将系统部署在was上，在调用微信接口生成media_id时报错，错误信息：

[20-4-17 16:30:32:052 CST] 000000e4 SystemErr R Caused by: com.ibm.jsse2.util.h: PKIX path building failed: java.security.cert.CertPathBuilderException: PKIXCertPathBuilderImpl could not build a valid CertPath.; internal cause is:
java.security.cert.CertPathValidatorException: The certificate issued by CN=DigiCert Global Root CA, OU=www.digicert.com, O=DigiCert Inc, C=US is not trusted; internal cause is:
java.security.cert.CertPathValidatorException: Certificate chaining error
[20-4-17 16:30:32:053 CST] 000000e4 SystemErr R at com.ibm.jsse2.util.f.a(f.java:109)

大佬们，求助啊！