java中发送http包，包含get及post请求

package com.yao.http; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.net.HttpURLConnection; import java.net.URL; import java.nio.charset.Charset; import java.util.Map; import java.util.Vector; /* HTTP请求对象*/ public class HttpRequester { private String defaultContentEncoding; // public HttpRequester() { this.defaultContentEncoding = Charset.defaultCharset().name(); } /*发送GET请求 @param urlString URL地址;@return 响应对象; @throws IOException*/ public HttpRespons sendGet(String urlString) throws IOException { return this.send(urlString, "GET", null, null); } /*发送GET请求 @param urlString URL地址;@param params 参数集合;@return 响应对象;@throws IOException*/ public HttpRespons sendGet(String urlString, Map<String, String> params)throws IOException { return this.send(urlString, "GET", params, null); } /*发送GET请求 @param urlString URL地址;@param params 参数集合;@param propertys 请求属性;@return 响应对象; @throws IOException*/ public HttpRespons sendGet(String urlString, Map<String, String> params,Map<String, String> propertys) throws IOException { return this.send(urlString, "GET", params, propertys); } /*发送POST请求 @param urlString URL地址;@return 响应对象;@throws IOException*/ public HttpRespons sendPost(String urlString) throws IOException { return this.send(urlString, "POST", null, null); } /*发送POST请求 @param urlString URL地址;@param params 参数集合;@return 响应对象;@throws IOException*/ public HttpRespons sendPost(String urlString, Map<String, String> params)throws IOException { return this.send(urlString, "POST", params, null); } /*发送POST请求 @param urlString URL地址;@param params 参数集合;@param propertys 请求属性;@return 响应对象;@throws IOException*/ public HttpRespons sendPost(String urlString, Map<String, String> params,Map<String, String> propertys) throws IOException { return this.send(urlString, "POST", params, propertys); } /*发送HTTP请求 @param urlString;@return 响映对象;@throws IOException*/ private HttpRespons send(String urlString, String method,Map<String, String> parameters, Map<String, String> propertys)throws IOException { HttpURLConnection urlConnection = null; if (method.equalsIgnoreCase("GET") && parameters != null) { StringBuffer param = new StringBuffer(); int i = 0; for (String key : parameters.keySet()) { if (i == 0) param.append("?"); else param.append("&"); param.append(key).append("=").append(parameters.get(key)); i++; } urlString += param; } URL url = new URL(urlString); urlConnection = (HttpURLConnection) url.openConnection(); urlConnection.setRequestMethod(method); urlConnection.setDoOutput(true); urlConnection.setDoInput(true); urlConnection.setUseCaches(false); if (propertys != null) for (String key : propertys.keySet()) { urlConnection.addRequestProperty(key, propertys.get(key)); } if (method.equalsIgnoreCase("POST") && parameters != null) { StringBuffer param = new StringBuffer(); int j=0; for (String key : parameters.keySet()) { if(j!=0) param.append("&"); param.append(key).append("=").append(parameters.get(key)); j++; } urlConnection.getOutputStream().write(param.toString().getBytes()); urlConnection.getOutputStream().flush(); urlConnection.getOutputStream().close(); } return this.makeContent(urlString, urlConnection); } /*得到响应对象 @param urlConnection;@return 响应对象;@throws IOException*/ private HttpRespons makeContent(String urlString,HttpURLConnection urlConnection) throws IOException { HttpRespons httpResponser = new HttpRespons(); try { InputStream in = urlConnection.getInputStream(); BufferedReader bufferedReader = new BufferedReader( new InputStreamReader(in)); httpResponser.contentCollection = new Vector<String>(); StringBuffer temp = new StringBuffer(); String line = bufferedReader.readLine(); while (line != null) { httpResponser.contentCollection.add(line); temp.append(line).append("\r\n"); line = bufferedReader.readLine(); } bufferedReader.close(); String ecod = urlConnection.getContentEncoding(); if (ecod == null) ecod = this.defaultContentEncoding; httpResponser.urlString = urlString; httpResponser.defaultPort = urlConnection.getURL().getDefaultPort(); httpResponser.file = urlConnection.getURL().getFile(); httpResponser.host = urlConnection.getURL().getHost(); httpResponser.path = urlConnection.getURL().getPath(); httpResponser.port = urlConnection.getURL().getPort(); httpResponser.protocol = urlConnection.getURL().getProtocol(); httpResponser.query = urlConnection.getURL().getQuery(); httpResponser.ref = urlConnection.getURL().getRef(); httpResponser.userInfo = urlConnection.getURL().getUserInfo(); httpResponser.content = new String(temp.toString().getBytes(), ecod); httpResponser.contentEncoding = ecod; httpResponser.code = urlConnection.getResponseCode(); httpResponser.message = urlConnection.getResponseMessage(); httpResponser.contentType = urlConnection.getContentType(); httpResponser.method = urlConnection.getRequestMethod(); httpResponser.connectTimeout = urlConnection.getConnectTimeout(); httpResponser.readTimeout = urlConnection.getReadTimeout(); return httpResponser; } catch (IOException e) { throw e; } finally { if (urlConnection != null) urlConnection.disconnect(); } } /*默认的响应字符集*/ public String getDefaultContentEncoding() { return this.defaultContentEncoding; } /*设置默认的响应字符集*/ public void setDefaultContentEncoding(String defaultContentEncoding) { this.defaultContentEncoding = defaultContentEncoding; } }