<%@ page language="java" pageEncoding="UTF-8"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>練習</title> <!-- 引入css文件,不限順序 --> <link rel="stylesheet" href="${pageContext.request.contextPath}/themes/default/easyui.css" type="text/css"></link> <link rel="stylesheet" href="${pageContext.request.contextPath}/themes/icon.css" type="text/css"></link> <!-- 引入js文件,有順序限制 --> <script type="text/javascript" src="${pageContext.request.contextPath}/js/jquery.min.js"></script> <script type="text/javascript" src="${pageContext.request.contextPath}/js/jquery.easyui.min.js"></script> <script type="text/javascript" src="${pageContext.request.contextPath}/js/easyui-lang-zh_CN.js"></script> </head> <body> <!-- Layout佈局 --> <div id="layoutID" style="width:700px;height:500px" class="easyui-layout" data-options="fit:true"> <!-- 北 --> <div data-options="region:'north',border:true,iconCls:'icon-remove',collapsible:true" style="height:100px;"> <center><font style="font-size:66px">jQuery-EasyUI組件</font></center> </div> <!-- 南 --> <div data-options="region:'south'" style="height:100px;"> <center><font style="font-size:33px">XX公司版權全部</font></center> </div> <!-- 東 --> <div data-options="region:'east',iconCls:'icon-reload'" style="width:100px;"></div> <!-- 西 --> <div data-options="region:'west'" style="width:200px;"> <!-- Accordion分類 --> <div id="accordionID" class="easyui-accordion" data-options="fit:true,border:false,selected:-1" style="width:300px;height:400px;"> <div title="部門管理" data-options="iconCls:'icon-save'" style="padding:10px;"> <!-- Linkbutton按鈕 --> <a id="btn_add" href="#" class="easyui-linkbutton" data-options="iconCls:'icon-add'">增長部門</a><p> <a id="btn_find" href="#" class="easyui-linkbutton" data-options="iconCls:'icon-search'">查詢部門</a><p> <a id="btn_update" href="#" class="easyui-linkbutton" data-options="iconCls:'icon-edit'">修改部門</a><p> <a id="btn_delete" href="#" class="easyui-linkbutton" data-options="iconCls:'icon-remove'">刪除部門</a><p> </div> <div title="人事管理" data-options="iconCls:'icon-reload'" style="padding:10px;"> <!-- tree樹 --> <ul id="treeID" class="easyui-tree" data-options="lines:true"> <li> <span>增長人事</span> </li> <li> <span>查詢人事</span> <ul> <li> <span>分頁查詢人事</span> <ul> <li> <span>模糊分頁查詢人事</span> </li> <li> <span>精確分頁查詢人事</span> </li> </ul> </li> <li> <span>查詢全部人事</span> </li> </ul> </li> </ul> </div> <div title="客戶管理" data-options="iconCls:'icon-reload'" style="padding:10px;"> 客戶管理 </div> <div title="權限管理" data-options="iconCls:'icon-reload'" style="padding:10px;"> 權限管理 </div> <div title="報表管理" data-options="iconCls:'icon-print'" style="padding:10px;"> 報表管理 </div> <div title="幫助" data-options="iconCls:'icon-help'" style="padding:10px;"> 幫助 </div> </div> </div> <!-- 中 --> <div data-options="region:'center'" style="padding:5px;background:#eee;"> <!-- Tabs選項卡 --> <div id="tabsID" class="easyui-tabs" style="width:500px;height:250px;" data-options="plain:true,border:false,selected:-1,fit:true"> </div> </div> </div> <script type="text/javascript"> //定位4個按鈕 $("a").click(function(){ //獲取你所單擊的按鈕的標題 var title = $(this).text(); //去空格 title = $.trim(title); //若是title變量是"增長部門" if("增長部門" == title){ //查看該選項卡是否已經打開 var flag = $("#tabsID").tabs("exists",title); //若是未打開 if(!flag){ //打開選項卡 $("#tabsID").tabs("add",{ "title" : title, "closable" : true, "content" : "文本", "iconCls" : "icon-add" }); } }else if("查詢部門" == title){ var flag = $("#tabsID").tabs("exists",title); if(!flag){ //打開選項卡 $("#tabsID").tabs("add",{ "title" : title, "closable" : true, "content" : "文本", "iconCls" : "icon-search" }); } } }); </script> <script type="text/javascript"> $(function(){ //收起全部的選項 $("#treeID").tree("collapseAll"); }); </script> <script type="text/javascript"> $("#treeID").tree({ onClick : function(node){ //獲取點擊樹節點的文本 var title = node.text; //去空格 title = $.trim(title); //產生tab選項卡 var flag = $("#tabsID").tabs("exists",title); //若是沒有打開的話 if(!flag){ //打開選項卡 $("#tabsID").tabs("add",{ "title" : title, "closable" : true, "href" : "${pageContext.request.contextPath}/empList.jsp", "iconCls" : "icon-search" }); } } }); </script> </body> </html>
相信咱們的分頁已經作得很多了,此次咱們使用easyUI+Oracle+jdbc來作一個分頁…【以前大都都用Mysql,此次用Oracle】javascript
DateGrid會異步以POST方式向服務器傳入二個參數:page和rows二個參數,服務端須要哪一個,就接收哪一個參數css
package zhongfucheng.entity; import java.io.Serializable; import java.util.Date; /** * Created by ozc on 2017/7/17. */ public class Emp implements Serializable { private Integer empno; private String ename; private String job; private Integer mgr; private Date hiredate; private Integer sal; private Integer comm; private Integer deptno; public Emp() { } public Emp(Integer empno, String ename, String job, Integer mgr, Date hiredate, Integer sal, Integer comm, Integer deptno) { this.empno = empno; this.ename = ename; this.job = job; this.mgr = mgr; this.hiredate = hiredate; this.sal = sal; this.comm = comm; this.deptno = deptno; } public Integer getEmpno() { return empno; } public void setEmpno(Integer empno) { this.empno = empno; } public String getEname() { return ename; } public void setEname(String ename) { this.ename = ename; } public String getJob() { return job; } public void setJob(String job) { this.job = job; } public Integer getMgr() { return mgr; } public void setMgr(Integer mgr) { this.mgr = mgr; } public Date getHiredate() { return hiredate; } public void setHiredate(Date hiredate) { this.hiredate = hiredate; } public Integer getSal() { return sal; } public void setSal(Integer sal) { this.sal = sal; } public Integer getComm() { return comm; } public void setComm(Integer comm) { this.comm = comm; } public Integer getDeptno() { return deptno; } public void setDeptno(Integer deptno) { this.deptno = deptno; } }
使用Oracle的語法來實現分頁…!html
public class EmpDao { public int getPageRecord() throws SQLException { QueryRunner queryRunner = new QueryRunner(JDBCUtils.getDataSource()); String sql = "SELECT COUNT(EMPNO) FROM EMP"; String count = queryRunner.query(sql, new ScalarHandler()).toString(); return Integer.parseInt(count); } public List<Emp> getList(int start, int end) throws SQLException { QueryRunner queryRunner = new QueryRunner(JDBCUtils.getDataSource()); String sql = "SELECT *FROM (SELECT rownum rownumid,emp.* FROM emp WHERE rownum <= ?) xx WHERE xx.rownumid> ?"; List<Emp> list = (List<Emp>) queryRunner.query(sql, new Object[]{end, start}, new BeanListHandler(Emp.class)); return list; } }
獲得對應的分頁數據,封裝到分頁對象中!java
public class EmpService { private EmpDao empDao = new EmpDao(); public Page getPageResult(int currentPage) throws Exception { Page page = new Page(currentPage, empDao.getPageRecord()); List<Emp> empList = empDao.getList(page.getStartIndex(), page.getLinesize() * currentPage); page.setList(empList); return page; } }
接收page參數,若是爲空,就設置爲1node
把獲得的分頁數據封裝成datagrid要的格式,返回給瀏覽器!jquery
protected void doPost(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) throws javax.servlet.ServletException, IOException { try { //調用service EmpService empService = new EmpService(); //設置編號方式 request.setCharacterEncoding("UTF-8"); /*獲取客戶端傳遞進來的參數,easyUI使用的是page參數*/ String pageStart = request.getParameter("page"); if (pageStart == null || pageStart.length() == 0) { pageStart = "1"; } int currentPage = Integer.parseInt(pageStart); Page pageResult = empService.getPageResult(currentPage); Map map = new HashMap(); map.put("total", pageResult.getTotalRecord()); map.put("rows", pageResult.getList()); //使用第三方工具將map轉成json文本 JSONArray jsonArray = JSONArray.fromObject(map); String jsonJAVA = jsonArray.toString(); //去掉二邊的空格 jsonJAVA = jsonJAVA.substring(1,jsonJAVA.length()-1); System.out.println("jsonJAVA=" + jsonJAVA); //以字符流的方式,將json字符串輸出到客戶端 response.setContentType("text/html;charset=UTF-8"); PrintWriter pw = response.getWriter(); pw.write(jsonJAVA); pw.flush(); pw.close(); } catch (Exception e) { e.printStackTrace(); } }
<%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head> <title>dataGrid+分頁</title> <link rel="stylesheet" type="text/css" href="easyui/themes/default/easyui.css"> <link rel="stylesheet" type="text/css" href="easyui/themes/icon.css"> <script type="text/javascript" src="easyui/jquery.min.js"></script> <script type="text/javascript" src="easyui/jquery.easyui.min.js"></script> <script type="text/javascript" src="${pageContext.request.contextPath}/js/easyui-lang-zh_CN.js"></script> </head> <body> <table id="dg" style="width: 800px" ></table> <script> $('#dg').datagrid({ url:'${pageContext.request.contextPath}/getPageServlet?time'+ new Date().getTime(), columns:[[ /*這裏的field要對應JavaBean的屬性名稱,不然獲取不到數據*/ {field:'empno',title:'編號',width:100}, {field:'ename',title:'姓名',width:100}, {field:'job',title:'工做',width:100}, {field:'mgr',title:'上編',width:100}, {field:'hiredate',title:'入時',width:100}, {field:'sal',title:'月薪',width:100}, {field:'comm',title:'佣金',width:100}, {field:'deptno',title:'部編',width:100} ]], fitColumns : true, singleSelect : true, pagination : true, /*pageSize對應rows,pageNum對應page,datagrid會自動把這兩個值傳遞進去*/ pageNumber : 1, pageSize : 3, pageList : [3], fit:true }); </script> </body> </html>