1. 【My Computer】->【Properties】->【Advanced】- >【Environment Variables】->【System Variables】Add the following environment variables:
2. The JAVA_HOME value is: [D:\Program Files\Java\jdk1.7.0_11] (JDK installation directory)
3. Path: append [%JAVA_HOME%\bin] (if your original path has; at the end, no need)
4. Set the classpath environment variable. The CLASSPATH value is: 【.;%JAVA_HOME%\lib\tools.jar;%JAVA_HOME%\lib\dt.jar;%JAVA_HOME%\bin;】 (frontmost There is a point).
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