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如果我问一些愚蠢的问题，请原谅我，我是新手。我需要在我的 Java 应用程序中实现 OAuth 以针对 launchpad.net API 进行身份验证。文档_使用三个参数指定令牌请求的启动：oauth_consumer_key 例如（我的应用程序的名称）、oauth_signature_method 例如“PLAINTEXT”和 oauth_signature 例如字符串“&”。我意识到大多数 OAuth 库都要求我已经从 OAuth 提供者（例如在 Twitter 中发布）获得了消费者密钥和消费者 ID/秘密，并且大多数示例都是以这种方式组织的。但是，launchpad.net 只有在发出请求令牌后才会发出这些参数（它们不使用第三方提供商）。我该如何继续？在尝试了一些引发错误的库后，我目前陷入困境。非常感谢您提供任何有用的信息。官方的启动板库在 python 中。

我的初始代码如下：

public class Quicky {

    public static void main(String[] args) throws Exception {
        CloseableHttpClient httpclient = HttpClients.createDefault();
        try {
            HttpGet httpGet = new HttpGet("https://launchpad.net/+request-token");
            CloseableHttpResponse response1 = httpclient.execute(httpGet);
try {
                System.out.println("Your current GET request status:" + response1.getStatusLine());
                HttpEntity entity1 = response1.getEntity();
  EntityUtils.consume(entity1);
            } finally {
                response1.close();
            }

            HttpRequest request;
            HttpPost httpPost = new HttpPost("https://launchpad.net/+request-token");
            PostMethod poster = new PostMethod();
            List <NameValuePair> postParams = new ArrayList <NameValuePair>();
            postParams.add(new BasicNameValuePair("oauth_customer_key", "XXXX"));
            postParams.add(new BasicNameValuePair("oauth_signature_method", "PLAINTEXT"));
            postParams.add(new BasicNameValuePair("oauth_signature", "&"));
   httpPost.setEntity(new UrlEncodedFormEntity(postParams, "utf-8"));
//            httpPost.setEntity(entity1);
            httpclient.execute(httpPost);

            HttpParameters requestParams = (HttpParameters) postParams;
            CloseableHttpResponse response2 = httpclient.execute(httpPost);
            try {
                System.out.println("Your current POST request status:" + response2.getStatusLine());
                HttpEntity entity2 = response2.getEntity();
                // do something useful with the response body
                // and ensure it is fully consumed
                EntityUtils.consume(entity2);
            } finally {
                response2.close();
            }
        } finally {
            httpclient.close();
        }
    }

}
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1 回答 1

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经过一些研究和代码重构，我终于解决了问题错误消息。正确的代码如下，也许它对那里的人有用。

    public class LaunchPadTokenRetriever {  

   public static void main(String[] args) throws ClientProtocolException,       IOException{

    CloseableHttpClient httpclient = HttpClients.createDefault();

    HttpPost httpPost = new HttpPost("https://launchpad.net/+request-token");
    httpPost.addHeader("Content-Type", "application/x-www-form-urlencoded");

    List <NameValuePair> urlParams = new ArrayList <NameValuePair>();
    urlParams.add(new BasicNameValuePair("oauth_signature", "&"));
    urlParams.add(new BasicNameValuePair("oauth_consumer_key", "tester"));
    urlParams.add(new BasicNameValuePair("oauth_signature_method", "PLAINTEXT"));
    httpPost.setEntity(new UrlEncodedFormEntity(urlParams));
    CloseableHttpResponse response = httpclient.execute(httpPost);
    System.out.println(response);

    try {
      System.out.println(response.getStatusLine());
      HttpEntity entity = response.getEntity();
      ResponseHandler<String> responseHandler = new BasicResponseHandler();
      String responseBody =  httpclient.execute(httpPost, responseHandler);
      System.out.println("Initial credentials ---> "+ responseBody);
      System.out.println();    
      String getresponse = responseBody;

      EntityUtils.consume(entity);
    } finally {
      response.close();
    }
  }

}
于 2016-02-23T08:18:12.220 回答