ajax接收action的数据返回一大串的html代码的问题
发布时间：2020-12-16 01:01:38 所属栏目：百科 来源：网络整理
导读：需要在out.println("xxxx")后加入如下的代码 out.close() package com.zb.web.action;import java.io.PrintWriter;import java.util.Map;import javax.annotation.Resource;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpSer
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需要在out.println("xxxx")后加入如下的代码 out.close() package com.zb.web.action;
import java.io.PrintWriter;
import java.util.Map;
import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
import com.zb.domain.Employee;
import com.zb.service.interfac.EmployeeServiceInter;
public class LoginAction extends ActionSupport {
private String id;
private String password;
private Map session = ActionContext.getContext().getSession(); ;
private HttpServletResponse response = ServletActionContext.getResponse();
private HttpServletRequest request = ServletActionContext.getRequest();
private EmployeeServiceInter employeeService;
//定义计数器，测试是否是一个sessionfactory
private int a;
public EmployeeServiceInter getEmployeeService() {
return employeeService;
}
@Resource
public void setEmployeeService(EmployeeServiceInter employeeService) {
this.employeeService = employeeService;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String checkEmp() throws Exception {
//?????????????spring?????????????
// WebApplicationContext ctx = WebApplicationContextUtils.getWebApplicationContext(ServletActionContext.getServletContext());
//??spring?л??bean
// EmployeeServiceInter employeeServiceInter= (EmployeeServiceInter) ctx.getBean("employeeService");
//??a??????仯???????????action???????????????????????a????????????????????a????0
//???????employee????
//System.out.println("a="+(++a));
if(request.getParameter("password")!=null&&request.getParameter("id")!=null) {
id=request.getParameter("id");
password=request.getParameter("password");
}
response.setCharacterEncoding("utf-8");
PrintWriter out = response.getWriter();
System.out.println(id);
System.out.println(password);
Employee e = new Employee();
e.setId(Integer.parseInt(id));
e.setPassword(password);
e = employeeService.checkEmployee(e);
if(e!=null){
//将登陆的用户信心放到session中
session.put("loginUser",e);
if(e.getGrade()==5){
return "admin";
}else{
return "putong";
}
}else{
out.println("用户名或者密码错误");
out.close();
return INPUT;
}
/*if("1".equals(id)&&"123".equals(password)){
return SUCCESS;
}else{
this.addFieldError("flag","id?????????????????????");
return INPUT;
}*/
}
//注销用户
public String cancellationEmp(){
session.clear();
return SUCCESS;
}
}
登录界面
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@taglib prefix="s" uri="/struts-tags" %>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<title>用户登录界面</title>
<style type="text/css">
.login{
font-family: Arial;
font-size: 14px;
}
.newStyle {
opacity: 0.5;
box-shadow: 5px 5px 5px rgba(0,0.5) ;
padding:10px; width:300px; height:50px;
border: 5px solid #dedede;
-moz-border-radius: 15px;
border-radius:15px;
background: -moz-radial-gradient(30px 30px,circle farthest-corner,#58ff00 0%,rgba(222,255,0) 30%);
vertical-align: middle;
}
</style>
<script type="text/javascript" src="/myFirstSSH03/js/myjs2.js"></script>
</head>
<body topmargin="150px">
<center>
<p></p>
<form action="check_loginAction" method="post">
<fieldset id="inputs" style="width: 400; height: 150" class="newStyle"><br>
<legend>雇员登录</legend>
id：<input type="text" class="login" id="name" name="id" placeholder="请输入id" > <br><br>
密码：<input type="password" class="login" name="password" id="pwd" placeholder="请输入密码" ><div id="div1"></div><br><br>
</fieldset>
<input type="submit" value="登录">
<input type="reset" value="重置">
</form>
</center>
</body>
</html>
myjs2.js function ajaxFunction()
{
var xmlHttp;
try{
// Firefox,Opera 8.0+,Safari
xmlHttp=new XMLHttpRequest();
}catch (e){
// Internet Explorer
try{
xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
} catch (e){
try {
xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
}catch (e){
alert("您的浏览器不支持AJAX！");
return false;
}
}
}
return xmlHttp;
}
window.onload=function(){
//<th width="100px"><input type="text" id="name" name="name" onblur="demo()"/></th>
document.getElementById("pwd").onblur=function(){
var xht= ajaxFunction();
//接收从服务器传回来的信息
xht.onreadystatechange=function(){
if(xht.readyState==4&&xht.status==200){
var div1Element=document.getElementById("div1");
var data=xht.responseText;
// alert(flag.equals("wrong"));
alert(data);
div1Element.innerHTML = "<font color='red'>"+data+"</font>";
}
}
var id=document.getElementById("name").value;
var password=document.getElementById("pwd").value;
//连接服务器
xht.open("get","./check_loginAction?timestatus="+new Date().getTime()+"&id="+id+"&password="+password,true);
//发送数据
xht.send(null);
}
}
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