cmd 执行 java -cp druid-1.0.15.jar com.alibaba.druid.filter.config.ConfigTools gxyd；
产生密码 HScuOL2y5tr2o15Hqf6jdjPfdZLN+KfTtrRhq9nCcrfno+aR5N73612hNy8N1dznKzQOKfn5O8mCahHqVnHWlg==；
java -cp druid-1.0.20.jar com.alibaba.druid.filter.config.ConfigTools xjyd
privateKey:MIIBVQIBADANBgkqhkiG9w0BAQEFAASCAT8wggE7AgEAAkEAkPsrXIbFhcPYl09OJIBtp5htuwg29BF4JP2HGtk5abxuJtaRZmF7Qc5n/6MTa+Duic1bECZRzT6gjgrnyGWAWwIDAQABAkA2/2Dil6mEZdfbBlWRWTq/sf4mTiZyjdHyzk4bLD4wUplR4DQ/yNgvdTA5+7Vsnv+LIp4BrbvHOyHk+JaI4fKBAiEA9Ti9eEMJbVzgj1N0L8Qx2oVK82MRBG8PLTQL3+pM40ECIQCXWoMt4Hj+2MuKB9w6oexi50tgAGlIKwzUdsBghaXomwIhALTj3iBQkyuxT5VqolJ6D6x6lwdjFLKImlFmCzxpwb4BAiEAkMfpgiIfPBFgKqq4NXIdcMK2LKBYFcvwmvD5t5tBCI8CIEoEXlAXIb69UoJa5oZ+A4vD6CLgQGz69pJbs6sMd0SK
publicKey:MFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBAJD7K1yGxYXD2JdPTiSAbaeYbbsINvQReCT9hxrZOWm8bibWkWZhe0HOZ/+jE2vg7onNWxAmUc0+oI4K58hlgFsCAwEAAQ==
password:Tm8hFpl/jvNNSMO7M+FAx4sC0EJZPhw8HF7QtVzLsHHHuxs+WNbWXdEWapLLfo4yDZsof3FchYwL0Jmrn9wbNg==；
由此可以发现不同的版本加密方式不一样的；
出现这样的错误处理 将 druid-1.0.20.jar 复制到 e盘 目录下 再执行 就可以了