Java 从Android应用程序多次向URL发送请求的最佳方式是什么？

我有一个应用程序，当位置发生变化时，需要将当前用户位置发送到远程URL。我使用以下代码调用带有一些参数的url。但是下面的代码只工作一次，当我不能第二次什么都不发生时。我在服务器日志上看到一个请求，然后没有收到请求

public String sendRequest(String url){
  InputStream content = null;
      try {
        HttpResponse response = httpclient.execute(new HttpGet(url));
        response.setHeader("Cache-Control", "no-cache");
        content = response.getEntity().getContent();
        content.close();
      } catch (Exception e) {
        try {
            content.close();
        } catch (IOException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        }


      }
        return content;
}

• 向url发送多个请求的最佳方式是什么
• 为什么我不能使用上述代码发送多个请求

注意：我正在使用模拟器并手动发送位置

这是我第二次尝试调用该方法时的错误日志

---

您可能遇到缓存问题。Android在你的请求中看不到任何区别，你很可能是在非常接近地请求它

添加HTTP标头：

---

缓存控制：无缓存

您在清单中是否具有所需的android.permission.INTERNET权限？是的，否则，我无法发送第一个请求。如果有，您是否可以显示打印的堆栈跟踪？我添加了响应。setHeader（“缓存控制”，“无缓存”）；但是不工作HttpGet getter=newhttpget（url）；getter.setHeader（“缓存控制”，“无缓存”）；//作品

03-30 16:48:15.205: E/ActivityThread(645): Service com.android.exchange.ExchangeService has leaked ServiceConnection com.android.emailcommon.service.ServiceProxy$ProxyConnection@40ceef60 that was originally bound here
03-30 16:48:15.205: E/ActivityThread(645): android.app.ServiceConnectionLeaked: Service com.android.exchange.ExchangeService has leaked ServiceConnection com.android.emailcommon.service.ServiceProxy$ProxyConnection@40ceef60 that was originally bound here
03-30 16:48:15.205: E/ActivityThread(645):  at android.app.LoadedApk$ServiceDispatcher.<init>(LoadedApk.java:969)
03-30 16:48:15.205: E/ActivityThread(645):  at android.app.LoadedApk.getServiceDispatcher(LoadedApk.java:863)
03-30 16:48:15.205: E/ActivityThread(645):  at android.app.ContextImpl.bindService(ContextImpl.java:1418)
03-30 16:48:15.205: E/ActivityThread(645):  at android.app.ContextImpl.bindService(ContextImpl.java:1407)
03-30 16:48:15.205: E/ActivityThread(645):  at android.content.ContextWrapper.bindService(ContextWrapper.java:473)
03-30 16:48:15.205: E/ActivityThread(645):  at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:157)
03-30 16:48:15.205: E/ActivityThread(645):  at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:145)
03-30 16:48:15.205: E/ActivityThread(645):  at com.android.emailcommon.service.AccountServiceProxy.getDeviceId(AccountServiceProxy.java:116)
03-30 16:48:15.205: E/ActivityThread(645):  at com.android.exchange.ExchangeService.getDeviceId(ExchangeService.java:1249)
03-30 16:48:15.205: E/ActivityThread(645):  at com.android.exchange.ExchangeService$7.run(ExchangeService.java:1856)
03-30 16:48:15.205: E/ActivityThread(645):  at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:551)
03-30 16:48:15.205: E/ActivityThread(645):  at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:549)
03-30 16:48:15.205: E/ActivityThread(645):  at android.os.AsyncTask$2.call(AsyncTask.java:287)
03-30 16:48:15.205: E/ActivityThread(645):  at java.util.concurrent.FutureTask.run(FutureTask.java:234)
03-30 16:48:15.205: E/ActivityThread(645):  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
03-30 16:48:15.205: E/ActivityThread(645):  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
03-30 16:48:15.205: E/ActivityThread(645):  at java.lang.Thread.run(Thread.java:856)
03-30 16:48:15.225: E/StrictMode(645): null
03-30 16:48:15.225: E/StrictMode(645): android.app.ServiceConnectionLeaked: Service com.android.exchange.ExchangeService has leaked ServiceConnection com.android.emailcommon.service.ServiceProxy$ProxyConnection@40ceef60 that was originally bound here
03-30 16:48:15.225: E/StrictMode(645):  at android.app.LoadedApk$ServiceDispatcher.<init>(LoadedApk.java:969)
03-30 16:48:15.225: E/StrictMode(645):  at android.app.LoadedApk.getServiceDispatcher(LoadedApk.java:863)
03-30 16:48:15.225: E/StrictMode(645):  at android.app.ContextImpl.bindService(ContextImpl.java:1418)
03-30 16:48:15.225: E/StrictMode(645):  at android.app.ContextImpl.bindService(ContextImpl.java:1407)
03-30 16:48:15.225: E/StrictMode(645):  at android.content.ContextWrapper.bindService(ContextWrapper.java:473)
03-30 16:48:15.225: E/StrictMode(645):  at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:157)
03-30 16:48:15.225: E/StrictMode(645):  at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:145)
03-30 16:48:15.225: E/StrictMode(645):  at com.android.emailcommon.service.AccountServiceProxy.getDeviceId(AccountServiceProxy.java:116)
03-30 16:48:15.225: E/StrictMode(645):  at com.android.exchange.ExchangeService.getDeviceId(ExchangeService.java:1249)
03-30 16:48:15.225: E/StrictMode(645):  at com.android.exchange.ExchangeService$7.run(ExchangeService.java:1856)
03-30 16:48:15.225: E/StrictMode(645):  at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:551)
03-30 16:48:15.225: E/StrictMode(645):  at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:549)
03-30 16:48:15.225: E/StrictMode(645):  at android.os.AsyncTask$2.call(AsyncTask.java:287)
03-30 16:48:15.225: E/StrictMode(645):  at java.util.concurrent.FutureTask.run(FutureTask.java:234)
03-30 16:48:15.225: E/StrictMode(645):  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
03-30 16:48:15.225: E/StrictMode(645):  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
03-30 16:48:15.225: E/StrictMode(645):  at java.lang.Thread.run(Thread.java:856)
03-30 16:48:15.225: W/ActivityManager(275): Unbind failed: could not find connection for android.os.BinderProxy@4100e3e8
03-30 16:48:15.246: E/ActivityThread(645): Service com.android.exchange.ExchangeService has leaked ServiceConnection com.android.emailcommon.service.ServiceProxy$ProxyConnection@40d2cc28 that was originally bound here
03-30 16:48:15.246: E/ActivityThread(645): android.app.ServiceConnectionLeaked: Service com.android.exchange.ExchangeService has leaked ServiceConnection com.android.emailcommon.service.ServiceProxy$ProxyConnection@40d2cc28 that was originally bound here
03-30 16:48:15.246: E/ActivityThread(645):  at android.app.LoadedApk$ServiceDispatcher.<init>(LoadedApk.java:969)
03-30 16:48:15.246: E/ActivityThread(645):  at android.app.LoadedApk.getServiceDispatcher(LoadedApk.java:863)
03-30 16:48:15.246: E/ActivityThread(645):  at android.app.ContextImpl.bindService(ContextImpl.java:1418)
03-30 16:48:15.246: E/ActivityThread(645):  at android.app.ContextImpl.bindService(ContextImpl.java:1407)
03-30 16:48:15.246: E/ActivityThread(645):  at android.content.ContextWrapper.bindService(ContextWrapper.java:473)
03-30 16:48:15.246: E/ActivityThread(645):  at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:157)
03-30 16:48:15.246: E/ActivityThread(645):  at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:145)
03-30 16:48:15.246: E/ActivityThread(645):  at com.android.emailcommon.service.ServiceProxy.test(ServiceProxy.java:191)
03-30 16:48:15.246: E/ActivityThread(645):  at com.android.exchange.ExchangeService$7.run(ExchangeService.java:1850)
03-30 16:48:15.246: E/ActivityThread(645):  at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:551)
03-30 16:48:15.246: E/ActivityThread(645):  at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:549)
03-30 16:48:15.246: E/ActivityThread(645):  at android.os.AsyncTask$2.call(AsyncTask.java:287)
03-30 16:48:15.246: E/ActivityThread(645):  at java.util.concurrent.FutureTask.run(FutureTask.java:234)
03-30 16:48:15.246: E/ActivityThread(645):  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
03-30 16:48:15.246: E/ActivityThread(645):  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
03-30 16:48:15.246: E/ActivityThread(645):  at java.lang.Thread.run(Thread.java:856)
03-30 16:48:15.265: E/StrictMode(645): null
03-30 16:48:15.265: E/StrictMode(645): android.app.ServiceConnectionLeaked: Service com.android.exchange.ExchangeService has leaked ServiceConnection com.android.emailcommon.service.ServiceProxy$ProxyConnection@40d2cc28 that was originally bound here
03-30 16:48:15.265: E/StrictMode(645):  at android.app.LoadedApk$ServiceDispatcher.<init>(LoadedApk.java:969)
03-30 16:48:15.265: E/StrictMode(645):  at android.app.LoadedApk.getServiceDispatcher(LoadedApk.java:863)
03-30 16:48:15.265: E/StrictMode(645):  at android.app.ContextImpl.bindService(ContextImpl.java:1418)
03-30 16:48:15.265: E/StrictMode(645):  at android.app.ContextImpl.bindService(ContextImpl.java:1407)
03-30 16:48:15.265: E/StrictMode(645):  at android.content.ContextWrapper.bindService(ContextWrapper.java:473)
03-30 16:48:15.265: E/StrictMode(645):  at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:157)
03-30 16:48:15.265: E/StrictMode(645):  at com.android.emailcommon.service.ServiceProxy.setTask(ServiceProxy.java:145)
03-30 16:48:15.265: E/StrictMode(645):  at com.android.emailcommon.service.ServiceProxy.test(ServiceProxy.java:191)
03-30 16:48:15.265: E/StrictMode(645):  at com.android.exchange.ExchangeService$7.run(ExchangeService.java:1850)
03-30 16:48:15.265: E/StrictMode(645):  at com.android.emailcommon.utility.Utility$2.doInBackground(Utility.java:551)

HttpGet getter =  new HttpGet(url);
getter.setHeader("Cache-Control", "no-cache");