Tomcat installation, deployment and integration with IDEA to create Web projects

Tomcat installation, deployment and integration with IDEA to create Web projects

number_one: official website download

1.1 Select version: Tomcat 8

1.2. Select the number of download bits (choose according to the number of computer bits)

number_two: tomcat installation and uninstallation

2.1. Select the path, unzip it and the installation is complete.

2.2. Delete the corresponding folder and the uninstallation is complete.

number_three: tomcat startup and access

3.1. windows: double-click startup.bat in the bin directory

3.2. linux: Double-click startup.bat in the bin directory

3.3. Do not shut down after startup

3.4. Local access: 127.0.0.1:8080
3.5. You can also use: localhost:8080

3.6. Access by others: need to know the ip address of the machine, check method: win + r, enter cmd, enter command: ipconfig + enter

3.7. Problems that may be encountered:

a. 黑窗口一闪而过：
		原因：没有正确配置JAVA_HOME环境变量
		解决方案：正确配置JAVA_HOME环境变量


b.启动报错：
	原因：端口号被占用
	解决方案：
	1. 暴力（推荐）：找到占用的端口号，并找到对应的进程，杀死该进程
	cmd --> netstat -ano
	2. 温柔：修改自身端口号
		文件：bin/ conf/ server.xml
		 <Connector port="8080" protocol="HTTP/1.1"
			connectionTimeout="20000"
			redirectPort="8443" />
	一般会将tomact的默认端口号修改为80，80端口号是http协议的默认端口号，
	这样在访问时就不用输入端口号，直接：http://ip + 回车

3.7.1. Violently close the port number process (recommended): find the occupied port number, and find the corresponding process, kill the process
cmd --> netstat -ano

3.7.2. win + x, -> Task Manager- -> Details --> PID sorting, end the process

number_four: off

4.1. 正常关闭
	bin/ shutdown.bat
	ctrl + c
4.2. 强制关闭
	点击启动窗口的 x

number_five: 3 ways to configure and deploy the project

5.1. （开发者会即可）直接将项目放到 webapps 目录下即可
	/hello：项目的访问路径 -->虚拟路径
	简化部署：将项目打包成一个 war 包（方式1：专门war打包工具；方式2：可以将 .html 直接压缩成 .zip 文件，修改后缀为 .war），再将 war 包放置到 webapps 目录下， war 包会自动解压缩。
5.2. （方式3是对2的优化，所以一般不推荐2）配置 conf/ server.xml 文件
	在<Host>标签体中配置
	<!-- 配置项目 dacBase:项目存放路径 path:虚拟目录-->
	<Context docBase="D:\hello" path="/hehe" />

5.3. （运维人员推荐）在 conf\Catalina\localhost 创建任意名称的 .xml 文件，在文件中编写：
 <Context docBase="D:\hello" />
 虚拟目录：.xml 文件的名称

Method 2 (not recommended)
Method 3 ( recommended by operation and maintenance personnel)

number_six: Tomcat and IDEA integration, create a Web project

6.1: Directory structure of static projects and dynamic projects:

java动态项目的目录结构
-- 项目的根目录
	-- WEB-INF目录
 		-- web.xml：web项目的核心配置文件
 		-- classes目录：仿真放置字节码文件的目录
 		-- lib目录：放置依赖的jar包

6.2: Integrate Tomcat into IDEA, create JavaEE projects, and deploy projects.
Note: IDEA community version is not supported. It is recommended to use the ultimate version for professionals. Download URL: https://www.jetbrains.com/idea/download/ other.html

6.3: Integration of Tomcat and IDEA
6.4: Some Tomcat configurations

6.5: New Web Project

6.6: Create a new hello.html file in the Web directory

6.7: The browser test is successful

This concludes this section