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package com.yuanjun.weixindemo.translate; import java.io.BufferedReader; import java.io.Closeable; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.UnsupportedEncodingException; import java.net.HttpURLConnection; import java.net.MalformedURLException; import java.net.URL; import java.net.URLEncoder; import java.security.KeyManagementException; import java.security.NoSuchAlgorithmException; import java.security.cert.CertificateException; import java.security.cert.X509Certificate; import java.util.Map; import javax.net.ssl.HttpsURLConnection; import javax.net.ssl.SSLContext; import javax.net.ssl.TrustManager; import javax.net.ssl.X509TrustManager; class HttpGet { protected static final int SOCKET_TIMEOUT = 10000; // 10S protected static final String GET = "GET"; public static String get(String host, Map<String, String> params) { try { // 设置SSLContext SSLContext sslcontext = SSLContext.getInstance("TLS"); sslcontext.init(null, new TrustManager[] { myX509TrustManager }, null); String sendUrl = getUrlWithQueryString(host, params); // System.out.println("URL:" + sendUrl); URL uri = new URL(sendUrl); // 创建URL对象 HttpURLConnection conn = (HttpURLConnection) uri.openConnection(); if (conn instanceof HttpsURLConnection) { ((HttpsURLConnection) conn).setSSLSocketFactory(sslcontext.getSocketFactory()); } conn.setConnectTimeout(SOCKET_TIMEOUT); // 设置相应超时 conn.setRequestMethod(GET); int statusCode = conn.getResponseCode(); if (statusCode != HttpURLConnection.HTTP_OK) { System.out.println("Http错误码：" + statusCode); } // 读取服务器的数据 InputStream is = conn.getInputStream(); BufferedReader br = new BufferedReader(new InputStreamReader(is,"utf-8")); StringBuilder builder = new StringBuilder(); String line = null; while ((line = br.readLine()) != null) { builder.append(line); } String text = builder.toString(); close(br); // 关闭数据流 close(is); // 关闭数据流 conn.disconnect(); // 断开连接 return text; } catch (MalformedURLException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } catch (KeyManagementException e) { e.printStackTrace(); } catch (NoSuchAlgorithmException e) { e.printStackTrace(); } return null; } public static String getUrlWithQueryString(String url, Map<String, String> params) { if (params == null) { return url; } StringBuilder builder = new StringBuilder(url); if (url.contains("?")) { builder.append("&"); } else { builder.append("?"); } int i = 0; for (String key : params.keySet()) { String value = params.get(key); if (value == null) { // 过滤空的key continue; } if (i != 0) { builder.append('&'); } builder.append(key); builder.append('='); builder.append(encode(value)); i++; } return builder.toString(); } protected static void close(Closeable closeable) { if (closeable != null) { try { closeable.close(); } catch (IOException e) { e.printStackTrace(); } } } /** * 对输入的字符串进行URL编码, 即转换为%20这种形式 * * @param input 原文 * @return URL编码. 如果编码失败, 则返回原文 */ public static String encode(String input) { if (input == null) { return ""; } try { return URLEncoder.encode(input, "utf-8"); } catch (UnsupportedEncodingException e) { e.printStackTrace(); } return input; } private static TrustManager myX509TrustManager = new X509TrustManager() { @Override public X509Certificate[] getAcceptedIssuers() { return null; } @Override public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException { } @Override public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException { } }; }