Https .cer证书转换为BKS证书 公式
https://blog.csdn.net/zww986736788/article/details/81708967
keytool -importcert -v -trustcacerts -alias jsnet -file D:\keys\jsnet\ipnet_server.cer -keystore D:\keys\jsnet\truststore.bks -storetype BKS -providerclass org.bouncycastle.jce.provider.BouncyCastleProvider -providerpath D:\keys\bcprov-jdk15on-146.jar -storepass jsnet1234
Https双向认证Android客户端配置
https://blog.csdn.net/zww986736788/article/details/78425459