我之前从未使用过Jmeter。我一直在尝试使用Jmeter向Google Vision API发送HTTP请求 - 但它返回了FORBIDDEN（403）错误。我的请求和所需的响应是JSON格式
我附在下面：
a）HTTP请求
b）响应错误
除此之外，在HTTP Header Manager中我设置了：
Content-Type：application / json
附加请求有什么问题？
Request image..
Response error image
答案 0 :(得分：0)
根据Authenticating to the Cloud Vision API文章，您可能需要提供OAuth令牌，可以通过HTTP Header Manager完成，例如：
06-13 12:11:38.667 3890-3890/com.ire.blogbot E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.ire.blogbot, PID: 3890
java.lang.NullPointerException: Attempt to invoke virtual method 'void com.ire.blogbot.adapter.NewsAdapter.setOnItemClickListener(com.ire.blogbot.adapter.NewsAdapter$ClickListener)' on a null object reference
at com.ire.blogbot.fragments.TechFragment$NewsDataLoader.onLoadFinished(TechFragment.java:192)
at com.ire.blogbot.fragments.TechFragment$NewsDataLoader.onLoadFinished(TechFragment.java:131)
at android.support.v4.app.LoaderManagerImpl$LoaderInfo.callOnLoadFinished(LoaderManager.java:476)
at android.support.v4.app.LoaderManagerImpl$LoaderInfo.onLoadComplete(LoaderManager.java:444)
at android.support.v4.content.Loader.deliverResult(Loader.java:126)
at com.ire.blogbot.fragments.TechFragment$NewsDataLoader$1.deliverResult(TechFragment.java:164)
at com.ire.blogbot.fragments.TechFragment$NewsDataLoader$1.deliverResult(TechFragment.java:137)
at android.support.v4.content.AsyncTaskLoader.dispatchOnLoadComplete(AsyncTaskLoader.java:252)
at android.support.v4.content.AsyncTaskLoader$LoadTask.onPostExecute(AsyncTaskLoader.java:80)
at android.support.v4.content.ModernAsyncTask.finish(ModernAsyncTask.java:485)
at android.support.v4.content.ModernAsyncTask$InternalHandler.handleMessage(ModernAsyncTask.java:502)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6119)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776)
Authorization 有关在JMeter测试中与受OAuth保护的Web应用程序进行交互的详细信息，请参阅How to Run Performance Tests on OAuth Secured Apps with JMeter文章。