如何使用Spring RestTemplate调用HTTPS restful Web服务 [英] How to call HTTPS restful web services using Spring RestTemplate

问题描述

我正在使用Tomcat7，Spring框架进行ReST Web服务。
我尝试使用 Spring RestTemplate 调用 https Web服务。
我收到以下错误：

I am using Tomcat7, Spring framework for ReST web services. I am trying to call an https web service using Spring RestTemplate. I am getting the following error:

无法找到所请求目标的有效证书路径;嵌套的
异常是javax.net.ssl.SSLHandshakeException：
sun.security.validator.ValidatorException：PKIX路径构建失败：
sun.security.provider.certpath.SunCertPathBuilderException：无法
找到所请求目标的有效证书路径

unable to find valid certification path to requested target; nested exception is javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

我在stackoverflow上在线检查。我尝试了网址中的示例代码：
使用Https Rest服务访问Spring RestTemplate

I check online at stackoverflow. I tried the sample code from the url: Access Https Rest Service using Spring RestTemplate

我无法让它工作。
任何人都可以根据下面的代码告诉我我需要更改什么？
也可以有人告诉我或者提供我需要的java库的pom.xml文件吗？

I couldn't get it to work. Can anybody please tell me based on the code below what do I need to change? Also can anybody tell me or provide me with the pom.xml file which java libraries would I need?

        import org.springframework.web.bind.annotation.RequestMethod;
        import org.springframework.web.client.RestTemplate;

        import com.fasterxml.jackson.core.JsonGenerationException;
        import com.fasterxml.jackson.databind.JsonMappingException;
        import com.fasterxml.jackson.databind.ObjectMapper;
        import com.journaldev.spring.controller.EmpRestURIConstants;
        import com.journaldev.spring.model.CostControlPost;
        import com.journaldev.spring.model.Employee;
        import com.journaldev.spring.model.RfxForUpdate;

        import static org.junit.Assert.*;
        import org.apache.commons.codec.binary.Base64;


        import javax.net.ssl.*;
        import java.io.*;
        import java.security.KeyStore;
        import java.security.MessageDigest;
        import java.security.cert.CertificateException;
        import java.security.cert.X509Certificate;


        public class TestExample2
        {
            public static final String SERVER_LIST="https://abc/sourcing/testServices";


            @Test
            public void testGetListOfServiceNames()
            {
                try
                {


                    RestTemplate restTemplate = new RestTemplate();
                    ResponseEntity<String> response = restTemplate.exchange(SERVER_LIST,HttpMethod.GET,null,String.class);
                    assertNotNull(response);    
                }
                catch(Exception e)
                {
                    System.out.println("e:"+e.getMessage());
                }
            }


        }

推荐答案

您需要在密钥库中拥有证书，或者您可以接受所有证书（拒绝证书验证）

Either you need to have certificates in your keystore or you can accept all certificates (kind off ignore certificate validation)

所以你可以将rest模板的bean重新定义为

So you can re-define bean of rest template as

@Bean
public RestTemplate restTemplate() throws KeyStoreException, NoSuchAlgorithmException, KeyManagementException {
    TrustStrategy acceptingTrustStrategy = (X509Certificate[] chain, String authType) -> true;

    SSLContext sslContext = org.apache.http.ssl.SSLContexts.custom()
                    .loadTrustMaterial(null, acceptingTrustStrategy)
                    .build();

    SSLConnectionSocketFactory csf = new SSLConnectionSocketFactory(sslContext);

    CloseableHttpClient httpClient = HttpClients.custom()
                    .setSSLSocketFactory(csf)
                    .build();

    HttpComponentsClientHttpRequestFactory requestFactory =
                    new HttpComponentsClientHttpRequestFactory();

    requestFactory.setHttpClient(httpClient);
    RestTemplate restTemplate = new RestTemplate(requestFactory);
    return restTemplate;
 }

除了apache核心，客户端和依赖项之外，你不需要额外的jar。

You should not need additional jars except for apache core, client and dependencies.

这篇关于如何使用Spring RestTemplate调用HTTPS restful Web服务的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！