HttpClient中的授权承载令牌？答案

【问题标题】：Authorization Bearer token in HttpClient?HttpClient中的授权承载令牌？
【发布时间】：2016-10-31 08:33:44
【问题描述】：

我正在尝试使用 Java 中的 oauth2 授权令牌访问 API 这是客户端代码

DefaultHttpClient httpclient = new DefaultHttpClient(); 
HttpPost post = new HttpPost(http://res-api");
post.setHeader("Content-Type","application/json");
post.setHeader("Authorization", "Bearer " + finalToken);

JSONObject json = new JSONObject();
// json.put ...
// Send it as request body in the post request 

StringEntity params = new StringEntity(json.toString());
post.setEntity(params);

HttpResponse response = httpclient.execute(post);
httpclient.getConnectionManager().shutdown();

这会返回 401。

等效的 curl 命令使用相同的令牌没有问题：

curl -H "Content-Type:application/json" -H "Authorization:Bearer randomToken" -X POST -d @example.json http://rest-api

我尝试注销请求，看起来授权设置正确

DEBUG [2016-06-28 20:51:13,655] org.apache.http.headers: >> Authorization: Bearer authRandomToKen; Path=/; Domain=oauth2-server; Expires=Wed, 29 Jun 2016 20:51:13 UTC

我通过复制粘贴相同的标记尝试了 curl 命令，并且效果很好

虽然我也看到了这一行

DEBUG [2016-06-28 20:51:13,658] org.apache.http.impl.client.DefaultHttpClient: Response contains no authentication challenges

【问题讨论】：

尝试使用类似wireshark的东西来验证网络调用，CURL和Java看起来应该是一样的。很可能未发送授权标头。尝试使用 CURL 中的代码对其进行硬编码。
感谢您的指点，我用建议编辑了这个问题。没有运气
你能得到响应头吗？请求标头似乎还没有被识别。
响应头是否也应该包含身份验证令牌？我刚刚尝试记录它并没有
看起来没有设置标题

标签： java authentication curl httpclient bearer-token

【解决方案1】：

I have implemented above given code for receiving Pipedream SSE real time events.Below The Below Code is working fine in Eclipse WITHOUT a 401 ERROR.

package //////YOUR PACKAGE NAME HERE/////

    import java.io.BufferedReader;
    import java.io.InputStreamReader;
    import java.net.HttpURLConnection;
    import java.net.URL;

    public class HttpURLConnectionExample {


    public static void main(String[] args) throws Exception {

        // Sending get request
        URL url = new URL("https://your Server website");
        
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setRequestProperty("Accept", "application/json");
        conn.setRequestProperty("Authorization","Bearer PLACE.HERE");
        
        //e.g. bearer token= eyJhbGciOiXXXzUxMiJ9.eyJzdWIiOiPyc2hhcm1hQHBsdW1zbGljZS5jb206OjE6OjkwIiwiZXhwIjoxNTM3MzQyNTIxLCJpYXQiOjE1MzY3Mzc3MjF9.O33zP2l_0eDNfcqSQz29jUGJC-_THYsXllrmkFnk85dNRbAw66dyEKBP5dVcFUuNTA8zhA83kk3Y41_qZYx43T

        //conn.setRequestProperty("Content-Type","application/json");
        
       conn.setRequestMethod("GET");
        
       
        
        BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
        String output;

        StringBuffer response = new StringBuffer();
       
        
        while ((output = in.readLine()) != null) {
            System.out.println("Response:-" + output.toString());
    ////you will get output in "output.toString()" ,Use it however you like
        }
        in.close();
        
    }
}

【讨论】：

【解决方案2】：

我遇到过类似的情况，我可以通过以下方式做到这一点，希望这对其他人有帮助。

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

public class HttpURLConnectionExample {


    public static void main(String[] args) throws Exception {

        // Sending get request
        URL url = new URL("http://example-url");
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();

        conn.setRequestProperty("Authorization","Bearer "+" Actual bearer token issued by provider.");
        //e.g. bearer token= eyJhbGciOiXXXzUxMiJ9.eyJzdWIiOiPyc2hhcm1hQHBsdW1zbGljZS5jb206OjE6OjkwIiwiZXhwIjoxNTM3MzQyNTIxLCJpYXQiOjE1MzY3Mzc3MjF9.O33zP2l_0eDNfcqSQz29jUGJC-_THYsXllrmkFnk85dNRbAw66dyEKBP5dVcFUuNTA8zhA83kk3Y41_qZYx43T

        conn.setRequestProperty("Content-Type","application/json");
        conn.setRequestMethod("GET");


        BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
        String output;

        StringBuffer response = new StringBuffer();
        while ((output = in.readLine()) != null) {
            response.append(output);
        }

        in.close();
        // printing result from response
        System.out.println("Response:-" + response.toString());

    }
}

【讨论】：

上面的代码工作正常。但 Eclipse 想让我尝试/捕捉它。

【解决方案3】：

我曾尝试使用 HttpClient 做类似的事情，但我通过进行如下的小改动使其正常工作。

post.setHeader(HttpHeaders.CONTENT_TYPE,"application/json");
post.setHeader(HttpHeaders.AUTHORIZATION, "Bearer " + finalToken);

【讨论】：