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？
仔细看Tomcat的启动日志，有加载你的项目吗？加载过程有异常吗？
springboot以war包部署，还需要移除自带的Tomcat
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
嗯嗯，有加载，我tomcat就放了一个项目；异常也没有；现在加上了tomcat，但是还是没有打印，这是外置tomcat 部署的日志
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.2.1.RELEASE)
2019-12-03 15:18:45.825 INFO 8256 --- [ost-startStop-1] c.e.mypractice.MypracticeApplication : Starting MypracticeApplication v0.0.1-SNAPSHOT on zhangxiaohuideMacBook-Pro.local with PID 8256 (/usr/local/Cellar/tomcat@8/8.5.33/libexec/webapps/mypractice-0.0.1-SNAPSHOT/WEB-INF/classes started by zhangxiaohui in /usr/local/Cellar/tomcat@8/8.5.33/libexec/bin)
2019-12-03 15:18:45.830 INFO 8256 --- [ost-startStop-1] c.e.mypractice.MypracticeApplication : No active profile set, falling back to default profiles: default
2019-12-03 15:18:46.844 INFO 8256 --- [ost-startStop-1] .s.d.r.c.RepositoryConfigurationDelegate : Multiple Spring Data modules found, entering strict repository configuration mode!
2019-12-03 15:18:46.851 INFO 8256 --- [ost-startStop-1] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data repositories in DEFAULT mode.
2019-12-03 15:18:46.894 INFO 8256 --- [ost-startStop-1] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 11ms. Found 0 repository interfaces.
2019-12-03 15:18:47.100 WARN 8256 --- [ost-startStop-1] o.m.s.mapper.ClassPathMapperScanner : No MyBatis mapper was found in '[com.example.mypractice]' package. Please check your configuration.
2019-12-03 15:18:47.498 INFO 8256 --- [ost-startStop-1] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration' of type [org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2019-12-03 15:18:47.686 INFO 8256 --- [ost-startStop-1] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 1820 ms
2019-12-03 15:18:48.481 INFO 8256 --- [ost-startStop-1] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService
2019-12-03 15:18:48.486 INFO 8256 --- [ost-startStop-1] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService 'clientTaskPool'
2019-12-03 15:18:49.032 INFO 8256 --- [ost-startStop-1] c.a.d.s.b.a.DruidDataSourceAutoConfigure : Init DruidDataSource
2019-12-03 15:18:49.166 INFO 8256 --- [ost-startStop-1] com.alibaba.druid.pool.DruidDataSource : {dataSource-1} inited
2019-12-03 15:18:49.897 INFO 8256 --- [ost-startStop-1] io.lettuce.core.EpollProvider : Starting without optional epoll library
2019-12-03 15:18:49.900 INFO 8256 --- [ost-startStop-1] io.lettuce.core.KqueueProvider : Starting without optional kqueue library
2019-12-03 15:18:50.802 INFO 8256 --- [ost-startStop-1] s.a.ScheduledAnnotationBeanPostProcessor : No TaskScheduler/ScheduledExecutorService bean found for scheduled processing
2019-12-03 15:18:50.821 INFO 8256 --- [ost-startStop-1] c.e.mypractice.MypracticeApplication : Started MypracticeApplication in 5.823 seconds (JVM running for 11.514)
03-Dec-2019 15:18:50.863 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployWAR Deployment of web application archive [/usr/local/Cellar/tomcat@8/8.5.33/libexec/webapps/mypractice-0.0.1-SNAPSHOT.war] has finished in [10,781] ms
03-Dec-2019 15:18:50.864 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory [/usr/local/Cellar/tomcat@8/8.5.33/libexec/webapps/docs]
03-Dec-2019 15:18:50.887 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [/usr/local/Cellar/tomcat@8/8.5.33/libexec/webapps/docs] has finished in [22] ms
03-Dec-2019 15:18:50.887 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory [/usr/local/Cellar/tomcat@8/8.5.33/libexec/webapps/manager]
03-Dec-2019 15:18:50.920 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [/usr/local/Cellar/tomcat@8/8.5.33/libexec/webapps/manager] has finished in [33] ms
03-Dec-2019 15:18:50.921 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory [/usr/local/Cellar/tomcat@8/8.5.33/libexec/webapps/examples]
03-Dec-2019 15:18:51.131 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [/usr/local/Cellar/tomcat@8/8.5.33/libexec/webapps/examples] has finished in [211] ms
03-Dec-2019 15:18:51.131 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory [/usr/local/Cellar/tomcat@8/8.5.33/libexec/webapps/ROOT]
03-Dec-2019 15:18:51.146 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [/usr/local/Cellar/tomcat@8/8.5.33/libexec/webapps/ROOT] has finished in [14] ms
03-Dec-2019 15:18:51.146 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory [/usr/local/Cellar/tomcat@8/8.5.33/libexec/webapps/host-manager]
03-Dec-2019 15:18:51.164 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [/usr/local/Cellar/tomcat@8/8.5.33/libexec/webapps/host-manager] has finished in [18] ms
03-Dec-2019 15:18:51.168 信息 [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["http-nio-8085"]
03-Dec-2019 15:18:51.177 信息 [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["ajp-nio-8009"]
03-Dec-2019 15:18:51.179 信息 [main] org.apache.catalina.startup.Catalina.start Server startup in 11159 ms
这是本地启动启动类打印日志
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.2.1.RELEASE)
2019-12-03 15:23:37.345 INFO 8337 --- [ main] c.e.mypractice.MypracticeApplication : Starting MypracticeApplication on zhangxiaohuideMacBook-Pro.local with PID 8337 (/Users/zhangxiaohui/IDEA-project/mypractice/target/classes started by zhangxiaohui in /Users/zhangxiaohui/IDEA-project/mypractice)
2019-12-03 15:23:37.348 INFO 8337 --- [ main] c.e.mypractice.MypracticeApplication : No active profile set, falling back to default profiles: default
2019-12-03 15:23:38.214 INFO 8337 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Multiple Spring Data modules found, entering strict repository configuration mode!
2019-12-03 15:23:38.220 INFO 8337 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data repositories in DEFAULT mode.
2019-12-03 15:23:38.251 INFO 8337 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 12ms. Found 0 repository interfaces.
2019-12-03 15:23:38.423 WARN 8337 --- [ main] o.m.s.mapper.ClassPathMapperScanner : No MyBatis mapper was found in '[com.example.mypractice]' package. Please check your configuration.
2019-12-03 15:23:38.717 INFO 8337 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration' of type [org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2019-12-03 15:23:38.955 INFO 8337 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8083 (http)
2019-12-03 15:23:38.964 INFO 8337 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2019-12-03 15:23:38.965 INFO 8337 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.27]
2019-12-03 15:23:39.066 INFO 8337 --- [ main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2019-12-03 15:23:39.066 INFO 8337 --- [ main] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 1634 ms
2019-12-03 15:23:39.603 INFO 8337 --- [ main] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService
2019-12-03 15:23:39.611 INFO 8337 --- [ main] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService 'clientTaskPool'
2019-12-03 15:23:39.963 INFO 8337 --- [ main] c.a.d.s.b.a.DruidDataSourceAutoConfigure : Init DruidDataSource
2019-12-03 15:23:40.028 INFO 8337 --- [ main] com.alibaba.druid.pool.DruidDataSource : {dataSource-1} inited
2019-12-03 15:23:41.314 INFO 8337 --- [ main] io.lettuce.core.EpollProvider : Starting without optional epoll library
2019-12-03 15:23:41.315 INFO 8337 --- [ main] io.lettuce.core.KqueueProvider : Starting without optional kqueue library
2019-12-03 15:23:42.216 INFO 8337 --- [ main] s.a.ScheduledAnnotationBeanPostProcessor : No TaskScheduler/ScheduledExecutorService bean found for scheduled processing
2019-12-03 15:23:42.260 INFO 8337 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8083 (http) with context path ''
2019-12-03 15:23:42.264 INFO 8337 --- [ main] c.e.mypractice.MypracticeApplication : Started MypracticeApplication in 5.658 seconds (JVM running for 6.897)
2019-12-03 15:23:42.266 INFO 8337 --- [ main] c.e.mypractice.threadpool.SocketServer : =========
有打印
你把这个 SocketService 的启动放到监听器里面试试看。
监听器，可是没写监听器诶
，
为什么Springboot内置tomcat本地可以，放到外置tomcat就不行了
我现在把内置的移除了加了
org.springframework.boot
spring-boot-starter-tomcat
provided
打包到外置tomcat运行就是不打印
[/quote]
你新建一个包（spring可以扫描到的），把SocketService 定义在里面，添加 @Component 注解。不要直接定义在MypracticeApplication 中。然后再新建一个监听器，试试看。
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationListener;
import org.springframework.context.event.ContextRefreshedEvent;
import org.springframework.stereotype.Component;
@Component
public class ApplicationStartListener implements ApplicationListener<ContextRefreshedEvent>{
@Autowired
private SocketService socketService;
@Override
public void onApplicationEvent(ContextRefreshedEvent event) {
this.socketService.start();
}
}
，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