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...
>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...
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: } }); // res ...
Future<IcpStatusVo> future = checkIcpThreadPool.submit(new IcpCheckThread(illegalDomain.getDomain(), configMap)); results.add(future); } 12345678910111213 资源释放 使用完毕后,在finally块释放资源,否则游标不关闭也可能会导致内存溢出问题 try{
*/Objecttransaction=doGetTransaction();booleandebugEnabled=logger.isDebugEnabled();// 如果当前已经在一个事务中,那么需要按照定义的属性采取对应的行为if(isExistingTransaction(transaction)) {// Existing transaction found -> check propagation behavior to find out how to behave.returnhandleExistingTransaction(...
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...
int resultSetType, int resultSetConcurrency) throws SQLException {synchronized (getConnectionMutex()) {checkClosed();/// FIXME: Create warnings if can't create results of the given type or concurrency//当Client开启 useServerPreparedStmts 并且Server支持 ServerPreparePreparedStatement pStmt = null;boolean...
if (type == null) throw new IllegalArgumentException("Type argument cannot be null"); this.type = type; } ... 处理枚举类型 若想映射枚举类型Enum,则需要从EnumTypeHandler或者EnumOrdinalTypeHandler中选择一个来使用。 比如说我们想存储取近似值时用到的舍入模式。默认情况下,MyBatis 会利用EnumTypeHandler...
@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...