关于jdk配置出现的问题解决方案

黑窗口java -version 后出现以下错误

Error: Registry key 'Software\JavaSoft\Java Runtime

Environment'\CurrentVersion' has value '1.8', but '1.7' is required.

Error: could not find java.dll

Error: Could not find Java SE Runtime Environment.

解决：把配置环境变量path中jdk的配置放在最前面。