使用Java apache http令牌进行Google身份验证

Question

我正在尝试使用简单的Java程序与Google进行身份验证。我用我的凭证发布到正确的URL。我收到了HTTP状态代码200的响应，但没有包含我需要为用户检索提要的任何身份验证令牌。下面的代码

private static String postData = "https://www.google.com/accounts/ClientLogin?Content-type=application/x-www-form-urlencoded&accountType=GOOGLE&Email=xxxxxxxx&Passwd=xxxxx"; 

public GoogleConnector(){ 
    HttpClient client=new DefaultHttpClient(); 
    HttpPost method=new HttpPost(postData); 
    try{ 
     HttpResponse response=client.execute(method); 
     System.out.println(response.toString()); 
    } 
    catch(Exception e){ 
    } 

Answer 1

好吧，你有第一个问题是，“内容类型”需要一个头，而不是一个请求参数。其次，POST参数应附加到请求正文，而不是请求URL。你的代码应该是这样的：

HttpClient client = new DefaultHttpClient(); 

HttpPost method = new HttpPost("https://www.google.com/accounts/ClientLogin"); 
method.setHeader("Content-Type", "application/x-www-form-urlencoded"); 

List<BasicNameValuePair> postParams = new ArrayList<BasicNameValuePair>(4); 
postParams.add(new BasicNameValuePair("accountType", "GOOGLE")); 
postParams.add(new BasicNameValuePair("Email", "xxxxxxx")); 
postParams.add(new BasicNameValuePair("Passwd", "xxxxxx")); 
postParams.add(new BasicNameValuePair("service", "cl")); 

UrlEncodedFormEntity formEntity = new UrlEncodedFormEntity(postParams); 
method.setEntity(formEntity); 

HttpResponse response=client.execute(method); 
System.out.println(response.toString());