在開發中個，第三方https-ssl是自建的，在使用OKhttp/restTemplate呼叫是報錯：

javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path validation failed: java.security.cert.CertPathValidatorException: validity check failed

OkHttpClient設定忽略所有SSL證書驗證

Okhttp程式碼

public static OkHttpClient getUnsafeOkHttpClient() {
        try {
            // Create a trust manager that does not validate certificate chains
            final TrustManager[] trustAllCerts = new TrustManager[] {
                    new X509TrustManager() {
                        @Override
                        public void checkClientTrusted(java.security.cert.X509Certificate[] chain, String authType) {
                        }
 
                        @Override
                        public void checkServerTrusted(java.security.cert.X509Certificate[] chain, String authType) {
                        }
 
                        @Override
                        public java.security.cert.X509Certificate[] getAcceptedIssuers() {
                            return new java.security.cert.X509Certificate[]{};
                        }
                    }
            };
 
            // Install the all-trusting trust manager
            final SSLContext sslContext = SSLContext.getInstance("SSL");
            sslContext.init(null, trustAllCerts, new java.security.SecureRandom());
            // Create an ssl socket factory with our all-trusting manager
            final javax.net.ssl.SSLSocketFactory sslSocketFactory = sslContext.getSocketFactory();
 
            OkHttpClient.Builder builder = new OkHttpClient.Builder();
            builder.sslSocketFactory(sslSocketFactory);
            builder.hostnameVerifier(new HostnameVerifier() {
                @Override
                public boolean verify(String hostname, SSLSession session) {
                    return true;
                }
            });
 
            OkHttpClient okHttpClient = builder.build();
            return okHttpClient;
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

寫了個工具類

import okhttp3.MediaType;
import okhttp3.OkHttpClient;

import javax.net.ssl.*;
import java.util.concurrent.TimeUnit;

public class OkHttpClintUtil {

    public static final MediaType mediaType = MediaType.parse("application/json; charset=utf-8");

    /**
     * 預設-不信任自建ssl
     */
    public static final OkHttpClient httpClient = new OkHttpClient.Builder()
            .connectTimeout(10, TimeUnit.SECONDS)//設定連線超時時間
            .readTimeout(20, TimeUnit.SECONDS)//設定讀取超時時間
            .build();


    /**
     * 信任所有https-ssl證書
     * 航信https-ssl證書是自建的(無恥，不捨得花錢購買)
     * @return
     */
    public static OkHttpClient getUnsafeOkHttpClient() {
        try {
            // Create a trust manager that does not validate certificate chains
            final TrustManager[] trustAllCerts = new TrustManager[] {
                    new X509TrustManager() {
                        @Override
                        public void checkClientTrusted(java.security.cert.X509Certificate[] chain, String authType) {
                        }

                        @Override
                        public void checkServerTrusted(java.security.cert.X509Certificate[] chain, String authType) {
                        }

                        @Override
                        public java.security.cert.X509Certificate[] getAcceptedIssuers() {
                            return new java.security.cert.X509Certificate[]{};
                        }
                    }
            };

            // Install the all-trusting trust manager
            final SSLContext sslContext = SSLContext.getInstance("SSL");
            sslContext.init(null, trustAllCerts, new java.security.SecureRandom());
            // Create an ssl socket factory with our all-trusting manager
            final javax.net.ssl.SSLSocketFactory sslSocketFactory = sslContext.getSocketFactory();

            OkHttpClient.Builder builder = new OkHttpClient.Builder();
            builder.sslSocketFactory(sslSocketFactory);
            builder.hostnameVerifier(new HostnameVerifier() {
                @Override
                public boolean verify(String hostname, SSLSession session) {
                    return true;
                }
            });

            OkHttpClient okHttpClient = builder
                    .connectTimeout(10, TimeUnit.SECONDS)//設定連線超時時間
                    .readTimeout(20, TimeUnit.SECONDS)//設定讀取超時時間
                    .build();
            return okHttpClient;
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }




}

呼叫：

Map<String, Object> params = new HashMap<>();
        params.put("username", TRAVELSKY_BAGGAGE_U);
        params.put("password", TRAVELSKY_BAGGAGE_P);
        String param= JSON.toJSONString(params);
        RequestBody requestBody = RequestBody.create(OkHttpClintUtil.mediaType, param);


        Request getUserRequest = new Request.Builder().url(TRAVELSKY_BAGGAGE_URL)
                .post(requestBody).build();

 Response userResponse = OkHttpClintUtil.getUnsafeOkHttpClient().newCall(getUserRequest).execute();