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package com.hans.common.util;import javax.net.ssl.*;import java.io.*;import java.net.HttpURLConnection;import java.net.URL;import java.security.cert.X509Certificate;/** * @author xiaobu * @version JDK1.8.0_171 * @date on  2020/12/3 17:17 * @description */public class MyTrustManager {
       public static void main(String[] args) {
       }    public static String sendHtpps(String url,String param) {
           String result = "";        PrintWriter out = null;        BufferedReader in = null;        HttpURLConnection conn;        try {
               trustAllHosts();            URL realUrl = new URL(url);            // 通过请求地址判断请求类型(http或者是https)            if ("https".equals(realUrl.getProtocol().toLowerCase())) {
                   HttpsURLConnection https = (HttpsURLConnection) realUrl.openConnection();                https.setHostnameVerifier(DO_NOT_VERIFY);                conn = https;            } else {
                   conn = (HttpURLConnection) 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", "application/x-www-form-urlencoded");           // conn.setRequestProperty("Content-Type", "text/plain;charset=utf-8");            // 发送POST请求必须设置如下两行            conn.setDoOutput(true);            conn.setDoInput(true);            // 获取URLConnection对象对应的输出流            out = new PrintWriter(conn.getOutputStream());            out.print(param);            // 发送请求参数            // out.print(a);            // 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()));            String line;            while ((line = in.readLine()) != null) {
                   result += line;            }        } catch (Exception e) {
               e.printStackTrace();        } finally {
   // 使用finally块来关闭输出流、输入流            try {
                   if (out != null) {
                       out.close();                }                if (in != null) {
                       in.close();                }            } catch (IOException ex) {
                   ex.printStackTrace();            }        }        return result;    }    private static void trustAllHosts() {
           // Create a trust manager that does not validate certificate chains        TrustManager[] trustAllCerts = new TrustManager[] {
    new X509TrustManager() {
               @Override            public java.security.cert.X509Certificate[] getAcceptedIssuers() {
                   return new java.security.cert.X509Certificate[] {
   };            }            @Override            public void checkClientTrusted(X509Certificate[] chain, String authType) {
               }            @Override            public void checkServerTrusted(X509Certificate[] chain, String authType) {
               }        } };        // Install the all-trusting trust manager        try {
               SSLContext sc = SSLContext.getInstance("TLS");            sc.init(null, trustAllCerts, new java.security.SecureRandom());            HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());        } catch (Exception e) {
               e.printStackTrace();        }    }    private final static HostnameVerifier DO_NOT_VERIFY = new HostnameVerifier() {
           @Override        public boolean verify(String hostname, SSLSession session) {
               return true;        }    };}

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