package com.example.url_get_post;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.io.PrintWriter;import java.net.MalformedURLException;import java.net.URL;import java.net.URLConnection;import java.util.List;import java.util.Map;import android.util.Log;public class GetPostUtil {/** * 向指定URL发送GET方法的请求 * @param url发送请求的URL * @param parmas请求参数，请求参数应该是name1=value1&name2=value2的形式 * @return URL所代表远程资源的响应 */public static String sendGet(String url, String parmas){String result = "";BufferedReader bufferedReader = null;String urlName = url + "?" + parmas;try {URL realUrl = new URL(urlName);//打开和URL之间的连接try {URLConnection urlConnection = realUrl.openConnection();/*设置通用请求属性*///告诉WEB服务器自己接受什么介质类型，*/* 表示任何类型，type/* 表示该类型下的所有子类型，type/sub-type。urlConnection.setRequestProperty("accept", "*/*");urlConnection.setRequestProperty("connection", "Keep-Alive");//浏览器表明自己的身份（是哪种浏览器）urlConnection.setRequestProperty("user-agent", "Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN; rv:1.8.1.14)");//建立实际连接urlConnection.connect();Log.e("contentType", ""+urlConnection.getContentType());Log.e("contentLength", ""+urlConnection.getContentLength());Log.e("contentEncoding", ""+urlConnection.getContentEncoding());Log.e("contentDate", ""+urlConnection.getDate());//获取所有相应头字段Map<String, List<String>> map = urlConnection.getHeaderFields();//遍历所有响应头字段for (String key:map.keySet()){Log.i("GET方式请求", ""+map.get(key));}//定义BufferReader输入流来读取URL的响应bufferedReader = new BufferedReader(new InputStreamReader(urlConnection.getInputStream()));String line;for (;(line = bufferedReader.readLine()) != null;){result += "\n" + line;}} catch (IOException e) {// TODO Auto-generated catch blockLog.e("GET方式请求", "发送GET请求异常"+e);e.printStackTrace();}} catch (MalformedURLException e) {// TODO Auto-generated catch blocke.printStackTrace();} finally {if (null != bufferedReader){try {bufferedReader.close();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}}}return result;}/** * 向指定URL发送POST方法的请求 * @param url发送请求的URL * @param parmas请求参数，请求参数应该是name1=value1&name2=value2的形式 * @return URL所代表远程资源的响应 */public static String sendPost(String url, String parmas){String result = "";PrintWriter printWriter = null;BufferedReader bufferedReader = null;try {URL realUrl = new URL(url);//打开和URL之间的连接try {URLConnection urlConnection = realUrl.openConnection();//设置通用请求属性urlConnection.setRequestProperty("accept", "*/*");urlConnection.setRequestProperty("connection", "Keep-Alive");urlConnection.setRequestProperty("user-agent", "Mozilla/4.0(compatible; MSIE 6.0; Windows NT 5.1; SV1)");//发送POST请求必须设置如下两行urlConnection.setDoOutput(true);urlConnection.setDoInput(true);//获取所有相应头字段Map<String, List<String>> map = urlConnection.getHeaderFields();//遍历所有响应头字段for (String key:map.keySet()){Log.i("POST方式请求", ""+map.get(key));}//获取URLConnection对象对应的输出流printWriter = new PrintWriter(urlConnection.getOutputStream());//发送请求参数printWriter.print(parmas);//flush输出流缓冲printWriter.flush();//定义BufferReader输入流来读取URL的响应bufferedReader = new BufferedReader(new InputStreamReader(urlConnection.getInputStream()));String line;for (;(line = bufferedReader.readLine()) != null;){result += "\n" + line;}} catch (IOException e) {// TODO Auto-generated catch blockLog.e("GET方式请求", "发送GET请求异常"+e);e.printStackTrace();}} catch (MalformedURLException e) {// TODO Auto-generated catch blocke.printStackTrace();} finally {if (null != bufferedReader){try {bufferedReader.close();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}}if (null != printWriter){printWriter.close();}}return result;}}MainActivity.java
，赚钱之道很多，但是找不到赚钱的种子，便成不了事业家。
