我正在尝试验证证书的公钥。已使用此命令将证书导入到keystore中:keytool-importcert-filecert.cer-keystorekstore.jks-aliasmycert-storepasschangeit这是我用来验证公钥的java代码:FilekeyStore=newFile("kstore.jks");StringkeyStorePassword="changeit";KeyStoreks=null;try{ks=KeyStore.getInstance("jks");ks.load(keyStore.toURI().toURL().openStream(