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使用twilio发送短信：未找到API包'urlfetch'或调用'Fetch（）'

[英]Sending sms with twilio: The API package 'urlfetch' or call 'Fetch()' was not found

 原文  2016-04-01 19:25:31  6   2    java/ google-app-engine/ sms/ twilio

问题描述

I'm running this code: 我正在运行此代码：

ACCOUNT_SID, AUTH_TOKEN = are from my account ACCOUNT_SID, AUTH_TOKEN =来自我的帐户 

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

    TwilioRestClient client = new TwilioRestClient(ACCOUNT_SID, AUTH_TOKEN);

    Account account = client.getAccount();

    MessageFactory messageFactory = account.getMessageFactory();
    List<NameValuePair> params = new ArrayList<NameValuePair>();
    params.add(new BasicNameValuePair("To", ...my number...));
    params.add(new BasicNameValuePair("From", ...my twilio number..));
    params.add(new BasicNameValuePair("Body", "Where's Wallace?"));
    Message sms = messageFactory.create(params);

    String a = "1";
}

but get this exception when running messageFactory.create 但在运行messageFactory.create时会遇到此异常

I have run: 我跑了： 

mvn appengine:devserver

any idea how to fix this? 任何想法如何解决这个问题？ 

java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:483)
    at com.twilio.sdk.AppEngineClientConnection.flush(AppEngineClientConnection.java:197)
    at org.apache.http.protocol.HttpRequestExecutor.doSendRequest(HttpRequestExecutor.java:258)
    at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:123)
    at org.apache.http.impl.client.DefaultRequestDirector.tryExecute(DefaultRequestDirector.java:645)
    at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:464)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:820)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:754)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:732)
    at com.twilio.sdk.TwilioRestClient.request(TwilioRestClient.java:410)
    at com.twilio.sdk.TwilioRestClient.safeRequest(TwilioRestClient.java:581)
    at com.twilio.sdk.resource.list.MessageList.create(MessageList.java:70)
    at com.waze.beacon.inline.server.services.SmsSenderImp.main(SmsSenderImp.java:33)
Caused by: com.google.apphosting.api.ApiProxy$CallNotFoundException: The API package 'urlfetch' or call 'Fetch()' was not found.
    at com.google.apphosting.api.ApiProxy.makeSyncCall(ApiProxy.java:111)
    at com.google.appengine.api.urlfetch.URLFetchServiceImpl.fetch(URLFetchServiceImpl.java:38)
    ... 16 more
Apr 01, 2016 10:07:51 PM org.apache.http.impl.client.DefaultRequestDirector tryExecute
INFO: I/O exception (java.io.IOException) caught when processing request: Error flushing content in Google App Engine fetch
Apr 01, 2016 10:07:51 PM org.apache.http.impl.client.DefaultRequestDirector tryExecute
INFO: Retrying request
java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:483)
    at com.twilio.sdk.AppEngineClientConnection.flush(AppEngineClientConnection.java:197)
    at org.apache.http.protocol.HttpRequestExecutor.doSendRequest(HttpRequestExecutor.java:258)
    at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:123)
    at org.apache.http.impl.client.DefaultRequestDirector.tryExecute(DefaultRequestDirector.java:645)
    at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:464)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:820)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:754)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:732)
    at com.twilio.sdk.TwilioRestClient.request(TwilioRestClient.java:410)
    at com.twilio.sdk.TwilioRestClient.safeRequest(TwilioRestClient.java:581)
    at com.twilio.sdk.resource.list.MessageList.create(MessageList.java:70)
    at com.waze.beacon.inline.server.services.SmsSenderImp.main(SmsSenderImp.java:33)
Caused by: com.google.apphosting.api.ApiProxy$CallNotFoundException: The API package 'urlfetch' or call 'Fetch()' was not found.
    at com.google.apphosting.api.ApiProxy.makeSyncCall(ApiProxy.java:111)
    at com.google.appengine.api.urlfetch.URLFetchServiceImpl.fetch(URLFetchServiceImpl.java:38)
    ... 16 more
Apr 01, 2016 10:07:51 PM org.apache.http.impl.client.DefaultRequestDirector tryExecute
INFO: I/O exception (java.io.IOException) caught when processing request: Error flushing content in Google App Engine fetch
Apr 01, 2016 10:07:51 PM org.apache.http.impl.client.DefaultRequestDirector tryExecute
INFO: Retrying request
java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:483)
    at com.twilio.sdk.AppEngineClientConnection.flush(AppEngineClientConnection.java:197)
    at org.apache.http.protocol.HttpRequestExecutor.doSendRequest(HttpRequestExecutor.java:258)
    at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:123)
    at org.apache.http.impl.client.DefaultRequestDirector.tryExecute(DefaultRequestDirector.java:645)
    at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:464)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:820)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:754)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:732)
    at com.twilio.sdk.TwilioRestClient.request(TwilioRestClient.java:410)
    at com.twilio.sdk.TwilioRestClient.safeRequest(TwilioRestClient.java:581)
    at com.twilio.sdk.resource.list.MessageList.create(MessageList.java:70)
    at com.waze.beacon.inline.server.services.SmsSenderImp.main(SmsSenderImp.java:33)
Caused by: com.google.apphosting.api.ApiProxy$CallNotFoundException: The API package 'urlfetch' or call 'Fetch()' was not found.
    at com.google.apphosting.api.ApiProxy.makeSyncCall(ApiProxy.java:111)
    at com.google.appengine.api.urlfetch.URLFetchServiceImpl.fetch(URLFetchServiceImpl.java:38)
    ... 16 more
Apr 01, 2016 10:07:51 PM org.apache.http.impl.client.DefaultRequestDirector tryExecute
INFO: I/O exception (java.io.IOException) caught when processing request: Error flushing content in Google App Engine fetch
Apr 01, 2016 10:07:51 PM org.apache.http.impl.client.DefaultRequestDirector tryExecute
INFO: Retrying request
java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:483)
    at com.twilio.sdk.AppEngineClientConnection.flush(AppEngineClientConnection.java:197)
    at org.apache.http.protocol.HttpRequestExecutor.doSendRequest(HttpRequestExecutor.java:258)
    at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:123)
    at org.apache.http.impl.client.DefaultRequestDirector.tryExecute(DefaultRequestDirector.java:645)
    at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:464)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:820)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:754)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:732)
    at com.twilio.sdk.TwilioRestClient.request(TwilioRestClient.java:410)
    at com.twilio.sdk.TwilioRestClient.safeRequest(TwilioRestClient.java:581)
    at com.twilio.sdk.resource.list.MessageList.create(MessageList.java:70)
    at com.waze.beacon.inline.server.services.SmsSenderImp.main(SmsSenderImp.java:33)
Caused by: com.google.apphosting.api.ApiProxy$CallNotFoundException: The API package 'urlfetch' or call 'Fetch()' was not found.
    at com.google.apphosting.api.ApiProxy.makeSyncCall(ApiProxy.java:111)
    at com.google.appengine.api.urlfetch.URLFetchServiceImpl.fetch(URLFetchServiceImpl.java:38)
    ... 16 more
Exception in thread "main" java.lang.RuntimeException: java.io.IOException: Error flushing content in Google App Engine fetch
    at com.twilio.sdk.TwilioRestClient.request(TwilioRestClient.java:437)
    at com.twilio.sdk.TwilioRestClient.safeRequest(TwilioRestClient.java:581)
    at com.twilio.sdk.resource.list.MessageList.create(MessageList.java:70)
    at com.waze.beacon.inline.server.services.SmsSenderImp.main(SmsSenderImp.java:33)
Caused by: java.io.IOException: Error flushing content in Google App Engine fetch
    at com.twilio.sdk.AppEngineClientConnection.flush(AppEngineClientConnection.java:201)
    at org.apache.http.protocol.HttpRequestExecutor.doSendRequest(HttpRequestExecutor.java:258)
    at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:123)
    at org.apache.http.impl.client.DefaultRequestDirector.tryExecute(DefaultRequestDirector.java:645)
    at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:464)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:820)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:754)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:732)
    at com.twilio.sdk.TwilioRestClient.request(TwilioRestClient.java:410)
    ... 3 more
Disconnected from the target VM, address: '127.0.0.1:61151', transport: 'socket'

Process finished with exit code 1

2 个解决方案

解决方案1
 2 已采纳  2016-04-04 18:21:49

There's this question here that seems to be similar: getting strange exception trying to implement asynchronous http in google app engine for java 这里有一个似乎相似的问题： 尝试在google app engine for java中实现异步http时遇到奇怪的异常

According to the accepted answer by @Antony, the issue is that these APIs are not available in the local dev server, but they will be when deployed in Google App Engine. 根据@Antony接受的答案，问题是这些API在本地开发服务器中不可用，但它们将在Google App Engine中部署。

解决方案2
 1  2016-04-04 23:25:48

Megan from Twilio here. 来自Twilio的梅根在这里。

I'm not very familiar with App Engine but your app is looking for a specific implementation of URLFetchService and cannot find it. 我对App Engine不太熟悉，但您的应用正在寻找URLFetchService的特定实现，但无法找到它。

There are a few issues regarding the use of Twilio-Java with App Engine on GitHub that may be relevant. 关于在GitHub上使用Twilio-Java和App Engine可能有一些问题 。

Example of expected class: 预期类的示例： 

Class.forName("com.google.appengine.api.urlfetch.HTTPRequest");

Let me know if this helps at all. 如果这有帮助，请告诉我。

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