jQuery中jqGrid分页实现代码

YUYISHARE

2011-11-04

（1）页面代码：

代码如下：

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 
<html> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 
<title>Insert title here</title> 
<link rel="stylesheet" type="text/css" media="screen" 
href="js/themes/basic/grid.css" /> 
<script type="text/javascript" src="js/jquery.js"></script> 
<script type="text/javascript" src="js/jquery.jqGrid.js"></script> 
<script type="text/javascript"> 
jQuery(document).ready(function(){ 
jQuery("#myTab").jqGrid({ 
datatype: "json", //将这里改为使用JSON数据 
url:'DataServlet', //这是Action的请求地址 
mtype: 'POST', 
height: 250, 
width: 400, 
colNames:['编号','姓名', '电话'], 
colModel:[ 
{name:'id',index:'id', width:60, sorttype:"int"}, 
{name:'name',index:'name', width:90}, 
{name:'phone',index:'phone', width:100} 
], 
pager: 'pager', //分页工具栏 
imgpath: 'js/themes/basic/images', //图片存放路径 
rowNum:10, //每页显示记录数 
viewrecords: true, //是否显示行数 
rowList:[10,20,30], //可调整每页显示的记录数 
multiselect: false, //是否支持多选 
caption: "信息显示" 
}); 
}); 
</script> 
</head> 
<body> 
<table id="myTab" class="scroll" cellpadding="0" cellspacing="0"></table> 
<div id="pager" class="scroll"></div> 
</body> 
</html>

（2）后台的servlet，里面的数据是模拟的

代码如下：

/** 
* Servlet implementation class DataServlet 
*/ 
public class DataServlet extends HttpServlet { 
private static final long serialVersionUID = 1L; 

/** 
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse 
* response) 
*/ 
protected void doGet(HttpServletRequest request, 
HttpServletResponse response) throws ServletException, IOException { 
// TODO Auto-generated method stub 
} 

/** 
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse 
* response) 
*/ 
protected void doPost(HttpServletRequest request, 
HttpServletResponse response) throws ServletException, IOException { 
String page = request.getParameter("page"); // 取得当前页数,注意这是jqgrid自身的参数 
String rows = request.getParameter("rows"); // 取得每页显示行数，,注意这是jqgrid自身的参数 
int totalRecord = 80; // 总记录数(应根据数据库取得，在此只是模拟) 
int totalPage = totalRecord % Integer.parseInt(rows) == 0 ? totalRecord 
/ Integer.parseInt(rows) : totalRecord / Integer.parseInt(rows) 
+ 1; // 计算总页数 
try { 
int index = (Integer.parseInt(page) - 1) * Integer.parseInt(rows); // 开始记录数 
int pageSize = Integer.parseInt(rows); 
// 以下模拟构造JSON数据对象 
String json = "{total: " + totalPage + ", page: " + page 
+ ", records: " + totalRecord + ", rows: ["; 
for (int i = index; i < pageSize + index && i < totalRecord; i++) { 
json += "{cell:['ID " + i + "','NAME " + i + "','PHONE " + i 
+ "']}"; 
if (i != pageSize + index - 1 && i != totalRecord - 1) { 
json += ","; 
} 
} 
json += "]}"; 
response.getWriter().write(json); // 将JSON数据返回页面 
} catch (Exception ex) { 
} 
} 
}

目录结构：

jQuery中jqGrid分页实现代码
展现的效果：