Mybatis-Plus 实战完整学习笔记(十一)------条件构造器删除,修改,conditon

1、修改功能--其他过滤方式跟select一样

 /**
      * 修改条件构造器
      * @throws SQLException
      */
     @Test
     public void selectUpdate() throws SQLException {

         Employee employee = new Employee();
         employee.setGender(1);

         // 添加过滤条件
         Integer result = employeeMapper.update(employee,new UpdateWrapper<>());

         if (result>0) {
             logger.info("++ 更新成功+++++" + result);
         }

     }

2、删除功能

  /**
      * 删除条件
      * @throws SQLException
      */
     @Test
     public void deleted() throws SQLException {

         Employee employee = new Employee();
         employee.setId(1);

         // 删除过滤条件
         Integer result = employeeMapper.delete(new QueryWrapper<>());

         if (result>0) {
             logger.info("++ 删除成功+++++" + result);
         }

     }

3、Condition跟QueryWrapper一样

  /**
      * Condition用法
      *
      * @throws SQLException
      */
     @Test
     public void selectCondition() throws SQLException {

         //Condition用法
         QueryWrapper condition = Condition.create().eq("age", "20");

         List employeeList = employeeMapper.selectList(condition);

         if (!employeeList.isEmpty()) {
             logger.info("++条件构造器查询员工信息+++++" + gson.toJson(employeeList));
         }

     }