Invalid redirect location: http://wapp.baidu.com/f?kw=???????

[nonopo12345]

Hi，i'm using httpclient to connect a url. The problem is that i accept a error 
redirect location ,for example http://wapp.baidu.com/f?kw=???????? , when to 
visit the url.
 
the url to visit 
is:http://gate.baidu.com/tc?m=2&w=0_5_%E5%93%80%E9%B8%A3&t=wap&ssid=0&from=0&bd_page_type=0&p=b43ed516d9c21fff57ee96685c52&order=2&vit=osres&uid=wap_1237916098_46&src=http%3A%2F%2Fpost%2Ebaidu%2Ecom%2Ff%3Fkw%3D%B9%C2%D1%E3%B0%A7%C3%F9
 
why there appeared some characters like "???????? "? The correct redirect 
laoction should be http://wapp.baidu.com/f?kw=%B9%C2%D1%E3%B0%A7%C3%F9.
 
thd exception is:
org.apache.commons.httpclient.InvalidRedirectLocationException: Invalid 
redirect location: http://wapp.baidu.com/f?kw=????????
at 
org.apache.commons.httpclient.HttpMethodDirector.processRedirectResponse(HttpMethodDirector.java:619)
 
at 
org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:179)
 
at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:397) 
at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:323) 
at cn.rjb.app.test.TestClickA.getSourceCode(TestClickA.java:28) 
at cn.rjb.app.test.TestClickA.main(TestClickA.java:15) 
Caused by: org.apache.commons.httpclient.URIException: Invalid query 
at org.apache.commons.httpclient.URI.parseUriReference(URI.java:2049) 
at org.apache.commons.httpclient.URI. <init>(URI.java:147) 
at 
org.apache.commons.httpclient.HttpMethodDirector.processRedirectResponse(HttpMethodDirector.java:601)
 
... 5 more 

 
the code i use is ：
 
public static void main(String args[]) {
  
  // the url will be to visit
  String requestURL = 
"http://gate.baidu.com/tc?m=2&w=0_5_%E5%93%80%E9%B8%A3&t=wap&ssid=0&from=0&bd_page_type=0&p=b43ed516d9c21fff57ee96685c52&order=2&vit=osres&uid=wap_1237916098_46&src=http%3A%2F%2Fpost%2Ebaidu%2Ecom%2Ff%3Fkw%3D%B9%C2%D1%E3%B0%A7%C3%F9";;
  
  // use httpclient to get the response of the url
  String response = null ;
  HttpClient httpClient = new HttpClient();
  GetMethod method = new GetMethod(requestURL);
 
  try {
   httpClient.executeMethod(method);
   response = new String(method.getResponseBody(), "utf-8");
  } catch (Exception e) {
   e.printStackTrace();
  } finally {
   method.releaseConnection();
  }
  
  // print the response ,if ok
  System.out.println(response);
 }