tags: web前端库javascript
<%@ page language="java" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>练习</title>
<!-- 引入css文件,不限顺序 -->
<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,有顺序限制 -->
<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布局 -->
<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组件</font></center>
</div>
<!-- 南 -->
<div data-options="region:'south'" style="height:100px;">
<center><font style="font-size:33px">XX公司版权全部</font></center>
</div>
<!-- 东 -->
<div data-options="region:'east',iconCls:'icon-reload'" style="width:100px;"></div>
<!-- 西 -->
<div data-options="region:'west'" style="width:200px;">
<!-- Accordion分类 -->
<div id="accordionID" class="easyui-accordion" data-options="fit:true,border:false,selected:-1" style="width:300px;height:400px;">
<div title="部门管理" data-options="iconCls:'icon-save'" style="padding:10px;">
<!-- Linkbutton按钮 -->
<a id="btn_add" href="#" class="easyui-linkbutton" data-options="iconCls:'icon-add'">增长部门</a><p>
<a id="btn_find" href="#" class="easyui-linkbutton" data-options="iconCls:'icon-search'">查询部门</a><p>
<a id="btn_update" href="#" class="easyui-linkbutton" data-options="iconCls:'icon-edit'">修改部门</a><p>
<a id="btn_delete" href="#" class="easyui-linkbutton" data-options="iconCls:'icon-remove'">删除部门</a><p>
</div>
<div title="人事管理" data-options="iconCls:'icon-reload'" style="padding:10px;">
<!-- tree树 -->
<ul id="treeID" class="easyui-tree" data-options="lines:true">
<li>
<span>增长人事</span>
</li>
<li>
<span>查询人事</span>
<ul>
<li>
<span>分页查询人事</span>
<ul>
<li>
<span>模糊分页查询人事</span>
</li>
<li>
<span>精确分页查询人事</span>
</li>
</ul>
</li>
<li>
<span>查询全部人事</span>
</li>
</ul>
</li>
</ul>
</div>
<div title="客户管理" data-options="iconCls:'icon-reload'" style="padding:10px;">
客户管理
</div>
<div title="权限管理" data-options="iconCls:'icon-reload'" style="padding:10px;">
权限管理
</div>
<div title="报表管理" data-options="iconCls:'icon-print'" style="padding:10px;">
报表管理
</div>
<div title="帮助" data-options="iconCls:'icon-help'" style="padding:10px;">
帮助
</div>
</div>
</div>
<!-- 中 -->
<div data-options="region:'center'" style="padding:5px;background:#eee;">
<!-- Tabs选项卡 -->
<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个按钮 $("a").click(function(){ //获取你所单击的按钮的标题 var title = $(this).text(); //去空格 title = $.trim(title); //若是title变量是"增长部门" if("增长部门" == title){ //查看该选项卡是否已经打开 var flag = $("#tabsID").tabs("exists",title); //若是未打开 if(!flag){ //打开选项卡 $("#tabsID").tabs("add",{ "title" : title, "closable" : true, "content" : "文本", "iconCls" : "icon-add" }); } }else if("查询部门" == title){ var flag = $("#tabsID").tabs("exists",title); if(!flag){ //打开选项卡 $("#tabsID").tabs("add",{ "title" : title, "closable" : true, "content" : "文本", "iconCls" : "icon-search" }); } } }); </script>
<script type="text/javascript"> $(function(){ //收起全部的选项 $("#treeID").tree("collapseAll"); }); </script>
<script type="text/javascript"> $("#treeID").tree({ onClick : function(node){ //获取点击树节点的文本 var title = node.text; //去空格 title = $.trim(title); //产生tab选项卡 var flag = $("#tabsID").tabs("exists",title); //若是没有打开的话 if(!flag){ //打开选项卡 $("#tabsID").tabs("add",{ "title" : title, "closable" : true, "href" : "${pageContext.request.contextPath}/empList.jsp", "iconCls" : "icon-search" }); } } }); </script>
</body>
</html>
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相信咱们的分页已经作得很多了,此次咱们使用easyUI+Oracle+jdbc来作一个分页...【以前大都都用Mysql,此次用Oracle】css
DateGrid会异步以POST方式向服务器传入二个参数**:page和rows二个参数,服务端须要哪一个,就接收哪一个参数**html
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;
}
}
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使用Oracle的语法来实现分页...!前端
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;
}
}
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获得对应的分页数据,封装到分页对象中!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;
}
}
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接收page参数,若是为空,就设置为1node
把获得的分页数据封装成datagrid要的格式,返回给浏览器!jquery
protected void doPost(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) throws javax.servlet.ServletException, IOException {
try {
//调用service
EmpService empService = new EmpService();
//设置编号方式
request.setCharacterEncoding("UTF-8");
/*获取客户端传递进来的参数,easyUI使用的是page参数*/
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());
//使用第三方工具将map转成json文本
JSONArray jsonArray = JSONArray.fromObject(map);
String jsonJAVA = jsonArray.toString();
//去掉二边的空格
jsonJAVA = jsonJAVA.substring(1,jsonJAVA.length()-1);
System.out.println("jsonJAVA=" + jsonJAVA);
//以字符流的方式,将json字符串输出到客户端
response.setContentType("text/html;charset=UTF-8");
PrintWriter pw = response.getWriter();
pw.write(jsonJAVA);
pw.flush();
pw.close();
} catch (Exception e) {
e.printStackTrace();
}
}
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<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>dataGrid+分页</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:[[ /*这里的field要对应JavaBean的属性名称,不然获取不到数据*/ {field:'empno',title:'编号',width:100}, {field:'ename',title:'姓名',width:100}, {field:'job',title:'工做',width:100}, {field:'mgr',title:'上编',width:100}, {field:'hiredate',title:'入时',width:100}, {field:'sal',title:'月薪',width:100}, {field:'comm',title:'佣金',width:100}, {field:'deptno',title:'部编',width:100} ]], fitColumns : true, singleSelect : true, pagination : true, /*pageSize对应rows,pageNum对应page,datagrid会自动把这两个值传递进去*/ pageNumber : 1, pageSize : 3, pageList : [3], fit:true }); </script>
</body>
</html>
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