實例如下：
package com.common.util;import java.io.BufferedReader;import java.io.InputStream;import java.io.InputStreamReader;import java.io.OutputStream;import java.net.ConnectException;import java.net.HttpURLConnection;import java.net.URL;import java.util.Date;import javax.net.ssl.HttpsURLConnection;import javax.net.ssl.SSLContext;import javax.net.ssl.SSLSocketFactory;import javax.net.ssl.TrustManager;import javax.servlet.http.HttpServletRequest;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import com.common.weixin.access.util.MyX509TrustManager;/** * 公眾平台通用接口工具類* * @author * @date 2013-08-09 */public class HttpConnectUtil {private static Logger log = LoggerFactory.getLogger(HttpConnectUtil.class);/*** 發起https請求並獲取結果* * @param requestUrl 請求地址* @param requestMethod 請求方式（GET、POST）* @param outputStr 提交的數據* @return JSONObject(通過JSONObject.get(key)的方式獲取json對象的屬性值)*/public static String httpRequest(String requestUrl, String requestMethod, String outputStr) {String result = null;StringBuffer buffer = new StringBuffer();try {URL url = new URL(requestUrl);HttpURLConnection httpUrlConn = (HttpURLConnection) url.openConnection();// 設置通用的請求屬性httpUrlConn.setRequestProperty("accept", "*/*");httpUrlConn.setRequestProperty("connection", "Keep-Alive");httpUrlConn.setRequestProperty("Charset", "utf-8"); httpUrlConn.setDoOutput(true);httpUrlConn.setDoInput(true);httpUrlConn.setUseCaches(false);// 設置請求方式（GET/POST）httpUrlConn.setRequestMethod(requestMethod);if ("GET".equalsIgnoreCase(requestMethod))httpUrlConn.connect();// 當有數據需要提交時if (null != outputStr) {OutputStream outputStream = httpUrlConn.getOutputStream();// 注意編碼格式，防止中文亂碼outputStream.write(outputStr.getBytes("UTF-8"));outputStream.close();}// 將返回的輸入流轉換成字符串InputStream inputStream = httpUrlConn.getInputStream();InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-8");BufferedReader bufferedReader = new BufferedReader(inputStreamReader);String str = null;while ((str = bufferedReader.readLine()) != null) {buffer.append(str);}bufferedReader.close();inputStreamReader.close();// 釋放資源inputStream.close();inputStream = null;httpUrlConn.disconnect();result = buffer.toString();//jsonObject = JSONObject.fromObject(buffer.toString());} catch (ConnectException ce) {log.error("Weixin server connection timed out.");} catch (Exception e) {log.error("https request error:{}", e);}return result;}/*** 發起https請求並獲取結果* * @param requestUrl 請求地址* @param requestMethod 請求方式（GET、POST）* @param outputStr 提交的數據* @return 結果字符串*/public static String httpsRequest(String requestUrl, String requestMethod, String outputStr) throws Exception{String result = null;StringBuffer buffer = new StringBuffer();try { // 創建SSLContext對象，並使用我們指定的信任管理器初始化TrustManager[] tm = { new MyX509TrustManager() }; SSLContext sslContext = SSLContext.getInstance("SSL", "SunJSSE"); sslContext.init(null, tm, new java.security.SecureRandom()); // 從上述SSLContext對像中得到SSLSocketFactory對象SSLSocketFactory ssf = sslContext.getSocketFactory(); URL url = new URL(requestUrl); HttpsURLConnection httpUrlConn = (HttpsURLConnection) url.openConnection(); httpUrlConn.setSSLSocketFactory(ssf); // 設置通用的請求屬性httpUrlConn.setRequestProperty("accept", "*/*");httpUrlConn.setRequestProperty("connection", "Keep-Alive");httpUrlConn.setRequestProperty("Charset", "utf-8"); httpUrlConn.setDoOutput(true);httpUrlConn.setDoInput(true);httpUrlConn.setUseCaches(false);// 設置請求方式（GET/POST）httpUrlConn.setRequestMethod(requestMethod);if ("GET".equalsIgnoreCase(requestMethod))httpUrlConn.connect();// 當有數據需要提交時if (null != outputStr) {OutputStream outputStream = httpUrlConn.getOutputStream();// 注意編碼格式，防止中文亂碼outputStream.write(outputStr.getBytes("UTF-8"));outputStream.close();}// 將返回的輸入流轉換成字符串InputStream inputStream = httpUrlConn.getInputStream();InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-8");BufferedReader bufferedReader = new BufferedReader(inputStreamReader);String str = null;while ((str = bufferedReader.readLine()) != null) {buffer.append(str);}bufferedReader.close();inputStreamReader.close();// 釋放資源inputStream.close();inputStream = null;httpUrlConn.disconnect();result = buffer.toString();//jsonObject = JSONObject.fromObject(buffer.toString());} catch (ConnectException ce) {log.error(requestUrl + " server connection timed out.");throw new Exception("連接服務器超時");} catch (Exception e) {log.error(requestUrl +" https request error:{}", e);throw new Exception("HTTPS請求錯誤");}return result;} public static String getIpAddr(HttpServletRequest request) {String ip = request.getHeader("x-forwarded-for");if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {ip = request.getHeader("Proxy-Client-IP");}if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {ip = request.getHeader("WL-Proxy-Client-IP");}if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {ip = request.getRemoteAddr();}return ip;} }以上這篇java公眾平台通用接口工具類HttpConnectUtil實例代碼就是小編分享給大家的全部內容了，希望能給大家一個參考，也希望大家多多支持武林網。