[求助]ajax+servlet中文乱码，请您帮忙

yexin218

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1^# 大中小发表于 2007-8-17 11:58 只看该作者

[求助]ajax+servlet中文乱码，请您帮忙

用户操作界面：jsp文件

代码

<%@ page contentType="text/html;charset=GB2312" language="java" %>
<%@page pageEncoding="GB2312"%>
<head>
<META http-equiv=Content-Type content="text/html; charset=GB2312">
</head>
<script type="text/javascript" src="js/baidusongs.js" ></script>
<script type="text/javascript" src="js/http_request.js"></script>
<title>Bai Du Songs</title>
<style type="text/css">
。。
<span class="STYLE2">Name of Song(歌名):</span>
<input name=
"song_name" type="text" id="song" value="You" size="20" maxlength="20" />
</p>
<p>
<span class="STYLE2">Name of Singer(歌手):</span>
<input type="text" id="singer" name=
"singer_value" size="20" maxlength="20" />
</p>
<p>
<!--<span id="addr_song"></span><br/>
<span id="addr_word"></span>-->
<div id = "addr_song"></div>
<div id = "addr_word"></div>
</p>
<p>
<button type="button" class="STYLE2" id="songsearch">Search</button>

jsp页面的参数由js函数传送到servlet:
js代码：

代码

window.onload = function(){
document.getElementById("songsearch").onclick=function(){
var _song= document.getElementById("song");
var _singer=document.getElementById("singer");
if(_song.value){
getSong(_song.value,_singer.value);
}
};
//defualt value
//getSong("等一分钟","");
};
function getSong(song,singer){
if(song == null){
document.getElementById("song").value="";
//return ;
}else{
var url = "http://localhost:8080/baidusongs/songsearch?song="+encodeURI(song)+"&singer="+encodeURI(singer)+"&timeStamp="+ new Date().getTime();
// var url = "http://localhost:8080/baidusongs/songsearch?song="+escape(song)+"&singer="+escape(singer)+"&timeStamp="+ new Date().getTime();
httpRequest("GET",url,true,handleResponse);
}
}
....

之后由servlet接受参数然后进行处理
servlet代码如下：

代码

protected void doGet(HttpServletRequest httpServletRequest,
HttpServletResponse httpServletResponse) throws ServletException,
IOException {
httpServletResponse.setContentType("text/xml;charset=GB2312");
httpServletRequest.setCharacterEncoding("GB2312");
//httpServletResponse.setCharacterEncoding("UTF-8");
//String song = httpServletRequest.getParameter("song");
//String song= new String(httpServletRequest.getParameter("song").getBytes("ISO-8859-1"), "GB2312");
//String singer =new String(httpServletRequest.getParameter("singer").getBytes("ISO-8859-1"), "GB2312");
String song = httpServletRequest.getParameter("song");
String singer = httpServletRequest.getParameter("singer");
System.out.println("Song name:"+song +"\n singer "+singer+"\n");
String resp = null;
if (!song.equals("")) {
URL songUrl = new URL(baiduUrl+song+"$$"+singer+"$$$$");
HttpURLConnection songCon = (HttpURLConnection) songUrl
.openConnection();
songCon.setRequestMethod("GET");
songCon.setDoInput(true);
songCon.connect();
BufferedReader in = new BufferedReader(new InputStreamReader(
songCon.getInputStream()));
StringBuffer buf = new StringBuffer("");
String inputLine;
while ((ininputLine = in.readLine( )) != null) {
buf.append(inputLine); }
in.close( );
resp = buf.toString( );
System.out.println("#######################");
System.out.println(resp);
System.out.println("#######################\n");
try{
getAddress(resp);
resp="<songaddr>"+this.getSongAddr()+"</songaddr><wordaddr>"+this.getWordAddr()+"</wordaddr>";
//System.out.println("_________________"+resp+"\n");
}catch(ParserConfigurationException e){
e.printStackTrace();
}
}else{
resp="<error />";
}
//httpServletResponse.setContentType("text/xml; charset=UTF-8");
//Convey to the user agent or browser that it should
//not cache the responses
// httpServletResponse.setHeader("Cache-Control", "no-cache");
// httpServletResponse.getWriter( ).write(resp);
httpServletResponse.setContentType("text/xml; charset=GB2312");
String content = "<?xml version=\"1.0\" encoding=\"GB2312\"?>"+"<baidu><address><song_addr>"+getRealSongAddr(this.getSongAddr(),this.getSongName())+"</song_addr>"+"<word_addr>"+getRealWordAddr(this.getWordAddr())+"</word_addr></address></baidu>";
System.out.println("*******************\n");
System.out.println(content);
System.out.println("*******************\n");
httpServletResponse.getWriter( ).write(content);
}

可是总是出现乱码现象，比如：
Song name:???
singer
我所有文件的存储encoding都是采用gb2312，编译servlet也采用了javac -encoding gb2312 *.java.
在tomcatweb.xml配置如下：

代码

<?xml version="1.0" encoding="GB2312"?>
<web-app version="2.4"
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<display-name>Echo Servlet</display-name>
<description>
Bai du songs
</description>
<jsp-config>
<jsp-property-group>
<description>Special property group for JSP Configuration JSP example.</description>
<display-name>JSPConfiguration</display-name>
<url-pattern>*.jsp</url-pattern>
<el-ignored>true</el-ignored>
<page-encoding>GB2312</page-encoding>
<scripting-invalid>false</scripting-invalid>
<include-prelude></include-prelude>
<include-coda></include-coda>
</jsp-property-group>
</jsp-config>
<servlet>
<servlet-name>SongSearch</servlet-name>
<servlet-class>baidu.SongSearch</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>SongSearch</servlet-name>
<url-pattern>/songsearch</url-pattern>
</servlet-mapping>
</web-app>

可是问题还是没有得到解决！所以恳请看看。
谢谢！

[此贴子已经被作者于2007-8-17 12:05:02编辑过]

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yexin218

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2^# 大中小发表于 2007-8-17 16:41 只看该作者

问题已经解决！
String song= new String(httpServletRequest.getParameter("song").getBytes("ISO-8859-1"), "UTF8"); //String singer =new String(httpServletRequest.getParameter("singer").getBytes("ISO-8859-1"), "UTF8");

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followmephoe

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3^# 大中小发表于 2007-8-21 14:19 只看该作者

你强转或者写一个过滤器都可以解决乱码问题

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