FLEX跨域远程访问

一时失言乱红尘 2022-01-13 06:27 175阅读 0赞

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:

1.  package com.zjht.call;
2.  
3.  import java.io.BufferedInputStream;
4.  import java.io.PrintWriter;
5.  import java.net.HttpURLConnection;
6.  import java.net.SocketTimeoutException;
7.  import java.net.URL;
8.  
9.  import javax.servlet.http.HttpServletRequest;
10. import javax.servlet.http.HttpServletResponse;
11. 
12. import org.apache.log4j.Logger;
13. import org.springframework.stereotype.Controller;
14. import org.springframework.web.bind.annotation.RequestMapping;
15. import org.springframework.web.bind.annotation.RequestMethod;
16. 
17. import com.zjht.hrm.action.AttachmentDownloadAction;
18. 
19. @Controller
20. public class CrossdomainAction \{
21. private static Logger log = Logger.getLogger(AttachmentDownloadAction.class.getClass());
22. 
23. @RequestMapping(value = "crossdomain", method = \{ RequestMethod.POST, RequestMethod.GET \})
24. public void crossdomain(String url, final HttpServletRequest request, final HttpServletResponse response) throws Exception \{
25. response.setCharacterEncoding("UTF-8");
26. response.setContentType("text/xml");
27. PrintWriter out = response.getWriter();
28. try \{
29. out.println(details);
30. \} catch (Exception e) \{
31. log.error("response.sendError Exception:",e);
32. throw new Exception("数据加载失败请联系研发部:" \+ e.getMessage());
33. \}finally\{
34. out.flush();
35. out.close();
36. \}
37. 
38. \}
39. 
40. public String GetRemoteDetails(String urlStr) throws Exception \{
41. String s = "";
42. StringBuffer sb=new StringBuffer();
43. try \{
44. URL url = new URL(urlStr);
45. HttpURLConnection connection = (HttpURLConnection) url.openConnection();
46. connection.setConnectTimeout(30000);
47. connection.setReadTimeout(30000);
48. connection.connect();
49. BufferedInputStream bis = new BufferedInputStream(connection.getInputStream());
50. int c;
51. while ((c = bis.read()) != -1) \{
52. sb.append((char)c);
53. \}
54. s= new String(sb.toString().getBytes("iso8859-1"), "utf-8");
55. \}catch (SocketTimeoutException e)
56. \{
57. log.error("连接超时:",e);
58. throw new Exception("连接超时请联系研发部:" \+ e.getMessage());
59. \}catch (Exception e) \{
60. log.error("数据加载失败:",e);
61. throw new Exception("数据加载失败请联系研发部:" \+ e.getMessage());
62. \}
63. return s;
64. \}
65. 
66. \}

Flex端：

1.  <s:HTTPService id="loader" url="/ChinaExpress/crossdomain.do" resultFormat="e4x" method="GET" useProxy="false"/>
2.  
3.  loader.addEventListener(ResultEvent.RESULT,ticketInfoList);
4.  params = new URLVariables();
5.  
6.  params.url="URL"
7.  loader.send(params);

转载于:https://blog.51cto.com/jiarong/930083