启动类
@SpringBootApplication
public class MypracticeApplication extends SpringBootServletInitializer {
public static void main(String[] args) {
ApplicationContext applicationContext = SpringApplication.run(MypracticeApplication.class, args);
applicationContext.getBean(SocketServer.class).start();
}
@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
return application.sources(MypracticeApplication.class);
}
}
@Service
@Slf4j
public class SocketServer {
public void start() {
log.info("=========");
}
}
pom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 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>2.2.1.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>mypractice</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<name>mypractice</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.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-thymeleaf</artifactId>-->
<!--</dependency>-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>2.1.0</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<!-- druid连接池 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid-spring-boot-starter</artifactId>
<version>1.1.10</version>
</dependency>
<!-- lombok插件 -->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
<!-- fastjson -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.31</version>
</dependency>
<!-- websocket -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-websocket</artifactId>
</dependency>
<!-- spring boot集成redis -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-pool2</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.session</groupId>
<artifactId>spring-session-data-redis</artifactId>
</dependency>
<!-- 实现多个端口 -->
<!--<dependency>-->
<!--<groupId>commons-lang</groupId>-->
<!--<artifactId>commons-lang</artifactId>-->
<!--</dependency>-->
<dependency>
<groupId>org.java-websocket</groupId>
<artifactId>Java-WebSocket</artifactId>
<version>1.4.0</version>
</dependency>
<!-- 阿里云sdk -->
<dependency>
<groupId>com.aliyun</groupId>
<artifactId>aliyun-java-sdk-core</artifactId>
<version>4.1.0</version>
</dependency>
<dependency>
<groupId>com.aliyun</groupId>
<artifactId>aliyun-java-sdk-dysmsapi</artifactId>
<version>1.1.0</version>
</dependency>
<!-- pagehelper分页工具 -->
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper-spring-boot-starter</artifactId>
<version>1.2.5</version>
</dependency>
<!--极光推送 -->
<dependency>
<groupId>cn.jpush.api</groupId>
<artifactId>jiguang-common</artifactId>
<version>1.1.7</version>
</dependency>
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.8.6</version>
</dependency>
<!-- junit jupiter -->
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-api</artifactId>
<version>5.5.2</version>
<!--此处test 是关键，表明底层日志实现框架-也即该依赖在test 代码编译、运行时才起作用-->
<scope>test</scope>
</dependency>
<!--junit 5 需要参数化测试-->
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-params</artifactId>
<version>5.5.2</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
问题：项目使用Springboot内置tomcat,在本地跑项目的时候SocketServer可以运行打印，但是部署在外置tomcat上就不打印了。为什么？
，
，解决了
因为启动类在打成war后放置在外部容器tomcat上就不能依赖于Application的main函数了，不会执行，所以它不会执行添加在启动类里的方法
。当然也可以打包成jar包这样就能使用main函数类，调用springboot内置tomcat。所以只能改变思路用监听的方式或者别的方式https://blog.csdn.net/limingcai168/article/details/92797258