Mybatis-Plus 實戰完整學習筆記(十一)------條件構造器刪除,修改,conditon

1、修改功能--其他過濾方式跟select一樣

/**
     * 修改條件構造器
     * @throws SQLException
     */
    @Test
    public void selectUpdate() throws SQLException {

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

        // 添加過濾條件
        Integer result = employeeMapper.update(employee,new UpdateWrapper<>());


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

    }

2、刪除功能

 /**
     * 刪除條件
     * @throws SQLException
     */
    @Test
    public void deleted() throws SQLException {


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

        // 刪除過濾條件
        Integer result = employeeMapper.delete(new QueryWrapper<>());

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

    }

3、Condition跟QueryWrapper一樣

 /**
     * 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("++條件構造器查詢員工信息+++++" + gson.toJson(employeeList));
        }

    }