java安装1.8的经验和Error: Registry key 'Software\JavaSoft\Java Runtime Environment'\CurrentVers问题处理
2017-09-23 00:00
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java安装1.8后的问题:之前安装了jdk1.7和jdk1.6,之后又安装jdk1.8,然后执行java -version,输出的是1.8的,后来在注册表把jdk1.8改为1.7,然后就报错了,如下 Error: Registry key 'Software\JavaSoft\Java Runtime Environment'\CurrentVers
解答:看了一下环境变量的path,第一个路径是C:\ProgramData\Oracle\Java\javapath;,进去之后发现是几个超链接:java.exe、javaw.exe和javaws.exe,几个超链接指向了jdk1.8,然后把path的C:\ProgramData\Oracle\Java\javapath;删了。
然后可能还会不行,因为C:\Windows\System32下面还有三个文件java.exe、javaw.exe和javaws.exe,也需要删了。
分析:
应该是jdk8安装的时候会覆盖原来jdk7的注册表,并且为了方便大家使用,直接添加了环境变量,也就不需要在配置JAVA_HOME的环境变量了
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