springboot项目怎么部署到外部tomcat

spring-boot项目中，默认提供内嵌的tomcat，所以打包直接生成jar包，用Java -jar命令就可以启动。

但是也有一定的需求，会使用外部tomcat来部署项目。下面来看：

1.新建项目boot-tomcat-test

2.pom依赖：(添加spring-boot-starter-tomcat依赖，打包方式为war)

<?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>boot-tomcat</groupId>
    <artifactId>com.boot.tomcat</artifactId>
    <version>1.0-SNAPSHOT</version>

    <!--父依赖包-->
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.3.2.RELEASE</version>
        <relativePath/>
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <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>
        </dependency>
    </dependencies>
    <!-- tomcat 打war包 -->
    <packaging>war</packaging>
</project>

3.启动App继承SpringBootServletInitializer类，并重写configure方法

package boottest;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.context.web.SpringBootServletInitializer;

/**
 * App类描述:
 *  继承SpringBootServletInitializer，可以用tomcat部署
 * @author yangzhenlong
 * @since 2017/5/3
 */
@SpringBootApplication
public class App extends SpringBootServletInitializer{

    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
        return builder.sources(App.class);
    }

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

4.Controller：

package boottest;

import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

/**
 * IndexController类描述:
 *
 * @author yangzhenlong
 * @since 2017/5/3
 */
@RestController
public class IndexController {

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

5.配置项目到tomcat，然后启动tomcat

访问：http://localhost:8080/

ok了！