android网络编程之——客户端上传信息的代码

添加Java 发送http请求的代码。

package com.my.hello;import java.io.IOException;import java.io.OutputStream;import java.io.UnsupportedEncodingException;import java.net.HttpURLConnection;import java.net.MalformedURLException;import java.net.URL;import java.net.URLEncoder;import java.util.HashMap;import java.util.Map;import android.content.IntentSender.SendIntentException;public class ServiceSubmit {public static boolean submitGet(String s1, String s2, String url) throws IOException{Map<String,String> params = new HashMap<String,String>() ;params.put("name", s1) ;params.put("age", s2) ;return sendGetQuest(url,params, "UTF-8") ;}public static boolean submitPost(String s1, String s2, String url) throws IOException{Map<String,String> params = new HashMap<String,String>() ;params.put("name", s1) ;params.put("age", s2) ;return sendPostQuest(url,params, "UTF-8") ;}public static boolean sendXMLQuest(String xml, String url) throws IOException{byte[] data = xml.getBytes() ;URL path = new URL(url) ;HttpURLConnection conn = (HttpURLConnection) path.openConnection() ;conn.setRequestMethod("POST") ;conn.setDoOutput(true);conn.setConnectTimeout(5 * 1000);conn.setRequestProperty("Content-Type", "text/xml");conn.setRequestProperty("Content-Length", String.valueOf(data.length));return false;}private static boolean sendGetQuest(String url, Map<String, String> params,String encoding) throws IOException {StringBuilder sb = new StringBuilder(url) ;if(params != null && !params.isEmpty()){sb.append("?") ;for(Map.Entry<String, String> entry:params.entrySet()){sb.append(entry.getKey()).append("=") ;sb.append(URLEncoder.encode(entry.getValue(),encoding)) ;sb.append("&") ;}sb.deleteCharAt(sb.length()-1) ;}HttpURLConnection conn = (HttpURLConnection) new URL(sb.toString()).openConnection() ;conn.setConnectTimeout(5000);conn.setRequestMethod("GET");if(conn.getResponseCode() == 200){return true ;}return false;}private static boolean sendPostQuest(String url, Map<String, String> params,String encoding) throws IOException {StringBuilder sb = new StringBuilder() ;if(params != null && !params.isEmpty()){for(Map.Entry<String, String> entry:params.entrySet()){sb.append(entry.getKey()).append("=") ;sb.append(URLEncoder.encode(entry.getValue(),encoding)) ;sb.append("&") ;}sb.deleteCharAt(sb.length()-1) ;}byte[] data = sb.toString().getBytes() ;HttpURLConnection conn = (HttpURLConnection) new URL(url).openConnection() ;conn.setConnectTimeout(5000);conn.setRequestMethod("POST");conn.setDoOutput(true); //允许对外传输数据conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");conn.setRequestProperty("Content-Length", data.length + "");OutputStream os = conn.getOutputStream() ;os.write(data);os.flush(); if(conn.getResponseCode() == 200){return true ;}return false;}}

调用方法如下：

public void submitPostServer(String s1,String s2, String url) throws IOException{boolean result = false ;result = ServiceSubmit.submitPost(s1,s2, url) ;if(result){Toast.makeText(this, "this is ok,", 1).show(); }else{Toast.makeText(this, "this is no ok,", 1).show(); }}

case R.id.bt_submit:String url_one = "http://172.27.251.31:8081/TestWeb/GetMethod" ;String s1 = et_submit_1.getText().toString() ;String s2 = et_submit_2.getText().toString() ;try {submitPostServer(s1, s2, url_one);} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}