android-尝试获取Instagram API的访问令牌时出现FileNotFoundException

概述尝试检索access_token时出现FileNotFoundException：java.io.FileNotFoundException:https://api.instagram.com/oauth/access_token&client_id=e909da82f8544a70bb9b29434xxxxxx&client_secret=fa34037e0f534628bb9becd1a3xxxxxx&grant_type=authorization_code&r

尝试检索access_token时出现fileNotFoundException：

java.io.fileNotFoundException: https://API.instagram.com/oauth/access_token&clIEnt_ID=e909da82f8544a70bb9b29434xxxxxx&clIEnt_secret=fa34037e0f534628bb9becd1a3xxxxxx&grant_type=authorization_code&redirect_uri=x-oauthflow-instagram://callback&code=520401255.e909da8.244c14ba79e842868a695192835c83ac01-01 11:50:39.371: W/System.err(21868):    at libcore.net.http.httpURLConnectionImpl.getinputStream(httpURLConnectionImpl.java:186)

错误发生在这一行

JsONObject JsonObj  = (JsONObject) new JsONTokener(streamToString(urlConnection.getinputStream())).nextValue();

我究竟做错了什么？

解决方法:

只需将InstagramApp.java替换为您当前在库中的类.

package br.com.dina.oauth.instagram;import java.io.BufferedReader;import java.io.IOException;import java.io.inputStream;import java.io.inputStreamReader;import java.io.OutputStreamWriter;import java.net.httpURLConnection;import java.net.URL;import org.Json.JsONObject;import org.Json.JsONTokener;import androID.app.ProgressDialog;import androID.content.Context;import androID.content.Intent;import androID.net.Uri;import androID.os.Handler;import androID.os.Message;import androID.util.Log;import br.com.dina.oauth.instagram.InstagramDialog.OAuthDialogListener;/** *  * @author Thiago Locatelli <thiago.locatelli@gmail.com> * @author Lorensius W. L T <lorenz@londatiga.net> *  */public class InstagramApp {    private InstagramSession mSession;    private InstagramDialog mDialog;    private OAuthAuthenticationListener mListener;    private ProgressDialog mProgress;    private String mAuthUrl;    private String mTokenUrl;    private String mAccesstoken;    private Context mCtx;    private String mClIEntID;    private String mClIEntSecret;    private static int WHAT_FINAliZE = 0;    private static int WHAT_ERROR = 1;    private static int WHAT_FETCH_INFO = 2;    /**     * Callback url, as set in 'Manage OAuth Costumers' page     * (https://developer.github.com/)     */    public static String mCallbackUrl = "";    private static final String AUTH_URL = "https://API.instagram.com/oauth/authorize/";    private static final String TOKEN_URL = "https://API.instagram.com/oauth/access_token";    private static final String API_URL = "https://API.instagram.com/v1";    private static final String TAG = "InstagramAPI";    public InstagramApp(Context context, String clIEntID, String clIEntSecret,            String callbackUrl) {        mClIEntID = clIEntID;        mClIEntSecret = clIEntSecret;        mCtx = context;        mSession = new InstagramSession(context);        mAccesstoken = mSession.getAccesstoken();        mCallbackUrl = callbackUrl;        mTokenUrl = TOKEN_URL + "?clIEnt_ID=" + clIEntID + "&clIEnt_secret="                + clIEntSecret + "&redirect_uri=" + mCallbackUrl + "&grant_type=authorization_code";        mAuthUrl = AUTH_URL + "?clIEnt_ID=" + clIEntID + "&redirect_uri="                + mCallbackUrl + "&response_type=code&display=touch&scope=likes+comments+relationships";        OAuthDialogListener Listener = new OAuthDialogListener() {            @OverrIDe            public voID onComplete(String code) {                getAccesstoken(code);            }            @OverrIDe            public voID one rror(String error) {                mListener.onFail("Authorization Failed");            }        };        mDialog = new InstagramDialog(context, mAuthUrl, Listener);        mProgress = new ProgressDialog(context);        mProgress.setCancelable(false);    }    private voID getAccesstoken(final String code) {        mProgress.setMessage("Getting access token ...");        mProgress.show();        new Thread() {            @OverrIDe            public voID run() {                Log.i(TAG, "Getting access token");                int what = WHAT_FETCH_INFO;                try {                    URL url = new URL(TOKEN_URL);                    //URL url = new URL(mTokenUrl + "&code=" + code);                    Log.i(TAG, "opening Token URL " + url.toString());                    httpURLConnection urlConnection = (httpURLConnection) url.openConnection();                    urlConnection.setRequestMethod("POST");                    urlConnection.setDoinput(true);                    urlConnection.setDoOutput(true);                    //urlConnection.connect();                    OutputStreamWriter writer = new OutputStreamWriter(urlConnection.getoutputStream());                    writer.write("clIEnt_ID="+mClIEntID+                                "&clIEnt_secret="+mClIEntSecret+                                "&grant_type=authorization_code" +                                "&redirect_uri="+mCallbackUrl+                                "&code=" + code);                    writer.flush();                    String response = streamToString(urlConnection.getinputStream());                    Log.i(TAG, "response " + response);                    JsONObject JsonObj = (JsONObject) new JsONTokener(response).nextValue();                    mAccesstoken = JsonObj.getString("access_token");                    Log.i(TAG, "Got access token: " + mAccesstoken);                    String ID = JsonObj.getJsONObject("user").getString("ID");                    String user = JsonObj.getJsONObject("user").getString("username");                    String name = JsonObj.getJsONObject("user").getString("full_name");                                     mSession.storeAccesstoken(mAccesstoken, ID, user, name);                } catch (Exception ex) {                    what = WHAT_ERROR;                    ex.printstacktrace();                }                mHandler.sendMessage(mHandler.obtainMessage(what, 1, 0));            }        }.start();    }    private voID fetchUsername() {        mProgress.setMessage("Finalizing ...");        new Thread() {            @OverrIDe            public voID run() {                Log.i(TAG, "Fetching user info");                int what = WHAT_FINAliZE;                try {                    URL url = new URL(API_URL + "/users/" + mSession.getID() + "/?access_token=" + mAccesstoken);                    Log.d(TAG, "opening URL " + url.toString());                    httpURLConnection urlConnection = (httpURLConnection) url.openConnection();                    urlConnection.setRequestMethod("GET");                    urlConnection.setDoinput(true);                    //urlConnection.setDoOutput(true);                    urlConnection.connect();                    String response = streamToString(urlConnection.getinputStream());                    System.out.println(response);                    JsONObject JsonObj = (JsONObject) new JsONTokener(response).nextValue();                    String name = JsonObj.getJsONObject("data").getString("full_name");                    String bio = JsonObj.getJsONObject("data").getString("bio");                    Log.i(TAG, "Got name: " + name + ", bio [" + bio + "]");                } catch (Exception ex) {                    what = WHAT_ERROR;                    ex.printstacktrace();                }                mHandler.sendMessage(mHandler.obtainMessage(what, 2, 0));            }        }.start();      }    private Handler mHandler = new Handler() {        @OverrIDe        public voID handleMessage(Message msg) {            if (msg.what == WHAT_ERROR) {                mProgress.dismiss();                if(msg.arg1 == 1) {                    mListener.onFail("Failed to get access token");                }                else if(msg.arg1 == 2) {                    mListener.onFail("Failed to get user information");                }            }             else if(msg.what == WHAT_FETCH_INFO) {                fetchUsername();            }            else {                mProgress.dismiss();                mListener.onSuccess();            }        }    };    public boolean hasAccesstoken() {        return (mAccesstoken == null) ? false : true;    }    public voID setListener(OAuthAuthenticationListener Listener) {        mListener = Listener;    }    public String getUsername() {        return mSession.getUsername();    }    public String getID() {        return mSession.getID();    }    public String getname() {        return mSession.getname();    }    public voID authorize() {        //Intent webAuthIntent = new Intent(Intent.ACTION_VIEW);        //webAuthIntent.setData(Uri.parse(AUTH_URL));        //mCtx.startActivity(webAuthIntent);        mDialog.show();    }    private String streamToString(inputStream is) throws IOException {        String str = "";        if (is != null) {            StringBuilder sb = new StringBuilder();            String line;            try {                BufferedReader reader = new BufferedReader(                        new inputStreamReader(is));                while ((line = reader.readline()) != null) {                    sb.append(line);                }                reader.close();            } finally {                is.close();            }            str = sb.toString();        }        return str;    }    public voID resetAccesstoken() {        if (mAccesstoken != null) {            mSession.resetAccesstoken();            mAccesstoken = null;        }    }    public interface OAuthAuthenticationListener {        public abstract voID onSuccess();        public abstract voID onFail(String error);    }}

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