SpringBoot2.0版本打war包放入tomcat运行

1. 将打包类型改为war类型
   

2. 为防止乱码，设置打包时的编码为UTF-8
   

3. 设置打成war后的名称
   

4. 启动类继承SpringBootServletInitializer，并覆写 configure() 方法
   

5. 进入项目目录路径，maven命令打包
   

6. 将打好的war包放入tomcat的webapps目录，启动tomcat后就会出现相应的文件夹
   
   注意：
   ①.springboot2.0版本自带的tomcat版本是8.5.X，所以自己使用的tomcat版本不能低于8.5，否则不兼容会报错，我用的是tomcat9.0.8
   ②.如果放入外部的tomcat运行，你在springboot配置文件(.properties或者.yml)里面配置的端口号是不生效的，访问的时候得用tomcat配置文件所配置的端口号。

7. 运行效果,在浏览器输入你要测试的URL地址进行测试

完整的pom依赖，可根据自身的需求进行删除和添加

<?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.example</groupId>
	<artifactId>springbootdemo</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>war</packaging>

	<name>springbootdemo</name>
	<description>Demo project for Spring Boot</description>
	
	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>2.0.4.RELEASE</version>
		<relativePath/>
	</parent>

	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
		<java.version>1.8</java.version>
		<mybatis.springboot.version>1.3.2</mybatis.springboot.version>
		<druid.springboot.version>1.1.9</druid.springboot.version>
		<spring.shiro.version>1.4.0</spring.shiro.version>
		<springboot.log4j.version>1.3.8.RELEASE</springboot.log4j.version>
		<ali.fastjson.version>1.2.47</ali.fastjson.version>
		<swagger.version>2.7.0</swagger.version>
		<okhttp.version>3.10.0</okhttp.version>
	</properties>

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

		<!-- 整合Undertow 服务器
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-undertow</artifactId>
		</dependency>
		-->

        <!-- 整合Aop -->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-aop</artifactId>
		</dependency>
		
		<!-- Spring Boot log4j依赖 -->
        <dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter</artifactId>
		</dependency>
		
		<dependency>
			<groupId>org.mybatis.spring.boot</groupId>
			<artifactId>mybatis-spring-boot-starter</artifactId>
			<version>${mybatis.springboot.version}</version>
		</dependency>

		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
			<scope>runtime</scope>
		</dependency>

		<dependency>
		    <groupId>com.alibaba</groupId>
		    <artifactId>druid-spring-boot-starter</artifactId>
		    <version>${druid.springboot.version}</version>
		</dependency>
		
		<!-- 缓存 -->
		<dependency>
		    <groupId>org.springframework.boot</groupId>
		    <artifactId>spring-boot-starter-cache</artifactId>
		</dependency>
		<!-- shiro-ehcache -->
		<dependency>
		    <groupId>org.apache.shiro</groupId>
		    <artifactId>shiro-ehcache</artifactId>
		    <version>${spring.shiro.version}</version>
		</dependency>
		
		
		<!-- Redis依赖 -->
		<dependency>
		    <groupId>org.springframework.boot</groupId>
		    <artifactId>spring-boot-starter-data-redis</artifactId>
		</dependency>
		<!-- Jedis -->
		<dependency>
		    <groupId>redis.clients</groupId>
		    <artifactId>jedis</artifactId>
		</dependency>
		
		<!-- shiro-spring-boot依赖 -->
		<dependency>
		    <groupId>org.apache.shiro</groupId>
		    <artifactId>shiro-spring-boot-web-starter</artifactId>
		    <version>${spring.shiro.version}</version>
		</dependency>
		
		<dependency>
		    <groupId>org.apache.commons</groupId>
		    <artifactId>commons-lang3</artifactId>
		</dependency>
		
		<dependency>
		    <groupId>com.fasterxml.jackson.core</groupId>
		    <artifactId>jackson-core</artifactId>
		</dependency>
		
		<dependency>
		    <groupId>com.fasterxml.jackson.core</groupId>
		    <artifactId>jackson-databind</artifactId>
		</dependency>
		
		<dependency>
		    <groupId>com.alibaba</groupId>
		    <artifactId>fastjson</artifactId>
		    <version>${ali.fastjson.version}</version>
		</dependency>
		<!-- 整合Swagger需要的依赖 -->
		<dependency>
		    <groupId>io.springfox</groupId>
		    <artifactId>springfox-swagger-ui</artifactId>
		    <version>${swagger.version}</version>
		</dependency>
		
		<dependency>
		    <groupId>io.springfox</groupId>
		    <artifactId>springfox-swagger2</artifactId>
		    <version>${swagger.version}</version>
		</dependency>

		<!-- okhttp3依赖 -->
		<dependency>
		    <groupId>com.squareup.okhttp3</groupId>
		    <artifactId>okhttp</artifactId>
		    <version>${okhttp.version}</version>
		</dependency>

        <!-- spring-boot-starter-logging -->
		<dependency>
		    <groupId>org.springframework.boot</groupId>
		    <artifactId>spring-boot-starter-logging</artifactId>
		</dependency>
        
        <dependency>
		    <groupId>org.projectlombok</groupId>
		    <artifactId>lombok</artifactId>
		</dependency>
		
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</dependency>
		
	</dependencies>

	<build>
        <finalName>springboot</finalName>
		<plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <!-- 主函数执行入口 如果是war包，可不配置-->
                    <mainClass>com.example.demo.SpringbootdemoApplication</mainClass>
                </configuration>
                <!-- 如果是war包，可不配置-->
                <executions>
                    <execution>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
			</plugin>
		</plugins>
	</build>

</project>