jquery-easyUI第二篇【综合案例】
基于easyUI开发的一个综合案例模版
<%@ page language="java" pageEncoding="UTF-8"%>
<html>
<head>
<title>练习title>
<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>
<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>
<div id="layoutID" style="width:700px;height:500px" class="easyui-layout" data-options="fit:true">
<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>
<div data-options="region:'south'" style="height:100px;">
<center><font style="font-size:33px">XX公司版权所有font>center>
div>
<div data-options="region:'east',iconCls:'icon-reload'" style="width:100px;">div>
<div data-options="region:'west'" style="width:200px;">
<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;">
<a
id="btn_add"
href="#"
class="easyui-linkbutton"
data-options="iconCls:'icon-add'">增加部门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;">
<ul id="treeID" class="easyui-tree" data-options="lines:true">
<li>
<span>增加人事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>查询所有人事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>
<div data-options="region:'center'" style="padding:5px;background:#eee;">
<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);
//如果title变量是"增加部门"
if("增加部门" == title){
//查看该选项卡是否已经打开
var flag = $("#tabsID").tabs("exists",title);
//如果未打开
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(){
//收起所有的选项
$("#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);
//如果没有打开的话
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>
效果：
分页
相信我们的分页已经做得不少了，这次我们使用easyUI+Oracle+jdbc来做一个分页…【之前大都都用Mysql，这次用Oracle】
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，服务端需要哪个，就接收哪个参数
- page：需要显示的页号
- rows：需要获取多少条记录
编写emp实体
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;
}
}
编写EmpDao
使用Oracle的语法来实现分页…!
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 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 list = (List) queryRunner.query(sql, new Object[]{end, start}, new BeanListHandler(Emp.class));
return list;
}
} 编写EmpService
得到对应的分页数据，封装到分页对象中！
public class EmpService {
private EmpDao empDao = new EmpDao();
public Page getPageResult(int currentPage) throws Exception {
Page page = new Page(currentPage, empDao.getPageRecord());
List empList = empDao.getList(page.getStartIndex(), page.getLinesize() * currentPage);
page.setList(empList);
return page;
}
} 处理请求的Servlet
接收page参数，如果为空，就设置为1
把得到的分页数据封装成datagrid要的格式，返回给浏览器！
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();
}
}JSP页面显示
<%@ 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，否则获取不到数据*/
{field:'empno',title:'编号',width:100},
{field:'ename',title:'姓名',width:100},
{field:'job',title:'工作',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>
效果：
