我正在编写测试程序以学习使用OkHttp和Scribe。我设法使用Scribe来检索我的令牌和令牌秘密。我当然已经拥有消费者密钥和消费者秘密。现在我试图访问Twitter端点。我收到错误代码401，我知道这意味着我没有正确验证我的请求。我查看了许多处理错误代码401的网站，但其中大多数都是关于检索我已经完成的令牌。我查看了几个网站上的代码，无法看到我做的不同。我也访问了这个网站oauth signature checker
一切都很好。所以我被卡住了。任何帮助将不胜感激。
package com.clarkgarrett.testokhttp;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Base64;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.security.SecureRandom;
import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;
import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.HttpUrl;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;
import static com.clarkgarrett.testokhttp.Utility.CONSUMER_API_KEY;
import static com.clarkgarrett.testokhttp.Utility.CONSUMER_API_SECRET;
import static com.clarkgarrett.testokhttp.Utility.accessTokenSecretString;
import static com.clarkgarrett.testokhttp.Utility.accessTokenString;
public class NextActivity2 extends AppCompatActivity {
private OkHttpClient client = new OkHttpClient();
//Picasso picasso = new Picasso.Builder(this).downloader(new OkHttp3Downloader(client)).build();
private String mCount = "25";
private long mTimeStamp;
private String mNonce, mSignatureString, mUrlString;
private static final String BASE_URL_STRING = "https://api.twitter.com/1.1/statuses/home_timeline.json";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_next);
OkHttpClient client = new OkHttpClient();
HttpUrl.Builder urlBuilder = HttpUrl.parse(BASE_URL_STRING).newBuilder();
urlBuilder.addQueryParameter("count", mCount);
urlBuilder.addQueryParameter("since_id", "1");
mUrlString = urlBuilder.build().toString();
mNonce = nonceGenerator();
mTimeStamp = System.currentTimeMillis()/1000L;
String signatureBaseString = createSignatureBaseString();
mSignatureString = generateSignature(signatureBaseString, CONSUMER_API_SECRET, accessTokenSecretString);
String header = createHeader();
Request request = new Request.Builder()
.header("Authorization" , header)
.url(mUrlString)
.build();
client.newCall(request).enqueue(new Callback() {
@Override
public void onFailure(Call call, IOException e) {
e.printStackTrace();
}
@Override
public void onResponse(Call call, final Response response) throws IOException {
if (!response.isSuccessful()) {
//Haven't even tried to do anything here yet.
throw new IOException("Unexpected code " + response +" network Responce= " + response.networkResponse());
}else{
}
}
});
}
private String nonceGenerator (){
SecureRandom random = new SecureRandom();
String s;
s = java.util.UUID.randomUUID().toString().replace("-","");
return s.substring(0,32);
}
private String encode(String s){
String es = "";
try {
es = URLEncoder.encode(s, "UTF-8");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
return es;
}
private String createSignatureBaseString(){
StringBuilder builder = new StringBuilder();
builder.append("&count=");
builder.append(mCount);
builder.append("&oauth_consumer_key=");
builder.append(encode(CONSUMER_API_KEY));
builder.append("&oauth_nonce=");
builder.append(mNonce);
builder.append("&oauth_signature_method=HMAC-SHA1&oauth_timestamp=");
builder.append(mTimeStamp);
builder.append("&oauth_token=");
builder.append(encode(accessTokenString));
builder.append("&oauth_version=");
builder.append(encode("1.0"));
builder.append("&since_id=1");
String intermediateString = encode(builder.toString());
builder = new StringBuilder();
builder.append("GET&");
builder.append(encode(BASE_URL_STRING));
builder.append("&");
builder.append(intermediateString);
return builder.toString();
}
private String createHeader(){
StringBuilder builder = new StringBuilder();
builder.append("OAuth oauth_consumer_key=\"");
builder.append(encode(CONSUMER_API_KEY));
builder.append("\", oauth_nonce=\"");
builder.append(mNonce);
builder.append("\", oauth_signature=\"");
builder.append(encode(mSignatureString));
builder.append("\", oauth_signature_method=\"HMAC-SHA1\", ");
builder.append("oauth_timestamp=\"");
builder.append(mTimeStamp);
builder.append("\", oauth_token=\"");
builder.append(encode(accessTokenString));
builder.append("\", oauth_version=\"");
builder.append(encode("1.0"));
builder.append("\"");
return builder.toString();
}
private String generateSignature(String signatueBaseStr, String oAuthConsumerSecret, String oAuthTokenSecret) {
byte[] byteHMAC = null;
try {
Mac mac = Mac.getInstance("HmacSHA1");
SecretKeySpec spec;
if (null == oAuthTokenSecret) {
String signingKey = encode(oAuthConsumerSecret) + '&';
spec = new SecretKeySpec(signingKey.getBytes(), "HmacSHA1");
} else {
String signingKey = encode(oAuthConsumerSecret) + '&' + encode(oAuthTokenSecret);
spec = new SecretKeySpec(signingKey.getBytes(), "HmacSHA1");
}
mac.init(spec);
byteHMAC = mac.doFinal(signatueBaseStr.getBytes("UTF-8"));
} catch (Exception e) {
e.printStackTrace();
}
return Base64.encodeToString(byteHMAC,Base64.NO_WRAP);
}
}
logcat输出：
05-08 16:14:34.694: I/art(14938): Late-enabling -Xcheck:jni
05-08 16:14:34.755: W/System(14938): ClassLoader referenced unknown path: /data/app/com.clarkgarrett.testokhttp-2/lib/arm
05-08 16:14:34.791: I/## My Info ##(14938): OauthActivity accessString= 2651797417-agpNu35sZbs5pI5yjHRibMfCezVjpuVuzzWxhAV
05-08 16:14:34.874: I/WebViewFactory(14938): Loading com.google.android.webview version 50.0.2661.86 (code 266108600)
05-08 16:14:34.947: I/cr_LibraryLoader(14938): Time to load native libraries: 3 ms (timestamps 648-651)
05-08 16:14:34.948: I/cr_LibraryLoader(14938): Expected native library version number "50.0.2661.86", actual native library version number "50.0.2661.86"
05-08 16:14:34.974: V/WebViewChromiumFactoryProvider(14938): Binding Chromium to main looper Looper (main, tid 1) {9910e04}
05-08 16:14:34.974: I/cr_LibraryLoader(14938): Expected native library version number "50.0.2661.86", actual native library version number "50.0.2661.86"
05-08 16:14:34.975: I/chromium(14938): [INFO:library_loader_hooks.cc(143)] Chromium logging enabled: level = 0, default verbosity = 0
05-08 16:14:34.990: I/cr_BrowserStartup(14938): Initializing chromium process, singleProcess=true
05-08 16:14:34.999: E/ApkAssets(14938): Error while loading asset assets/natives_blob_64.bin: java.io.FileNotFoundException: assets/natives_blob_64.bin
05-08 16:14:35.000: E/ApkAssets(14938): Error while loading asset assets/snapshot_blob_64.bin: java.io.FileNotFoundException: assets/snapshot_blob_64.bin
05-08 16:14:35.014: I/Adreno-EGL(14938): <qeglDrvAPI_eglInitialize:379>: QUALCOMM Build: 10/21/15, 369a2ea, I96aee987eb
05-08 16:14:35.068: W/cr_media(14938): Requires BLUETOOTH permission
05-08 16:14:35.107: D/cr_Ime(14938): [InputMethodManagerWrapper.java:30] Constructor
05-08 16:14:35.117: W/cr_AwContents(14938): onDetachedFromWindow called when already detached. Ignoring
05-08 16:14:35.119: D/cr_Ime(14938): [InputMethodManagerWrapper.java:59] isActive: false
05-08 16:14:35.175: D/OpenGLRenderer(14938): Use EGL_SWAP_BEHAVIOR_PRESERVED: true
05-08 16:14:35.232: I/OpenGLRenderer(14938): Initialized EGL, version 1.4
05-08 16:14:35.472: I/okhttp3.OkHttpClient(14938): Callback failure for call to https://api.twitter.com/...
**05-08 16:14:35.472: I/okhttp3.OkHttpClient(14938): java.io.IOException: Unexpected code Response{protocol=h2, code=401, message=, url=https://api.twitter.com/1.1/statuses/home_timeline.json?count=25&since_id=1} network Responce= Response{protocol=h2, code=401, message=, url=https://api.twitter.com/1.1/statuses/home_timeline.json?count=25&since_id=1}**
05-08 16:14:35.472: I/okhttp3.OkHttpClient(14938): at com.clarkgarrett.testokhttp.NextActivity2$1.onResponse(NextActivity2.java:71)
05-08 16:14:35.472: I/okhttp3.OkHttpClient(14938): at okhttp3.RealCall$AsyncCall.execute(RealCall.java:133)
05-08 16:14:35.472: I/okhttp3.OkHttpClient(14938): at okhttp3.internal.NamedRunnable.run(NamedRunnable.java:32)
05-08 16:14:35.472: I/okhttp3.OkHttpClient(14938): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
05-08 16:14:35.472: I/okhttp3.OkHttpClient(14938): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
05-08 16:14:35.472: I/okhttp3.OkHttpClient(14938): at java.lang.Thread.run(Thread.java:818)
05-08 16:14:35.502: I/cr_Ime(14938): ImeThread is not enabled.
05-08 16:14:35.568: E/libEGL(14938): validate_display:255 error 3008 (EGL_BAD_DISPLAY)
05-08 16:14:36.133: W/cr_BindingManager(14938): Cannot call determinedVisibility() - never saw a connection for the pid: 14938
05-08 16:14:36.135: D/cr_Ime(14938): [InputMethodManagerWrapper.java:59] isActive: false
05-08 16:14:36.155: I/chromium(14938): [INFO:CONSOLE(7)] "The value "device-width;" for key "width" is invalid, and has been ignored.", source: https://api.twitter.com/oauth/authorize?oauth_token=zLafmwAAAAAAu_IxAAABVJKmrbA (7)
05-08 16:14:36.155: I/chromium(14938): [INFO:CONSOLE(7)] "The value "1.0;" for key "initial-scale" was truncated to its numeric prefix.", source: https://api.twitter.com/oauth/authorize?oauth_token=zLafmwAAAAAAu_IxAAABVJKmrbA (7)
05-08 16:14:36.155: I/chromium(14938): [INFO:CONSOLE(7)] "The value "1.0;" for key "maximum-scale" was truncated to its numeric prefix.", source: https://api.twitter.com/oauth/authorize?oauth_token=zLafmwAAAAAAu_IxAAABVJKmrbA (7)
05-08 16:14:36.155: I/chromium(14938): [INFO:CONSOLE(7)] "Error parsing a meta element's content: ';' is not a valid key-value pair separator. Please use ',' instead.", source: https://api.twitter.com/oauth/authorize?oauth_token=zLafmwAAAAAAu_IxAAABVJKmrbA (7)
05-08 16:14:42.132: I/art(14938): Debugger is no longer active
答案 0 :(得分：1)
我发现了两个错误。第一行
builder.append("&count=");
不应该有＆amp ;.它应该读
builder.append("count=");
这是剪切和粘贴错误。 其次，方法generateSignature（）需要返回一个UTF-8字符串。退货声明
return Base64.encodeToString(byteHMAC,Base64.NO_WRAP);
已修改如下：
String s ="";
try {
s = new String(Base64.encode(byteHMAC, Base64.NO_WRAP), "UTF-8");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
};
return s;
现在我正在从Twitter上检索json数据。