</application><uses-permission android:name="android.permission.INTERNET"> </uses-permission> </manifest>

public static String get(String urlString)  {                /*try{            HttpGet request = new HttpGet(urlString);            String result=getHttpClient().execute(request,new BasicResponseHandler());            return result;        }catch(IOException e){            throw e;        }*/                String result="";        BufferedReader in=null;        try {            HttpClient client = new DefaultHttpClient();            HttpGet request=new HttpGet(urlString);            HttpResponse response = client.execute(request);                        in=new BufferedReader(new InputStreamReader(response.getEntity().getContent()));            StringBuffer sb=new StringBuffer("");            String line="";            String NL=System.getProperty("line.separator");           // String NL="";            while((line=in.readLine())!=null){                sb.append(line+NL);            }            in.close();            result=sb.toString();            result=JsonFilter(result);        }         catch (Exception e) {            e.printStackTrace();        }        finally{            if(in!=null){                try{                    in.close();                }catch(IOException e){                    e.printStackTrace();                }            }        }        return result;            }        /*     * 对json字符串进行过滤,防止乱码和黑框     */    public static String JsonFilter(String jsonstr){        return jsonstr.substring(jsonstr.indexOf("{")).replace("\r\n","\n");     }

/*****************************************************主要是点击事件*********************************************/         @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);                  final Button button1 = (Button) findViewById(R.id.button1);//final获得句柄 获得句柄          final   TextView textView =  (TextView) findViewById(R.id.textView1);                                  button1.setOnClickListener(new OnClickListener()          {              public void onClick(View v)             {                                 textView.setText(get("http://www.weather.com.cn/data/cityinfo/101010100.html"));                                      }                                          });     }