【Java】springboot restTemplate https 請求 忽略SSL 認證

提供 springboot restTemplate https 請求 忽略 SSL 認證 的範例

一、建立config設定檔

import java.security.KeyManagementException
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;

import javax.net.ssl.SSLContext;

import org.apache.http.conn.ssl.NoopHostnameVerifier;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.conn.ssl.TrustStrategy;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.ssl.SSLContexts;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.client.ClientHttpRequestFactory;
import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
import org.springframework.http.client.SimpleClientHttpRequestFactory;
import org.springframework.web.client.RestTemplate;


@Configuration
public class RestTemplateConfig {


@Bean
public ClientHttpRequestFactory simpleClientHttpRequestFactory() {
	SimpleClientHttpRequestFactory factory = new SimpleClientHttpRequestFactory();
	factory.setReadTimeout(5000);
	factory.setConnectTimeout(15000);
	return factory;
}	
	
@Bean
public RestTemplate restTemplate(ClientHttpRequestFactory factory) {
	RestTemplate restTemplate = new RestTemplate(factory);
        return restTemplate;
}	

//此方法為主要設定	
public static HttpComponentsClientHttpRequestFactory generateHttpRequestFactory()
       throws NoSuchAlgorithmException, KeyManagementException, KeyStoreException
    {
        TrustStrategy acceptingTrustStrategy = (x509Certificates, authType) -> true;
        SSLContext sslContext = SSLContexts.custom().loadTrustMaterial(null, acceptingTrustStrategy).build();
        SSLConnectionSocketFactory connectionSocketFactory = new SSLConnectionSocketFactory(sslContext, new NoopHostnameVerifier()); //關閉驗證

        HttpClientBuilder httpClientBuilder = HttpClients.custom();
        httpClientBuilder.setSSLSocketFactory(connectionSocketFactory);
        CloseableHttpClient httpClient = httpClientBuilder.build();
        HttpComponentsClientHttpRequestFactory factory = new HttpComponentsClientHttpRequestFactory();
        factory.setHttpClient(httpClient);
        return factory;
    }
}

二、引用此設定

//建立物件
RestTemplate restTemplateHttps = new RestTemplate(RestTemplateConfig.generateHttpRequestFactory());

ResponseEntity<String> response = restTemplateHttps.exchange(
	builder.build().encode().toUri(),
	HttpMethod.GET,
	entity,
	String.class);