JDK：
1. Download jdk
Address: http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html
2. Install JDK
For normal installation, the default is all the way. Remember the installation path and use it when configuring environment variables.
Default installation path: C:\Program Files\Java\jdk1.8.0_171
After installation, there will be two folders, one is jdk and the other is jre (run)
3. Configure JDK environment variables
Variable name: JAVA_HOME
Variable value: C:\Program Files\Java\jdk1.8.0_171
Variable name: Path (if it already exists, add the following value directly to the existing variable)
Variable amount:% JAVA_HOME% \ bin;% JAVA_HOME% \ jre \ bin
Variable name: CLASSPATH
Variable value: .;%JAVA_HOME%lib;%JAVA_HOME%lib\tools.jar
After the configuration is complete, enter javac and java in the CMD, and no error is reported, indicating that the configuration has been completed.
JMETER：
4. Download Jmeter
http://mirrors.tuna.tsinghua.edu.cn/apache//jmeter/binaries/apache-jmeter-4.0.zip
After downloading, unzip it to the location you want to install: C:\Program Files\apache-jmeter-4.0_src
5. Configure Jmeter environment variables
Variable name: JMETER_HOME
Variable value: C:\Program Files\apache-jmeter-4.0
Variable name: Path (add the following value directly to the existing variable)
Variable value: %JMETER_HOME%\bin
Variable name: CLASSPATH
变量值：%JMETER_HOME%\lib\ext\ApacheJMeter_core.jar;%JMETER_HOME%\lib\jorphan.jar;%JMETER_HOME%\lib/logkit-2.0.jar;
6、启动jmeter
找到C:\Program Files\apache-jmeter-4.0\bin\jmeter.bat 双击打开。
会出现CMD窗口和jmeter窗口（CMD窗口不能关闭）