public class SslUtils { private static void trustAllHttpsCertificates() throws Exception { TrustManager[] trustAllCerts = new TrustManager[1]; TrustManager tm = new miTM(); trustAllCerts[0] = tm; SSLContext sc = SSLContext.getInstance("SSL"); sc.init(null, trustAllCerts, null); HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory()); } static class miTM implements TrustManager,X509TrustManager { @Override public X509Certificate[] getAcceptedIssuers() { return null; } public boolean isServerTrusted(X509Certificate[] certs) { return true; } public boolean isClientTrusted(X509Certificate[] certs) { return true; } @Override public void checkServerTrusted(X509Certificate[] certs, String authType) { return; } @Override public void checkClientTrusted(X509Certificate[] certs, String authType) { return; } } /** * 忽略HTTPS请求的SSL证书，必须在openConnection之前调用 * @throws Exception */ public static void ignoreSsl() throws Exception{ HostnameVerifier hv = (urlHostName, session) -> { System.out.println("Warning: URL Host: " + urlHostName + " vs. " + session.getPeerHost()); return true; }; trustAllHttpsCertificates(); HttpsURLConnection.setDefaultHostnameVerifier(hv); } }解释一下这段代码

这是一个Java类，名为SslUtils。其中包含了一个静态方法ignoreSsl()，该方法用于忽略HTTPS请求的SSL证书，在使用openConnection()方法建立HTTPS连接之前调用。该方法实现了一个自定义的HostnameVerifier，并调用了trustAllHttpsCertificates()方法，该方法会初始化一个SSLContext并将一个自定义的TrustManager添加到其中，从而实现了信任所有HTTPS证书的效果。miTM类是一个实现了TrustManager和X509TrustManager接口的内部类，用于管理证书信任。具体而言，该类实现的方法isServerTrusted()和isClientTrusted()返回true，表示信任所有服务器或客户端证书；而getAcceptedIssuers()、checkServerTrusted()和checkClientTrusted()方法则返回空或什么都不做，表示不做任何证书验证。