默认情况下Spring Boot使用了内嵌的Tomcat服务器,项目最终被打成jar包运行,每个jar包可以被看作一个独立的Web服务器。
传统的Web开发,一般会将Web应用打成一个war包,然后将其部署到Web服务器中运行。
Spring Boot也支持传统的部署模式。
开发环境:IntelliJ IDEA 2019.2.2
Spring Boot版本:2.1.8
1、新建一个名称为demo的Spring Boot项目。
2、修改pom.xml文件
下面粗体部分为所加代码,注释掉原来的build节点,该项目最终会打包成一个war-demo的war包。
- <?xml version="1.0" encoding="UTF-8"?>
- <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
- xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
- <modelVersion>4.0.0</modelVersion>
- <parent>
- <groupId>org.springframework.boot</groupId>
- <artifactId>spring-boot-starter-parent</artifactId>
- <version>2.1.8.RELEASE</version>
- <relativePath/> <!-- lookup parent from repository -->
- </parent>
- <groupId>com.example</groupId>
- <artifactId>demo</artifactId>
- <version>0.0.1-SNAPSHOT</version>
- <name>demo</name>
- <description>Demo project for Spring Boot</description>
- <packaging>war</packaging>
- <build>
- <finalName>war-demo</finalName>
- </build>
-
- <properties>
- <java.version>1.8</java.version>
- </properties>
-
- <dependencies>
- <dependency>
- <groupId>org.springframework.boot</groupId>
- <artifactId>spring-boot-starter-web</artifactId>
- </dependency>
-
- <dependency>
- <groupId>org.springframework.boot</groupId>
- <artifactId>spring-boot-starter-tomcat</artifactId>
- <scope>provided</scope>
- </dependency>
- <dependency>
- <groupId>org.springframework.boot</groupId>
- <artifactId>spring-boot-starter-test</artifactId>
- <scope>test</scope>
- </dependency>
-
- </dependencies>
-
- <!-- <build>
- <plugins>
- <plugin>
- <groupId>org.springframework.boot</groupId>
- <artifactId>spring-boot-maven-plugin</artifactId>
- </plugin>
- </plugins>
- </build>-->
-
- </project>
3、修改启动类方法 DemoApplication.cs
继承SpringBootServletInitializer,重写父类configure方法。增加测试用的控制器。
- package com.example.demo;
- import org.springframework.boot.SpringApplication;
- import org.springframework.boot.autoconfigure.SpringBootApplication;
- import org.springframework.boot.builder.SpringApplicationBuilder;
- import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;
- import org.springframework.web.bind.annotation.RequestMapping;
- import org.springframework.web.bind.annotation.RestController;
- @SpringBootApplication
- @RestController
- public class DemoApplication extends SpringBootServletInitializer {
- protected SpringApplicationBuilder configure(SpringApplicationBuilder application){
- return application.sources(DemoApplication.class);
- }
- public static void main(String[] args) {
- SpringApplication.run(DemoApplication.class, args);
- }
- @RequestMapping("/")
- public String test(){
- return "test";
- }
- }
4、先后点击IDEA的Maven窗口的clean和package

到项目的target目录下,可看到生成了一个war-demo.war,把它拷贝到Tomcat的webapps目录下,启动Tomcat,
访问http://localhost:8080/war-demo/,可看到页面输出:test
附,项目结构:
