本笔记大多来源于尚硅谷【封捷老师讲的尚筹网项目】
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尚硅谷尚筹网项目视频教程
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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