Idea configure web project

Intellij Idea, jdk uses 1.8, mainly to configure the system environment variables, download the compressed package from the official website of tomcat7 on tomcat7 and extract it.

1. Create a simple web project

1. Create a web project

File -> new Project -> select project sdk as 1.6 (if you don't have sdk, please configure it first) -> Next

create project from template page, uncheck any options -> Next

Enter the project name: webDemo -> Next -> Finish

2. Create a Module

Click on the project name webDemo -> right click and select New, select Module -> Module SDK, select 1.6 -> check Web Application (3.1) under JavaEE, note that the version under the window corresponds to 3.1, and Create web.xml is checked -> Next

Enter Module name as firstweb -> Finish

3. Create a good web project

4. Create two folders in the web/WEB_INF directory: classes and lib

classes are used to store the compiled class files, lib is used to store third-party jar packages

5. Configure the folder path

File -> Project Structure (ctrl + shift + Alt + s) or use the toolbar shortcut -> select Modules

-> Select Paths -> Select "Use module compile out path" -> Set both Outputpath and Test output path to the classes folder you just created

Select the Dependencies of the current window -> select the Module SDK as 1.6 -> click the + sign on the right -> select "1 JARS or directories ..."

-> 选择刚刚创建的lib文件夹 -> OK

-> 选择Jar Directory -> OK

-> Apply -> OK

三、配置Tomcat容器

打开菜单Run -> Edit Configurations...

点击 “+” ，选择 “Tomcat Server” -> 选择“Local”

在Name出输入新的服务器名，点击 "Application Server" 后面的 "Configure..."，弹出Application Servers窗口，在Tomcat Home 选择本地安装的tomcat目录 -> OK

在"Run/Debug Configurations"窗口中Name一栏输入服务器的名字tomcat7，在“Server”面板中，勾选取消“After Launch”，设置“HTTP port”和“JMX port”（默认值即可），点击Apply -> OK，至此tomcat配置完毕（左边列表中tomcat图标上小红叉是未部署项目的提示，部署项目后就会消失）。