jdk添加三方证书，解决sun.security.validator.ValidatorException: PKIX path building failed

mac电脑查找java默认安装目录，一般都在：

/Library/Java/JavaVirtualMachines 下找，用网上命令查找jdk目录真的坑，你一般会得到

/Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home

我的目录为：/Library/Java/JavaVirtualMachines/jdk1.8.0_201.jdk/Contents/Home/jre/lib/security/cacerts

查看本机电脑jdk已信任证书列表命令：

keytool -list -keystore "/Library/Java/JavaVirtualMachines/jdk1.8.0_201.jdk/Contents/Home/jre/lib/security/cacerts" -storepass changeit

添加自定义证书命令：

sudo keytool -importcert -file /Users/xxx/product/crcc.cer -alias crcc -keystore "/Library/Java/JavaVirtualMachines/jdk1.8.0_201.jdk/Contents/Home/jre/lib/security/cacerts" -storepass changeit

必须sudo

-file 证书全路径

其余替换引号里路径

然后输入y同意即可