fix order by

mybatis-plus-join-core/src/main/java/com/github/yulichang/interceptor/MPJInterceptor.java

@@ -240,6 +240,7 @@ public class MPJInterceptor implements Interceptor {
                 columnName = getColumn(columnSet, columnName, 0);
                 label = new SelectLabel(r.getSelectNormal(), null, mybatisLabel.getOfType(), field, columnName, StringUtils.isNotBlank(index), index);
             } else {
+                columnSet.add(columnName);
                 label = new SelectLabel(r.getSelectNormal(), null, mybatisLabel.getOfType(), field, StringUtils.isNotBlank(index), index);
             }
             columnList.add(label);

mybatis-plus-join-core/src/main/java/com/github/yulichang/wrapper/MPJLambdaWrapper.java

@@ -191,14 +191,18 @@ public class MPJLambdaWrapper<T> extends MPJAbstractLambdaWrapper<T, MPJLambdaWr
                     return i.getColumn();
                 }
                 String prefix;
-                if (i.isLabel()) {
+                if (i.isHasTableAlias()) {
-                    if (i.isHasTableAlias()) {
+                    prefix = i.getTableAlias();
-                        prefix = i.getTableAlias();
-                    } else {
-                        prefix = tableList.getPrefix(i.getIndex(), i.getClazz(), true);
-                    }
                 } else {
-                    prefix = tableList.getPrefix(i.getIndex(), i.getClazz(), false);
+                    if (i.isLabel()) {
+                        if (i.isHasTableAlias()) {
+                            prefix = i.getTableAlias();
+                        } else {
+                            prefix = tableList.getPrefix(i.getIndex(), i.getClazz(), true);
+                        }
+                    } else {
+                        prefix = tableList.getPrefix(i.getIndex(), i.getClazz(), false);
+                    }
                 }
                 String str = prefix + StringPool.DOT + i.getColumn();
                 if (i.isFunc()) {

mybatis-plus-join-core/src/main/java/com/github/yulichang/wrapper/interfaces/Query.java

@@ -148,6 +148,15 @@ public interface Query<Children> extends Serializable {
         return getChildren();
     }
 
+    /**
+     * 查询实体类全部字段
+     */
+    default Children selectAll(Class<?> clazz, String prefix) {
+        getSelectColum().addAll(ColumnCache.getListField(clazz).stream().map(i ->
+                new SelectNormal(i, getIndex(), true, prefix)).collect(Collectors.toList()));
+        return getChildren();
+    }
+
     /**
      * select sql 片段
      */

mybatis-plus-join-test/pom.xml

@@ -77,11 +77,6 @@
             <artifactId>lombok</artifactId>
             <version>1.18.24</version>
         </dependency>
-        <dependency>
-            <groupId>com.baomidou</groupId>
-            <artifactId>mybatis-plus-boot-starter</artifactId>
-            <version>3.4.0</version>
-        </dependency>
         <dependency>
             <groupId>com.github.yulichang</groupId>
             <artifactId>mybatis-plus-join-boot-starter</artifactId>
@@ -101,7 +96,7 @@
         <dependency>
             <groupId>com.baomidou</groupId>
             <artifactId>mybatis-plus-boot-starter</artifactId>
-            <version>3.4.2</version>
+            <version>3.5.3</version>
         </dependency>
         <dependency>
             <groupId>org.springframework</groupId>

mybatis-plus-join-test/test-collection/src/main/java/com/github/yulichang/test/collection/dto/TableADTO.java

@@ -14,4 +14,6 @@ public class TableADTO {
     private String name;
 
     private List<TableBDTO> bList;
+
+    private TableBDTO b;
 }

mybatis-plus-join-test/test-collection/src/main/java/com/github/yulichang/test/collection/dto/TableBDTO.java

@@ -15,5 +15,7 @@ public class TableBDTO {
 
     private String name;
 
-    private List<TableCDTO> ccList;
+    private List<TableCDTO> cList;
+
+    private TableCDTO c;
 }

mybatis-plus-join-test/test-collection/src/main/java/com/github/yulichang/test/collection/dto/TableCDTO.java

@@ -16,4 +16,6 @@ public class TableCDTO {
     private String name;
 
     private List<TableDDTO> dList;
+
+    private TableDDTO d;
 }

mybatis-plus-join-test/test-collection/src/main/java/com/github/yulichang/test/collection/dto/TableDDTO.java

@@ -16,4 +16,6 @@ public class TableDDTO {
     private String name;
 
     private List<TableEDTO> eList;
+
+    private TableEDTO e;
 }

mybatis-plus-join-test/test-collection/src/test/java/com/github/yulichang/test/collection/CollectionTest.java

@@ -35,11 +35,12 @@ class CollectionTest {
      */
     @Test
     void testJoinCollection() {
+        testAA();
         //4层嵌套  a对多b  b对多c  c对多d  d对多e
         MPJLambdaWrapper<TableA> wrapper1 = new MPJLambdaWrapper<TableA>()
                 .selectAll(TableA.class)
                 .selectCollection(TableB.class, TableADTO::getBList, b -> b
-                        .collection(TableC.class, TableBDTO::getCcList, c -> c
+                        .collection(TableC.class, TableBDTO::getCList, c -> c
                                 .collection(TableD.class, TableCDTO::getDList, d -> d
                                         .collection(TableE.class, TableDDTO::getEList, e -> e
                                                 .id(TableE::getId)))))
@@ -52,7 +53,7 @@ class CollectionTest {
         MPJLambdaWrapper<TableA> wrapper = new MPJLambdaWrapper<TableA>()
                 .selectAll(TableA.class)
                 .selectCollection(TableB.class, TableADTO::getBList, b -> b
-                        .collection(TableC.class, TableBDTO::getCcList, c -> c
+                        .collection(TableC.class, TableBDTO::getCList, c -> c
                                 .collection(TableD.class, TableCDTO::getDList, d -> d
                                         .collection(TableE.class, TableDDTO::getEList))))
                 .leftJoin(TableB.class, TableB::getAid, TableA::getId)
@@ -61,6 +62,24 @@ class CollectionTest {
                 .leftJoin(TableE.class, TableE::getDid, TableD::getId);
         List<TableADTO> dtos = tableAMapper.selectJoinList(TableADTO.class, wrapper);
 
-        assert dtos.get(0).getBList().get(0).getCcList().get(0).getDList().get(0).getEList().get(0).getName() != null;
+        assert dtos.get(0).getBList().get(0).getCList().get(0).getDList().get(0).getEList().get(0).getName() != null;
+    }
+
+    @Test
+    void testAA() {
+        MPJLambdaWrapper<TableA> wrapper1 = new MPJLambdaWrapper<TableA>()
+                .selectAll(TableA.class)
+                .selectAssociation(TableB.class, TableADTO::getB, b -> b
+                        .association(TableC.class, TableBDTO::getC, c -> c
+                                .association(TableD.class, TableCDTO::getD, d -> d
+                                        .association(TableE.class, TableDDTO::getE, e -> e
+                                                .id(TableE::getId)))))
+                .leftJoin(TableB.class, TableB::getAid, TableA::getId)
+                .leftJoin(TableC.class, TableC::getBid, TableB::getId)
+                .leftJoin(TableD.class, TableD::getCid, TableC::getId)
+                .leftJoin(TableE.class, TableE::getDid, TableD::getId)
+                .last("LIMIT 1");
+        List<TableADTO> dtos1 = tableAMapper.selectJoinList(TableADTO.class, wrapper1);
+        System.out.println(1);
     }
 }

mybatis-plus-join-test/test-join/src/main/java/com/github/yulichang/test/join/entity/UserDO.java

@@ -42,6 +42,8 @@ public class UserDO {
 
     private Integer addressId;
 
+    private Integer addressId2;
+
     @TableLogic
     private Boolean del;
 
@@ -61,4 +63,10 @@ public class UserDO {
 
     @TableField(exist = false)
     private List<UserDO> children;
+
+    @TableField(exist = false)
+    private List<AddressDO> addressList;
+
+    @TableField(exist = false)
+    private List<AddressDO> addressList2;
 }

mybatis-plus-join-test/test-join/src/main/java/com/github/yulichang/test/join/service/UserService.java

@@ -0,0 +1,5 @@
+package com.github.yulichang.test.join.service;
+
+public interface UserService {
+
+}

mybatis-plus-join-test/test-join/src/main/java/com/github/yulichang/test/join/service/impl/UserServiceImpl.java

@@ -0,0 +1,9 @@
+package com.github.yulichang.test.join.service.impl;
+
+import com.github.yulichang.test.join.service.UserService;
+import org.springframework.stereotype.Service;
+
+@Service
+public class UserServiceImpl implements UserService {
+
+}

mybatis-plus-join-test/test-join/src/main/resources/db/data.sql

@@ -29,29 +29,29 @@ INSERT INTO area (id, province, city, area, postcode, del) VALUES (10022, '北
 
 DELETE FROM `user`;
 
-INSERT INTO `user` (id, pid, `name`, `json`, `address_id`, sex, head_img, create_time, create_by, update_by, del) VALUES
+INSERT INTO `user` (id, pid, `name`, `json`, `address_id`, address_id2 , sex, head_img, create_time, create_by, update_by, del) VALUES
-( 1, 1, '张三 1', '{"id": 1,"name":"张三 1"}', 1, 1, 'https://url-01', '2022-01-01 12:00:00', 1, 2, false),
+( 1, 1, '张三 1', '{"id": 1,"name":"张三 1"}', 1, 2, 1, 'https://url-01', '2022-01-01 12:00:00', 1, 2, false),
-( 2, 1, '张三 2', '{"id": 2,"name":"张三 2"}', 1, 0, 'https://url-02', '2022-01-01 12:00:00', 2, 3, false),
+( 2, 1, '张三 2', '{"id": 2,"name":"张三 2"}', 1, 2, 0, 'https://url-02', '2022-01-01 12:00:00', 2, 3, false),
-( 3, 1, '张三 3', '{"id": 3,"name":"张三 3"}', 1, 0, 'https://url-03', '2022-01-01 12:00:00', 3, 2, false),
+( 3, 1, '张三 3', '{"id": 3,"name":"张三 3"}', 1, 2, 0, 'https://url-03', '2022-01-01 12:00:00', 3, 2, false),
-( 4, 1, '张三 4', '{"id": 4,"name":"张三 4"}', 1, 0, 'https://url-04', '2022-01-01 12:00:00', 9, 2, false),
+( 4, 1, '张三 4', '{"id": 4,"name":"张三 4"}', 1, 2, 0, 'https://url-04', '2022-01-01 12:00:00', 9, 2, false),
-( 5, 1, '张三 5', '{"id": 5,"name":"张三 5"}', 1, 0, 'https://url-05', '2022-01-01 12:00:00', 1, 2, false),
+( 5, 1, '张三 5', '{"id": 5,"name":"张三 5"}', 1, 2, 0, 'https://url-05', '2022-01-01 12:00:00', 1, 2, false),
-( 6, 1, '张三 6', '{"id": 6,"name":"张三 6"}', 1, 0, 'https://url-06', '2022-01-01 12:00:00', 1, 2, false),
+( 6, 1, '张三 6', '{"id": 6,"name":"张三 6"}', 1, 2, 0, 'https://url-06', '2022-01-01 12:00:00', 1, 2, false),
-( 7, 1, '张三 7', '{"id": 7,"name":"张三 7"}', 1, 0, 'https://url-07', '2022-01-01 12:00:00', 1, 2, false),
+( 7, 1, '张三 7', '{"id": 7,"name":"张三 7"}', 1, 2, 0, 'https://url-07', '2022-01-01 12:00:00', 1, 2, false),
-( 8, 1, '张三 8', '{"id": 8,"name":"张三 8"}', 1, 0, 'https://url-08', '2022-01-01 12:00:00', 1, 2, false),
+( 8, 1, '张三 8', '{"id": 8,"name":"张三 8"}', 1, 2, 0, 'https://url-08', '2022-01-01 12:00:00', 1, 2, false),
-( 9, 1, '张三 9', '{"id": 9,"name":"张三 9"}', 1, 0, 'https://url-09', '2022-01-01 12:00:00', 1, 2, false),
+( 9, 1, '张三 9', '{"id": 9,"name":"张三 9"}', 1, 2, 0, 'https://url-09', '2022-01-01 12:00:00', 1, 2, false),
-(10, 1, '张三10', '{"id":10,"name":"张三10"}', 1, 0, 'https://url-10', '2022-01-01 12:00:00', 1, 2, true ),
+(10, 1, '张三10', '{"id":10,"name":"张三10"}', 1, 2, 0, 'https://url-10', '2022-01-01 12:00:00', 1, 2, true ),
-(11, 1, '张三11', '{"id":11,"name":"张三11"}', 1, 0, 'https://url-11', '2022-01-01 12:00:00', 1, 2, true ),
+(11, 1, '张三11', '{"id":11,"name":"张三11"}', 1, 2, 0, 'https://url-11', '2022-01-01 12:00:00', 1, 2, true ),
-(12, 1, '张三12', '{"id":12,"name":"张三12"}', 1, 0, 'https://url-12', '2022-01-01 12:00:00', 1, 2, true ),
+(12, 1, '张三12', '{"id":12,"name":"张三12"}', 1, 2, 0, 'https://url-12', '2022-01-01 12:00:00', 1, 2, true ),
-(13, 1, '张三13', '{"id":13,"name":"张三13"}', 1, 0, 'https://url-13', '2022-01-01 12:00:00', 1, 2, true ),
+(13, 1, '张三13', '{"id":13,"name":"张三13"}', 1, 2, 0, 'https://url-13', '2022-01-01 12:00:00', 1, 2, true ),
-(14, 2, '张三14', '{"id":14,"name":"张三14"}', 1, 0, 'https://url-14', '2022-01-01 12:00:00', 1, 2, false),
+(14, 2, '张三14', '{"id":14,"name":"张三14"}', 1, 2, 0, 'https://url-14', '2022-01-01 12:00:00', 1, 2, false),
-(15, 2, '张三15', '{"id":15,"name":"张三15"}', 1, 0, 'https://url-15', '2022-01-01 12:00:00', 1, 2, false),
+(15, 2, '张三15', '{"id":15,"name":"张三15"}', 1, 2, 0, 'https://url-15', '2022-01-01 12:00:00', 1, 2, false),
-(16, 2, '张三16', '{"id":16,"name":"张三16"}', 1, 0, 'https://url-16', '2022-01-01 12:00:00', 1, 2, false),
+(16, 2, '张三16', '{"id":16,"name":"张三16"}', 1, 2, 0, 'https://url-16', '2022-01-01 12:00:00', 1, 2, false),
-(17, 2, '张三17', '{"id":17,"name":"张三17"}', 1, 0, 'https://url-17', '2022-01-01 12:00:00', 1, 2, false),
+(17, 2, '张三17', '{"id":17,"name":"张三17"}', 1, 2, 0, 'https://url-17', '2022-01-01 12:00:00', 1, 2, false),
-(18, 2, '张三18', '{"id":18,"name":"张三18"}', 1, 0, 'https://url-18', '2022-01-01 12:00:00', 1, 2, false),
+(18, 2, '张三18', '{"id":18,"name":"张三18"}', 1, 2, 0, 'https://url-18', '2022-01-01 12:00:00', 1, 2, false),
-(19, 2, '张三19', '{"id":19,"name":"张三19"}', 1, 0, 'https://url-19', '2022-01-01 12:00:00', 1, 2, true ),
+(19, 2, '张三19', '{"id":19,"name":"张三19"}', 1, 2, 0, 'https://url-19', '2022-01-01 12:00:00', 1, 2, true ),
-(20, 2, '张三20', '{"id":20,"name":"张三20"}', 1, 0, 'https://url-20', '2022-01-01 12:00:00', 1, 2, true ),
+(20, 2, '张三20', '{"id":20,"name":"张三20"}', 1, 2, 0, 'https://url-20', '2022-01-01 12:00:00', 1, 2, true ),
-(21, 2, '张三21', '{"id":21,"name":"张三21"}', 1, 0, 'https://url-21', '2022-01-01 12:00:00', 1, 2, true ),
+(21, 2, '张三21', '{"id":21,"name":"张三21"}', 1, 2, 0, 'https://url-21', '2022-01-01 12:00:00', 1, 2, true ),
-(22, 2, '张三22', '{"id":22,"name":"张三22"}', 1, 0, 'https://url-22', '2022-01-01 12:00:00', 1, 2, true );
+(22, 2, '张三22', '{"id":22,"name":"张三22"}', 1, 2, 0, 'https://url-22', '2022-01-01 12:00:00', 1, 2, true );
 
 
 DELETE FROM address;

mybatis-plus-join-test/test-join/src/main/resources/db/schema.sql

@@ -25,6 +25,7 @@ create table `user`
     `name`       varchar(255) not null,
     `json`       varchar(255) not null,
     `address_id` int          not null,
+    `address_id2` int          not null,
     sex          tinyint      not null,
     head_img     varchar(255) not null,
     create_time  datetime not null,
@@ -55,4 +56,4 @@ create table user_dto
     update_by int not null,
     version   int not null,
     del       bit null
-);
+);

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

@@ -53,6 +53,7 @@ class LambdaWrapperTest {
         list.forEach(System.out::println);
     }
 
+
     @Test
     void testJoin1() {
         MPJLambdaWrapper<UserDO> wrapper = new MPJLambdaWrapper<UserDO>()
@@ -96,6 +97,7 @@ class LambdaWrapperTest {
 
 
     @Test
+    @SuppressWarnings("unchecked")
     void testMSCache() {
 //        PageHelper.startPage(1, 10);
         MPJLambdaWrapper<UserDO> wrapper = new MPJLambdaWrapper<UserDO>()
@@ -240,6 +242,33 @@ class LambdaWrapperTest {
         System.out.println(list);
     }
 
+    @Test
+    void testTableAlias() {
+        MPJLambdaWrapper<UserDO> wrapper = new MPJLambdaWrapper<UserDO>()
+//                .disableLogicDel()//关闭主表逻辑删除
+                .selectAll(UserDO.class)
+                .selectAll(AddressDO.class, "aa")
+//                .selectCollection(UserDO.class, UserDO::getChildren)
+                .leftJoin(AddressDO.class, "aa", AddressDO::getUserId, UserDO::getId);
+        List<UserDO> list = userMapper.selectJoinList(UserDO.class, wrapper);
+
+        System.out.println(list);
+    }
+
+    @Test
+    void testLabel() {
+        MPJLambdaWrapper<UserDO> wrapper = new MPJLambdaWrapper<UserDO>()
+                .disableSubLogicDel()
+                .selectAll(UserDO.class)
+                .selectCollection("t1", AddressDO.class, UserDO::getAddressList)
+                .selectCollection("t2", AddressDO.class, UserDO::getAddressList2)
+                .leftJoin(AddressDO.class, AddressDO::getId, UserDO::getAddressId)
+                .leftJoin(AddressDO.class, AddressDO::getId, UserDO::getAddressId2);
+        List<UserDO> list = userMapper.selectJoinList(UserDO.class, wrapper);
+
+        System.out.println(list);
+    }
+
 
     /**
      * 简单的分页关联查询 lambda