寧波實習記錄（八）——頁面顯示修改及ajax相關

在昨天的基礎上對頁面做出修改，使用戶名在前端顯示，根據用戶的不同權限顯示不同的操作列表。然後就是補充學習ajax相關知識

至此項目完成，完整代碼見源代碼
注意導入sql後修改數據庫配置文件，我的MySql端口是3305，一般默認是3306

一、頁面的修改

效果圖如下，zhangsan是管理員權限，lisi是普通用戶


修改aside.jsp
頭部引入

<%@taglib prefix="security" uri="http://www.springframework.org/security/tags" %>

然後在“在線”上加用戶名

<p>
   <security:authentication property="principal.username"></security:authentication>
</p>

把用戶管理包裹起來，代碼如下

<%@ page language="java" contentType="text/html; charset=UTF-8"
   pageEncoding="UTF-8" isELIgnored="false"%>
<%@taglib prefix="security" uri="http://www.springframework.org/security/tags" %>
<aside class="main-sidebar">
   <!-- sidebar: style can be found in sidebar.less -->
   <section class="sidebar">
      <!-- Sidebar user panel -->
      <div class="user-panel">
         <div class="pull-left image">
            <img src="${pageContext.request.contextPath}/img/user2-160x160.jpg"
               class="img-circle" alt="User Image">
         </div>
         <div class="pull-left info">
            <p>
               <security:authentication property="principal.username"></security:authentication>
            </p>
            <a href="#"><i class="fa fa-circle text-success"></i> 在線</a>
         </div>
      </div>

      <!-- sidebar menu: : style can be found in sidebar.less -->
      <ul class="sidebar-menu">
         <li class="header">菜單</li>
         <li id="admin-index"><a
            href="#"><i
               class="fa fa-dashboard"></i> <span>首頁</span></a></li>

         <li class="treeview"><a href="#"> <i class="fa fa-cogs"></i>
               <span>系統管理</span> <span class="pull-right-container"> <i
                  class="fa fa-angle-left pull-right"></i>
            </span>
         </a>
            <ul class="treeview-menu">
               <li id="system-setting">
                  <security:authorize access="hasRole('ADMIN')">
                  <a
                  href="${pageContext.request.contextPath}/user/findAll.do?page=1&size=5"> <i
                     class="fa fa-circle-o"></i> 用戶管理
                   </a>
                  </security:authorize>
               </li>
               <li id="system-setting"><a
                  href="#"> <i
                     class="fa fa-circle-o"></i> 角色管理
               </a></li>

            </ul>

         </li>


      </ul>
   </section>
   <!-- /.sidebar -->
</aside>

header.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
   pageEncoding="UTF-8" isELIgnored="false"%>
<%@taglib prefix="security" uri="http://www.springframework.org/security/tags" %>

<!-- 頁面頭部 -->
<header class="main-header">
   <!-- Logo -->
   <a href="all-admin-index.html" class="logo"> <!-- mini logo for sidebar mini 50x50 pixels -->
      <span class="logo-mini"><b>數據</b></span> <!-- logo for regular state and mobile devices -->
      <span class="logo-lg">中軟<b>ETC</b>用戶管理系統</span>
   </a>
   <!-- Header Navbar: style can be found in header.less -->
   <nav class="navbar navbar-static-top">
      <!-- Sidebar toggle button-->
      <a href="#" class="sidebar-toggle" data-toggle="offcanvas"
         role="button"> <span class="sr-only">Toggle navigation</span>
      </a>

      <div class="navbar-custom-menu">
         <ul class="nav navbar-nav">

            <li class="dropdown user user-menu"><a href="#"
               class="dropdown-toggle" data-toggle="dropdown"> <img
                  src="${pageContext.request.contextPath}/img/user2-160x160.jpg"
                  class="user-image" alt="User Image"> <span class="hidden-xs">
               <security:authentication property="principal.username"></security:authentication>
               </span>
            </a>
               <ul class="dropdown-menu">
                  <!-- User image -->
                  <li class="user-header"><img
                     src="${pageContext.request.contextPath}/img/user2-160x160.jpg"
                     class="img-circle" alt="User Image"></li>

                  <!-- Menu Footer-->
                  <li class="user-footer">
                     <div class="pull-left">
                        <a href="#" class="btn btn-default btn-flat">修改密碼</a>
                     </div>
                     <div class="pull-right">
                        <a href="${pageContext.request.contextPath}/logout.do"
                           class="btn btn-default btn-flat">註銷</a>
                     </div>
                  </li>
               </ul></li>

         </ul>
      </div>
   </nav>
</header>
<!-- 頁面頭部 /-->

二、ajax應用，批量刪除

導入js包，裏面有

先在user-list.jsp中寫好批量刪除的頁面和相關js函數以及ajax請求

<%@ page language="java" contentType="text/html; charset=UTF-8"
   pageEncoding="UTF-8" isELIgnored="false"%>
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<!-- 頁面meta -->
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">

<title>數據 - AdminLTE2定製版</title>
<meta name="description" content="AdminLTE2定製版">
<meta name="keywords" content="AdminLTE2定製版">

<!-- Tell the browser to be responsive to screen width -->
<meta
   content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no"
   name="viewport">

<link rel="stylesheet"
   href="${pageContext.request.contextPath}/plugins/bootstrap/css/bootstrap.min.css">
<link rel="stylesheet"
   href="${pageContext.request.contextPath}/plugins/font-awesome/css/font-awesome.min.css">
<link rel="stylesheet"
   href="${pageContext.request.contextPath}/plugins/ionicons/css/ionicons.min.css">
<link rel="stylesheet"
   href="${pageContext.request.contextPath}/plugins/iCheck/square/blue.css">
<link rel="stylesheet"
   href="${pageContext.request.contextPath}/plugins/morris/morris.css">
<link rel="stylesheet"
   href="${pageContext.request.contextPath}/plugins/jvectormap/jquery-jvectormap-1.2.2.css">
<link rel="stylesheet"
   href="${pageContext.request.contextPath}/plugins/datepicker/datepicker3.css">
<link rel="stylesheet"
   href="${pageContext.request.contextPath}/plugins/daterangepicker/daterangepicker.css">
<link rel="stylesheet"
   href="${pageContext.request.contextPath}/plugins/bootstrap-wysihtml5/bootstrap3-wysihtml5.min.css">
<link rel="stylesheet"
   href="${pageContext.request.contextPath}/plugins/datatables/dataTables.bootstrap.css">
<link rel="stylesheet"
   href="${pageContext.request.contextPath}/plugins/treeTable/jquery.treetable.css">
<link rel="stylesheet"
   href="${pageContext.request.contextPath}/plugins/treeTable/jquery.treetable.theme.default.css">
<link rel="stylesheet"
   href="${pageContext.request.contextPath}/plugins/select2/select2.css">
<link rel="stylesheet"
   href="${pageContext.request.contextPath}/plugins/colorpicker/bootstrap-colorpicker.min.css">
<link rel="stylesheet"
   href="${pageContext.request.contextPath}/plugins/bootstrap-markdown/css/bootstrap-markdown.min.css">
<link rel="stylesheet"
   href="${pageContext.request.contextPath}/plugins/adminLTE/css/AdminLTE.css">
<link rel="stylesheet"
   href="${pageContext.request.contextPath}/plugins/adminLTE/css/skins/_all-skins.min.css">
<link rel="stylesheet"
   href="${pageContext.request.contextPath}/css/style.css">
<link rel="stylesheet"
   href="${pageContext.request.contextPath}/plugins/ionslider/ion.rangeSlider.css">
<link rel="stylesheet"
   href="${pageContext.request.contextPath}/plugins/ionslider/ion.rangeSlider.skinNice.css">
<link rel="stylesheet"
   href="${pageContext.request.contextPath}/plugins/bootstrap-slider/slider.css">
   <script type="text/javascript" src="${pageContext.request.contextPath}/js/jquery-3.2.1.min.js"></script>
   <script type="text/javascript">
      function deleteAll() {
         var checkNum=$("input[name='ids']:checked").length;
         if(checkNum==0){
             alert("請至少選擇一項");
             return;
         }
         if(confirm("確定要刪除嗎？")){
             var userlist = new Array();
                $("input[name='ids']:checked").each(function () {
                    userlist.push($(this).val())

                });
         }
         $.ajax({
            type:"post",
            url:"${pageContext.request.contextPath}/user/deleteAll.do",
            data:{
                userlist:userlist.toString()
                },
            success:function () {
                    alert("刪除成功！");
                    location.reload();

                },
            error:function () {
                alert("刪除失敗！");

                }
         })
        }
   </script>
</head>

<body class="hold-transition skin-blue sidebar-mini">

   <div class="wrapper">

      <!-- 頁面頭部 -->
      <jsp:include page="header.jsp"></jsp:include>
      <!-- 頁面頭部 /-->

      <!-- 導航側欄 -->
      <jsp:include page="aside.jsp"></jsp:include>
      <!-- 導航側欄 /-->

      <!-- 內容區域 -->
      <div class="content-wrapper">

         <!-- 內容頭部 -->
         <section class="content-header">
         <h1>
            用戶管理 <small>全部用戶</small>
         </h1>
         <ol class="breadcrumb">
            <li><a href="#"><i
                  class="fa fa-dashboard"></i> 首頁</a></li>
            <li><a
               href="#">用戶管理</a></li>

            <li class="active">全部用戶</li>
         </ol>
         </section>
         <!-- 內容頭部 /-->

            <!-- 正文區域 -->
            <section class="content"> <!-- .box-body -->
            <div class="box box-primary">
               <div class="box-header with-border">
                  <h3 class="box-title">列表</h3>
               </div>

               <div class="box-body">

                  <!-- 數據表格 -->
                  <div class="table-box">

                     <!--工具欄-->
                     <div class="pull-left">
                        <div class="form-group form-inline">
                           <div class="btn-group">
                              <button type="button" class="btn btn-default" title="新建"
                                    onclick="location.href='${pageContext.request.contextPath}/pages/user-add.jsp'" >
                                 <i class="fa fa-file-o"></i> 新建
                              </button>
                              
                              <button type="button" class="btn btn-default" title="刷新" onclick="deleteAll()">
                                 <i class="fa fa-refresh"></i> 刪除
                              </button>
                           </div>
                        </div>
                     </div>
                     <form action="#"
                          method="post">
                        <div class="col-md-4 data1">
                           <input type="text" class="form-control" name="name"
                                 placeholder="cname" value="">
                        </div>
                        <button type="submit" class="btn bg-maroon">搜索</button>
                     </form>
                     <!--工具欄/-->

                     <!--數據列表-->
                     <table id="dataList"
                        class="table table-bordered table-striped table-hover dataTable">
                        <thead>
                           <tr>
                              <th class="" style="padding-right: 0px"><input
                                 id="selall" type="checkbox" class="icheckbox_square-blue">
                              </th>
                              <th class="sorting_asc">ID</th>
                              <th class="sorting_desc">用戶名</th>
                              <th class="sorting_asc sorting_asc_disabled">密碼</th>
                              <th class="text-center">操作</th>
                           </tr>
                        </thead>
                        <tbody>
                            <c:forEach var="user" items="${pageInfos.list}">
                              <tr>
                                 <td><input name="ids" type="checkbox" value="${user.id}"></td>
                                 <td>${user.id}</td>
                                 <td>${user.name}</td>
                                 <td>${user.password}</td>
                                 <td class="text-center">
                                    <a href="${pageContext.request.contextPath}/user/toUpdate.do?id=${user.id}" class="btn bg-olive btn-xs">更新</a>
                                    <a href="${pageContext.request.contextPath}/user/delete.do?id=${user.id}" class="btn bg-olive btn-xs">刪除</a>
                                    <a href="#" class="btn bg-olive btn-xs">添加角色</a>
                                 </td>
                              </tr>
                           </c:forEach>
                        </tbody>
                        <!--
                            <tfoot>
                            <tr>
                            <th>Rendering engine</th>
                            <th>Browser</th>
                            <th>Platform(s)</th>
                            <th>Engine version</th>
                            <th>CSS grade</th>
                            </tr>
                            </tfoot>-->
                     </table>
                     <!--數據列表/-->

                  </div>
                  <!-- 數據表格 /-->

               </div>
               <!-- /.box-body -->
                  <div class="box-tools pull-right">
                     <ul class="pagination">
                        <li><a href="${pageContext.request.contextPath}/user/findAll.do?page=1&size=5" aria-label="Previous">首頁</a></li>
                        <li><a href="${pageContext.request.contextPath}/user/findAll.do?page=${pageInfos.pageNum-1}&size=5">上一頁</a></li>
                        <c:forEach begin="1" end="${pageInfos.pages}" var="pageNum">
                           <li><a href="${pageContext.request.contextPath}/user/findAll.do?page=${pageNum}&size=5">${pageNum}</a></li>
                        </c:forEach>
                        <li><a href="${pageContext.request.contextPath}/user/findAll.do?page=${pageInfos.pageNum+1}&size=5">下一頁</a></li>
                        <li><a href="${pageContext.request.contextPath}/user/findAll.do?page=${pageInfos.pages}&size=5" aria-label="Next">尾頁</a></li>
                     </ul>
                  </div>

               </div>
               <!-- /.box-footer-->

            <!--</div>-->

            </section>
            <!-- 正文區域 /-->

         </div>
         <!-- @@close -->
         <!-- 內容區域 /-->

         <!-- 底部導航 -->
         <footer class="main-footer">
         <div class="pull-right hidden-xs">
            <b>Version</b> 1.0.8
         </div>
         <strong>Copyright &copy; 2014-2017 <a
            href="http://www.itcast.cn">研究院研發部</a>.
         </strong> All rights reserved. </footer>
         <!-- 底部導航 /-->

      </div>

      <script src="../plugins/jQuery/jquery-2.2.3.min.js"></script>
      <script src="../plugins/jQueryUI/jquery-ui.min.js"></script>
      <script>
         $.widget.bridge('uibutton', $.ui.button);
      </script>
      <script src="../plugins/bootstrap/js/bootstrap.min.js"></script>
      <script src="../plugins/raphael/raphael-min.js"></script>
      <script src="../plugins/morris/morris.min.js"></script>
      <script src="../plugins/sparkline/jquery.sparkline.min.js"></script>
      <script src="../plugins/jvectormap/jquery-jvectormap-1.2.2.min.js"></script>
      <script src="../plugins/jvectormap/jquery-jvectormap-world-mill-en.js"></script>
      <script src="../plugins/knob/jquery.knob.js"></script>
      <script src="../plugins/daterangepicker/moment.min.js"></script>
      <script src="../plugins/daterangepicker/daterangepicker.js"></script>
      <script src="../plugins/daterangepicker/daterangepicker.zh-CN.js"></script>
      <script src="../plugins/datepicker/bootstrap-datepicker.js"></script>
      <script
         src="../plugins/datepicker/locales/bootstrap-datepicker.zh-CN.js"></script>
      <script
         src="../plugins/bootstrap-wysihtml5/bootstrap3-wysihtml5.all.min.js"></script>
      <script src="../plugins/slimScroll/jquery.slimscroll.min.js"></script>
      <script src="../plugins/fastclick/fastclick.js"></script>
      <script src="../plugins/iCheck/icheck.min.js"></script>
      <script src="../plugins/adminLTE/js/app.min.js"></script>
      <script src="../plugins/treeTable/jquery.treetable.js"></script>
      <script src="../plugins/select2/select2.full.min.js"></script>
      <script src="../plugins/colorpicker/bootstrap-colorpicker.min.js"></script>
      <script
         src="../plugins/bootstrap-wysihtml5/bootstrap-wysihtml5.zh-CN.js"></script>
      <script src="../plugins/bootstrap-markdown/js/bootstrap-markdown.js"></script>
      <script
         src="../plugins/bootstrap-markdown/locale/bootstrap-markdown.zh.js"></script>
      <script src="../plugins/bootstrap-markdown/js/markdown.js"></script>
      <script src="../plugins/bootstrap-markdown/js/to-markdown.js"></script>
      <script src="../plugins/ckeditor/ckeditor.js"></script>
      <script src="../plugins/input-mask/jquery.inputmask.js"></script>
      <script
         src="../plugins/input-mask/jquery.inputmask.date.extensions.js"></script>
      <script src="../plugins/input-mask/jquery.inputmask.extensions.js"></script>
      <script src="../plugins/datatables/jquery.dataTables.min.js"></script>
      <script src="../plugins/datatables/dataTables.bootstrap.min.js"></script>
      <script src="../plugins/chartjs/Chart.min.js"></script>
      <script src="../plugins/flot/jquery.flot.min.js"></script>
      <script src="../plugins/flot/jquery.flot.resize.min.js"></script>
      <script src="../plugins/flot/jquery.flot.pie.min.js"></script>
      <script src="../plugins/flot/jquery.flot.categories.min.js"></script>
      <script src="../plugins/ionslider/ion.rangeSlider.min.js"></script>
      <script src="../plugins/bootstrap-slider/bootstrap-slider.js"></script>
      <script>
         $(document).ready(function() {
            // 選擇框
            $(".select2").select2();

            // WYSIHTML5編輯器
            $(".textarea").wysihtml5({
               locale : 'zh-CN'
            });
         });

         // 設置激活菜單
         function setSidebarActive(tagUri) {
            var liObj = $("#" + tagUri);
            if (liObj.length > 0) {
               liObj.parent().parent().addClass("active");
               liObj.addClass("active");
            }
         }

         $(document)
               .ready(
                     function() {

                        // 激活導航位置
                        setSidebarActive("admin-datalist");

                        // 列表按鈕 
                        $("#dataList td input[type='checkbox']")
                              .iCheck(
                                    {
                                       checkboxClass : 'icheckbox_square-blue',
                                       increaseArea : '20%'
                                    });
                        // 全選操作 
                        $("#selall")
                              .click(
                                    function() {
                                       var clicks = $(this).is(
                                             ':checked');
                                       if (!clicks) {
                                          $(
                                                "#dataList td input[type='checkbox']")
                                                .iCheck(
                                                      "uncheck");
                                       } else {
                                          $(
                                                "#dataList td input[type='checkbox']")
                                                .iCheck("check");
                                       }
                                       $(this).data("clicks",
                                             !clicks);
                                    });
                     });
      </script>
</body>

</html>

在IUserInfoDao中定義deleteAll方法

void deleteAll(List list);

在UserMapper.xml實現方法

<delete id="deleteAll" parameterType="list">
    delete from userinfo where id in
    <foreach collection="list" item="id" open="("  close=")"  separator=",">
        #{id}
    </foreach>

</delete>

在IUserInfoService中定義方法

void deleteAll(List list);

在UserInfoService中實現

@Override
public void deleteAll(List list) {
    userInfoDao.deleteAll(list);
}

在UserInfoController中控制

其中一定要記得加上@ResponseBody以保證返回的是json格式，否則前端判斷的時候會認爲刪除失敗滴

@RequestMapping("deleteAll.do")
@ResponseBody
public String deleteAll(String userlist){
    String[] strs=userlist.split(",");
    List<Integer> ids=new ArrayList<>();
    for(int i=0;i<strs.length;i++){
        ids.add(Integer.parseInt(strs[i]));
    }
    userInfoService.deleteAll(ids);
    return "";
}

到此爲止實現了所有功能啦