Google app engine 尝试到达应用程序引擎终结点时出现SSLHandshakeException

我正在尝试将我的一个端点方法从android客户端连接到本地运行的应用程序引擎后端。问题是我得到了一个sslhandshake异常。我的API不受OAuth保护。我尝试达到的方法如下所示：

@ApiMethod(name = "register")
public UserInfo registerUser(UserInfo userInfo) {
    try {
        checkUserParameters(userInfo);
        ofy().save().entity(userInfo).now();
        return ofy().load().entity(userInfo).now();
    } catch (InvalidPropertiesFormatException e) {
        logger.info(e.getMessage());
        return null;
    }
}

从我的客户那里，我正在这样做：

  if (regService == null) {
            UserInfoApi.Builder builder = new UserInfoApi.Builder(AndroidHttp.newCompatibleTransport(),
                   new AndroidJsonFactory(), null)
                .setRootUrl(LoginActivity.LOCALHOST_IP)
                .setGoogleClientRequestInitializer(new GoogleClientRequestInitializer() {
                    @Override
                    public void initialize(AbstractGoogleClientRequest<?> abstractGoogleClientRequest)
                            throws IOException {
                        abstractGoogleClientRequest.setDisableGZipContent(true);
                    }
           });

           regService = builder.build();
           UserInfo userInfo = new UserInfo();
           userInfo.setGcmId(registerToGcm());
           userInfo.setAccountName(params[0]);
           userInfo.setEmail(params[0]);
           userInfo.setProfilePictureUrl(null);
           UserInfo userInfo = regService.register(userInfo).execute();
  }

---

所以。。。问题是我在客户端上设置rootUrl时使用的是https而不是http

我做了同样的事情，我没有设置rooturl。现在30个客户端中有一个出现了这个错误。。。生成的客户端在生成器构造函数中有一个https url作为默认参数。为什么它在30个客户端中的29个客户端上工作，而在1个客户端上它给出了这个错误？！您是如何从https更改为http的？请参阅我的问题：将https更改为http会引发此异常：

com.google.api.client.googleapis.json.GoogleJsonResponseException:403禁止{“代码”：403，“错误”：[{“域”：“全局”，“消息”：“执行此操作需要SSL”。，“原因”：“sslRequired”}]，“消息”：“执行此操作需要SSL。”}

03-18 12:21:21.642  30454-30477/huka.com.repli W/System.err﹕ javax.net.ssl.SSLHandshakeException: Handshake failed
03-18 12:21:21.642  30454-30477/huka.com.repli W/System.err﹕ at com.android.org.conscrypt.OpenSSLSocketImpl.startHandshake(OpenSSLSocketImpl.java:374)
03-18 12:21:21.642  30454-30477/huka.com.repli W/System.err﹕ at com.android.okhttp.Connection.upgradeToTls(Connection.java:197)
03-18 12:21:21.643  30454-30477/huka.com.repli W/System.err﹕ at com.android.okhttp.Connection.connect(Connection.java:151)
03-18 12:21:21.643  30454-30477/huka.com.repli W/System.err﹕ at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:276)
03-18 12:21:21.643  30454-30477/huka.com.repli W/System.err﹕ at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:211)
03-18 12:21:21.643  30454-30477/huka.com.repli W/System.err﹕ at com.android.okhttp.internal.http.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:373)
03-18 12:21:21.643  30454-30477/huka.com.repli W/System.err﹕ at com.android.okhttp.internal.http.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:106)
03-18 12:21:21.643  30454-30477/huka.com.repli W/System.err﹕ at com.android.okhttp.internal.http.HttpURLConnectionImpl.getOutputStream(HttpURLConnectionImpl.java:208)
03-18 12:21:21.643  30454-30477/huka.com.repli W/System.err﹕ at com.android.okhttp.internal.http.DelegatingHttpsURLConnection.getOutputStream(DelegatingHttpsURLConnection.java:218)
03-18 12:21:21.643  30454-30477/huka.com.repli W/System.err﹕ at com.android.okhttp.internal.http.HttpsURLConnectionImpl.getOutputStream(HttpsURLConnectionImpl.java:25)
03-18 12:21:21.643  30454-30477/huka.com.repli W/System.err﹕ at com.google.api.client.http.javanet.NetHttpRequest.execute(NetHttpRequest.java:77)
03-18 12:21:21.643  30454-30477/huka.com.repli W/System.err﹕ at com.google.api.client.http.HttpRequest.execute(HttpRequest.java:965)
03-18 12:21:21.643  30454-30477/huka.com.repli W/System.err﹕ at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.executeUnparsed(AbstractGoogleClientRequest.java:410)
03-18 12:21:21.643  30454-30477/huka.com.repli W/System.err﹕ at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.executeUnparsed(AbstractGoogleClientRequest.java:343)
03-18 12:21:21.643  30454-30477/huka.com.repli W/System.err﹕ at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.execute(AbstractGoogleClientRequest.java:460)
03-18 12:21:21.643  30454-30477/huka.com.repli W/System.err﹕ at gcm.GcmRegistrationAsyncTask.registerToService(GcmRegistrationAsyncTask.java:80)
03-18 12:21:21.643  30454-30477/huka.com.repli W/System.err﹕ at gcm.GcmRegistrationAsyncTask.doInBackground(GcmRegistrationAsyncTask.java:69)
03-18 12:21:21.643  30454-30477/huka.com.repli W/System.err﹕ at gcm.GcmRegistrationAsyncTask.doInBackground(GcmRegistrationAsyncTask.java:26)
03-18 12:21:21.643  30454-30477/huka.com.repli W/System.err﹕ at android.os.AsyncTask$2.call(AsyncTask.java:288)
03-18 12:21:21.643  30454-30477/huka.com.repli W/System.err﹕ at java.util.concurrent.FutureTask.run(FutureTask.java:237)
03-18 12:21:21.643  30454-30477/huka.com.repli W/System.err﹕ at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
03-18 12:21:21.643  30454-30477/huka.com.repli W/System.err﹕ at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
03-18 12:21:21.643  30454-30477/huka.com.repli W/System.err﹕ at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
03-18 12:21:21.643  30454-30477/huka.com.repli W/System.err﹕ at java.lang.Thread.run(Thread.java:818)
03-18 12:21:21.643  30454-30477/huka.com.repli W/System.err﹕ Caused by: javax.net.ssl.SSLProtocolException: SSL handshake aborted: ssl=0xaf724200: Failure in SSL library, usually a protocol error
03-18 12:21:21.643  30454-30477/huka.com.repli W/System.err﹕ error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol (external/openssl/ssl/s23_clnt.c:790 0xac490e61:0x00000000)
03-18 12:21:21.644  30454-30477/huka.com.repli W/System.err﹕ at com.android.org.conscrypt.NativeCrypto.SSL_do_handshake(Native Method)
03-18 12:21:21.644  30454-30477/huka.com.repli W/System.err﹕ at com.android.org.conscrypt.OpenSSLSocketImpl.startHandshake(OpenSSLSocketImpl.java:302)
03-18 12:21:21.644  30454-30477/huka.com.repli W/System.err﹕ ... 23 more