When tomcat is downloaded, after decompression, there are only .sh and .bat files in the bin file, but some important jar packages are missing.
The reason is that the src file is downloaded, and the bin file should be downloaded.
Just find the problem, download apache-tomcat-8.0.47.tar.gz in the bin file, unzip it again to check the bin directory, and find that there are too many files, including bootstarp.jar and other important files mentioned on the Internet.
Download address: https://mirrors.tuna.tsinghua.edu.cn/apache/tomcat/tomcat-8/v8.0.47/bin/apache-tomcat-8.0.47.tar.gz
Operate directly on the terminal: wget https://mirrors.tuna.tsinghua.edu.cn/apache/tomcat/tomcat-8/v8.0.47/bin/apache-tomcat-8.0.47.tar.gz