请求https接口异常

Caused by: javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
	at java.base/sun.security.ssl.Alert.createSSLException(Alert.java:131) ~[na:na]
	at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:371) ~[na:na]
	at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:314) ~[na:na]
	at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:309) ~[na:na]
	at java.base/sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(CertificateMessage.java:654) ~[na:na]
	at java.base/sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(CertificateMessage.java:473) ~[na:na]
	at java.base/sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(CertificateMessage.java:369) ~[na:na]
	at java.base/sun.security.ssl.SSLHandshake.consume(SSLHandshake.java:396) ~[na:na]
	at java.base/sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:480) ~[na:na]
	at java.base/sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:458) ~[na:na]
	at java.base/sun.security.ssl.TransportContext.dispatch(TransportContext.java:201) ~[na:na]
	at java.base/sun.security.ssl.SSLTransport.decode(SSLTransport.java:172) ~[na:na]
	at java.base/sun.security.ssl.SSLSocketImpl.decode(SSLSocketImpl.java:1500) ~[na:na]
	at java.base/sun.security.ssl.SSLSocketImpl.readHandshakeRecord(SSLSocketImpl.java:1415) ~[na:na]
	at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:450) ~[na:na]
	at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:421) ~[na:na]
	at java.base/sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:580) ~[na:na]
	at java.base/sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:183) ~[na:na]
	at java.base/sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1430) ~[na:na]
	at java.base/sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1401) ~[na:na]
	at java.base/sun.net.www.protocol.https.HttpsURLConnectionImpl.getOutputStream(HttpsURLConnectionImpl.java:220) ~[na:na]
	at feign.Client$Default.convertAndSend(Client.java:219) ~[feign-core-12.1.jar:na]
	at feign.Client$Default.execute(Client.java:105) ~[feign-core-12.1.jar:na]
	at feign.SynchronousMethodHandler.executeAndDecode(SynchronousMethodHandler.java:102) ~[feign-core-12.1.jar:na]
	... 69 common frames omitted
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
	at java.base/sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:439) ~[na:na]
	at java.base/sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:306) ~[na:na]
	at java.base/sun.security.validator.Validator.validate(Validator.java:264) ~[na:na]
	at java.base/sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:231) ~[na:na]
	at java.base/sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:132) ~[na:na]
	at java.base/sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(CertificateMessage.java:638) ~[na:na]
	... 88 common frames omitted
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
	at java.base/sun.security.provider.certpath.SunCertPathBuilder.build(SunCertPathBuilder.java:141) ~[na:na]
	at java.base/sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:126) ~[na:na]
	at java.base/java.security.cert.CertPathBuilder.build(CertPathBuilder.java:297) ~[na:na]
	at java.base/sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:434) ~[na:na]
	... 93 common frames omitted

解决方法

1 jdk 导入 证书

浏览器打开请求接口，下载相应的证书
先进入 jdk jdk-17\lib\security
然后
导入

keytool -import -alias HWBPITEnterpriseCA1 -keystore cacerts -file D:\install_ca\BPIT\HWBPITEnterpriseCA1.crt -storepass changeit

下面是查看 和 删除 命令

keytool -list -v -alias HWBPITEnterpriseCA1  -keystore cacerts -storepass changeit

keytool -delete -alias HWBPITEnterpriseCA1 -keystore cacerts -storepass changeit

2 忽略 ssl 证书校验

openfeign 版本

        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-openfeign</artifactId>
            <version>4.0.1</version>
        </dependency>

@Configuration
public class IgnoreSSLCheckConfiguration {
    @Bean
    public Client feignClient() {
        return new Client.Default(getSSLSocketFactory(), new NoopHostnameVerifier());
    }

    private SSLSocketFactory getSSLSocketFactory() {
        try {
            SSLContext sslContext = SSLContexts.custom().loadTrustMaterial(null, new TrustSelfSignedStrategy()).build();
            return sslContext.getSocketFactory();
        } catch (Exception ex) {
            throw new RuntimeException(ex);
        }
    }
}