android http下载不报错但下载不了东西

[winnerty123]

package com.example.asycntaskdemo2;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;

import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;

import android.app.Activity;
import android.app.ProgressDialog;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;

public class MainActivity extends Activity {
Button button;
ImageView imageView;
ProgressDialog progressDialog;
String url="http://img2.imgtn.bdimg.com/it/u=145145970,330316436&fm=11&gp=0.jpg";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button=(Button)findViewById(R.id.button1);
imageView=(ImageView)findViewById(R.id.imageView1);
progressDialog=new ProgressDialog(MainActivity.this);
progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
progressDialog.setTitle("提示信息");
progressDialog.setMessage("加载中,请稍后.....");
button.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
new MyTask().execute(url);
System.out.print("111");
}
});
}
public class MyTask extends AsyncTask<String, Integer, Bitmap>{

@Override
protected Bitmap doInBackground(String... arg0) {
// TODO Auto-generated method stub
Bitmap bitmap = null;
HttpClient httpClient=new DefaultHttpClient();
InputStream inputStream=null;
ByteArrayOutputStream outputStream=new ByteArrayOutputStream();
HttpGet httpGet=new HttpGet(arg0[0]);
try {
HttpResponse httpResponse=httpClient.execute(httpGet);
if(httpResponse.getStatusLine().getStatusCode()==200){
System.out.print(true);
inputStream=httpResponse.getEntity().getContent();
long length=httpResponse.getEntity().getContentLength();
int len=0;
int total_length=0;
byte[] data=new byte[1024];
while((len=inputStream.read(data))!=-1){
total_length+=len;
int values=(int)((total_length/(float)length)*100);
publishProgress(values);
outputStream.write(data, 0, len);
}
byte[] text=outputStream.toByteArray();
bitmap=BitmapFactory.decodeByteArray(text, 0, text.length);}
} catch (ClientProtocolException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}finally{
if(inputStream!=null){
try {
inputStream.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
return bitmap;
}
@Override
protected void onPostExecute(Bitmap result) {
// TODO Auto-generated method stub
super.onPostExecute(result);
progressDialog.dismiss();
imageView.setImageBitmap(result);
}
@Override
protected void onPreExecute() {
// TODO Auto-generated method stub
super.onPreExecute();
progressDialog.show();
}
@Override
protected void onProgressUpdate(Integer... values) {
// TODO Auto-generated method stub
super.onProgressUpdate(values);
progressDialog.setProgress(values[0]);
}
}
}

[设计失]

报错信息贴出来。。。

[h1324694009]

输出流没用关闭啊！