SpringBoot 项目打包成war在Tomcat上运行

Spring Boot是由Pivotal团队提供的全新框架，其设计目的是用来简化新Spring应用的初始搭建以及开发过程。该框架使用了特定的方式来进行配置，从而使开发人员不再需要定义样板化的配置。通过这种方式，Spring Boot致力于在蓬勃发展的快速应用开发领域(rapid application development)成为领导者。

SpringBoot的运行是在Tomcat的基础上运行的，那么如何将SpringBoot 项目打包成war发布到Tomcat服务器呢？

SpringBoot pom.xml

<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.luo</groupId>
    <artifactId>SpringBootTest</artifactId>
    <version>1.0-SNAPSHOT</version>
     <packaging>war</packaging>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.7.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <dependencies>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
        <version>1.5.7.RELEASE</version>
        <!-- 排除Spring 自带的Tomcat 否则将会显示404错误-->
        <exclusions>
            <exclusion>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-tomcat</artifactId>
            </exclusion>
        </exclusions>
    </dependency>


        <!--支持jsp解析-->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.tomcat.embed</groupId>
            <artifactId>tomcat-embed-jasper</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.tomcat</groupId>
            <artifactId>tomcat-jsp-api</artifactId>
        </dependency>


    </dependencies>
</project>

SpringBoot 启动类

@SpringBootApplication
@RestController
@ComponentScan
public class ShopApplication extends SpringBootServletInitializer {


    //重写configure 从而使Tomcat识别启动类
    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
        return application.sources(ShopApplication.class);
    }

    public static void main(String[] args) {
        SpringApplication.run(ShopApplication.class, args);
    }

    }

Controller 部分

@Controller
public class MainController {

    @RequestMapping("/")
     public String index()
    {
        return "1";
    }
}

使用mvn clean package 将项目打包成war文件

运行tomcat,成功。