third_codes/mybatis-plus-join
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简化代码

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yulichang 2024-01-17 16:34:55 +08:00
parent 39942b28ce
commit fde21a04dd
3 changed files with 21 additions and 29 deletions
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8
mybatis-plus-join-core/src/main/java/com/github/yulichang/toolkit/JSqlParserHelper.java
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@ -36,15 +36,15 @@ public final class JSqlParserHelper {
SelectExpressionItem selectExpressionItem = (SelectExpressionItem) item;
if (null == selectExpressionItem.getAlias()) {
if (selectExpressionItem.getExpression() instanceof Column) {
col = StringUtils.getTargetColumn(((Column) selectExpressionItem.getExpression()).getColumnName());
col = ((Column) selectExpressionItem.getExpression()).getColumnName();
} else {
col = StringUtils.getTargetColumn(selectExpressionItem.getExpression().toString());
col = selectExpressionItem.getExpression().toString();
}
} else {
col = StringUtils.getTargetColumn(selectExpressionItem.getAlias().getName());
col = selectExpressionItem.getAlias().getName();
}
if (StringUtils.isNotBlank(col)) {
columConsumer.accept(col);
columConsumer.accept(StringUtils.getTargetColumn(col));
}
}
}

37
mybatis-plus-join-core/src/main/java/com/github/yulichang/wrapper/JoinAbstractLambdaWrapper.java
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@ -21,9 +21,7 @@ import lombok.Getter;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.nio.charset.StandardCharsets;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import java.util.*;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.function.BiConsumer;
import java.util.function.Function;
@ -371,30 +369,19 @@ public abstract class JoinAbstractLambdaWrapper<T, Children extends JoinAbstract
/**
* 检验表是否已连接
*/
public boolean checkJoinTable(Class clazz) {
TableInfo info = TableHelper.get(clazz);
Asserts.hasTable(info, clazz);
String tableName = info.getTableName();
for (Children wrapper : onWrappers) {
if (StringUtils.isBlank(wrapper.from.getStringValue())) {
if (this.subLogicSql && this.logicDelType == LogicDelTypeEnum.ON) {
TableInfo tableInfo = TableHelper.get(wrapper.getJoinClass());
if (tableInfo != null && tableName.equals(tableInfo.getTableName())) {
return true;
}
}
if (wrapper.getTableName().equals(tableName)) {
return true;
}
public boolean checkJoinTable(Class<?> clazz) {
return onWrappers.stream().anyMatch(wrapper -> {
if (Objects.equals(wrapper.getJoinClass(), clazz)) {
return true;
} else {
if (wrapper.from.getStringValue().contains(Constant.JOIN + StringPool.SPACE + tableName)) {
return true;
}
TableInfo info = TableHelper.get(clazz);
Asserts.hasTable(info, clazz);
String tableName = info.getTableName();
return Optional.ofNullable(wrapper.from.getStringValue())
.map(w -> w.contains(Constant.JOIN + StringPool.SPACE + tableName + StringPool.SPACE))
.orElse(false);
}
}
return false;
});
}
/**

5
mybatis-plus-join-test/test-join/src/test/java/com/github/yulichang/test/join/LambdaWrapperTest.java
View File

@ -130,6 +130,11 @@ class LambdaWrapperTest {
.orderByDesc(UserDO::getId);
List<UserDTO> list = userMapper.selectJoinList(UserDTO.class, wrapper);
assert wrapper.checkJoinTable(AddressDO.class);
assert wrapper.checkJoinTable(AreaDO.class);
assert !wrapper.checkJoinTable(UserDO.class);
assert !wrapper.checkJoinTable(UserDto.class);
assert list.get(0).getAddressList() != null && list.get(0).getAddressList().get(0).getId() != null;
list.forEach(System.out::println);
}