diff --git a/src/main/java/com/github/yulichang/common/support/func/README.md b/src/main/java/com/github/yulichang/common/support/func/README.md
index c7f5414..48976ba 100644
--- a/src/main/java/com/github/yulichang/common/support/func/README.md
+++ b/src/main/java/com/github/yulichang/common/support/func/README.md
@@ -87,10 +87,10 @@ class MpJoinTest {
     @Test
     void testS() {
         UserDTO dto = userMapper.userLeftJoin(new QueryWrapper<UserDO>()
-                .eq(S.a(UserDO::getId), "1")
-                .gt(S.a(UserDO::getSex), "3")
-                .eq(S.b(UserAddressDO::getTel), "10086")
-                .like(S.b(UserAddressDO::getAddress), "北京"));
+                .eq(S.a(UserDO::getId), "1")//a.id
+                .gt(S.a(UserDO::getSex), "3")//a.sex
+                .eq(S.b(UserAddressDO::getTel), "10086")//b.tel
+                .like(S.b(UserAddressDO::getAddress), "北京"));//b.address
     }
 
     /**
@@ -99,10 +99,10 @@ class MpJoinTest {
     @Test
     void testF() {
         UserDTO dto = userMapper.userLeftJoin(new QueryWrapper<UserDO>()
-                .eq(F.s(UserDO::getId), "1")
-                .gt(F.s(UserDO::getSex), "3")
-                .eq(F.s(UserAddressDO::getTel), "10086")
-                .like(F.s(UserAddressDO::getAddress), "北京"));
+                .eq(F.s(UserDO::getId), "1")//user.id
+                .gt(F.s(UserDO::getSex), "3")//user.sex
+                .eq(F.s(UserAddressDO::getTel), "10086")//user_address.tel
+                .like(F.s(UserAddressDO::getAddress), "北京"));//user_address.address
     }
 }
 ```
diff --git a/src/main/java/com/github/yulichang/method/MPJAbstractMethod.java b/src/main/java/com/github/yulichang/method/MPJAbstractMethod.java
index 531503d..72a8171 100644
--- a/src/main/java/com/github/yulichang/method/MPJAbstractMethod.java
+++ b/src/main/java/com/github/yulichang/method/MPJAbstractMethod.java
@@ -33,4 +33,14 @@ public abstract class MPJAbstractMethod extends AbstractMethod {
         return SqlScriptUtils.convertChoose(String.format("%s != null and %s != null", WRAPPER, Q_WRAPPER_SQL_SELECT),
                 SqlScriptUtils.unSafeParam(Q_WRAPPER_SQL_SELECT), selectColumns);
     }
+
+    protected String sqlAlias() {
+        return SqlScriptUtils.convertIf("${ew.alias}", String.format("%s != null and %s != ''", "ew.alias", "ew.alias"), false);
+    }
+
+    protected String sqlFrom() {
+        return SqlScriptUtils.convertIf("${ew.from}", String.format("%s != null and %s != ''", "ew.from", "ew.from"), false);
+    }
+
+
 }
diff --git a/src/main/java/com/github/yulichang/method/SelectJoinList.java b/src/main/java/com/github/yulichang/method/SelectJoinList.java
index ae7eada..c51ced8 100644
--- a/src/main/java/com/github/yulichang/method/SelectJoinList.java
+++ b/src/main/java/com/github/yulichang/method/SelectJoinList.java
@@ -6,14 +6,16 @@ import org.apache.ibatis.mapping.SqlSource;
 
 /**
  * copy {@link com.baomidou.mybatisplus.core.injector.methods.SelectMaps}
+ *
+ * @author yulichang
  */
 public class SelectJoinList extends MPJAbstractMethod {
 
     @Override
     public MappedStatement injectMappedStatement(Class<?> mapperClass, Class<?> modelClass, TableInfo tableInfo) {
         SqlMethod sqlMethod = SqlMethod.SELECT_JOIN_LIST;
-        String sql = String.format(sqlMethod.getSql(), sqlSelectColumns(tableInfo, true),
-                tableInfo.getTableName(), sqlWhereEntityWrapper(true, tableInfo), sqlComment());
+        String sql = String.format(sqlMethod.getSql(), sqlFirst(), sqlSelectColumns(tableInfo, true),
+                tableInfo.getTableName(), sqlAlias(), sqlFrom(), sqlWhereEntityWrapper(true, tableInfo), sqlComment());
         SqlSource sqlSource = languageDriver.createSqlSource(configuration, sql, modelClass);
         return this.addSelectMappedStatementForOther(mapperClass, sqlMethod.getMethod(), sqlSource, Object.class);
     }
diff --git a/src/main/java/com/github/yulichang/method/SelectJoinMap.java b/src/main/java/com/github/yulichang/method/SelectJoinMap.java
index 10d1fd3..efffa5f 100644
--- a/src/main/java/com/github/yulichang/method/SelectJoinMap.java
+++ b/src/main/java/com/github/yulichang/method/SelectJoinMap.java
@@ -8,14 +8,16 @@ import java.util.Map;
 
 /**
  * copy {@link com.baomidou.mybatisplus.core.injector.methods.SelectMaps}
+ *
+ * @author yulichang
  */
 public class SelectJoinMap extends MPJAbstractMethod {
 
     @Override
     public MappedStatement injectMappedStatement(Class<?> mapperClass, Class<?> modelClass, TableInfo tableInfo) {
         SqlMethod sqlMethod = SqlMethod.SELECT_JOIN_MAP;
-        String sql = String.format(sqlMethod.getSql(), sqlSelectColumns(tableInfo, true),
-                tableInfo.getTableName(), sqlWhereEntityWrapper(true, tableInfo), sqlComment());
+        String sql = String.format(sqlMethod.getSql(), sqlFirst(), sqlSelectColumns(tableInfo, true),
+                tableInfo.getTableName(), sqlAlias(), sqlFrom(), sqlWhereEntityWrapper(true, tableInfo), sqlComment());
         SqlSource sqlSource = languageDriver.createSqlSource(configuration, sql, modelClass);
         return this.addSelectMappedStatementForOther(mapperClass, sqlMethod.getMethod(), sqlSource, Map.class);
     }
diff --git a/src/main/java/com/github/yulichang/method/SelectJoinMaps.java b/src/main/java/com/github/yulichang/method/SelectJoinMaps.java
index 3c8bac9..9aa3ca7 100644
--- a/src/main/java/com/github/yulichang/method/SelectJoinMaps.java
+++ b/src/main/java/com/github/yulichang/method/SelectJoinMaps.java
@@ -8,14 +8,16 @@ import java.util.Map;
 
 /**
  * copy {@link com.baomidou.mybatisplus.core.injector.methods.SelectMaps}
+ *
+ * @author yulichang
  */
 public class SelectJoinMaps extends MPJAbstractMethod {
 
     @Override
     public MappedStatement injectMappedStatement(Class<?> mapperClass, Class<?> modelClass, TableInfo tableInfo) {
         SqlMethod sqlMethod = SqlMethod.SELECT_JOIN_MAPS;
-        String sql = String.format(sqlMethod.getSql(), sqlSelectColumns(tableInfo, true),
-                tableInfo.getTableName(), sqlWhereEntityWrapper(true, tableInfo), sqlComment());
+        String sql = String.format(sqlMethod.getSql(), sqlFirst(), sqlSelectColumns(tableInfo, true),
+                tableInfo.getTableName(), sqlAlias(), sqlFrom(), sqlWhereEntityWrapper(true, tableInfo), sqlComment());
         SqlSource sqlSource = languageDriver.createSqlSource(configuration, sql, modelClass);
         return this.addSelectMappedStatementForOther(mapperClass, sqlMethod.getMethod(), sqlSource, Map.class);
     }
diff --git a/src/main/java/com/github/yulichang/method/SelectJoinMapsPage.java b/src/main/java/com/github/yulichang/method/SelectJoinMapsPage.java
index 8abcade..2ca6219 100644
--- a/src/main/java/com/github/yulichang/method/SelectJoinMapsPage.java
+++ b/src/main/java/com/github/yulichang/method/SelectJoinMapsPage.java
@@ -8,14 +8,16 @@ import java.util.Map;
 
 /**
  * copy {@link com.baomidou.mybatisplus.core.injector.methods.SelectMaps}
+ *
+ * @author yulichang
  */
 public class SelectJoinMapsPage extends MPJAbstractMethod {
 
     @Override
     public MappedStatement injectMappedStatement(Class<?> mapperClass, Class<?> modelClass, TableInfo tableInfo) {
         SqlMethod sqlMethod = SqlMethod.SELECT_JOIN_MAPS_PAGE;
-        String sql = String.format(sqlMethod.getSql(), sqlSelectColumns(tableInfo, true),
-                tableInfo.getTableName(), sqlWhereEntityWrapper(true, tableInfo), sqlComment());
+        String sql = String.format(sqlMethod.getSql(), sqlFirst(), sqlSelectColumns(tableInfo, true),
+                tableInfo.getTableName(), sqlAlias(), sqlFrom(), sqlWhereEntityWrapper(true, tableInfo), sqlComment());
         SqlSource sqlSource = languageDriver.createSqlSource(configuration, sql, modelClass);
         return this.addSelectMappedStatementForOther(mapperClass, sqlMethod.getMethod(), sqlSource, Map.class);
     }
diff --git a/src/main/java/com/github/yulichang/method/SelectJoinOne.java b/src/main/java/com/github/yulichang/method/SelectJoinOne.java
index 59e81dc..47d0a8d 100644
--- a/src/main/java/com/github/yulichang/method/SelectJoinOne.java
+++ b/src/main/java/com/github/yulichang/method/SelectJoinOne.java
@@ -6,14 +6,16 @@ import org.apache.ibatis.mapping.SqlSource;
 
 /**
  * copy {@link com.baomidou.mybatisplus.core.injector.methods.SelectMaps}
+ *
+ * @author yulichang
  */
 public class SelectJoinOne extends MPJAbstractMethod {
 
     @Override
     public MappedStatement injectMappedStatement(Class<?> mapperClass, Class<?> modelClass, TableInfo tableInfo) {
         SqlMethod sqlMethod = SqlMethod.SELECT_JOIN_ONE;
-        String sql = String.format(sqlMethod.getSql(), sqlSelectColumns(tableInfo, true),
-                tableInfo.getTableName(), sqlWhereEntityWrapper(true, tableInfo), sqlComment());
+        String sql = String.format(sqlMethod.getSql(), sqlFirst(), sqlSelectColumns(tableInfo, true),
+                tableInfo.getTableName(), sqlAlias(), sqlFrom(), sqlWhereEntityWrapper(true, tableInfo), sqlComment());
         SqlSource sqlSource = languageDriver.createSqlSource(configuration, sql, modelClass);
         return this.addSelectMappedStatementForOther(mapperClass, sqlMethod.getMethod(), sqlSource, Object.class);
     }
diff --git a/src/main/java/com/github/yulichang/method/SelectJoinPage.java b/src/main/java/com/github/yulichang/method/SelectJoinPage.java
index 6993963..1a94e5e 100644
--- a/src/main/java/com/github/yulichang/method/SelectJoinPage.java
+++ b/src/main/java/com/github/yulichang/method/SelectJoinPage.java
@@ -6,14 +6,16 @@ import org.apache.ibatis.mapping.SqlSource;
 
 /**
  * copy {@link com.baomidou.mybatisplus.core.injector.methods.SelectMaps}
+ *
+ * @author yulichang
  */
 public class SelectJoinPage extends MPJAbstractMethod {
 
     @Override
     public MappedStatement injectMappedStatement(Class<?> mapperClass, Class<?> modelClass, TableInfo tableInfo) {
         SqlMethod sqlMethod = SqlMethod.SELECT_JOIN_PAGE;
-        String sql = String.format(sqlMethod.getSql(), sqlSelectColumns(tableInfo, true),
-                tableInfo.getTableName(), sqlWhereEntityWrapper(true, tableInfo), sqlComment());
+        String sql = String.format(sqlMethod.getSql(), sqlFirst(), sqlSelectColumns(tableInfo, true),
+                tableInfo.getTableName(), sqlAlias(), sqlFrom(), sqlWhereEntityWrapper(true, tableInfo), sqlComment());
         SqlSource sqlSource = languageDriver.createSqlSource(configuration, sql, modelClass);
         return this.addSelectMappedStatementForOther(mapperClass, sqlMethod.getMethod(), sqlSource, Object.class);
     }
diff --git a/src/main/java/com/github/yulichang/method/SqlMethod.java b/src/main/java/com/github/yulichang/method/SqlMethod.java
index 75faa14..2ad0fe3 100644
--- a/src/main/java/com/github/yulichang/method/SqlMethod.java
+++ b/src/main/java/com/github/yulichang/method/SqlMethod.java
@@ -15,22 +15,22 @@ public enum SqlMethod {
      * 连表查询
      */
     SELECT_JOIN_ONE("selectJoinOne", "返回一条记录",
-            "<script>\nSELECT %s FROM %s <if test=\"ew.alias != null and ew.alias != ''\">${ew.alias}</if> <if test=\"ew.from != null and ew.from != ''\">${ew.from}</if> %s %s\n</script>"),
+            "<script>\n%s SELECT %s FROM %s %s %s %s %s\n</script>"),
 
     SELECT_JOIN_LIST("selectJoinList", "返回List集合",
-            "<script>\nSELECT %s FROM %s <if test=\"ew.alias != null and ew.alias != ''\">${ew.alias}</if> <if test=\"ew.from != null and ew.from != ''\">${ew.from}</if> %s %s\n</script>"),
+            "<script>\n%s SELECT %s FROM %s %s %s %s %s\n</script>"),
 
     SELECT_JOIN_MAP("selectJoinMap", "返回一个Map",
-            "<script>\nSELECT %s FROM %s <if test=\"ew.alias != null and ew.alias != ''\">${ew.alias}</if> <if test=\"ew.from != null and ew.from != ''\">${ew.from}</if> %s %s\n</script>"),
+            "<script>\n%s SELECT %s FROM %s %s %s %s %s\n</script>"),
 
     SELECT_JOIN_MAPS("selectJoinMaps", "返回Map集合",
-            "<script>\nSELECT %s FROM %s <if test=\"ew.alias != null and ew.alias != ''\">${ew.alias}</if> <if test=\"ew.from != null and ew.from != ''\">${ew.from}</if> %s %s\n</script>"),
+            "<script>\n%s SELECT %s FROM %s %s %s %s %s\n</script>"),
 
     SELECT_JOIN_PAGE("selectJoinPage", "连表查询并分页",
-            "<script>\nSELECT %s FROM %s <if test=\"ew.alias != null and ew.alias != ''\">${ew.alias}</if> <if test=\"ew.from != null and ew.from != ''\">${ew.from}</if> %s %s\n</script>"),
+            "<script>\n%s SELECT %s FROM %s %s %s %s %s\n</script>"),
 
     SELECT_JOIN_MAPS_PAGE("selectJoinMapsPage", "返回Map集合并分页",
-            "<script>\nSELECT %s FROM %s <if test=\"ew.alias != null and ew.alias != ''\">${ew.alias}</if> <if test=\"ew.from != null and ew.from != ''\">${ew.from}</if> %s %s\n</script>");
+            "<script>\n%s SELECT %s FROM %s %s %s %s %s\n</script>");
 
     private final String method;
     private final String desc;
diff --git a/src/main/java/com/github/yulichang/query/MPJLambdaQueryWrapper.java b/src/main/java/com/github/yulichang/query/MPJLambdaQueryWrapper.java
index e89193a..fcb919a 100644
--- a/src/main/java/com/github/yulichang/query/MPJLambdaQueryWrapper.java
+++ b/src/main/java/com/github/yulichang/query/MPJLambdaQueryWrapper.java
@@ -27,6 +27,8 @@ import java.util.stream.Collectors;
  * copy {@link com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper}
  * <p>
  * sqlSelect 由覆盖改为追加
+ *
+ * @author yulichang
  */
 @SuppressWarnings("all")
 public class MPJLambdaQueryWrapper<T> extends AbstractLambdaWrapper<T, MPJLambdaQueryWrapper<T>>
diff --git a/src/main/java/com/github/yulichang/query/MPJQueryWrapper.java b/src/main/java/com/github/yulichang/query/MPJQueryWrapper.java
index 641f633..dd3e70c 100644
--- a/src/main/java/com/github/yulichang/query/MPJQueryWrapper.java
+++ b/src/main/java/com/github/yulichang/query/MPJQueryWrapper.java
@@ -22,6 +22,8 @@ import java.util.stream.Collectors;
 
 /**
  * copy {@link com.baomidou.mybatisplus.core.conditions.query.QueryWrapper}
+ *
+ * @author yulichang
  */
 @SuppressWarnings("serial")
 public class MPJQueryWrapper<T> extends AbstractWrapper<T, String, MPJQueryWrapper<T>>
diff --git a/src/main/java/com/github/yulichang/toolkit/LambdaUtils.java b/src/main/java/com/github/yulichang/toolkit/LambdaUtils.java
index 7e4e0e4..2862d33 100644
--- a/src/main/java/com/github/yulichang/toolkit/LambdaUtils.java
+++ b/src/main/java/com/github/yulichang/toolkit/LambdaUtils.java
@@ -13,7 +13,6 @@ import java.util.Objects;
  * @see com.baomidou.mybatisplus.core.toolkit.LambdaUtils
  * @see org.apache.ibatis.reflection.property.PropertyNamer
  */
-
 public final class LambdaUtils {
 
     /**
diff --git a/src/main/java/com/github/yulichang/toolkit/Wrappers.java b/src/main/java/com/github/yulichang/toolkit/Wrappers.java
new file mode 100644
index 0000000..dbb5520
--- /dev/null
+++ b/src/main/java/com/github/yulichang/toolkit/Wrappers.java
@@ -0,0 +1,40 @@
+package com.github.yulichang.toolkit;
+
+import com.github.yulichang.common.JoinLambdaWrapper;
+import com.github.yulichang.common.support.alias.AliasLambdaQueryWrapper;
+import com.github.yulichang.common.support.alias.AliasQueryWrapper;
+import com.github.yulichang.query.MPJLambdaQueryWrapper;
+import com.github.yulichang.query.MPJQueryWrapper;
+import com.github.yulichang.wrapper.MPJJoinLambdaQueryWrapper;
+
+/**
+ * Wrapper 条件构造
+ *
+ * @author yulichang
+ */
+public class Wrappers {
+
+    public static <T> MPJQueryWrapper<T> queryJoin() {
+        return new MPJQueryWrapper<>();
+    }
+
+    public static <T> MPJLambdaQueryWrapper<T> lambdaJoin() {
+        return new MPJLambdaQueryWrapper<>();
+    }
+
+    public static <T> MPJJoinLambdaQueryWrapper<T> lambdaJoinWrapper() {
+        return new MPJJoinLambdaQueryWrapper<>();
+    }
+
+    public static <T> JoinLambdaWrapper<T> commonJoin() {
+        return new JoinLambdaWrapper<>();
+    }
+
+    public static <T> AliasQueryWrapper<T> aliasQueryJoin() {
+        return new AliasQueryWrapper<>();
+    }
+
+    public static <T> AliasLambdaQueryWrapper<T> aliasLambdaJoin() {
+        return new AliasLambdaQueryWrapper<>();
+    }
+}
diff --git a/src/main/java/com/github/yulichang/wrapper/MPJJoinLambdaQueryWrapper.java b/src/main/java/com/github/yulichang/wrapper/MPJJoinLambdaQueryWrapper.java
index 5d78199..fc035f5 100644
--- a/src/main/java/com/github/yulichang/wrapper/MPJJoinLambdaQueryWrapper.java
+++ b/src/main/java/com/github/yulichang/wrapper/MPJJoinLambdaQueryWrapper.java
@@ -24,6 +24,8 @@ import java.util.stream.Collectors;
 
 /**
  * copy {@link com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper}
+ *
+ * @author yulichang
  */
 @SuppressWarnings("all")
 public class MPJJoinLambdaQueryWrapper<T> extends MPJAbstractLambdaWrapper<T, MPJJoinLambdaQueryWrapper<T>>