jdk8.0环境变量配置教程
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jdk8.0环境变量配置教程
maketc 发表于6个月前
jdk8.0环境变量配置教程
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Updating the PATH Environment Variable (Optional)

You can run the JDK without setting the PATH environment variable, or you can optionally set it so that you can conveniently run the JDK executable files (javac.exejava.exejavadoc.exe, and so forth) from any directory without having to type the full path of the command. If you do not set the PATH variable, you need to specify the full path to the executable file every time you run it, such as:

C:\> "C:\Program Files\Java\jdk1.7.0\bin\javac" MyClass.java

It is useful to set the PATH variable permanently so it will persist after rebooting.

To set the PATH variable permanently, add the full path of the jdk1.7.0\bin directory to the PATH variable. Typically, this full path looks something like C:\Program Files\Java\jdk1.7.0\bin. Set the PATH variable as follows on Microsoft Windows:

  1. Click Start, then Control Panel, then System.

  2. Click Advanced, then Environment Variables.

  3. Add the location of the bin folder of the JDK installation for the PATH variable in System Variables. The following is a typical value for the PATH variable:

    C:\WINDOWS\system32;C:\WINDOWS;C:\Program Files\Java\jdk1.7.0\bin

Note:

  • The PATH environment variable is a series of directories separated by semicolons (;) and is not case-sensitive. Microsoft Windows looks for programs in the PATH directories in order, from left to right.
  • You should only have one bin directory for a JDK in the path at a time. Those following the first instance are ignored.
  • If you are not sure where to add the path, add it to the right of the value of the PATH variable.
  • The new path takes effect in each new command window you open after setting the PATH variable.

 

jdk8.0环境变量配置教程

右键选择 计算机→属性→高级系统设置→高级→环境变量

1.系统变量→新建

变量名:JAVA_HOME

变量值:(变量值填写你的jdk的安装目录,例如本人是 C:\Program Files\Java\jdk1.8.0_60)

 

2.在系统变量中找到 Path 变量,选择编辑

在变量值最后输入 %JAVA_HOME%\bin;%JAVA_HOME%\jre\bin;

(注意如果原来Path的变量值末尾没有 ; 号,就先输入 ; 号再输入上面的代码)

 

 

3.系统变量→新建

 

变量名:CLASSPATH

 

变量值:.%JAVA_HOME%\lib;%JAVA_HOME%\lib\tools.jar(注意最前面有一点)

 

4.检验jdk是否配置成功:运行cmd 输入 java -version (java 和 -version 之间有空格) 或 javac -version

 

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