FLEX跨域远程访问

   整这个玩意，整了好久，原因：策略文件必须放在远程服务器的根目录下。像网上说的在flex的主应用中写入 Security.loadPolicyFile("http:// localhost:8080/direc/crossdomain.xml");来设置访问的路径，，   我勒个去，，完全是忽悠人的，，  整了咱一早上，，好吧，下午在官网上硬着头皮看着英文发现了一句话，原话就不写了，大概意思 :flex始终会在对方服务器上的根目录来查找主策略文件，用Security.loadPolicyFile只是用来找到从策略文件。

  好吧那就把策略文件丢在服务器的根目录上呗，，结果在强大的ESB/MULE中， 端口号又是一个大问题，，有待研究，，，结果没办法，只能折中一下，用java了·······

   废话说了一大堆，上代码：

java端:

 

package com.zjht.call;

import java.io.BufferedInputStream;
import java.io.PrintWriter;
import java.net.HttpURLConnection;
import java.net.SocketTimeoutException;
import java.net.URL;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.log4j.Logger;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

import com.zjht.hrm.action.AttachmentDownloadAction;

@Controller
public class CrossdomainAction {
    private static Logger log = Logger.getLogger(AttachmentDownloadAction.class.getClass());

    @RequestMapping(value = "crossdomain", method = { RequestMethod.POST, RequestMethod.GET })
    public void crossdomain(String url, final HttpServletRequest request, final HttpServletResponse response) throws Exception {
        response.setCharacterEncoding("UTF-8");
        response.setContentType("text/xml");
  PrintWriter out = response.getWriter();
        try {
            out.println(details);
        } catch (Exception e) {
            log.error("response.sendError Exception:",e);
            throw new Exception("数据加载失败请联系研发部:" + e.getMessage());
        }finally{
            out.flush();
            out.close();
        }

    }

    public String GetRemoteDetails(String urlStr) throws Exception {
        String s = "";
        StringBuffer sb=new StringBuffer();
        try {
            URL url = new URL(urlStr);
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
            connection.setConnectTimeout(30000);
            connection.setReadTimeout(30000);
            connection.connect();
            BufferedInputStream bis = new BufferedInputStream(connection.getInputStream());
            int c;
            while ((c = bis.read()) != -1) {
                sb.append((char)c);
            }
            s= new String(sb.toString().getBytes("iso8859-1"), "utf-8");
        }catch (SocketTimeoutException e)
        {
            log.error("连接超时:",e);
            throw new Exception("连接超时请联系研发部:" + e.getMessage());
        }catch (Exception e) {
            log.error("数据加载失败:",e);
            throw new Exception("数据加载失败请联系研发部:" + e.getMessage());
        }
        return s;
    }

}

Flex端：

 

<s:HTTPService id="loader" url="/ChinaExpress/crossdomain.do"  resultFormat="e4x"  method="GET" useProxy="false"/>

    loader.addEventListener(ResultEvent.RESULT,ticketInfoList);
                params = new URLVariables();

params.url="URL"
loader.send(params);