大神来帮小弟我看看把

大神来帮我看看把
为什么第二个try的BufferedReader reader=new BufferedReader(new InputStreamReader(is,"iso-8859-1"),8);
这句和is.close();这句话会出错呢
try{
  HttpClient httpclient=new DefaultHttpClient();
  HttpPost httppost=new HttpPost("http://110.86.69.250/getAllPeopleBornAfter.php");
  httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
  HttpResponse response =httpclient.execute(httppost);
  HttpEntity entity=response.getEntity();
  InputStream is=entity.getContent();
  }catch(Exception e){
  Log.e("log_tag", "Error in http connection" + e.toString());
  }
  try{
BufferedReader reader=new BufferedReader(new InputStreamReader(is,"iso-8859-1"),8);
  StringBuilder sb=new StringBuilder();
  String line =null;
  while((line=reader.readLine())!=null){
  sb.append(line+"\n");
  }
  is.close();
  result=sb.toString();
  }catch(Exception e){
  Log.e("log_tag","Error converting result" + e.toString());
  }

------解决方案--------------------
将2个try合并成一个，例如

Java code

try{   HttpClient httpclient=new DefaultHttpClient();   HttpPost httppost=new HttpPost("http://110.86.69.250/getAllPeopleBornAfter.php");   httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));   HttpResponse response =httpclient.execute(httppost);   HttpEntity entity=response.getEntity();   InputStream is=entity.getContent(); BufferedReader reader=new BufferedReader(new InputStreamReader(is,"iso-8859-1"),8);   StringBuilder sb=new StringBuilder();   String line =null;   while((line=reader.readLine())!=null){   sb.append(line+"\n");   }   is.close();   result=sb.toString();      }catch(Exception e){   Log.e("log_tag", "Error in http connection" + e.toString());   }