Mybatis-Plus 实战完整学习笔记(八)------delete测试

1、根据ID删除一个员工deleteById

 /**
     * 删除客户
     *
     * @throws SQLException
     */
    @Test
    public void deletedMethod() throws SQLException {

        // 1.根据ID删除一个员工
        Integer result = employeeMapper.deleteById(1);

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

    }

2、根据多个ID删除多个员工

/**
     * 删除客户
     *
     * @throws SQLException
     */
    @Test
    public void deletedMethod() throws SQLException {

 
       // 2.多个ID删除
        List<Integer> idList = new  ArrayList<>();
        idList.add(21);
        idList.add(20);

        Integer result = employeeMapper.deleteBatchIds(idList);


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

    }

3、根据map条件删除

 /**
     * 删除客户
     *
     * @throws SQLException
     */
    @Test
    public void deletedMethod() throws SQLException {

        // 3.根据map条件删除
        Employee employee = employeeMapper.selectById(19);

        Map<String, Object> map = new HashMap<>(16);
        map.put("email", employee.getEmail());
        map.put("age", employee.getAge());

        Integer result = employeeMapper.deleteByMap(map);

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

    }

4、根据条件构造器删除

/**
     * 删除客户
     *
     * @throws SQLException
     */
    @Test
    public void deletedMethod() throws SQLException {

        // 4.根据条件构造器删除
        Integer result = employeeMapper.delete(new QueryWrapper<Employee>()
                .eq("gender", 1));

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