大神来帮我看看把

[xiaolv0]

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());
}

[AMinfo]

你都没有定义is这个对象，当然就出错了。

[xiaolv0]

我上面一个try定义了is了，下面就调用不了了吗？

[AMinfo]

将2个try合并成一个，例如

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());
   }

[AMinfo]

或者将is在try外部定义，这样2个try都可以用。

InputStream is;
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();
   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());
   }