一、查看Java安装路径
java -XshowSettings:properties -version
二，生成证书指令
Enter keystore password: //输入证书文件密码，输入完成回车 Re-enter new password: //再次输入证书文件密码，输入完成回车 What is your first and last name? [Unknown]: qhweb //输入名字和姓氏，输入完成回车 What is the name of your organizational unit? [Unknown]: qhweb //输入组织单位名称，输入完成回车 What is the name of your organization? [Unknown]: qhweb //输入组织名称，输入完成回车 What is the name of your City or Locality? [Unknown]: xn //输入城市或区域名称，输入完成回车 What is the name of your State or Province? [Unknown]: qh //输入省/市/自治区名称，输入完成回车 What is the two-letter country code for this unit? [Unknown]: cn//输入国家/地区代号（两个字母），中国为CN，输入完成回车 Is CN=XX, OU=XX, O=XX, L=XX, ST=XX, C=XX correct? [no]: y //确认上面输入的内容是否正确，输入y，回车