本笔记大多来源于尚硅谷【封捷老师讲的尚筹网项目】
视频地址:
尚硅谷尚筹网项目视频教程
下载链接:https://pan.baidu.com/s/1WOLG7b4yHkQfSMu3fMsOBA
提取码:s5gw
目标:实现对角色的增、删、改、查【基于ajax{地址栏不变}】
1、角色分页
1.1目标
将角色信息分页显示
1.2思路

1.3代码
创建页面role-page.jsp
<%--
Created by IntelliJ IDEA.
User: 25017
Date: 2020/4/6
Time: 13:46
To change this template use File | Settings | File Templates.
--%>
<%--
Created by IntelliJ IDEA.
User: 25017
Date: 2020/3/23
Time: 12:44
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<!DOCTYPE html>
<html lang="UTF-8">
<%@include file="/WEB-INF/include-head.jsp" %>
<body>
<%@include file="/WEB-INF/include-nav.jsp" %>
<div class="container-fluid">
<div class="row">
<%@include file="/WEB-INF/include-sidebar.jsp" %>
<div class="col-sm-9 col-sm-offset-3 col-md-10 col-md-offset-2 main">
<div class="panel panel-default">
<div class="panel-heading">
<h3 class="panel-title"><i class="glyphicon glyphicon-th"></i> 数据列表</h3>
</div>
<div class="panel-body">
<form class="form-inline" role="form" style="float:left;">
<div class="form-group has-feedback">
<div class="input-group">
<div class="input-group-addon">查询条件</div>
<input class="form-control has-success" type="text" placeholder="请输入查询条件">
</div>
</div>
<button type="button" class="btn btn-warning"><i class="glyphicon glyphicon-search"></i> 查询</button>
</form>
<button type="button" class="btn btn-danger" style="float:right;margin-left:10px;"><i class=" glyphicon glyphicon-remove"></i> 删除</button>
<button type="button" class="btn btn-primary" style="float:right;" onclick="window.location.href='form.html'"><i class="glyphicon glyphicon-plus"></i> 新增</button>
<br>
<hr style="clear:both;">
<div class="table-responsive">
<table class="table table-bordered">
<thead>
<tr>
<th width="30">#</th>
<th width="30"><input type="checkbox"></th>
<th>名称</th>
<th width="100">操作</th>
</tr>
</thead>
<tbody>
<tr>
<td>1</td>
<td><input type="checkbox"></td>
<td>PM - 项目经理</td>
<td>
<button type="button" class="btn btn-success btn-xs"><i class=" glyphicon glyphicon-check"></i></button>
<button type="button" class="btn btn-primary btn-xs"><i class=" glyphicon glyphicon-pencil"></i></button>
<button type="button" class="btn btn-danger btn-xs"><i class=" glyphicon glyphicon-remove"></i></button>
</td>
</tr>
<tr>
<td>2</td>
<td><input type="checkbox"></td>
<td>SE - 软件工程师</td>
<td>
<button type="button" class="btn btn-success btn-xs"><i class=" glyphicon glyphicon-check"></i></button>
<button type="button" class="btn btn-primary btn-xs"><i class=" glyphicon glyphicon-pencil"></i></button>
<button type="button" class="btn btn-danger btn-xs"><i class=" glyphicon glyphicon-remove"></i></button>
</td>
</tr>
<tr>
<td>3</td>
<td><input type="checkbox"></td>
<td>PG - 程序员</td>
<td>
<button type="button" class="btn btn-success btn-xs"><i class=" glyphicon glyphicon-check"></i></button>
<button type="button" class="btn btn-primary btn-xs"><i class=" glyphicon glyphicon-pencil"></i></button>
<button type="button" class="btn btn-danger btn-xs"><i class=" glyphicon glyphicon-remove"></i></button>
</td>
</tr>
<tr>
<td>4</td>
<td><input type="checkbox"></td>
<td>TL - 组长</td>
<td>
<button type="button" class="btn btn-success btn-xs"><i class=" glyphicon glyphicon-check"></i></button>
<button type="button" class="btn btn-primary btn-xs"><i class=" glyphicon glyphicon-pencil"></i></button>
<button type="button" class="btn btn-danger btn-xs"><i class=" glyphicon glyphicon-remove"></i></button>
</td>
</tr>
<tr>
<td>5</td>
<td><input type="checkbox"></td>
<td>GL - 组长</td>
<td>
<button type="button" class="btn btn-success btn-xs"><i class=" glyphicon glyphicon-check"></i></button>
<button type="button" class="btn btn-primary btn-xs"><i class=" glyphicon glyphicon-pencil"></i></button>
<button type="button" class="btn btn-danger btn-xs"><i class=" glyphicon glyphicon-remove"></i></button>
</td>
</tr>
<tr>
<td>6</td>
<td><input type="checkbox"></td>
<td>QA - 品质保证</td>
<td>
<button type="button" class="btn btn-success btn-xs"><i class=" glyphicon glyphicon-check"></i></button>
<button type="button" class="btn btn-primary btn-xs"><i class=" glyphicon glyphicon-pencil"></i></button>
<button type="button" class="btn btn-danger btn-xs"><i class=" glyphicon glyphicon-remove"></i></button>
</td>
</tr>
<tr>
<td>7</td>
<td><input type="checkbox"></td>
<td>QC - 品质控制</td>
<td>
<button type="button" class="btn btn-success btn-xs"><i class=" glyphicon glyphicon-check"></i></button>
<button type="button" class="btn btn-primary btn-xs"><i class=" glyphicon glyphicon-pencil"></i></button>
<button type="button" class="btn btn-danger btn-xs"><i class=" glyphicon glyphicon-remove"></i></button>
</td>
</tr>
<tr>
<td>8</td>
<td><input type="checkbox"></td>
<td>SA - 软件架构师</td>
<td>
<button type="button" class="btn btn-success btn-xs"><i class=" glyphicon glyphicon-check"></i></button>
<button type="button" class="btn btn-primary btn-xs"><i class=" glyphicon glyphicon-pencil"></i></button>
<button type="button" class="btn btn-danger btn-xs"><i class=" glyphicon glyphicon-remove"></i></button>
</td>
</tr>
<tr>
<td>8</td>
<td><input type="checkbox"></td>
<td>CMO / CMS - 配置管理员</td>
<td>
<button type="button" class="btn btn-success btn-xs"><i class=" glyphicon glyphicon-check"></i></button>
<button type="button" class="btn btn-primary btn-xs"><i class=" glyphicon glyphicon-pencil"></i></button>
<button type="button" class="btn btn-danger btn-xs"><i class=" glyphicon glyphicon-remove"></i></button>
</td>
</tr>
</tbody>
<tfoot>
<tr>
<td colspan="6" align="center">
<ul class="pagination">
<li class="disabled"><a href="#">上一页</a></li>
<li class="active"><a href="#">1 <span class="sr-only">(current)</span></a></li>
<li><a href="#">2</a></li>
<li><a href="#">3</a></li>
<li><a href="#">4</a></li>
<li><a href="#">5</a></li>
<li><a href="#">下一页</a></li>
</ul>
</td>
</tr>
</tfoot>
</table>
</div>
</div>
</div>
</div>
</div>
</div>
</body>
</html>
由于去往角色页面不需要携带其他参数,直接使用view-controller跳转
<mvc:view-controller path="/role/to/page.html" view-name="role-page"/>
include-sidebar.jsp页面修改:
<a href="role/to/page.html"><i class="glyphicon glyphicon-king"></i> 角色维护</a>
后端代码【和查询管理员类似】:
mapper.xml:
<select id="selectRoleByKeyword" resultMap="BaseResultMap">
select
id, name
from
t_role
where
name like concat("%",#{keyword},"%")
</select>
接口:
/**
* 查询角色数据
* @param keywords
* @return
*/
List<Role> selectRoleByKeyword(String keywords);
service实现:
package com.atguigu.crowd.service.impl;
import com.atguigu.crowd.entity.Role;
import com.atguigu.crowd.mapper.RoleMapper;
import com.atguigu.crowd.service.api.RoleService;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
@Service
public class RoleServiceImpl implements RoleService {
@Autowired
private RoleMapper roleMapper;
/**
* 查询角色的分页数据
* @param pageNum 当前页号
* @param pageSize 每页的条数
* @param keyword 关键字模糊匹配
* @return
*/
@Override
public PageInfo<Role> getPageInfo(Integer pageNum, Integer pageSize, String keyword) {
// 开启分页
PageHelper.startPage(pageNum,pageSize);
// 执行查询
List<Role> roles = roleMapper.selectRoleByKeyword(keyword);
// 返回数据
return new PageInfo<>(roles);
}
}
handler:
package com.atguigu.crowd.mvc.handler;
import com.atguigu.crowd.entity.Role;
import com.atguigu.crowd.service.api.RoleService;
import com.atguigu.crowd.util.ResultEntity;
import com.github.pagehelper.PageInfo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
@Controller
public class RoleHandler {
@Autowired
private RoleService roleService;
@ResponseBody
@RequestMapping("/role/get/page/info.json")
public ResultEntity<PageInfo<Role>> getPageInfo(
@RequestParam(value="pageNum", defaultValue="1") Integer pageNum,
@RequestParam(value="pageSize", defaultValue="5") Integer pageSize,
@RequestParam(value="keyword", defaultValue="") String keyword) {
// 调用 Service 方法获取分页数据
PageInfo<Role> pageInfo = roleService.getPageInfo(pageNum, pageSize, keyword);
// 封装到 ResultEntity 对象中返回(如果上面的操作抛出异常,交给异常映射机制处理)
return ResultEntity.successWithData(pageInfo);
}
}
页面:
<link rel="stylesheet" href="css/pagination.css"> <script type="text/javascript" src="jquery/jquery.pagination.js"></script> <script type="text/javascript" src="crowd/my-role.js"></script>
外部my-role.js文件:
/*
本js文件是用于实现角色的分页
*/
$(function(){
// 1.为分页操作准备初始化数据
window.pageNum = 1;
window.pageSize = 5;
window.keyword = "";
// 2.调用执行分页的函数,显示分页效果
generatePage();
});
// 执行分页,生成页面效果,任何时候调用这个函数都会重新加载页面
function generatePage() {
// 1.获取分页数据
var pageInfo = getPageInfoRemote();
// 2.填充表格
fillTableBody(pageInfo);
}
// 远程访问服务器端程序获取 pageInfo 数据
function getPageInfoRemote() {
// 调用$.ajax()函数发送请求并接受$.ajax()函数的返回值
var ajaxResult =
$.ajax({
"url": "role/get/page/info.json",
"type":"post",
"data": {
"pageNum": window.pageNum,
"pageSize": window.pageSize,
"keyword": window.keyword
},
"async":false,
"dataType":"json"
});
// console.log(ajaxResult);
// 判断当前响应状态码是否为 200
var statusCode = ajaxResult.status;
// 如果当前响应状态码不是 200,说明发生了错误或其他意外情况,显示提示消息,让 当前函数停止执行
if(statusCode != 200) {
layer.msg("失败!响应状态码="+statusCode+" 说明信息="+ajaxResult.statusText);
return null;
}
// 如果响应状态码是 200,说明请求处理成功,获取 pageInfo
var resultEntity = ajaxResult.responseJSON;
// 从 resultEntity 中获取 result 属性
var result = resultEntity.result;
// 判断 result 是否成功
if(result == "FAILED") {
layer.msg(resultEntity.message);
return null;
}
// 确认 result 为成功后获取 pageInfo
var pageInfo = resultEntity.data;
// 返回 pageInfo
return pageInfo;
}
// 填充表格
function fillTableBody(pageInfo) {
// 清除 tbody 中的旧的内容
$("#rolePageBody").empty();
// 这里清空是为了让没有搜索结果时不显示页码导航条
$("#Pagination").empty();
// 判断 pageInfo 对象是否有效
if(pageInfo == null || pageInfo == undefined
|| pageInfo.list == null || pageInfo.list.length == 0) {
$("#rolePageBody").append("<tr><td colspan='4' align='center'>抱歉!没有查询到您搜索的数据!</td></tr>");
return ;
}
// 使用 pageInfo 的 list 属性填充 tbody
for(var i = 0; i < pageInfo.list.length; i++) {
var role = pageInfo.list[i];
var roleId = role.id;
var roleName = role.name;
var numberTd = "<td>"+(i+1)+"</td>";
var checkboxTd = "<td><input type='checkbox'></td>";
var roleNameTd = "<td>"+roleName+"</td>";
var checkBtn = "<button type='button' class='btn btn-success btn-xs'><i class=' glyphicon glyphicon-check'></i></button>";
var pencilBtn = "<button type='button' class='btn btn-primary btn-xs'><i class=' glyphicon glyphicon-pencil'></i></button>";
var removeBtn = "<button type='button' class='btn btn-danger btn-xs'><i class=' glyphicon glyphicon-remove'></i></button>";
var buttonTd = "<td>"+checkBtn+" "+pencilBtn+" "+removeBtn+"</td>";
var tr = "<tr>"+numberTd+checkboxTd+roleNameTd+buttonTd+"</tr>";
$("#rolePageBody").append(tr);
}
// 生成分页导航条
generateNavigator(pageInfo);
}
// 生成分页页码导航条
function generateNavigator(pageInfo) {
// 获取总记录数
var totalRecord = pageInfo.total;
// 声明相关属性
var properties = {
"num_edge_entries": 3,
"num_display_entries": 5,
"callback": paginationCallBack,
"items_per_page": pageInfo.pageSize,
"current_page": pageInfo.pageNum - 1,
"prev_text": "上一页",
"next_text": "下一页"
}
// 调用 pagination()函数
$("#Pagination").pagination(totalRecord, properties);
}
// 翻页时的回调函数
function paginationCallBack(pageIndex, jQuery) {
// 修改 window 对象的 pageNum 属性
window.pageNum = pageIndex + 1;
// 调用分页函数
generatePage();
// 取消页码超链接的默认行为
return false;
}
关键字查询:
页面:
<input id="keywordInput" class="form-control has-success" type="text" placeholder="请输入查询条件"> <button id="searchBtn" type="button" class="btn btn-warning"><i class="glyphicon glyphicon-search"></i> 查询</button>
js代码【注意:需要将其放入文档就绪函数中】:
<script type="text/javascript">
$(function(){
// 关键字查询功能
$("#searchBtn").click(function(){
// ①获取关键词数据赋值给对应的全局变量
window.keyword = $("#keywordInput").val(); window.pageNum = 1;
// ②调用分页函数刷新页面
generatePage();
});
});
</script>
2、角色新增
目标:
通过在打开的模态框中输入角色名称,执行对新角色的保存。
思路:

代码:
role-add-modal.jsp
<%--
Created by IntelliJ IDEA.
User: 25017
Date: 2020/4/6
Time: 22:52
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<div id="addModal" class="modal fade" tabindex="-1" role="dialog">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
<h4 class="modal-title">尚筹网系统弹窗</h4>
</div>
<div class="modal-body">
<form class="form-signin" role="form">
<div class="form-group has-success has-feedback">
<inputtype="text" name="roleName" class="form-control" id="inputSuccess4" placeholder="请输入 角色名称" autofocus>
</div>
</form>
</div>
<div class="modal-footer">
<button id="saveRoleBtn" type="button" class="btn btn-primary"> 保 存 </button>
</div>
</div>
</div>
</div>
role-page页面修改:
新增按钮添加id属性: <button id="showAddModalBtn" type="button" class="btn btn-primary" style="float:right;"><i class="glyphicon glyphicon-plus"></i> 新增</button> 引入添加模态框: <%@include file="/WEB-INF/role-add-modal.jsp" %>
js代码:
// 4.点击新增按钮打开模态框
$("#showAddModalBtn").click(function(){
$("#addModal").modal("show");
});
// 5.给新增模态框中的保存按钮绑定单击响应函数
$("#saveRoleBtn").click(function(){
// ①获取用户在文本框中输入的角色名称
// #addModal 表示找到整个模态框
// 空格表示在后代元素中继续查找
// [name=roleName]表示匹配 name 属性等于 roleName 的元素
var roleName = $.trim($("#addModal [name=roleName]").val());
// ②发送 Ajax 请求
$.ajax({
"url": "role/save.json",
"type":"post",
"data": {
"name": roleName
},
"dataType": "json",
"success":function(response){
var result = response.result;
if(result == "SUCCESS") {
layer.msg("操作成功!");
// 将页码定位到最后一页
window.pageNum = 99999999;
window.keyword = roleName;
// 重新加载分页数据
generatePage();
}
if(result == "FAILED") {
layer.msg("操作失败!"+response.message);
}
},
"error":function(response){
layer.msg(response.status+" "+response.statusText);
}
});
// 关闭模态框
$("#addModal").modal("hide");
// 清理模态框
$("#addModal [name=roleName]").val("");
});
后端代码:
handler:
@ResponseBody
@RequestMapping("/role/save.json")
public ResultEntity<String> saveRole(Role role) {
roleService.saveRole(role);
return ResultEntity.successWithoutData();
}
service实现:
@Override
public void saveRole(Role role) {
roleMapper.insert(role);
}
3、角色更新
目标:
修改角色信息。
思路:

代码:
页面:
role-edit-modal.jsp
<%--
Created by IntelliJ IDEA.
User: 25017
Date: 2020/4/6
Time: 22:52
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<div id="addModal" class="modal fade" tabindex="-1" role="dialog">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
<h4 class="modal-title">尚筹网系统弹窗</h4>
</div>
<div class="modal-body">
<form class="form-signin" role="form">
<div class="form-group has-success has-feedback">
<input type="text" name="roleName" class="form-control" id="inputSuccess4" placeholder="请输入 角色名称" autofocus>
</div>
</form>
</div>
<div class="modal-footer">
<button id="saveRoleBtn" type="button" class="btn btn-primary"> 保 存 </button>
</div>
</div>
</div>
</div>
role-page修改:
引入修改模态框 <%@include file="/WEB-INF/role-edit-modal.jsp" %>
my-role.js修改:
原来:
var pencilBtn = "<button type='button' class='btn btn-primary btn-xs'><i class=' glyphicon glyphicon-pencil'></i></button>";
现在:
// 通过 button 标签的 id 属性(别的属性其实也可以)把 roleId 值传递到 button 按钮的单击 响应函数中,
// 在单击响应函数中使用 this.id
var pencilBtn = "<button id='"+roleId+"' type='button' class='btn btn-primary btn-xs pencilBtn'><i class=' glyphicon glyphicon-pencil'></i></button>";
js:
// 6.给页面上的“铅笔”按钮绑定单击响应函数,目的是打开模态框
// 传统的事件绑定方式只能在第一个页面有效,翻页后失效了
// $(".pencilBtn").click(function(){
// alert("aaaa...");
// });
// 使用 jQuery 对象的 on()函数可以解决上面问题
// ①首先找到所有“动态生成”的元素所附着的“静态”元素
// ②on()函数的第一个参数是事件类型
// ③on()函数的第二个参数是找到真正要绑定事件的元素的选择器
// ③on()函数的第三个参数是事件的响应函数
$("#rolePageBody").on("click",".pencilBtn",function(){
// 打开模态框
$("#editModal").modal("show");
// 获取表格中当前行中的角色名称
var roleName = $(this).parent().prev().text();
// 获取当前角色的 id
// 依据是:var pencilBtn = "<button id='"+roleId+"' ……这段代码中我们把 roleId 设置到 id 属性了
// 为了让执行更新的按钮能够获取到 roleId 的值,把它放在全局变量上
window.roleId = this.id;
// 使用 roleName 的值设置模态框中的文本框
$("#editModal [name=roleName]").val(roleName);
});
// 7.给更新模态框中的更新按钮绑定单击响应函数
$("#updateRoleBtn").click(function(){
// ①从文本框中获取新的角色名称
var roleName = $("#editModal [name=roleName]").val();
// ②发送 Ajax 请求执行更新
$.ajax({
"url":"role/update.json",
"type":"post",
"data":{
"id":window.roleId,
"name":roleName
},
"dataType":"json",
"success":function(response){
var result = response.result;
if(result == "SUCCESS") {
layer.msg("操作成功!");
// 重新加载分页数据
generatePage();
}
if(result == "FAILED") {
layer.msg("操作失败!"+response.message);
}
},
"error":function(response){
layer.msg(response.status+" "+response.statusText);
}
});
// ③关闭模态框
$("#editModal").modal("hide");
});
后端代码:
@ResponseBody
@RequestMapping("/role/update.json")
public ResultEntity<String> updateRole(Role role) {
roleService.updateRole(role);
return ResultEntity.successWithoutData();
}
service实现:
@Override
public void updateRole(Role role) {
roleMapper.updateByPrimaryKey(role);
}
4、角色删除【包括批量删除和单条删除】
目标:
前端的“单条删除”和“批量删除”在后端合并为同一套操作。合并的依据是:单条删除时 id 也放在数组中,后端完全根据 id 的数组进行删除。
思路:

代码:
页面:
role-confirm-modal.jsp
<%--
Created by IntelliJ IDEA.
User: 25017
Date: 2020/4/6
Time: 23:44
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<div id="confirmModal" class="modal fade" tabindex="-1" role="dialog">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal"
aria-label="Close">
<span aria-hidden="true">×</span>
</button>
<h4 class="modal-title">尚筹网系统弹窗</h4>
</div>
<div class="modal-body">
<h4>请确认是否要删除下列角色:</h4>
<div id="roleNameDiv" style="text-align: center;"></div>
</div>
<div class="modal-footer">
<button id="removeRoleBtn" type="button" class="btn btn-primary">确认删除</button>
</div>
</div>
</div>
</div>
role-page:
引入模态框:
<%@include file="/WEB-INF/role-confirm-modal.jsp" %>
删除按钮修改:
<button id="batchRemoveBtn" type="button" class="btn btn-danger"
style="float: right; margin-left: 10px;">
<i class=" glyphicon glyphicon-remove"></i> 删除
</button>
全选按钮修改:
<th width="30">#</th>
<th width="30"><input id="summaryBox" type="checkbox"></th>
<th>名称</th>
<th width="100">操作</th>
my-role.js:
多选时获取roleId: var checkboxTd = "<td><input class='itemBox' id='"+roleId+"' type='checkbox'></td>"; 单选时获取roleId var removeBtn = "<button id='"+roleId+"' type='button' class='btn btn-danger btn-xs removeBtn'><i class=' glyphicon glyphicon-remove'></i></button>";
js:
// 声明专门的函数显示确认模态框
function showConfirmModal(roleArray) {
// 打开模态框
$("#confirmModal").modal("show");
// 清除旧的数据
$("#roleNameDiv").empty();
// 在全局变量范围创建数组用来存放角色id
window.roleIdArray = [];
// 遍历roleArray数组
for(var i = 0; i < roleArray.length; i++) {
var role = roleArray[i];
var roleName = role.roleName;
$("#roleNameDiv").append(roleName+"<br/>");
var roleId = role.roleId;
// 调用数组对象的push()方法存入新元素
window.roleIdArray.push(roleId);
}
}
// 8.点击确认模态框中的确认删除按钮执行删除
$("#removeRoleBtn").click(function(){
// 从全局变量范围获取roleIdArray,转换为JSON字符串
var requestBody = JSON.stringify(window.roleIdArray);
$.ajax({
"url":"role/remove/by/role/id/array.json",
"type":"post",
"data":requestBody,
"contentType":"application/json;charset=UTF-8",
"dataType":"json",
"success":function(response){
var result = response.result;
if(result == "SUCCESS") {
layer.msg("操作成功!");
// 重新加载分页数据
generatePage();
}
if(result == "FAILED") {
layer.msg("操作失败!"+response.message);
}
},
"error":function(response){
layer.msg(response.status+" "+response.statusText);
}
});
// 关闭模态框
$("#confirmModal").modal("hide");
});
// 9.给单条删除按钮绑定单击响应函数
$("#rolePageBody").on("click",".removeBtn",function(){
// 从当前按钮出发获取角色名称
var roleName = $(this).parent().prev().text();
// 创建role对象存入数组
var roleArray = [{
"roleId":this.id,
"roleName":roleName
}];
// 调用专门的函数打开模态框
showConfirmModal(roleArray);
});
// 10.给总的checkbox绑定单击响应函数
$("#summaryBox").click(function(){
// ①获取当前多选框自身的状态
var currentStatus = this.checked;
// ②用当前多选框的状态设置其他多选框
$(".itemBox").prop("checked", currentStatus);
});
// 11.全选、全不选的反向操作
$("#rolePageBody").on("click",".itemBox",function(){
// 获取当前已经选中的.itemBox的数量
var checkedBoxCount = $(".itemBox:checked").length;
// 获取全部.itemBox的数量
var totalBoxCount = $(".itemBox").length;
// 使用二者的比较结果设置总的checkbox
$("#summaryBox").prop("checked", checkedBoxCount == totalBoxCount);
});
// 12.给批量删除的按钮绑定单击响应函数
$("#batchRemoveBtn").click(function(){
// 创建一个数组对象用来存放后面获取到的角色对象
var roleArray = [];
// 遍历当前选中的多选框
$(".itemBox:checked").each(function(){
// 使用this引用当前遍历得到的多选框
var roleId = this.id;
// 通过DOM操作获取角色名称
var roleName = $(this).parent().next().text();
roleArray.push({
"roleId":roleId,
"roleName":roleName
});
});
// 检查roleArray的长度是否为0
if(roleArray.length == 0) {
layer.msg("请至少选择一个执行删除");
return ;
}
// 调用专门的函数打开模态框
showConfirmModal(roleArray);
});
分页时将全选按钮默认不勾选:
$("#summaryBox").prop("checked", false);
后端:
handler:
@ResponseBody
@RequestMapping("/role/remove/by/role/id/array.json")
public ResultEntity<String> removeByRoleIdAarry(
@RequestBody List<Integer> roleIdList) {
roleService.removeRole(roleIdList);
return ResultEntity.successWithoutData();
}
service实现:
@Override
public void removeRole(List<Integer> roleIdList) {
RoleExample example = new RoleExample();
RoleExample.Criteria criteria = example.createCriteria();
//delete from t_role where id in (5,8,12)
criteria.andIdIn(roleIdList);
roleMapper.deleteByExample(example);
}
来源:https://www.cnblogs.com/lxw-all/p/12632250.html