如何發送HTTP POST請求並接收響應？

Question

我打算創建適用於CommuniGate Pro服務器的移動應用程序。

例如，我需要做下面的Android客戶端C - CGP服務器S交談，並得到XIMSS.nonce節點值：

C:GET /ximsslogin/ HTTP/1.1 
    Host: myserver.com 
    Content-Type: text/xml 
    Content-Length: 42 

    <XIMSS><listFeatures id="list" /><XIMSS> 

S:HTTP/1.1 200 OK 
    Content-Length: 231 
    Connection: keep-alive 
    Content-Type: text/xml;charset=utf-8 
    Server: CommuniGatePro/5.3 

    <XIMSS><nonce>2C3E575E5498CE63574D40F18D00C873</nonce><language>german</language><response id="s"/></XIMSS> 

例如，在ActionScript 3.0，它看起來是這樣的：

var loader:Loader = new Loader(); 
loader.addEventListener(Event.COMPLETE, completeHandler); 
var urlRequest:URLRequest = new URLRequest(...); 
urlRequest.method = ...; 
urlRequest.data = ...; 
loader.load(urlRequest); 

private function completeHandler(...):void { ... }; 

它如何在Java中看Android 2.1？

Answer 1

正如Schnapple所說，你的問題看起來很寬泛，並且讓人難以理解。

下面是一些通用代碼，用於發送HTTP POST並從服務器獲取響應，儘管這可能會有所幫助。

---

public String postPage(String url, File data, boolean returnAddr) { 

    ret = null; 

    httpClient.getParams().setParameter(ClientPNames.COOKIE_POLICY, CookiePolicy.RFC_2109); 

    httpPost = new HttpPost(url); 
    response = null; 

    FileEntity tmp = null;  

    tmp = new FileEntity(data,"UTF-8"); 

    httpPost.setEntity(tmp); 

    try { 
     response = httpClient.execute(httpPost,localContext); 
    } catch (ClientProtocolException e) { 
     System.out.println("HTTPHelp : ClientProtocolException : "+e); 
    } catch (IOException e) { 
     System.out.println("HTTPHelp : IOException : "+e); 
    } 
      ret = response.getStatusLine().toString(); 

      return ret; 
}