本文主要是介绍使java_websocket_cilent支持wss协议，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
1. 题外话：可以用nginx或者apache使用 https到http的代理，实现把wss服务代理到ws
server {
listen 443;
server_name test.xxxx.com;access_log logs/test.xxxx.log main;ssl on;
ssl_certificate /etc/test.xxxx.com.cer; # 这里是服务端的证书路径
ssl_certificate_key /etc/test.xxxx.com.key; # 这里是秘钥路径
ssl_session_timeout 5m;
ssl_session_cache shared:SSL:10m;
ssl_protocols TLSv1 TLSv1.1 TLSv1.2 SSLv2 SSLv3;
ssl_ciphers ALL:!ADH:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP;
ssl_prefer_server_ciphers on;
ssl_verify_client off;location / {
proxy_redirect off;
proxy_pass http://127.0.0.1:7474; //主机上的ws服务端口
proxy_set_header Host $host;
proxy_set_header X-Real_IP $remote_addr;
proxy_set_header X-Forwarded-For $remote_addr:$remote_port;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection “upgrade”;
}}
2. 比较简单易用的一个websocket java客户端 https://github.com/TooTallNate/Java-WebSocket 不支持wss（最初不支持，19年看已经可以支持了），所以参考网上的方法，稍加修改封装了一个支持wss的客户端，代码如下：
package com.cdr.wsc;import java.net.URI;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSession;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;import org.java_websocket.client.DefaultSSLWebSocketClientFactory;
import org.java_websocket.client.WebSocketClient;
import org.java_websocket.drafts.Draft;abstract class SimpleWss extends WebSocketClient {public SimpleWss(URI serverURI) {super(serverURI);if(serverURI.toString().contains("wss://"))trustAllHosts(this);}public SimpleWss(URI serverURI,Draft draft) {super(serverURI,draft);if(serverURI.toString().contains("wss://"))trustAllHosts(this);}final static HostnameVerifier DO_NOT_VERIFY = new HostnameVerifier() {public boolean verify(String hostname, SSLSession session) {return true;}};static void trustAllHosts(SimpleWss appClient) {System.out.println("wss");TrustManager[] trustAllCerts = new TrustManager[]{new X509TrustManager() {public java.security.cert.X509Certificate[] getAcceptedIssuers() {return new java.security.cert.X509Certificate[]{};}@Overridepublic void checkClientTrusted(X509Certificate[] arg0, String arg1) throws CertificateException {// TODO Auto-generated method stub}@Overridepublic void checkServerTrusted(X509Certificate[] arg0, String arg1) throws CertificateException {// TODO Auto-generated method stub}}};try {SSLContext sc = SSLContext.getInstance("TLS");sc.init(null, trustAllCerts, new java.security.SecureRandom());appClient.setWebSocketFactory(new DefaultSSLWebSocketClientFactory(sc));} catch (Exception e) {e.printStackTrace();}}
}这里封装得到的SimpleWss和WebSocketClient的用法基本一致，如：
import java.net.URI;
import java.net.URISyntaxException;import org.java_websocket.handshake.ServerHandshake;public class EscTest {public static String initmsg = "{'cmd':'login','data':{'username':'xinji','password':'PASSWORD'}}".replaceAll("'", "\"").replaceAll("PASSWORD", "1402");public static void main(String[] args) throws URISyntaxException {new SimpleWss(new URI("wss://tjpu.edu.org/websocket")) {@Overridepublic void onClose(int arg0, String arg1, boolean arg2) {System.out.println("onClose");}@Overridepublic void onError(Exception arg0) {System.out.println("onError");}@Overridepublic void onMessage(String arg0) {System.out.println("onMessage");this.send(arg0);}@Overridepublic void onOpen(ServerHandshake arg0) {System.out.println("onOpen");this.send(initmsg);}}.connect();}
}
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