Http请求get和post调用

package com.gomecar.index.common.utils;import org.apache.http.HttpEntity;import org.apache.http.HttpResponse;import org.apache.http.client.entity.UrlEncodedFormEntity;import org.apache.http.client.methods.HttpPost;import org.apache.http.impl.client.DefaultHttpClient;import org.apache.http.message.BasicNameValuePair;import org.apache.http.util.EntityUtils;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.io.PrintWriter;import java.net.URL;import java.net.URLConnection;import java.nio.charset.Charset;import java.util.*;public class HttpUtils { ???/** ????* 向指定URL发送GET方法的请求 ????* ?????* @param url ????* ???????????发送请求的URL ????* @param param ????* ???????????请求参数，请求参数应该是 name1=value1&name2=value2 的形式。 ????* @param timeout 连接超时时间 /单位毫秒 ????* @return URL 所代表远程资源的响应结果 ????*/ ???public static String sendGet(String url, String param,int timeout) { ???????StringBuffer resultBuf = new StringBuffer(); ???????BufferedReader in = null; ???????try { ???????????String urlNameString = url + "?" + param; ???????????URL realUrl = new URL(urlNameString); ???????????// 打开和URL之间的连接 ???????????URLConnection connection = realUrl.openConnection(); ???????????// 设置通用的请求属性 ???????????// connection.setRequestProperty("accept", "*/*"); ???????????// connection.setRequestProperty("connection", "Keep-Alive"); ???????????connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded"); ???????????connection.setConnectTimeout(timeout); ???????????// 建立实际的连接 ???????????connection.connect(); ???????????// 获取所有响应头字段 ???????????// Map<String, List<String>> map = connection.getHeaderFields(); ???????????// 遍历所有的响应头字段 ???????????// for (String key : map.keySet()) { ???????????// System.out.println(key + "--->" + map.get(key)); ???????????// } ???????????// 定义 BufferedReader输入流来读取URL的响应 ???????????in = new BufferedReader(new InputStreamReader(connection.getInputStream(), Charset.forName("UTF-8"))); ???????????String line; ???????????while ((line = in.readLine()) != null) { ???????????????resultBuf.append(line); ???????????} ???????} catch (Exception e) { ???????????// System.out.println("发送GET请求出现异常！" + e); ???????????e.printStackTrace(); ???????} ???????// 使用finally块来关闭输入流 ???????finally { ???????????try { ???????????????if (in != null) { ???????????????????in.close(); ???????????????} ???????????} catch (Exception e2) { ???????????????e2.printStackTrace(); ???????????} ???????} ???????return resultBuf.toString(); ???} ???public static String assemParam(Map<String, Object> param) { ???????Set<String> keys = param.keySet(); ???????StringBuffer sb = new StringBuffer(); ???????for (Iterator<String> iter = keys.iterator(); iter.hasNext();) { ???????????String key = iter.next(); ???????????sb.append(key); ???????????sb.append("="); ???????????sb.append(param.get(key)); ???????????if (iter.hasNext()) { ???????????????sb.append("&"); ???????????} ???????} ???????return sb.toString(); ???} ???/** ????* 向指定 URL 发送POST方法的请求 ????* ????* @param url ????* ???????????发送请求的 URL ????* @param req ????* ???????????请求参数，请求参数应该是 name1=value1&name2=value2 的形式。 ????* @param timeout 连接超时时间 /单位毫秒 ????* @return 所代表远程资源的响应结果 ????*/ ???public static String sendPost(String url, Map req,int timeout) { ???????PrintWriter out = null; ???????BufferedReader in = null; ???????String result = ""; ???????try { ???????????URL realUrl = new URL(url); ???????????// 打开和URL之间的连接 ???????????URLConnection conn = realUrl.openConnection(); ???????????// 设置通用的请求属性 ???????????conn.setRequestProperty("accept", "*/*"); ???????????conn.setRequestProperty("connection", "Keep-Alive"); ???????????conn.setRequestProperty("user-agent", ???????????????????"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)"); ???????????conn.setRequestProperty("content-type", "text/json"); ???????????conn.setRequestProperty("method","POST"); ???????????// 发送POST请求必须设置如下两行 ???????????conn.setDoOutput(true); ???????????conn.setDoInput(true); ???????????conn.setConnectTimeout(timeout);//连接超时时间 ???????????// 获取URLConnection对象对应的输出流 ???????????StringBuilder sb=new StringBuilder(); ???????????Iterator<String> iterator = req.keySet().iterator(); ???????????while (iterator.hasNext()) { ???????????????String key=iterator.next().toString(); ???????????????String val=req.get(key).toString(); ???????????????sb.append(key); ???????????????sb.append("="); ???????????????sb.append(val); ???????????????if (iterator.hasNext()) { ???????????????????sb.append("&"); ???????????????} ???????????} ???????????out = new PrintWriter(conn.getOutputStream()); ???????????// 发送请求参数 ???????????out.print(sb); ???????????// flush输出流的缓冲 ???????????out.flush(); ???????????// 定义BufferedReader输入流来读取URL的响应 ???????????in = new BufferedReader( ???????????????????new InputStreamReader(conn.getInputStream(),Charset.forName("utf-8"))); ???????????String line; ???????????while ((line = in.readLine()) != null) { ???????????????result += line; ???????????} ???????} catch (Exception e) { ???????????System.out.println("发送 POST 请求出现异常！"+e+" url="+url+" param="+req+" time="+timeout); ???????????e.printStackTrace(); ???????} ???????//使用finally块来关闭输出流、输入流 ???????finally{ ???????????try{ ???????????????if(out!=null){ ???????????????????out.close(); ???????????????} ???????????????if(in!=null){ ???????????????????in.close(); ???????????????} ???????????} ???????????catch(IOException ex){ ???????????????ex.printStackTrace(); ???????????} ???????} ???????return result; ???} ???/** ????* 向指定 URL 发送POST方法的请求 ????* ????* @param url 发送请求的 URL ????* @param req 请求参数，请求参数应该是 name1=value1&name2=value2 的形式。 ????* @return 所代表远程资源的响应结果 ????*/ ???public static String sendPost(String url, String json) { ???????PrintWriter out = null; ???????BufferedReader in = null; ???????String result = ""; ???????try { ???????????URL realUrl = new URL(url); ???????????// 打开和URL之间的连接 ???????????URLConnection conn = realUrl.openConnection(); ???????????// 设置通用的请求属性 ???????????conn.setRequestProperty("accept", "*/*"); ???????????conn.setRequestProperty("connection", "Keep-Alive"); ???????????conn.setRequestProperty("user-agent", ???????????????????"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)"); ???????????conn.setRequestProperty("content-type", "text/json"); ???????????// 发送POST请求必须设置如下两行 ???????????conn.setDoOutput(true); ???????????conn.setDoInput(true); ???????????conn.setConnectTimeout(5000);//连接超时时间 ???????????// 获取URLConnection对象对应的输出流 ???????????out = new PrintWriter(conn.getOutputStream()); ???????????// 发送请求参数 ???????????out.print(json); ???????????// flush输出流的缓冲 ???????????out.flush(); ???????????// 定义BufferedReader输入流来读取URL的响应 ???????????in = new BufferedReader( ???????????????????new InputStreamReader(conn.getInputStream(), Charset.forName("utf-8"))); ???????????String line; ???????????while ((line = in.readLine()) != null) { ???????????????result += line; ???????????} ???????} catch (Exception e) { ???????????System.out.println("发送 POST 请求出现异常！"+e+" url="+url); ???????????e.printStackTrace(); ???????} ???????//使用finally块来关闭输出流、输入流 ???????finally { ???????????try { ???????????????if (out != null) { ???????????????????out.close(); ???????????????} ???????????????if (in != null) { ???????????????????in.close(); ???????????????} ???????????} catch (IOException ex) { ???????????????ex.printStackTrace(); ???????????} ???????} ???????return result; ???} ???public static void main(String[] args) { ???????// http://10.144.48.82/mobile_api/serviceApi?method=product.ProductService.getGoodsInfo&skuNo=8001019816 ???????String re = new HttpUtils().sendGet("http://10.144.48.82/serviceApi", ???????????????"method=product.getGoodsInfo&skuNo=8001019816",60); ???????// System.out.println(re); ???} ???public String post(String url, String encoding, Map<String,String> map){ ???????boolean checkFlag = false; ???????HttpPost post = null; ???????DefaultHttpClient httpClient = new DefaultHttpClient(); ???????try { ???????????//String url = "http://localhost:8081/batchCates";//Constant.PERMISSION_URL; ???????????post = new HttpPost(url); ???????????List<BasicNameValuePair> postData = new ArrayList<BasicNameValuePair>(); ???????????for (Map.Entry<String, String> entry : map.entrySet()) { ???????????????postData.add(new BasicNameValuePair(entry.getKey(), entry.getValue())); ???????????????//LOG.info(entry.getValue()); ???????????} ???????????UrlEncodedFormEntity entity = new UrlEncodedFormEntity(postData,encoding); ???????????post.setEntity(entity); ???????????HttpResponse response = httpClient.execute(post); ???????????//LOG.info(System.currentTimeMillis() - startTime); ???????????HttpEntity resEntiy = response.getEntity(); ???????????String result = EntityUtils.toString(resEntiy); ??????????return result; ???????} catch (Exception e) { ???????????e.printStackTrace(); ???????} ???????return ""; ???}}