Google Auth2给出“invalid_request”响应获取访问令牌和刷新令牌

Question

如何获取访问令牌&刷新令牌用于XMPP的谷歌身份验证。我成功获得授权码，但现在我需要获取访问令牌&刷新令牌。但是，当我的要求去做Android中使用下面的代码，我得到的回应： { “错误”：“INVALID_REQUEST” }

HttpPost request = new HttpPost("https://accounts.google.com/o/oauth2/token");   
json.put("client_id", "128232338269.apps.googleusercontent.com"); 
json.put("client_secret", "eufZ8Rmjsk1MaADYsHYW"); 
json.put("redirect_uri", "urn:ieadsdg:oauth:2.0:oob"); 
json.put("code", res_code); 
json.put("grant_type", "authorization_code"); 

StringEntity se = new StringEntity(json.toString()); 

Log.i(TAG, "JSON********" +json.toString()); 
se.setContentType(new BasicHeader(HTTP.CONTENT_TYPE, "application/json")); 
request.setEntity(se); 

/* Checking response */ 
response = client.execute(request); 

但我收到此错误代码。 Response = { "error" : "invalid_request" }

这里有什么问题。 HttpPost方法是正确的这个网址。

Answer 1

聊天后我们发现问题在哪里。有效载荷错误，内容类型设置错误。以下代码是解决方案：

HttpClient client = new DefaultHttpClient(); 
    HttpPost request = new HttpPost("https://accounts.google.com/o/oauth2/token"); 
    request.setHeader("Content-type", "application/x-www-form-urlencoded"); 

    //Please make this custom with you're credentials 
    String requestBody = "code=123123132&client_secret=eufFgyAZ8Rmjsk1MaADYsHYW&redirect_uri=urn:ietf:wg:oauth:2.0:oob&grant_type=authorization_code&client_id=128169428269.apps.googleusercontent.com"; 

    try { 
     request.setEntity(new StringEntity(requestBody)); 
    } catch (UnsupportedEncodingException e) { 
     e.printStackTrace(); //To change body of catch statement use File | Settings | File Templates. 
    } 

    /* Checking response */ 
    try { 
     HttpResponse response = client.execute(request); 
     String results = "ERROR"; 
     results = EntityUtils.toString(response.getEntity()); 
     Log.d("STACK", "Response::" + results); 
    } catch (IOException e) { 
     e.printStackTrace(); //To change body of catch statement use File | Settings | File Templates. 
    }