if(resultMap.hasNestedResultMaps()) {// 包含嵌套映射的处理流程 ensureNoRowBounds(); checkResultHandler(); handleRowValuesForNestedResultMap(rsw,resultMap,resultHandler,rowBounds,parentMapping); }else{// 简单映射的处理 handleRowValuesForSimpleResultMap(rsw,resultMap,resultHandler,rowBounds,parentMapping);...
= null "> and age > #{age} </if> <if test=" name != null "> and name like concat(#{name},'%') </if> 很明显,if 标签元素常用于包含 where 子句的条件拼接,它相当于 Java 中的 if 语句,和 test 属性搭配使用,通过判断参数值来决定是否使用某个查询条件,也可用于 Update 语句中判断是否...
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ‘WHERE name = ‘%李兰%’’ at line 3 async getList () { const {data: res} = await this.$http.get("getone", {params:{ name: this.name} }); ...
>resultHandler,RowBounds rowBounds,ResultMapping parentMapping)throws SQLException{if(resultMap.hasNestedResultMaps()){// 包含嵌套映射的处理流程ensureNoRowBounds();checkResultHandler();handleRowValuesForNestedResultMap(rsw,resultMap,resultHandler,rowBounds,parentMapping);}else{// 简单映射的处理handleRowValues...
class RawLanguageDriver extends XMLLanguageDriver { // RAW 不能包含动态内容 private void checkIsNotDynamic(SqlSource source) { if (!RawSqlSource.class.equals(source.getClass())) { throw new BuilderException( "Dynamic content is not allowed when using RAW language" ); } } } 至此基本逻辑我们...
if (CLOSE.hashCode() == methodName.hashCode() && CLOSE.equals(methodName)) { dataSource.pushConnection(this); return null; } else { try { if (!Object.class.equals(method.getDeclaringClass())) { checkConnection(); } return method.invoke(realConnection, args); ...
mybatis:## 不常用的配置check-config-location:true# 是否检测MyBatis运行参数配置文件config-location:classpath:mybatis/mybatis-config.xml# mybatis配置文件所在路径type-handlers-package:test.springboot.handlers# 配置类型处理器包名executor-type:SIMPLE# 指定执行器类型configuration:default-fetch-size:20default...
@Test public void checkLoginByMap() { SqlSession sqlSession = SqlSessionUtils.getSqlSession(); ParameterMapper mapper = sqlSession.getMapper(ParameterMapper.class); Map<String,Object> map = new HashMap<>(); map.put("usermane","admin"); map.put("password","123456"); User user = mapper.che...
16:54:53.079 [http-nio-8080-exec-4] DEBUG c.a.s.m.S.checkMenuNameUnique - [debug,137] - ==> Preparing: select menu_id, menu_name, parent_id, order_num, path, component,query, is_frame, is_cache, menu_type, visible, status, ifnull(perms,'') as perms, icon, create_time fro...
现在以SimpleStatementHandler为例子,最终调用的还是connection.createStatement()方法,回到了最初的起点,也就是MyBatis对JDBC操作进行了包装。 @OverrideprotectedStatementinstantiateStatement(Connectionconnection)throwsSQLException{// 实际还是调用的connection.createStatement()方法if(mappedStatement.getResultSetType...