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[Java教程]EasyUI左边树菜单和datagrid分页


//这个页面是Home.html
1 <!DOCTYPE html> 2 <html> 3 <head> 4 5 6 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 7 <meta charset="utf-8"> 8 <meta http-equiv="X-UA-Compatible" content="IE=edge"> 9 <meta name="viewport" content="width=device-width,initial-scale=1"> 10 <link rel="stylesheet" href="EasyUI-1.4.2/themes/default/easyui.css" type="text/css"></link> 11 <link rel="stylesheet" href="EasyUI-1.4.2/themes/icon.css" type="text/css"></link> 12 13 <title>Home.html</title> 14 15 </head> 16 17 <body class="easyui-layout" > 18 <!-- 正上方panel --> 19 <div data-options="region:'north',title:'顶部',split:true" style="height:100px;padding: 10px;"></div> 20 <!-- 正左方 --> 21 <div data-options="region:'west',title:'菜单栏',split:true" style="width:280px;padding1:1px;overflow:hidden;"> 22 23 <div class="easyui-accordion" style="position: absolute; top: 27px; left: 0px; right: 0px; bottom: 0px;"> 24 25 <div title="博文管理" selected="true" iconcls="icon-save" style="overflow: auto; padding: 10px;"> 26 <ul id="LeftTree" class="easyui-tree"></ul> 27 28 </div> 29 <div title="新闻管理" iconcls="icon-reload" style="padding: 10px;"> 30 <ul class="easyui-tree" id="LeftTree"></ul> 31 </div> 32 <div title="资源管理" style="padding: 10px;"> 33 content3 34 </div> 35 </div> 36 </div> 37 <!-- 正中间 --> 38 <div data-options="region:'center',title:'功能区'" style="padding:5px;background:#eee;"> 39 <div class="easyui-tabs" id="Tabs" fit="true" border="false"> 40 <div title="欢迎页" style="padding:20px;overflow:hidden;"> 41 <div style="margin-top:20px;"> 42 <h3>你好,欢迎来到权限管理系统</h3> 43 </div> 44 </div> 45 </div> 46 </div> 47 <!-- 正右方 --> 48 <div data-options="region:'east',iconCls:'icon-reload',title:'右边',split:true" style="width:280px;"></div> 49 <!-- 正下方panel --> 50 <div data-options="region:'south',title:'底部 ',split:true" style="height:100px;"align="center"></div> 51 52 </body> 53 54 <script type="text/javascript" src="EasyUI-1.4.2/jquery.min.js"></script> 55 <script type="text/javascript" src="EasyUI-1.4.2/jquery.easyui.min.js"></script> 56 <script type="text/javascript" src="EasyUI-1.4.2/locale/easyui-lang-zh_CN.js"></script> 57 <script type="text/javascript"> 58 59 /** 60 * 创建新选项卡 61 * @param title 选项卡标题 62 * @param url 选项卡远程调用路径 63 */ 64 function AddTab(title, url) { 65 if($("#Tabs").tabs("exists",title)){ 66 $("#Tabs").tabs("select",title); 67 }else{ 68 CreateFrame(url); 69 $("#Tabs").tabs("add",{ 70 title:title, 71 content:CreateFrame(url), 72 closable:true, 73 cache : false 74 }); 75 } 76 77 } 78 79 80 81 function CreateFrame(url){ 82 var content="<iframe src='"+url+"' width='100%' height='100%' frameborder='0' scrolling='auto' ></iframe>"; 83 return content; 84 } 85 86 87 //动态创建树菜单 88 $(function(){ 89 $("#LeftTree").tree({ 90 91 data:[{ 92 "id":"1", 93 "text":"文件", 94 "state":"closed", 95 //创建子节点 96 "children":[{ 97 "id":"1.1", 98 "text":"用户管理", 99 "state":"closed",100 "children":[{101 "id":"1.1.1", 102 "text":"PhotoShop",103 "url":"http://www.hao123.com",104 /* "checked":true */105 },{ 106 "id": "1.1.2", 107 "text":"Sub Bookds", 108 "state":"closed",109 //创建子孙节点 110 "children":[{111 "id":"1.1.2_1",112 "text":"HTML5",113 "url":"http://www.baidu.com"114 /* "checked":true */115 },{ 116 "id": "1.1.2_2", 117 "text":"CSS3", 118 "url":"http://www.qq.com"119 }] 120 }] 121 /* "checked":true, */ 122 },{123 "id":"1.2",124 "text":"微博审核", 125 "state":"closed", 126 "attributes":{127 "url":"/demo/book/abc", 128 "price":100 129 }, 130 "children":[{131 "id":"1.2.1", 132 "text":"PhotoShop", 133 /* "checked":true */134 },{ 135 "id":"1.2.2",136 "text":"Sub Bookds", 137 "state":"closed",138 //创建子孙节点 139 "children":[{140 "id":"1.2.2_1", 141 "text":"PhotoShop", 142 /* "checked":true */143 },{ 144 "id":"1.2.2_2", 145 "text":"Sub Bookds", 146 }]147 }] 148 }]// END children 149 },{ //根节点150 "id":"2",151 "text":"Languages", 152 "state":"closed", 153 "children":[{154 "id":"2.1",155 "text":"Java"156 },{157 "id":"2.2",158 "text":"C#" 159 }] 160 }],161 onClick: function(node){162 //判断点击的节点是否是子节点是子节点就添加tab,否则就return打开这个节点163 var Nodes=$(this).tree("isLeaf",node.target);164 if(Nodes==false){165 return;166 }else{167 AddTab(node.text, node.url);168 }169 }170 171 });172 173 174 });175 </script>176 </html>

//这里是Content.html页面 因为center只执行body里面的内容 所以我这个页面只写了body,JS也要放在body里面否则是不执行的,我刚才说了 只执行body里面的内容

 1  <body> 2  <div class="easyui-tabs" id="Tab" fit="true" border="false"> 3      <div title="欢迎页" style="overflow:hidden;">   4         <!-- <div >  5           <h3>你好,欢迎来到权限管理系统</h3>  6         </div> -->  7    8         <table id="dg"></table> 9      </div> 10  </div>11  12  <script type="text/javascript">13    $(function(){14      $("#dg").datagrid({15        /* title:"用户管理", */ //可要可不要16        url: "List.action",17        method: "POST",18        singleSelect:true,//如果为true,则只允许选择一行。19        ctrlSelect:true, //在启用多行选择的时候允许使用Ctrl键+鼠标点击的方式进行多选操作。20        fitColumns:true, //真正的自动展开/收缩列的大小,以适应网格的宽度,防止水平滚动。21        striped:true,  //是否显示斑马线效果22        fit:true,23        /* loadMsg:"Processing, please wait …", */ //在从远程站点加载数据的时候显示提示消息。24        rownumbers: true, //如果设置为true则会添加一列来显示行号。25        pagination: true, //如果为true,则在DataGrid控件底部显示分页工具栏。26        pageSize: 10, //在设置分页属性的时候初始化页面数据条数。27        pageList: [10, 20, 50], //在设置分页属性的时候 初始化页面数据显示条数选择列表28        toolbar:[{29          text:"增加",30          iconCls:"icon-add",31          handler:function(){32          }33        },"-",{34          text:"删除",35          iconCls:"icon-remove",36          handler:function(){37          }38        },"-",{39          text:"修改",40          iconCls:"icon-edit",41          handler:function(){42          43          }44        },"-",{45          text:"查询",46          iconCls:"icon-search",47          handler:function(){48          49          }50        } ],51        52        53        54        columns:[[55          //这里的field对应的是后台的字段属性56          {field:"id",title:"编号",width:100},57          {field:"userName",title:"用户名",width:100},58          {field:"password",title:"密码",width:100},59          {field:"email",title:"Email",width:100},60          {field:"mobile",title:"电话",width:100},61        ]]62      });63    });64  </script>65  </body>

//后台分页JavaBean

 1 public class Page<T> { 2     private Integer pageIndex; // 当前页码 3     private Integer pageSize; // 每页的数据量 4     private Integer pageCount; // 总页码 5      6     /*private Integer page; // 当前页码 7     private Integer rows; // 每页的数据量 8     private Integer total; // 总页码 9 */    private Integer count; // count统计(总数据量 或 其他)10     private double sum;  // sum统计11     private List<T> list;12     13     // 构造方法14     public Page(int pageIndex, int pageSize){15       this.pageIndex = pageIndex;16       this.pageSize = pageSize;17     }18     19     public Integer getPageIndex() {20       return pageIndex;21     }22     public void setPageIndex(Integer pageIndex) {23       this.pageIndex = pageIndex;24     }25     public Integer getPageSize() {26       return pageSize;27     }28     public void setPageSize(Integer pageSize) {29       this.pageSize = pageSize;30     }31     public Integer getPageCount() {32       return pageCount;33     }34     public void setPageCount(Integer pageCount) {35       this.pageCount = pageCount;36     }37     public Integer getCount() {38       return count;39     }40 41   public void setCount(Integer count) {42     this.count = count;43 44     if (this.pageSize != 0) {45       // 顺带将总页码给赋值了46       this.pageCount = this.count % this.pageSize == 0 ? this.count47           / this.pageSize : this.count / this.pageSize + 1;48     }49   }50     public double getSum() {51       return sum;52     }53     public void setSum(double sum) {54       this.sum = sum;55     }56     public List<T> getList() {57       return list;58     }59     public void setList(List<T> list) {60       this.list = list;61     }62     63     64 }

//BaseDao

 1   public List FindList(final String bhql,int pageIndex,int pageSize) { 2     final int limit = pageSize; 3  4     final int start = (pageIndex - 1) * limit; 5  6     /*final String bhql = hql;*/ 7  8     List<Object> list = null; 9 10     list = this.getHibernateTemplate().executeFind(new HibernateCallback() {11 12       public Object doInHibernate(Session session)13           throws HibernateException, SQLException {14         List result = session.createQuery(bhql).setFirstResult(start)15             .setMaxResults(limit).list();16         /*if(session!=null){17           session.close();18         }*/19         return result;20       }21 22     });23     return list;24   }

//DaoImpl

 1 public class UsersDaoImpl extends BaseDao implements UsersDao { 2  3   public Page<Users> FindList(Users user, Integer pageIndex, Integer pageSize) { 4     String Ahql="From Users where 1=1"; 5      6     List<Users> pageList=super.FindList(Ahql, pageIndex, pageSize); 7      8     String Bhql="Select count(*) From Users"; //这句话可不要 直接调用下面的方法 9     10     Long s=(Long) super.getCount(Bhql);11     int count=s.intValue();12     13     Page<Users> page=new Page<Users>(pageIndex, pageSize);14     /*page.setPageIndex(pageIndex);15     page.setPageSize(pageSize);*/16     page.setList(pageList);17     page.setCount(count);18     return page;19   }20 21   public Integer getObject() {22     String hql="Select count(*) From Users";23     Long s=(Long) super.getCount(hql);24     return s.intValue();25   }26   27 28 }

//Action

 1 public class UsersAction extends ActionSupport { 2  3   /** 4    *  5   */ 6   private static final long serialVersionUID = 1L; 7    8   private int page; 9   private int rows;10 11   public Users getUser() {12     return user;13   }14 15   public void setUser(Users user) {16     this.user = user;17   }18 19 20   public Page<Users> getUserList() {21     return userList;22   }23 24   public void setUserList(Page<Users> userList) {25     this.userList = userList;26   }27 28   private Users user;29   private UsersBiz userBiz;30   public UsersBiz getUserBiz() {31     return userBiz;32   }33 34   public void setUserBiz(UsersBiz userBiz) {35     this.userBiz = userBiz;36   }37 38   private Page<Users> userList;39   40   41   public void getList() throws IOException {42     ServletActionContext.getResponse().setContentType(43         "text/json;charset=utf-8");44     Users user=(Users) ActionContext.getContext().getSession().get("users");45     Page<Users> pageList= userBiz.FindList(user, page,rows);46     JSONObject json = new JSONObject();47     json.put("rows", pageList.getList());48     json.put("total", pageList.getCount());49     ServletActionContext.getResponse().getWriter().print(json);50 51   }52 53   public int getPage() {54     return page;55   }56 57   public void setPage(int page) {58     this.page = page;59   }60 61   public int getRows() {62     return rows;63   }64 65   public void setRows(int rows) {66     this.rows = rows;67   }68   69 }

好累啊,看在我这么无私奉献的份上,就高抬贵手顶一顶,最怕高抬臭脚来踩了。。。^v^