JDK installation is simple, just install by default.
Environment variable configuration:
Add a JAVA_HOME variable with the value: installation path of Jdk, for example: D:\Java\jdk 1.7.0_45.
Add classpath variable, value. ; % JAVA _ HOME % \ lib \ tools.jar%JAVA_HOME%\lib\dt.jar
Modify the path variable and add this sentence% JAVA _ HOME% \ bin.
Check whether the java environment is configured, enter the CMD command line, enter JAVA or javac, and you can see many command prompts, indicating success.
2) Node.js is installed by default, and the installation path can be changed.
After the installation is completed, check whether the node version installation is successful: enter CMD and node -v, and you can see the version number, indicating success.