springboot的打包方式有很多種。有打成war的，有打成jar的，也有直接提交到github，通過jekins進行打包部署的。這裏主要介紹如何打成jar進行部署。不推薦用war，因為springboot適合前後端分離，打成jar進行部署更合適。

首先需要在application.properties當中配置端口

server.port=8080
# http://localhost:8088/swagger-ui.html

marven的配置文件

<?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.weixin</groupId>
    <artifactId>
 
smallsystem</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>smallsystem</name>
    <description>smallsystem</description>

    <parent>
        <groupId>org.springframework.boot</groupId
 
>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.0.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <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-test</artifactId>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <version>2.2.2</version>
        </dependency>
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger-ui</artifactId>
            <version>2.2.2</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <optional>true</optional>
        </dependency>

    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <mainClass>com.weixin.SmallsystemApplication</mainClass>
                </configuration>
            </plugin>
        </plugins>
    </build>


</project>

註意最下面的build這塊一定要配置否則打jar的時候會說找不 到主類

在啟動類當中加上extends SpringBootServletInitializer並重寫configure方法，這是為了打包springboot項目用的。

package com.weixin;

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;

@SpringBootApplication
public class SmallsystemApplication extends SpringBootServletInitializer{

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

    @Override//為了打包springboot項目
    protected SpringApplicationBuilder configure(
            SpringApplicationBuilder builder) {
        return builder.sources(this.getClass());
    }
}

然後按照順序運行mvn clean再mvn install,我是用idea執行的

然後就會出來我們需要的jar

然後到這個jar的根目錄下執行java -jar smallsystem-0.0.1-SNAPSHOT.jar
這個執行方式windows和linux上都一樣

如果是阿裏雲上的，需要通過阿裏雲把你指定的端口開放，如果是虛擬機上的，需要把防火墻什麽的關掉，開放端口即可。

IDEA中springboot項目打包成jar