feilongbaby 2015-03-31 05:56 采纳率: 50%
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求助XMLHttpRequest status为0

本人新手，学习ajax遇到个问题XMLHttpRequest请求数据时候 status=0，responseText为空，但是偶尔又能接收到值，服务器端response status200一直正常，直接连接jsp页面又能打开。

服务器端测试jsp
<%@ page contentType="text/html; charset=GB2312" import="myfirstweb1.*" %>
<%out.println(0);%>
<% testexit tt=new testexit("lqw");
out.println(0);
%>
<%out.println(0);%>
同一目录下的jsp文件正常
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">



Insert title here


welcome to Eclipse for J2EE Developer Center,欢迎！

Todayis:
<%=new java.util.Date()%>



求大神伸一把手，我快被搞疯了

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  • feilongbaby 2015-03-31 05:57
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    Insert title here /* * Returns a new XMLHttpRequest object, or false if this browser * doesn't support it */ function sndReq() { alert("biaoji1") var name=document.getElementById("name").value; var http =new XMLHttpRequest(); http.open("post", "nihao.jsp",true); http.setRequestHeader("Content-type","application/x-www-form-urlencoded"); http.send("name="+name); http.onreadystatechange = function(){ var s=http.statusText alert(s); if(http.readyState == 4&& http.status==200){ alert(http.readyState); alert(http.status); var response =http.responseText; alert(response); }}; }







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