SSM框架的(CRUD)_删除_批量删除完成28

一、给全部删除一个id

<button class="btn btn-danger" id="emp_delete_all_btn">删除</button>

二、发送ajax请求

//点击全部删除，就批量删除
        $("#emp_delete_all_btn").click(function(){
            var empNames = "";
            var del_idstr = "";
            $.each($(".check_item:checked"),function(){
                //this
                empNames += $(this).parents("tr").find("td:eq(2)").text()+",";
                //组装员工id字符串
                del_idstr += $(this).parents("tr").find("td:eq(1)").text()+"-";
            });
            //去除empNames多余的,
            empNames = empNames.substring(0, empNames.length-1);
            //去除删除的id多余的-
            del_idstr = del_idstr.substring(0, del_idstr.length-1);
            if(confirm("确认删除【"+empNames+"】吗？")){
                //发送ajax请求删除
                $.ajax({
                    url:"${APP_PATH}/emp/"+del_idstr,
                    type:"DELETE",
                    success:function(result){
                        alert(result.msg);
                        //回到当前页面
                        to_page(currentPage);
                    }
                });
            }
        })

三、改造EmployeeController

/**
     * 单个批量二合一
     * 批量删除：1-2-3
     * 单个删除：1
     * @param id
     * @return
     */
    @ResponseBody
    @RequestMapping(value="/emp/{ids}",method=RequestMethod.DELETE)
    public Msg deleteEmp(@PathVariable("ids")String ids) {
        //批量删除
        if(ids.contains("-")){
            List<Integer> del_ids = new ArrayList<Integer>();
            String[] str_ids = ids.split("-");
            //组装id的集合
            for (String string : str_ids) {
                del_ids.add(Integer.parseInt(string));
            }
            employeeService.deleteBatch(del_ids);
        }else {
            Integer id = Integer.parseInt(ids);
            employeeService.deleteEmp(id);
        }
        return Msg.success();
    }

四、EmployeeService新增

public void deleteBatch(List<Integer> ids) {
        // TODO Auto-generated method stub
        EmployeeExample example = new EmployeeExample();
        Criteria criteria = example.createCriteria();
        criteria.andEmpIdIn(ids);
        employeeMapper.deleteByExample(example);
    }