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https://gitee.com/best_handsome/mybatis-plus-join
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优化别名
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yulichang
parent
59a85f6414
commit
e8d92f10e1
@ -9,8 +9,4 @@ import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
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@SuppressWarnings("unused")
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public class MPJBaseServiceImpl<M extends MPJBaseMapper<T>, T> extends ServiceImpl<M, T> implements MPJBaseService<T> {
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@Override
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public Class<T> currentModelClass() {
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return super.currentModelClass();
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}
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}
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@ -123,7 +123,7 @@ public class TableList {
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}
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} else if (list.size() > 1) {
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for (Node n : list) {
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if (n.getClazz() != node.getClazz()) {
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if (n.getIndex() != node.getIndex()) {
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return n.isHasAlias() ? n.getAlias() : (n.getAlias() + n.getIndex());
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}
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}
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@ -2,7 +2,9 @@ package com.github.yulichang.wrapper.interfaces;
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import com.baomidou.mybatisplus.core.conditions.Wrapper;
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import com.baomidou.mybatisplus.core.metadata.IPage;
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import com.baomidou.mybatisplus.core.toolkit.Assert;
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import com.baomidou.mybatisplus.core.toolkit.CollectionUtils;
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import com.github.yulichang.base.MPJBaseMapper;
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import com.github.yulichang.interfaces.MPJBaseJoin;
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import com.github.yulichang.toolkit.SqlHelper;
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@ -24,6 +26,22 @@ public interface Chain<T> {
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Class<T> getEntityClass();
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/**
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* 链式调用 等效于MP mapper的 selectCount()
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* <p>
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* 构造方法必须传 class 或 entity 否则会报错
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* new MPJLambdaWrapper(User.class)
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* new MPJQueryWrapper(User.class)
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* JoinWrappers.\<User\>lambdaJoin(User.class)
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* JoinWrappers.\<User\>queryJoin(User.class)
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*/
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default Long count() {
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return SqlHelper.exec(getEntityClass(), mapper -> {
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Assert.isTrue(mapper instanceof MPJBaseMapper, "mapper <%s> is not extends MPJBaseMapper", mapper.getClass().getSimpleName());
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return ((MPJBaseMapper<T>) mapper).selectJoinCount((MPJBaseJoin<T>) this);
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});
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}
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/**
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* 链式调用 等效于 selectOne
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* <p>
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@ -1,7 +1,12 @@
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//package com.github.yulichang.test.config;
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//
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//import com.baomidou.mybatisplus.core.injector.AbstractMethod;
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//import com.baomidou.mybatisplus.core.injector.ISqlInjector;
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//import com.baomidou.mybatisplus.core.toolkit.CollectionUtils;
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//import com.baomidou.mybatisplus.core.toolkit.StringUtils;
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//import com.baomidou.mybatisplus.extension.injector.methods.InsertBatchSomeColumn;
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//import com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor;
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//import com.github.yulichang.injector.MPJSqlInjector;
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//import com.github.yulichang.test.util.ThreadLocalUtils;
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//import org.apache.ibatis.cache.CacheKey;
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//import org.apache.ibatis.executor.Executor;
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@ -13,9 +18,13 @@
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//import org.apache.ibatis.session.RowBounds;
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//import org.springframework.context.annotation.Bean;
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//import org.springframework.context.annotation.Configuration;
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//import org.springframework.context.annotation.Primary;
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//import org.springframework.core.Ordered;
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//import org.springframework.core.annotation.Order;
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//import org.springframework.stereotype.Component;
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//
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//import java.sql.Connection;
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//import java.util.List;
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//import java.util.Objects;
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//import java.util.StringTokenizer;
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//
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@ -30,6 +39,21 @@
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// return new PaginationInterceptor();
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// }
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//
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// @Bean
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// @Primary
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// @Order(Ordered.HIGHEST_PRECEDENCE)
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// public ISqlInjector sqlInjector() {
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// return new MPJSqlInjector() {
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// @Override
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// public List<AbstractMethod> getMethodList(Class<?> mapperClass) {
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// List<AbstractMethod> list = super.getMethodList(mapperClass);
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// //添加你的方法
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// list.add(new InsertBatchSomeColumn());
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// return list;
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// }
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// };
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// }
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//
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// @Component
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// @Intercepts({
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// @Signature(type = StatementHandler.class, method = "prepare", args = {Connection.class, Integer.class}),
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@ -47,22 +71,35 @@
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// if (target instanceof StatementHandler) {
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// boundSql = ((StatementHandler) target).getBoundSql();
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// String sql = boundSql.getSql();
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// String s = ThreadLocalUtils.get();
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// List<String> strings = ThreadLocalUtils.get();
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// if (CollectionUtils.isNotEmpty(strings)) {
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// boolean flag = false;
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// String ss = null;
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// for (String s : strings) {
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// if (sql != null && s != null) {
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// String s1 = formatSql(sql);
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// String s2 = formatSql(s);
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// if (StringUtils.isNotBlank(s)) {
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// if (!Objects.equals(s1.toLowerCase(), s2.toLowerCase())) {
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// System.err.println("执行sql: " + removeExtraWhitespaces(sql));
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// System.err.println("预期sql: " + removeExtraWhitespaces(s));
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// throw new RuntimeException("sql error");
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// }else {
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// ss = s;
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// } else {
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// flag = true;
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// break;
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//
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// }
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// }
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// }
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// }
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// if (flag) {
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// System.out.println("===============================================");
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// System.out.println();
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// System.out.println("pass");
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// System.out.println();
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// System.out.println("===============================================");
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// }
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// } else {
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// System.err.println("执行sql: " + removeExtraWhitespaces(sql));
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// System.err.println("预期sql: " + removeExtraWhitespaces(ss));
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// throw new RuntimeException("sql error");
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// }
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// }
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// }
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@ -54,6 +54,14 @@ public class MybatisPlusConfig {
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@Order(Ordered.HIGHEST_PRECEDENCE)
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public ISqlInjector sqlInjector() {
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return new MPJSqlInjector() {
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@Override
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public List<AbstractMethod> getMethodList(Class<?> mapperClass) {
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List<AbstractMethod> list = super.getMethodList(mapperClass);
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//添加你的方法
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list.add(new InsertBatchSomeColumn());
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return list;
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}
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@Override
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public List<AbstractMethod> getMethodList(Class<?> mapperClass, TableInfo tableInfo) {
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List<AbstractMethod> list = super.getMethodList(mapperClass, tableInfo);
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@ -1,5 +1,9 @@
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package com.github.yulichang.test.join.service;
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public interface UserService {
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import com.github.yulichang.base.MPJBaseService;
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import com.github.yulichang.test.join.entity.UserDO;
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public interface UserService extends MPJBaseService<UserDO> {
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}
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@ -1,9 +1,13 @@
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package com.github.yulichang.test.join.service.impl;
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import com.github.yulichang.base.MPJBaseServiceImpl;
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import com.github.yulichang.test.join.entity.UserDO;
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import com.github.yulichang.test.join.mapper.UserMapper;
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import com.github.yulichang.test.join.service.UserService;
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import org.springframework.stereotype.Service;
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@Service
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public class UserServiceImpl implements UserService {
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public class UserServiceImpl extends MPJBaseServiceImpl<UserMapper, UserDO> implements UserService {
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}
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@ -685,7 +685,8 @@ class LambdaWrapperTest {
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.lt(UserDO::getId, 8));
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assert dos.size() == 4;
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ThreadLocalUtils.set("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 < ?)");
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ThreadLocalUtils.set("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 < ?)",
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"SELECT * FROM `user` t WHERE t.del=false AND (t.id > ? AND t.id < ?) ");
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List<UserDO> dos1 = userMapper.selectList(new MPJLambdaWrapper<UserDO>()
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.gt(UserDO::getId, 3)
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.lt(UserDO::getId, 8));
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@ -893,4 +894,19 @@ class LambdaWrapperTest {
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assert list.get(0).getAddressList() != null && list.get(0).getAddressList().get(0).getId() != null;
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list.forEach(System.out::println);
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}
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@Test
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void joinRandomMap111() {
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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");
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MPJLambdaWrapper<AddressDO> wrapper = JoinWrappers.lambda(AddressDO.class)
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.selectAll(AddressDO.class)
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// .selectAssociation(AddressDO::getUsera, map -> map
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// .all("t1", UserDO.class)
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// .result("t2", UserDO::getName, UserDO::getPname))
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.leftJoin(UserDO.class, UserDO::getAddressId, AddressDO::getId)
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.leftJoin(UserDO.class, UserDO::getPid, UserDO::getId);
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List<AddressDO> addressDOS = wrapper.list();
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System.out.println(1);
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}
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}
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