HttpGet和HttpPost

时间：2023-03-08 17:51:37
 package net.blogjava.mobile;

 import java.net.HttpURLConnection;

 import java.util.ArrayList;

 import java.util.List;

 import org.apache.http.HttpResponse;

 import org.apache.http.NameValuePair;

 import org.apache.http.client.entity.UrlEncodedFormEntity;

 import org.apache.http.client.methods.HttpGet;

 import org.apache.http.client.methods.HttpPost;

 import org.apache.http.impl.client.DefaultHttpClient;

 import org.apache.http.message.BasicNameValuePair;

 import org.apache.http.protocol.HTTP;

 import org.apache.http.util.EntityUtils;

 import android.app.Activity;

 import android.os.Bundle;

 import android.view.View;

 import android.view.View.OnClickListener;

 import android.widget.Button;

 import android.widget.EditText;

 import android.widget.TextView;

 public class Main extends Activity implements OnClickListener

 {

     @Override

     public void onClick(View view)

     {

         String url = "http://169.254.103.188/querybooks/QueryServlet";

         TextView tvQueryResult = (TextView) findViewById(R.id.tvQueryResult);

         EditText etBookName = (EditText) findViewById(R.id.etBookName);

         HttpResponse httpResponse = null;

         try

         {

             switch (view.getId())

             {

                 case R.id.btnGetQuery:

                     url += "?bookname=" + etBookName.getText().toString();

                     HttpGet httpGet = new HttpGet(url);

                     httpResponse = new DefaultHttpClient().execute(httpGet);

                     if (httpResponse.getStatusLine().getStatusCode() == 200)

                     {

                         String result = EntityUtils.toString(httpResponse.getEntity(), HTTP.UTF_8);

                         tvQueryResult.setText(result);

                         System.out.println(result);

                     }

                     break;

                 case R.id.btnPostQuery:

                     HttpPost httpPost = new HttpPost(url);

                     List<NameValuePair> params = new ArrayList<NameValuePair>();

                     params.add(new BasicNameValuePair("bookname", etBookName

                             .getText().toString()));

                     httpPost.setEntity(new UrlEncodedFormEntity(params, HTTP.UTF_8));

                     httpResponse = new DefaultHttpClient().execute(httpPost);

                     if (httpResponse.getStatusLine().getStatusCode() == 200)

                     {

                         String result = EntityUtils.toString(httpResponse

                                 .getEntity());

                         tvQueryResult.setText(result.replaceAll("\r", ""));

                     }

                     break;

             }

         }

         catch (Exception e)

         {

             tvQueryResult.setText(e.getMessage());

         }

     }

     @Override

     public void onCreate(Bundle savedInstanceState)

     {

         super.onCreate(savedInstanceState);

         setContentView(R.layout.main);

         Button btnGetQuery = (Button) findViewById(R.id.btnGetQuery);

         Button btnPostQuery = (Button) findViewById(R.id.btnPostQuery);

         btnGetQuery.setOnClickListener(this);

         btnPostQuery.setOnClickListener(this);

     }

 }

上传文件时，可以使用HttpAnalyzer来捕获HTTP请求信息：上传文档新建文本文档 (3).txt过程：

Request Headers    Value

(Request-Line)    POST /upload/UploadServlet HTTP/1.1

Accept    text/html, application/xhtml+xml, */*

Referer    http://localhost/upload/upload.jsp

Accept-Language    zh-CN

User-Agent    Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; WOW64; Trident/6.0)

Content-Type    multipart/form-data; boundary=---------------------------7dea05100618

Accept-Encoding    gzip, deflate

Host    localhost

Content-Length    239

DNT    1

Connection    Keep-Alive

Cache-Control    no-cache

Cookie    JSESSIONID=C55149A1C7C5EEFE0A67D4DA2183E8BF
Response Headers    Value

(Status-Line)    HTTP/1.1 200 OK

Server    Apache-Coyote/1.1

Content-Type    text/html;charset=UTF-8

Content-Length    21

Date    Sun, 14 Dec 2014 07:00:05 GMT

stream标签页信息：

744 bytes sent to :0

POST /upload/UploadServlet HTTP/1.1

Accept: text/html, application/xhtml+xml, */*

Referer: http://localhost/upload/upload.jsp

Accept-Language: zh-CN

User-Agent: Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; WOW64; Trident/6.0)

Content-Type: multipart/form-data; boundary=---------------------------7dea05100618

Accept-Encoding: gzip, deflate

Host: localhost

Content-Length: 239

DNT: 1

Connection: Keep-Alive

Cache-Control: no-cache

Cookie: JSESSIONID=C55149A1C7C5EEFE0A67D4DA2183E8BF

-----------------------------7dea05100618

Content-Disposition: form-data; name="file"; filename="C:\Users\Administrator\Desktop\鏂板缓鏂囨湰鏂囨。 (3).txt"

Content-Type: text/plain

123abc

-----------------------------7dea05100618--

163 bytes received by :0

HTTP/1.1 200 OK

Server: Apache-Coyote/1.1

Content-Type: text/html;charset=UTF-8

Content-Length: 21

Date: Sun, 14 Dec 2014 07:00:05 GMT

鏂囦欢涓婁紶鎴愬姛!

相关文章