.id, t.pid, t.`name`, t.`json`, t.sex, t.head_img, t.create_time, t.address_id, " +
                 "t.address_id2, t.del, t.create_by, t.update_by FROM `user` t WHERE t.del = false AND (t.id = (SELECT id FROM `user` WHERE id = 1))");
-        UserDOCol u = new UserDOCol();
+        UserDOCol u = UserDOCol.build();
         JoinWrappers.apt(u).eqSql(u.id, "select id from `user` where id = 1").list();
 
         ThreadLocalUtils.set("SELECT t.id, t.pid, t.`name`, t.`json`, t.sex, t.head_img, t.create_time, t.address_id, " +
                 "t.address_id2, t.del, t.create_by, t.update_by FROM `user` t WHERE t.del = false AND (t.id = (SELECT id FROM `user` WHERE id = 1))");
-        UserDOCol u1 = new UserDOCol();
+        UserDOCol u1 = UserDOCol.build();
         JoinWrappers.apt(u1).eqSql("t.id", "select id from `user` where id = 1").list();
     }
 

mybatis-plus-join-test/test-join/src/test/java/com/github/yulichang/test/join/apt/unit/FieldAliasTest.java

@@ -34,8 +34,8 @@ public class FieldAliasTest {
 
     @Test
     void fieldAlias() {
-        UserDOCol u = new UserDOCol();
+        UserDOCol u = UserDOCol.build();
-        AddressDOCol addr = new AddressDOCol();
+        AddressDOCol addr = AddressDOCol.build();
         List<UserDO> list = userMapper.selectList(JoinWrappers.apt(u)
                 .selectAll()
                 .leftJoin(addr, addr.userId, u.id));
@@ -48,8 +48,8 @@ public class FieldAliasTest {
 
     @Test
     void fieldAlias1() {
-        UserTenantDOCol ut = new UserTenantDOCol();
+        UserTenantDOCol ut = UserTenantDOCol.build();
-        UserDOCol u = new UserDOCol();
+        UserDOCol u = UserDOCol.build();
         AptQueryWrapper<UserTenantDO> wrapper = JoinWrappers.apt(ut)
                 .selectAll()
                 .leftJoin(u, u.id, ut.uuid);

mybatis-plus-join-test/test-join/src/test/java/com/github/yulichang/test/join/apt/unit/FieldNameTest.java

@@ -28,8 +28,8 @@ public class FieldNameTest {
 
     @Test
     void testFieldName() {
-        AreaDOCol ar = new AreaDOCol();
+        AreaDOCol ar = AreaDOCol.build();
-        UserDtoCol ud = new UserDtoCol();
+        UserDtoCol ud = UserDtoCol.build();
         List<AreaDO> list = areaMapper.selectJoinList(AreaDO.class, JoinWrappers.apt(ar)
                 .select(ar.Postcode)
                 .leftJoin(ud, ud.id, ar.id));
@@ -39,8 +39,8 @@ public class FieldNameTest {
 
     @Test
     void testFieldName1() {
-        AreaDOCol ar = new AreaDOCol();
+        AreaDOCol ar = AreaDOCol.build();
-        UserDtoCol ud = new UserDtoCol();
+        UserDtoCol ud = UserDtoCol.build();
         List<AreaDTO> list = areaMapper.selectJoinList(AreaDTO.class, JoinWrappers.apt(ar)
                 .selectAs(ar.Postcode, AreaDTO::getPostcode)
                 .leftJoin(ud, ud.id, ar.id));

mybatis-plus-join-test/test-join/src/test/java/com/github/yulichang/test/join/apt/unit/IfExistsTest.java

@@ -6,7 +6,6 @@ import com.github.yulichang.test.join.entity.apt.UserDOCol;
 import com.github.yulichang.test.util.Reset;
 import com.github.yulichang.test.util.ThreadLocalUtils;
 import com.github.yulichang.toolkit.JoinWrappers;
-import com.github.yulichang.wrapper.MPJLambdaWrapper;
 import com.github.yulichang.wrapper.apt.AptQueryWrapper;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
@@ -45,7 +44,7 @@ public class IfExistsTest {
         ThreadLocalUtils.set("SELECT t.id, t.pid, t.`name`, t.`json`, t.sex, t.head_img, t.create_time, t.address_id, " +
                 "t.address_id2, t.del, t.create_by, t.update_by FROM `user` t " +
                 "WHERE t.del = false AND (t.id = ? AND t.head_img = ? AND t.`name` = ?)");
-        UserDOCol u = new UserDOCol();
+        UserDOCol u = UserDOCol.build();
         AptQueryWrapper<UserDO> wrapper = JoinWrappers.apt(u)
                 .selectAll()
                 .eqIfExists(u.id, 1)
@@ -59,7 +58,7 @@ public class IfExistsTest {
         ThreadLocalUtils.set("SELECT t.id, t.pid, t.`name`, t.`json`, t.sex, t.head_img, t.create_time, t.address_id, " +
                 "t.address_id2, t.del, t.create_by, t.update_by FROM `user` t " +
                 "WHERE t.del = false AND (t.id = ? AND t.`name` = ?)");
-        UserDOCol u1 = new UserDOCol();
+        UserDOCol u1 = UserDOCol.build();
         AptQueryWrapper<UserDO> wrapper1 = JoinWrappers.apt(u1)
                 .selectAll()
                 .setIfExists(IfExistsEnum.NOT_BLANK)
@@ -74,7 +73,7 @@ public class IfExistsTest {
         ThreadLocalUtils.set("SELECT t.id, t.pid, t.`name`, t.`json`, t.sex, t.head_img, t.create_time, t.address_id, " +
                 "t.address_id2, t.del, t.create_by, t.update_by FROM `user` t " +
                 "WHERE t.del = false AND (t.id = ? AND t.`name` = ? AND t.head_img = ? AND t.`name` = ?)");
-        UserDOCol u2 = new UserDOCol();
+        UserDOCol u2 = UserDOCol.build();
         AptQueryWrapper<UserDO> wrapper2 = JoinWrappers.apt(u2)
                 .selectAll()
                 .setIfExists(o -> true)

mybatis-plus-join-test/test-join/src/test/java/com/github/yulichang/test/join/apt/unit/NotLikeLeftRightTest.java

@@ -5,7 +5,6 @@ import com.github.yulichang.test.join.entity.apt.UserDOCol;
 import com.github.yulichang.test.util.Reset;
 import com.github.yulichang.test.util.ThreadLocalUtils;
 import com.github.yulichang.toolkit.JoinWrappers;
-import com.github.yulichang.wrapper.MPJLambdaWrapper;
 import com.github.yulichang.wrapper.apt.AptQueryWrapper;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
@@ -25,7 +24,7 @@ public class NotLikeLeftRightTest {
     void notLikeLeftRight() {
         ThreadLocalUtils.set("SELECT t.id, t.pid, t.`name`, t.`json`, t.sex, t.head_img, t.create_time, t.address_id, " +
                 "t.address_id2, t.del, t.create_by, t.update_by FROM `user` t WHERE t.del = false AND (t.`name` NOT LIKE ?)");
-        UserDOCol u = new UserDOCol();
+        UserDOCol u = UserDOCol.build();
         AptQueryWrapper<UserDO> wrapper = JoinWrappers.apt(u)
                 .selectAll()
                 .notLikeLeft(u.name, "aa");
@@ -34,7 +33,7 @@ public class NotLikeLeftRightTest {
 
         ThreadLocalUtils.set("SELECT t.id, t.pid, t.`name`, t.`json`, t.sex, t.head_img, t.create_time, t.address_id, " +
                 "t.address_id2, t.del, t.create_by, t.update_by FROM `user` t WHERE t.del = false AND (t.`name` NOT LIKE ?)");
-        UserDOCol u1 = new UserDOCol();
+        UserDOCol u1 = UserDOCol.build();
         AptQueryWrapper<UserDO> wrapper1 = JoinWrappers.apt(u1)
                 .selectAll()
                 .notLikeRight(u1.name, "aa");

mybatis-plus-join-test/test-join/src/test/java/com/github/yulichang/test/join/apt/unit/OrderByTest.java

@@ -31,7 +31,7 @@ public class OrderByTest {
     void orderBy() {
         ThreadLocalUtils.set("SELECT t.id, t.pid, t.`name`, t.`json`, t.sex, t.head_img, t.create_time, t.address_id, t.address_id2, t.del, t.create_by, t.update_by " +
                 "FROM `user` t WHERE t.del = false AND (t.id = ?) ORDER BY t.id ASC, t.`name` ASC, t.pid ASC");
-        UserDOCol u = new UserDOCol();
+        UserDOCol u = UserDOCol.build();
         List<Column> columList = Arrays.asList(u.id, u.name, u.pid);
 
         AptQueryWrapper<UserDO> wrapper = JoinWrappers.apt(u)
@@ -48,7 +48,7 @@ public class OrderByTest {
     void orderBy1() {
         ThreadLocalUtils.set("SELECT t.id, t.pid, t.`name`, t.`json`, t.sex, t.head_img, t.create_time, t.address_id, t.address_id2, t.del, t.create_by, t.update_by " +
                 "FROM `user` t WHERE t.del = false AND (t.id = ?) GROUP BY t.id, t.`name`, t.pid");
-        UserDOCol u = new UserDOCol();
+        UserDOCol u = UserDOCol.build();
         List<Column> columList = Arrays.asList(u.id, u.name, u.pid);
 
         AptQueryWrapper<UserDO> wrapper = JoinWrappers.apt(u)
@@ -64,8 +64,8 @@ public class OrderByTest {
 
     @Test
     void orderBy2() {
-        UserDOCol u = new UserDOCol();
+        UserDOCol u = UserDOCol.build();
-        AddressDOCol addr = new AddressDOCol();
+        AddressDOCol addr =  AddressDOCol.build();
 
         AptQueryWrapper<UserDO> wrapper = JoinWrappers.apt(u)
                 .selectAll()

mybatis-plus-join-test/test-join/src/test/java/com/github/yulichang/test/join/apt/unit/SelectSubTest.java

@@ -30,10 +30,10 @@ public class SelectSubTest {
     @Test
     void sub() {
         ThreadLocalUtils.set("SELECT (SELECT st.id FROM `user` st WHERE st.del = false AND (st.id = t.id AND st.id = ?) LIMIT 1) AS id, (SELECT st.id FROM `user` st WHERE st.del = false AND (st.id = t.id AND st.id = ?) LIMIT 1) AS name FROM `user` t LEFT JOIN address t1 ON (t1.user_id = t.id) WHERE t.del = false AND t1.del = false AND (t.id <= ?)");
-        UserDOCol u = new UserDOCol();
+        UserDOCol u = UserDOCol.build();
-        UserDOCol sb = new UserDOCol();
+        UserDOCol sb = UserDOCol.build();
-        UserDOCol sb2 = new UserDOCol();
+        UserDOCol sb2 = UserDOCol.build();
-        AddressDOCol addr = new AddressDOCol();
+        AddressDOCol addr = AddressDOCol.build();
 
         AptQueryWrapper<UserDO> wrapper = JoinWrappers.apt(u)
                 .selectSub(sb, w -> w.select(sb.id)
@@ -48,9 +48,9 @@ public class SelectSubTest {
                 .le(u.id, 100);
         wrapper.list();
 
-        UserDOCol u1 = new UserDOCol();
+        UserDOCol u1 = UserDOCol.build();
-        AddressDOCol addr1 = new AddressDOCol();
+        AddressDOCol addr1 = AddressDOCol.build();
-        AreaDOCol area = new AreaDOCol();
+        AreaDOCol area = AreaDOCol.build();
 
         ThreadLocalUtils.set("SELECT (SELECT st.id FROM area st WHERE st.del = false AND (st.id = t1.id) LIMIT 1) AS id FROM `user` t LEFT JOIN address t1 ON (t1.user_id = t.id) WHERE t.del = false AND t1.del = false AND (t.id <= ?)");
         AptQueryWrapper<UserDO> wrapper1 = JoinWrappers.apt(u1)
@@ -65,9 +65,9 @@ public class SelectSubTest {
     @Test
     void sub1() {
         ThreadLocalUtils.set("SELECT (SELECT st.id FROM `area` st WHERE st.del = false AND (st.id = t1.id) LIMIT 1) AS id FROM `user` t LEFT JOIN address t1 ON (t1.user_id = t.id) WHERE t.del = false AND t1.del = false AND (t.id <= ?)");
-        UserDOCol u = new UserDOCol();
+        UserDOCol u = UserDOCol.build();
-        AddressDOCol addr = new AddressDOCol();
+        AddressDOCol addr = AddressDOCol.build();
-        AreaDOCol ar = new AreaDOCol();
+        AreaDOCol ar = AreaDOCol.build();
 
         AptQueryWrapper<UserDO> wrapper1 = JoinWrappers.apt(u)
                 .selectSub(ar, w -> w.select(ar.id)

mybatis-plus-join-test/test-join/src/test/java/com/github/yulichang/test/join/apt/unit/StringColumTest.java

@@ -33,8 +33,8 @@ public class StringColumTest {
         ThreadLocalUtils.set("SELECT (SELECT id FROM `user` u WHERE u.id = t.id) id, t.`name` AS PName, t.`name` PName, t.`name`," +
                 " (SELECT id FROM `user` u WHERE u.id = t.id), t1.id AS joina_id, t1.user_id, t1.area_id, t1.tel, " +
                 "t1.address, t1.del FROM `user` t LEFT JOIN address t1 ON (t1.user_id = t.id) WHERE t.del = false AND t1.del = false");
-        UserDOCol u = new UserDOCol();
+        UserDOCol u = UserDOCol.build();
-        AddressDOCol addr = new AddressDOCol();
+        AddressDOCol addr = AddressDOCol.build();
         List<UserDTO> l3 = userMapper.selectJoinList(UserDTO.class, new AptQueryWrapper<>(u)
                 .select("(select id from `user` u where u.id = t.id) id")
                 .select("t.`name` as PName")

mybatis-plus-join-test/test-join/src/test/java/com/github/yulichang/test/join/apt/unit/TableAliasTest.java

@@ -38,10 +38,10 @@ public class TableAliasTest {
                 "LEFT JOIN area area1 ON (area1.id = addr1.area_id) " +
                 "WHERE t.del = false AND addr1.del = false AND addr2.del = false AND area1.del = false " +
                 "GROUP BY t.id");
-        UserDOCol u = new UserDOCol();
+        UserDOCol u = UserDOCol.build();
-        AddressDOCol addr1 = new AddressDOCol("addr1");
+        AddressDOCol addr1 = AddressDOCol.build("addr1");
-        AddressDOCol addr2 = new AddressDOCol("addr2");
+        AddressDOCol addr2 = AddressDOCol.build("addr2");
-        AreaDOCol area1 = new AreaDOCol("area1");
+        AreaDOCol area1 = AreaDOCol.build("area1");
 
         AptQueryWrapper<UserDO> wrapper = JoinWrappers.apt(u)
                 .selectAll()
@@ -63,10 +63,10 @@ public class TableAliasTest {
                 "WHERE t.del = false AND addr1.del = false AND addr2.del = false AND area1.del = false " +
                 "GROUP BY t.id,addr1.id ORDER BY addr1.id DESC");
 
-        UserDOCol u = new UserDOCol();
+        UserDOCol u = UserDOCol.build();
-        AddressDOCol addr1 = new AddressDOCol("addr1");
+        AddressDOCol addr1 = AddressDOCol.build("addr1");
-        AddressDOCol addr2 = new AddressDOCol("addr2");
+        AddressDOCol addr2 = AddressDOCol.build("addr2");
-        AreaDOCol area1 = new AreaDOCol("area1");
+        AreaDOCol area1 = AreaDOCol.build("area1");
 
         AptQueryWrapper<UserDO> wrapper = JoinWrappers.apt(u)
                 .selectAll()
@@ -90,10 +90,10 @@ public class TableAliasTest {
                 "LEFT JOIN area area1 ON (area1.id = addr2.area_id) WHERE t.del = false AND addr1.del = false AND addr2.del = false AND area1.del = false " +
                 "AND (addr1.id = ? AND addr2.id = ? AND addr1.id = ?)");
 
-        UserDOCol u = new UserDOCol();
+        UserDOCol u = UserDOCol.build();
-        AddressDOCol addr1 = new AddressDOCol("addr1");
+        AddressDOCol addr1 = AddressDOCol.build("addr1");
-        AddressDOCol addr2 = new AddressDOCol("addr2");
+        AddressDOCol addr2 = AddressDOCol.build("addr2");
-        AreaDOCol area1 = new AreaDOCol("area1");
+        AreaDOCol area1 = AreaDOCol.build("area1");
 
         AptQueryWrapper<UserDO> wrapper = JoinWrappers.apt(u)
                 .selectAll()
@@ -113,7 +113,7 @@ public class TableAliasTest {
         ThreadLocalUtils.set("SELECT aaa.id, aaa.pid, aaa.`name`, aaa.`json`, aaa.sex, aaa.head_img, aaa.create_time, " +
                 "aaa.address_id, aaa.address_id2, aaa.del, aaa.create_by, aaa.update_by FROM `user` aaa WHERE aaa.`name` = ? AND aaa.del = false");
 
-        UserDOCol u = new UserDOCol("aaa");
+        UserDOCol u = UserDOCol.build("aaa");
 
         UserDO userDO = new UserDO();
         userDO.setName("aaa");

mybatis-plus-join-test/test-join/src/test/java/com/github/yulichang/test/join/apt/unit/UnionTest.java

@@ -28,10 +28,10 @@ public class UnionTest {
     void unionAll1() {
         ThreadLocalUtils.set("SELECT t.id FROM `user` t WHERE t.del = false AND (t.id = ?) UNION ALL SELECT t.id FROM address t WHERE (t.id = ?) UNION ALL SELECT (SELECT st.id FROM area st WHERE st.del = false AND (st.id = ? AND (st.id = ?))) AS id FROM area t WHERE t.del = false AND (t.id = ? AND (t.id = ?))");
 
-        UserDOCol u = new UserDOCol();
+        UserDOCol u = UserDOCol.build();
-        AddressDOCol addr = new AddressDOCol();
+        AddressDOCol addr = AddressDOCol.build();
-        AreaDOCol area = new AreaDOCol();
+        AreaDOCol area = AreaDOCol.build();
-        AreaDOCol areaSb = new AreaDOCol();
+        AreaDOCol areaSb = AreaDOCol.build();
 
         AptQueryWrapper<UserDO> wrapper = JoinWrappers.apt(u)
                 .select(u.id)

plugin/mybatis-plus-join-processor/src/main/java/com/github/yulichang/processor/EntityProcessor.java

@@ -21,6 +21,7 @@ import javax.tools.Diagnostic;
 import javax.tools.JavaFileObject;
 import java.io.Writer;
 import java.util.*;
+import java.util.concurrent.ConcurrentHashMap;
 import java.util.function.Consumer;
 import java.util.stream.Collectors;
 
@@ -114,20 +115,25 @@ public class EntityProcessor extends AbstractProcessor {
 
         tableInfo.setFields(fieldInfos);
 
-        StringBuilderHelper content = new StringBuilderHelper()
+        StringBuilderHelper content = new StringBuilderHelper(tableInfo)
                 .addPackage(tableInfo.getTagClassPackage())
                 .newLine()
-                .addImport(BaseColumn.class.getName())
+                .addImport(true, BaseColumn.class.getName())
-                .addImport(Column.class.getName())
+                .addImport(true, Column.class.getName())
-                .addImport(tableInfo.getClassName())
+                .addImport(true, tableInfo.getClassName())
+                .newLine(tableInfo.isCache())
+                .addImport(tableInfo.isCache(), Map.class.getName())
+                .addImport(tableInfo.isCache(), Objects.class.getName())
+                .addImport(tableInfo.isCache(), ConcurrentHashMap.class.getName())
                 .newLine()
                 .addClass(tableInfo.getClassComment(), tableInfo.getTagClassName(),
                         BaseColumn.class.getSimpleName() + "<" + tableInfo.getSimpleClassName() + ">",
                         c -> c
-                                .addConstructor(tableInfo)
+                                .addConstructor()
-                                .addFields(tableInfo)
+                                .addFields()
-                                .addMethod(tableInfo)
+                                .addMethod()
-                                .addBuild(tableInfo)
+                                .addBuild()
+                                .addCacheClass()
                 );
         writerFile(tableInfo.getTagClassPackage() + "." + tableInfo.getTagClassName(), content.getContent());
         return tableInfo;
@@ -142,7 +148,7 @@ public class EntityProcessor extends AbstractProcessor {
         content.addPackage(tagPackage);
         content.newLine();
         // import
-        tableInfos.forEach(tableInfo -> content.addImport(tableInfo.getTagClassPackage() + "." + tableInfo.getTagClassName()));
+        tableInfos.forEach(tableInfo -> content.addImport(true, tableInfo.getTagClassPackage() + "." + tableInfo.getTagClassName()));
         content.newLine();
         // class
         String tables = "Tables";
@@ -172,14 +178,24 @@ public class EntityProcessor extends AbstractProcessor {
     @SuppressWarnings("UnusedReturnValue")
     public static class StringBuilderHelper {
         private final StringBuilder sb = new StringBuilder();
+        private TableInfo tableInfo;
+
+        public StringBuilderHelper() {
+        }
+
+        public StringBuilderHelper(TableInfo tableInfo) {
+            this.tableInfo = tableInfo;
+        }
 
         public StringBuilderHelper addPackage(String packageName) {
             sb.append("package ").append(packageName).append(";\n");
             return this;
         }
 
-        public StringBuilderHelper addImport(String importName) {
+        public StringBuilderHelper addImport(boolean cond, String importName) {
-            sb.append("import ").append(importName).append(";\n");
+            if (cond) {
+                sb.append("import ").append(importName).append(";\n");
+            }
             return this;
         }
 
@@ -196,7 +212,7 @@ public class EntityProcessor extends AbstractProcessor {
             return this;
         }
 
-        public StringBuilderHelper addConstructor(TableInfo tableInfo) {
+        public StringBuilderHelper addConstructor() {
             // 无参构造
             newLine();
             sb.append(String.format("\tpublic %s() {\n\t}\n", tableInfo.getTagClassName()));
@@ -218,7 +234,7 @@ public class EntityProcessor extends AbstractProcessor {
             return this;
         }
 
-        public StringBuilderHelper addFields(TableInfo tableInfo) {
+        public StringBuilderHelper addFields() {
             tableInfo.getFields().forEach(fieldInfo -> {
                 addComment("\t", fieldInfo.getComment());
                 sb.append(String.format("\tpublic final Column %s = new Column(this, \"%s\");\n",
@@ -231,7 +247,7 @@ public class EntityProcessor extends AbstractProcessor {
         public StringBuilderHelper addTablesFields(List<TableInfo> tableInfos) {
             tableInfos.forEach(tableInfo -> {
                 addComment("\t", tableInfo.getClassComment());
-                sb.append(String.format("\tpublic static final %s %s = new %s();\n",
+                sb.append(String.format("\tpublic static final %s %s = %s.build();\n",
                         tableInfo.getTagClassName(),
                         String.format(tableInfo.getTagTablesName(), tableInfo.getSimpleClassName()),
                         tableInfo.getTagClassName()));
@@ -240,7 +256,7 @@ public class EntityProcessor extends AbstractProcessor {
             return this;
         }
 
-        public StringBuilderHelper addMethod(TableInfo tableInfo) {
+        public StringBuilderHelper addMethod() {
             sb.append("\t@Override\n" +
                             "\tpublic Class<").append(tableInfo.getSimpleClassName()).append("> getColumnClass() {\n")
                     .append("\t\treturn ").append(tableInfo.getSimpleClassName()).append(".class;\n")
@@ -249,18 +265,33 @@ public class EntityProcessor extends AbstractProcessor {
             return this;
         }
 
-        public StringBuilderHelper addBuild(TableInfo tableInfo) {
+        public StringBuilderHelper addBuild() {
-            sb.append("\tpublic static ").append(tableInfo.getTagClassName()).append(" build() {\n")
+            sb.append("\tpublic static ").append(tableInfo.getTagClassName()).append(" build() {\n");
-                    .append("\t\treturn new ").append(tableInfo.getTagClassName()).append("();\n")
+            sb.append("\t\treturn new ").append(tableInfo.getTagClassName()).append("();\n");
-                    .append("\t}\n");
+            sb.append("\t}\n");
             newLine();
-            sb.append("\tpublic static ").append(tableInfo.getTagClassName()).append(" build(String alias) {\n")
+            sb.append("\tpublic static ").append(tableInfo.getTagClassName()).append(" build(String alias) {\n");
-                    .append("\t\treturn new ").append(tableInfo.getTagClassName()).append("(alias);\n")
+            if (tableInfo.isCache()) {
-                    .append("\t}\n");
+                sb.append("\t\tObjects.requireNonNull(alias);\n");
+                sb.append("\t\treturn Cache.CACHE.computeIfAbsent(alias, key -> new ").append(tableInfo.getTagClassName()).append("(key));\n");
+            } else {
+                sb.append("\t\treturn new ").append(tableInfo.getTagClassName()).append("(alias);\n");
+            }
+            sb.append("\t}\n");
             newLine();
             return this;
         }
 
+        public StringBuilderHelper addCacheClass() {
+            if (tableInfo.isCache()) {
+                sb.append("\tpublic static class Cache {\n")
+                        .append("\t\tprivate static final Map<String, ").append(tableInfo.getTagClassName()).append("> CACHE = new ConcurrentHashMap<>();\n")
+                        .append("\t}\n");
+                newLine();
+            }
+            return this;
+        }
+
         private StringBuilderHelper addComment(String prefix, String comment) {
             if (StringUtil.isNotEmpty(comment)) {
                 sb.append(prefix).append("/**\n");
@@ -276,6 +307,13 @@ public class EntityProcessor extends AbstractProcessor {
             return this;
         }
 
+        public StringBuilderHelper newLine(boolean cond) {
+            if (cond) {
+                sb.append("\n");
+            }
+            return this;
+        }
+
         public String getContent() {
             return sb.toString();
         }

plugin/mybatis-plus-join-processor/src/main/java/com/github/yulichang/processor/matedata/Conf.java

@@ -22,6 +22,7 @@ public class Conf {
     private boolean genTables = true;
     private String tablasClassPackage = "%s.tables";
     private String tablesClassName = "%S";
+    private boolean cache = true;
 
     private boolean initFlag = false;
 
@@ -32,6 +33,7 @@ public class Conf {
         this.tablasClassPackage = conf.tablasClassPackage;
         this.tablesClassName = conf.tablesClassName;
         this.initFlag = conf.initFlag;
+        this.cache = conf.cache;
     }
 
 
@@ -73,6 +75,7 @@ public class Conf {
         this.genTables = Boolean.parseBoolean(properties.getOrDefault("genTables", Boolean.toString(this.genTables)).toString());
         this.tablasClassPackage = properties.getOrDefault("tablasClassPackage", this.tablasClassPackage).toString();
         this.tablesClassName = properties.getOrDefault("tablesClassName", this.tablesClassName).toString();
+        this.cache = Boolean.parseBoolean(properties.getOrDefault("cache", this.cache).toString());
     }
 
     public static Conf getConf(Conf globalConf, Table table, Collection<String> keys) {
@@ -124,12 +127,21 @@ public class Conf {
         this.tablesClassName = tablesClassName;
     }
 
+    public boolean isCache() {
+        return cache;
+    }
+
+    public void setCache(boolean cache) {
+        this.cache = cache;
+    }
+
     public enum ConfItem {
         className("value", Table::value, (c, v) -> c.setClassName(v.toString())),
         packageName("classPackage", Table::classPackage, (c, v) -> c.setClassPackage(v.toString())),
         genTables("genTables", Table::genTables, (c, v) -> c.setGenTables((boolean) v)),
         tablasPackageName("tablesClassPackage", Table::tablesClassPackage, (c, v) -> c.setTablasClassPackage(v.toString())),
-        tablesName("tablesClassName", Table::tablesClassName, (c, v) -> c.setTablesClassName(v.toString()));
+        tablesName("tablesClassName", Table::tablesClassName, (c, v) -> c.setTablesClassName(v.toString())),
+        cache("cache", Table::cache, (c, v) -> c.setCache((boolean) v));
 
         private final String action;
 

plugin/mybatis-plus-join-processor/src/main/java/com/github/yulichang/processor/matedata/TableInfo.java

@@ -126,6 +126,10 @@ public class TableInfo {
         return this.conf.isGenTables();
     }
 
+    public boolean isCache() {
+        return this.conf.isCache();
+    }
+
     public Set<FieldInfo> getFields() {
         return fields;
     }