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锁定老帖子 主题：ajax局部刷新
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发表时间：2008-07-18
/*
* Generated by MyEclipse Struts
* Template path: templates/java/JavaClass.vtl
*/
package com.dd.struts.action;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.DynaActionForm;
import com.dd.util.DBConnection;
public class QueryAction extends Action {
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) {
//struts 的动态ActionForm 在struts_config.xml 里面配置
DynaActionForm queryForm = (DynaActionForm) form;// TODO Auto-generated method stub
String name = (String)queryForm.get("name");
List list = null;
try {
//后台DAO层
list = DBConnection.getInfo(name);
} catch(Exception ex) {
ex.printStackTrace();
}
request.setAttribute("info", list);
return mapping.findForward("result");
}
}
Ajax.js 编写
var xmlHttp ;
function createXDOM() {
if(window.XMLHttpRequest) {
xmlHttp = new XMLHttpRequest;
} else if (window.ActiveXObject) {
xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
} else {
xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
}
}
function getInfoByName() {
createXDOM();
var name = document.getElementsByName("name")[0].value;
var url = "query.do";
var param = "name="+name;
xmlHttp.open("post",url,true);
xmlHttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
xmlHttp.onreadyStatechange=function(){
if(xmlHttp.readyState==4) {
//alert(xmlHttp.responseText);
result.innerHTML=xmlHttp.responseText;
} else {
result.innerHTML="请稍等...";
}
}
xmlHttp.send(param);
}
数据输入页面
<%@ page language="java" pageEncoding="GBK"%>
<%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean" %>
<%@ taglib uri="http://struts.apache.org/tags-html" prefix="html" %>
<%@ taglib uri="http://struts.apache.org/tags-logic" prefix="logic" %>
<%@ taglib uri="http://struts.apache.org/tags-tiles" prefix="tiles" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html:html lang="true">
<body>
<table border=1>
<tr>
<th>1</th>
<th>2</th>
<th>3</th>
<th>4</th>
<th>5</th>
<th>6</th>
<th>7</th>
<th>8</th>
<th>9</th>
<th>10</th>
</tr>
<logic:iterate id="i" name="info">
<tr>
<td>${i.cus_id }</td>
<td>${i.cusname }</td>
<td>${i.ctname }</td>
<td>${i.itname }</td>
<td>${i.creditname }</td>
<td>${i.elname }</td>
<td>${i.custel }</td>
<td>${i.cusemail }</td>
<td>${i.cusaddr }</td>
<td>${i.cusremark }</td>
</tr>
</logic:iterate>
</table>
</body>
</html:html>
数据显示页面 <%@ page language="java" pageEncoding="GBK"%> <%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean"%> <%@ taglib uri="http://struts.apache.org/tags-html" prefix="html"%> <script type="text/javascript" src="ajax.js"></script> <html> <head> <title>JSP for DynaActionForm form</title> </head> <body> <html:form action="query.do" method="post"> name : <html:text property="name"/><html:errors property="name"/><br/> <html:button property="btn" value="查询" onclick="getInfoByName()"></html:button> </html:form> <hr> <div id="result"></div> </body> </html> 声明：ITeye文章版权属于作者，受法律保护。没有作者书面许可不得转载。
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