Tomcat: Web server software

From the original personal Gitee: "Tomcat: Web Server Software"

Tomcat: web server software

Tomcat is a pure Java language of

installation

Download https://tomcat.apache.org/download-80.cgi

No need to install, just unzip the compressed package.

Note: It is recommended not to have Chinese characters and spaces in the installation directory

Directory Structure

start up

• Windows: Run./bin/startup.bat

• Linux: Run./bin/startup.sh

Possible problems

Chinese garbled

See the blog post for details [ Chinese garbled characters when Tomcat starts ]

The black window flashed by

• Reason: JAVA_HOME environment variable is not configured correctly
• Solution: Configure the JAVA_HOME environment variable correctly

Startup error

violence

• Find the occupied port number, and find the corresponding process, kill the process

• cmd>> netstat -anoview process id (PID)> task manager (view-select column-PID)> end process (corresponding to PID)

tender

• Modify its own port number

• ./conf/server.xml

• <Connector port="8888" protocol="HTTP/1.1" connectionTimeout="20000" redirectPort="8445" />

• Generally, the default port number of tomcat will be changed to 80. Port 80 is the default port number of the http protocol.

  • Benefit: When accessing, you don’t need to enter the port number

• This method can realize the coexistence of multiple Tomcats on a single machine

access

Browser input:

• Visit yourself: http://localhost:8080
• Visit others: http:// other people's ip:8080

View IP address

• cmd>$ ipconfig>IPv4 address

shut down

• For the server itself, it is recommended to use **"Normal shutdown"**
• But in the later stage, Tomcat is used with IDEA

Normal shutdown

• There are two ways:

1. Run manually./bin/shutdown.bat
2. In the Tomcat window, pressCtrl+C

Forced shutdown

• Click the X in the upper right corner of the Tomcat window

How to deploy/configure the project

• There are three ways:

1. Just put the project in the webappsdirectory
2. Configuration conf/server.xmlfile
3. In the conf\Catalina\localhostcreation of any name xml file

virtical list

When the browser http://localhost:8080needs to access a certain item through access, it needs to be added after it /目录或路径(called a virtual directory )

Just put the project in the webapps directory

• /项目(文件夹)名: The access path of the project, also known as the virtual directory

Simplify deployment

• There is also a form of simplified deployment in the first way

• Mark the project into a war package, and then place the war package in the webapps directory

• The war package will be automatically decompressed
• If you delete the project, delete the corresponding war package. The project folder corresponding to the production will be deleted automatically.

Configure the conf/server.xml file

• <Host>Configure in the label body
• <Context docBase="D:\hello" path="/hehe" />
• docBase : The path where the project is stored
• path : virtual directory
• Disadvantages: Need to modify the configuration file, not very safe

Create an xml file of any name in conf\Catalina\localhost

• Write in file
• <Context docBase="D:\hello" />
• Virtual directory: the name of the xml file. such aslocalhost:8080/xml文件/index.html
• Hot deployment method: After deleting or modifying the file name, there is no need to restart the service.

Type of deployment project

• Static project
• Dynamic project

Static project

• Can only store static resources
• HTML, CSS, JavaScript, pictures, audio, video, text, etc.

Dynamic project

• Not only can store static resources, but also dynamic resources

Directory structure (Java dynamic project)

项目根目录
  ﹂-WEB-INF目录
	  ﹂web.xml：web项目的核心配置文件
	  ﹂classes目录：放置字节码文件的目录
	  ﹂lib目录：放置依赖的jar包

such as:

Use Tomcat in IDEA

Integrated into IDEA

New web project

Run the project

note:

1. Default war package deployment

2. /: The default virtual directory is set to the root directory of the current project

Other configuration

• When redeploying the project, do not restart the Tomcat server