HttpGet和HttpPost

 1 package net.blogjava.mobile;
 2
 3 import java.net.HttpURLConnection;
 4 import java.util.ArrayList;
 5 import java.util.List;
 6
 7 import org.apache.http.HttpResponse;
 8 import org.apache.http.NameValuePair;
 9 import org.apache.http.client.entity.UrlEncodedFormEntity;
10 import org.apache.http.client.methods.HttpGet;
11 import org.apache.http.client.methods.HttpPost;
12 import org.apache.http.impl.client.DefaultHttpClient;
13 import org.apache.http.message.BasicNameValuePair;
14 import org.apache.http.protocol.HTTP;
15 import org.apache.http.util.EntityUtils;
16
17 import android.app.Activity;
18 import android.os.Bundle;
19 import android.view.View;
20 import android.view.View.OnClickListener;
21 import android.widget.Button;
22 import android.widget.EditText;
23 import android.widget.TextView;
24
25 public class Main extends Activity implements OnClickListener
26 {
27
28     @Override
29     public void onClick(View view)
30     {
31         String url = "http://169.254.103.188/querybooks/QueryServlet";
32         TextView tvQueryResult = (TextView) findViewById(R.id.tvQueryResult);
33         EditText etBookName = (EditText) findViewById(R.id.etBookName);
34         HttpResponse httpResponse = null;
35         try
36         {
37
38             switch (view.getId())
39             {
40                 case R.id.btnGetQuery:
41                     url += "?bookname=" + etBookName.getText().toString();
42                     HttpGet httpGet = new HttpGet(url);
43                     httpResponse = new DefaultHttpClient().execute(httpGet);
44                     if (httpResponse.getStatusLine().getStatusCode() == 200)
45                     {
46
47                         String result = EntityUtils.toString(httpResponse.getEntity(), HTTP.UTF_8);
48                         tvQueryResult.setText(result);
49                         System.out.println(result);
50                     }
51                     break;
52
53                 case R.id.btnPostQuery:
54                     HttpPost httpPost = new HttpPost(url);
55                     List<NameValuePair> params = new ArrayList<NameValuePair>();
56                     params.add(new BasicNameValuePair("bookname", etBookName
57                             .getText().toString()));
58                     httpPost.setEntity(new UrlEncodedFormEntity(params, HTTP.UTF_8));
59
60                     httpResponse = new DefaultHttpClient().execute(httpPost);
61                     if (httpResponse.getStatusLine().getStatusCode() == 200)
62                     {
63                         String result = EntityUtils.toString(httpResponse
64                                 .getEntity());
65                         tvQueryResult.setText(result.replaceAll("\r", ""));
66                     }
67                     break;
68             }
69         }
70         catch (Exception e)
71         {
72             tvQueryResult.setText(e.getMessage());
73         }
74
75     }
76
77     @Override
78     public void onCreate(Bundle savedInstanceState)
79     {
80         super.onCreate(savedInstanceState);
81         setContentView(R.layout.main);
82         Button btnGetQuery = (Button) findViewById(R.id.btnGetQuery);
83         Button btnPostQuery = (Button) findViewById(R.id.btnPostQuery);
84         btnGetQuery.setOnClickListener(this);
85         btnPostQuery.setOnClickListener(this);
86
87     }
88 }