《struts2+ajax无刷新页面验证》.doc
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Struts2+ajax无刷新页面验证信息
代码结构
效果图
jar包大家自己导入吧，success页面随便写都可以。
下面是代码部分：
UserAction
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionSupport;
public class UserAction extends ActionSupport{
public String msgStr;
public String name;
public void check() throws IOException
{
int responseContext=1;
System.out.println(responseContext);
HttpServletResponse response=ServletActionContext.getResponse();
response.setContentType(text/html);
PrintWriter out = response.getWriter();
out.println(responseContext);
out.flush();
out.close();
}
public String add(){
return SUCCESS;
}
public String getInfo() {
return msgStr;
}
public void setInfo(String info) {
this.msgStr = info;
}
public String getName() {
return name;
}
public void setName(String name) {
= name;
}
}
Struts.xml
?xml version=1.0 encoding=UTF-8 ?
!DOCTYPE struts PUBLIC
-//Apache Software Foundation//DTD Struts Configuration 2.0//EN
/dtds/struts-2.0.dtd
struts
constant name=struts.enable.DynamicMethodInvocation value=false /
constant name=struts.devMode value=true /
package name=default namespace=/ extends=struts-default
action name=user* class=struts2.action.UserAction method={1}
result/success.jsp/result
/action
/package
/struts
Register.js
//定义一个变量用于存放XMLHttpRequest对象
var xmlHttp;
//该函数用于创建一个XMLHttpRequest对象
function createXMLHttpRequest() {
if (window.ActiveXObject) {
xmlHttp = new ActiveXObject(Microsoft.XMLHTTP);
}
else if (window.XMLHttpRequest) {
xmlHttp = new XMLHttpRequest();
}
}
//这是一个启动AJAX异步通信的方法
function checkname()
{
var a=1;
var b=0;
var name = document.getElementById(name).value;
if (name == ){//如果尚未输入注册名
document.getElementById(namets).innerHTML=*用户名必填（最长16位）;
document.getElementById(namets).style.cssText=font-size:11px;color:re
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