struts 2 jquery.ajax() 接受数据乱码问题

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struts 2 jquery.ajax() 接受数据乱码问题5

先看java 后台的代码

 public String readPage(){
	    	Tomcat_Root = request.getSession().getServletContext().getRealPath("/");
	    	String fiePath = request.getParameter("rootpath");
	    	StringBuffer sb = new StringBuffer();
	    	File file = new File(fiePath);
	    	if(!file.exists()){
	    		System.out.println("找不到你要的文件");
	    	}
	    	try {
				BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(file)));
				while(true){
					String line = br.readLine();
					if(line!=null){
						sb.append(line+"\n");
					}else{
						break;
					}
				}
				br.close();
				PrintWriter  out = response.getWriter();
				//response.setCharacterEncoding("UTF-8");
				//response.setContentType("text/html");
				response.setContentType("text/html;charset=utf-8");
				
				System.out.println("sb:"+sb.toString());
				
				String des = new String(sb.toString().getBytes("UTF-8"),"UTF-8");
				
				System.out.println("des:"+des);
				
				out.print(des);
				out.flush();
				out.close();
			} catch (FileNotFoundException e) {
				e.printStackTrace();
			} catch (IOException e) {
				System.out.println("文件读取错误");
				e.printStackTrace();
			}
	    	return null;
	    }

这里out.print(des) 打印是

var audioMixerServer ="iamp://192.168.60.146:5052/"
var audioArr=[{
 audioClass:"????",
 list:[
	{name:"20124215341.wav",jtUrl:"diet/audio/",volume:"45",times:"-1",len:"0",info:"MU-????????.wav"},
	{name:"20124215969.wav",jtUrl:"diet/audio/",volume:"45",times:"-1",len:"0",info:"MU-????????.wav"},
	{name:"20112314142304.wav",jtUrl:"diet/audio/",volume:"60",times:"1",len:"0",info:"????.wav"},
	{name:"20112314142336.wav",jtUrl:"diet/audio/",volume:"60",times:"1",len:"0",info:"????.wav"}
]}]

但是System.out.println("des:"+des);的打印输出是：

des:var audioMixerServer ="iamp://192.168.60.146:5052/"
var audioArr=[{
 audioClass:"基本音频",
 list:[
	{name:"20124215341.wav",jtUrl:"diet/audio/",volume:"45",times:"-1",len:"0",info:"MU-饮食开头背景音乐.wav"},
	{name:"20124215969.wav",jtUrl:"diet/audio/",volume:"45",times:"-1",len:"0",info:"MU-饮食里面背景音乐.wav"},
	{name:"20112314142304.wav",jtUrl:"diet/audio/",volume:"60",times:"1",len:"0",info:"移动音效.wav"},
	{name:"20112314142336.wav",jtUrl:"diet/audio/",volume:"60",times:"1",len:"0",info:"确定音效.wav"}
]}]

页面jquery ajax js代码：

function geteditData(name){
			var path =rootPath+name;
			alert("editData_path==="+path);
			$.ajax({  
                      async: false,  
                      cache: false,  
                      type:"POST",  
                      dataType: "text",
                      contentType:"application/x-www-form-urlencoded;charset=utf-8",
                      url: "<%=basePath%>pkg_readPage?rootpath="+path, 
                      success : function(data){
						alert("get_edit_data:"+data );
						$("#txt").val(data);
                      },
					  error: function(){
                    	  alert("trsData = error")
					  	}	
                       });
				}

这里alert()处乱的当然是乱码了。

我的jsp页面是这么设置的<%@ page language="java" import="java.util.*" contentType="text/html" pageEncoding="utf-8"%>
struts.xml里面
<constant name="struts.enable.DynamicMethodInvocation" value="true" />
<constant name="struts.devMode" value="true" />
<constant name="struts.multipart.maxSize" value="104857600" />
<constant name="struts.i18n.encoding" value="utf-8"/>
还是乱码，然后写了个filter

public class MyFilter  extends HttpServlet implements Filter {

	public void doFilter(ServletRequest arg0, ServletResponse arg1,
			FilterChain arg2) throws IOException, ServletException {
		
			arg0.setCharacterEncoding("UTF-8");
			arg1.setContentType("text/html;charset=UTF-8");
			arg2.doFilter(arg0, arg1);
		
	}

	public void init(FilterConfig arg0) throws ServletException {
		// TODO Auto-generated method stub
		
	}
	
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
		}

}

web.xml 里面的配置：

  <filter>
  		<filter-name>MyFilter</filter-name>
  		<filter-class>cn.itime.webpkg.filter.MyFilter</filter-class>
  	</filter>
  <filter-mapping>
 		 <filter-name>MyFilter</filter-name>
 		 <url-pattern>/*</url-pattern>
  </filter-mapping>

居然还是乱码，崩溃啊，，，，，，