A Java Runtime Environment(JRE) or Java Development Kit (JDK) must be available in order to run Eclipse.
解决办法:
系统变量里设置下面:
变量名:JAVA_HOME 变量值:D:\Java\jdk1.8.0_31
变量名:CLASSPATH 变量值:.;%JAVA_HOME%\lib;
变量名:Path 变量值:D:\Java\jdk1.8.0_31\bin
‘真实的’活着