HttpClient接口Get方式

import org.apache.http.HttpResponse;import org.apache.http.HttpStatus;import org.apache.http.client.HttpClient;import org.apache.http.client.methods.HttpGet;import org.apache.http.impl.client.DefaultHttpClient;import org.apache.http.util.EntityUtils;import android.app.Activity;import android.os.Bundle;import android.util.Log;import android.widget.TextView;public class mainActivity extends Activity {    TextView tv;    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        tv = (TextView) findViewById(R.id.tv1);        // HttpGet连接对象        HttpGet httpRequest = new HttpGet("http://10.0.2.2:8080/dem/");        try {            // 取得HttpClient对象            HttpClient httpclient = new DefaultHttpClient();            // 请求HttpClient取得HttpResponse            HttpResponse httpResponse = httpclient.execute(httpRequest);            // 请求成功            if(httpResponse.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {                String strResult = EntityUtils.toString(httpResponse                        .getEntity());                tv.setText(strResult);            }            else {                tv.setText("请求失败");            }        }        catch(Exception e) {            Log.e("", e.getMessage());        }    }}