在 tomcat 上部署为 WAR 的 Spring Boot REST 应用程序不起作用

Question

创建了一个 Spring Boot REST 应用程序。

作为 Spring 启动应用运行
在 Eclipse 中以spring boot application 运行它。效果很好。
REST API 正在使用 URL - http://localhost:8080/schools

在 tomcat 上部署为 WAR

我按照以下步骤操作

1. 主类扩展SpringServletContainerInitializer

    @SpringBootApplication
    public class RmsBackendApplication extends SpringServletContainerInitializer {

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

1. 在pom.xml 中添加了开始类条目

    <properties>
        <java.version>1.8</java.version>
        <start-class>com.codingParkFun.rmsbackend.RmsBackendApplication</start-class>
    </properties>

1. 添加了启动 tomcat 依赖项

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

4. 很少有文档说覆盖SpringServletContainerInitializer 的configure 方法。但就我而言，SpringServletContainerInitializer 没有configure 方法。我下载了spring tools 4.0

5. 使用maven install 生成的包。生成的war包名称为rms-0.0.1-SNAPSHOT.war

6. 在tomcat上部署war包（版本9.0.27）

7. 访问 REST API URL - http://localhost:8080/rms-0.0.1-SNAPSHOT/schools

输出

8. Tomcat localhost 日志如下：

09-Nov-2019 11:13:31.013 INFO [main] org.apache.catalina.core.ApplicationContext.log 1 Spring WebApplicationInitializers detected on classpath
09-Nov-2019 11:13:32.048 INFO [main] org.apache.catalina.core.ApplicationContext.log ContextListener: contextInitialized()
09-Nov-2019 11:13:32.048 INFO [main] org.apache.catalina.core.ApplicationContext.log SessionListener: contextInitialized()
09-Nov-2019 11:13:32.052 INFO [main] org.apache.catalina.core.ApplicationContext.log ContextListener: attributeAdded('StockTicker', 'async.Stockticker@6231bb88')
09-Nov-2019 11:16:44.566 INFO [Thread-4] org.apache.catalina.core.ApplicationContext.log SessionListener: contextDestroyed()
09-Nov-2019 11:16:44.566 INFO [Thread-4] org.apache.catalina.core.ApplicationContext.log ContextListener: contextDestroyed()
09-Nov-2019 11:19:59.676 INFO [main] org.apache.catalina.core.ApplicationContext.log 1 Spring WebApplicationInitializers detected on classpath
09-Nov-2019 11:20:12.722 INFO [main] org.apache.catalina.core.ApplicationContext.log ContextListener: contextInitialized()
09-Nov-2019 11:20:12.723 INFO [main] org.apache.catalina.core.ApplicationContext.log SessionListener: contextInitialized()
09-Nov-2019 11:20:12.728 INFO [main] org.apache.catalina.core.ApplicationContext.log ContextListener: attributeAdded('StockTicker', 'async.Stockticker@2420e962')
09-Nov-2019 11:27:44.515 INFO [main] org.apache.catalina.core.ApplicationContext.log 1 Spring WebApplicationInitializers detected on classpath
09-Nov-2019 11:27:45.490 INFO [main] org.apache.catalina.core.ApplicationContext.log ContextListener: contextInitialized()
09-Nov-2019 11:27:45.490 INFO [main] org.apache.catalina.core.ApplicationContext.log SessionListener: contextInitialized()
09-Nov-2019 11:27:45.494 INFO [main] org.apache.catalina.core.ApplicationContext.log ContextListener: attributeAdded('StockTicker', 'async.Stockticker@1c7da28')
09-Nov-2019 11:38:48.705 INFO [http-nio-8080-exec-7] org.apache.catalina.core.ApplicationContext.log 1 Spring WebApplicationInitializers detected on classpath

不确定应用程序 REST API 是否工作。请指导。

Answer 1

您需要扩展 SpringBootServletInitializer，而不是 SpringServletContainerInitializer。然后你可以像第 4 步中所说的那样覆盖 configure 方法，如下所示：

@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
    return application.sources(RmsBackendApplication.class);
}

希望对你有帮助！