android新浪oauth验证错误

Question

在走到  String authUrl = httpOauthprovider.retrieveRequestToken(
                    httpOauthConsumer, callBackUrl);时报错oauth.signpost.exception.OAuthCommunicationException: Communication with the service provider failed: null** 
**以下是代码** 
package cn.botianxia.utils;public class OAuth {
    private CommonsHttpOAuthConsumer httpOauthConsumer;
    private OAuthProvider httpOauthprovider;
    public String APP_KEY;
    public String APP_SECRET;    public static final String BOUNDARY = "7cd4a6d158c";
    public static final String MP_BOUNDARY = "--" + BOUNDARY;
    public static final String END_MP_BOUNDARY = "--" + BOUNDARY + "--";
    public static final String MULTIPART_FORM_DATA = "multipart/form-data";    private static OAuth instance = null;    public static OAuth getInstance() {
        if (instance == null) {
            instance = new OAuth();
        }
        return instance;
    }    private OAuth() {
        // 修改成自己的APP_KEY和APP_SECRET
        this("1736498531", "a398261f34b00555c1cd8db6730f1b4c");
    }    private OAuth(String app_key, String app_secret) {
        this.APP_KEY = app_key;
        this.APP_SECRET = app_secret;
    }    /**
     * 请求AccessToken
     * 
     * @param activity
     * @param callBackUrl
     * @return
     */
    public Boolean requestAccessToken(Activity activity, String callBackUrl) {
        Boolean flag = false;
        try {
            httpOauthConsumer = new CommonsHttpOAuthConsumer(APP_KEY,
                    APP_SECRET);            httpOauthprovider = new DefaultOAuthProvider(
                    "http://api.t.sina.com.cn/oauth/request_token",
                    "http://api.t.sina.com.cn/oauth/access_token",
                    "http://api.t.sina.com.cn/oauth/authorize");
            String authUrl = httpOauthprovider.retrieveRequestToken(
                    httpOauthConsumer, callBackUrl);
            activity.startActivity(new Intent(Intent.ACTION_VIEW, Uri
                    .parse(authUrl)));
            flag = true;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return flag;
    }    public UserInfo getAccessToken(Intent intent) {
        Uri uri = intent.getData();
        // 处理获取返回的oauth_verifier参数
        String verifier = uri
                .getQueryParameter(oauth.signpost.OAuth.OAUTH_VERIFIER);
        try {
            httpOauthprovider.setOAuth10a(true);
            httpOauthprovider.retrieveAccessToken(httpOauthConsumer, verifier);
        } catch (OAuthMessageSignerException ex) {
            ex.printStackTrace();
        } catch (OAuthNotAuthorizedException ex) {
            ex.printStackTrace();
        } catch (OAuthExpectationFailedException ex) {
            ex.printStackTrace();
        } catch (OAuthCommunicationException ex) {
            ex.printStackTrace();
        }
        SortedSet<String> user_id = httpOauthprovider.getResponseParameters()
                .get("user_id");
        String userToken = httpOauthConsumer.getToken();
        String userSecret = httpOauthConsumer.getTokenSecret();
        UserInfo user = new UserInfo(user_id.first(), userToken, userSecret);
        return user;
    }    public HttpResponse signRequest(String token, String tokenSecret,
            String url, List params) {
        HttpPost post = new HttpPost(url);
        ByteArrayOutputStream bos = null;
        String file = null;
        try {
            // 参数的编码转换为utf-8
            post.setEntity(new UrlEncodedFormEntity(params, HTTP.UTF_8));            for (int i = 0; i < params.size(); i++) {
                BasicNameValuePair nameValuePair = (BasicNameValuePair) params
                        .get(i);
                if (nameValuePair.getName().equals("pic")) {
                    file = nameValuePair.getValue();
                }
            }            byte[] data = null;
            bos = new ByteArrayOutputStream(1024 * 50);
            if (!TextUtils.isEmpty(file)) {
                paramToUpload(bos, params);
                //设置表单类型和分隔符
                post.setHeader("Content-Type", MULTIPART_FORM_DATA+ "; boundary=" + BOUNDARY);
                Bitmap bf = BitmapFactory.decodeFile(file);
                imageContentToUpload(bos, bf);
                data = bos.toByteArray();
                ByteArrayEntity formEntity = new ByteArrayEntity(data);
                post.setEntity(formEntity);
            }        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        } finally {
            if (bos != null) {
                try {
                    bos.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
        post.getParams().setBooleanParameter(
                CoreProtocolPNames.USE_EXPECT_CONTINUE, false);         return signRequest(token, tokenSecret, post);
    }    public HttpResponse signRequest(String token, String tokenSecret,
            HttpPost post) {
        httpOauthConsumer = new CommonsHttpOAuthConsumer(APP_KEY, APP_SECRET);
        httpOauthConsumer.setTokenWithSecret(token, tokenSecret);
        HttpResponse response = null;
        try {
            httpOauthConsumer.sign(post);
        } catch (OAuthMessageSignerException e) {
            e.printStackTrace();
        } catch (OAuthExpectationFailedException e) {
            e.printStackTrace();
        } catch (OAuthCommunicationException e) {
            e.printStackTrace();
        }
        try {
            response = new DefaultHttpClient().execute(post);
        } catch (ClientProtocolException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return response;
    }    private static void paramToUpload(OutputStream baos,
            List<BasicNameValuePair> params) {
        BasicNameValuePair key = null;
        for (int loc = 0; loc < params.size(); loc++) {
            key = params.get(loc);
            StringBuilder temp = new StringBuilder(10);
            temp.setLength(0);
            temp.append(MP_BOUNDARY).append("\r\n");
            temp.append("content-disposition: form-data; name=\"").append(key.getName()).append("\"\r\n\r\n");
            temp.append(key.getValue()).append("\r\n");
            byte[] res = temp.toString().getBytes();
            try {
                baos.write(res);
            } catch (IOException e) {            }
        }
    }    private static void imageContentToUpload(OutputStream out, Bitmap imgpath) {
        StringBuilder temp = new StringBuilder();        temp.append(MP_BOUNDARY).append("\r\n");
        temp.append("Content-Disposition: form-data; name=\"pic\"; filename=\"")
                .append("temp.png").append("\"\r\n");
        String filetype = "image/png";
        temp.append("Content-Type: ").append(filetype).append("\r\n\r\n");
        System.out.println("----2----" + temp.toString());
        byte[] res = temp.toString().getBytes();
        BufferedInputStream bis = null;
        try {
            out.write(res);
            //压缩图片
            imgpath.compress(CompressFormat.PNG, 75, out);
            out.write("\r\n".getBytes());
            out.write(("\r\n" + END_MP_BOUNDARY).getBytes());
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (null != bis) {
                try {
                    bis.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }
}**以下是调用的activity** package cn.botianxia;public class OAuthActivity extends Activity {
    /** Called when the activity is first created. */
        private OAuth oauth;
        
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        Toast.makeText(OAuthActivity.this, "开始执行", Toast.LENGTH_LONG).show();        // 是否去授权
        new Builder(OAuthActivity.this)
        .setTitle("是否去新浪授权")
        .setPositiveButton("确定",new OnClickListener(){                        @Override
                        public void onClick(DialogInterface dialog, int which) {
                                // TODO Auto-generated method stub
                                String callBackUrl = "weitianxia://bogujin";
                                oauth = OAuth.getInstance();
                                oauth.requestAccessToken(OAuthActivity.this, callBackUrl);
                        }
        })
       .show();
        }
}

Answer 1

想做个android版本的新浪客户端程序，但是怎么也通不过新浪的oauth验证

Answer 2

我也碰到这个问题，试了这个方法有效。放在这以便其他人查看。。http://stackoverflow.com/questions/21183407/linkedin-oauth-signpost-exception-oauthcommunicationexception-communication-w