在tomcat上部署为WAR的Spring boot REST应用程序不工作

Question

创建了一个spring boot REST应用程序。

在Eclipse中作为Spring boot Application运行时，作为Spring boot App
运行。它工作得很好。
REST API使用URL-http://localhost:8080/schools

在tomcat上部署为WAR

我执行了以下步骤

1. 主类扩展SpringServletContainerInitializer

    @SpringBootApplication
    public class RmsBackendApplication extends SpringServletContainerInitializer {

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

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

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

很少有文档说重写SpringServletContainerInitializer的configure方法。但在我的示例中，SpringServletContainerInitializer没有Configure方法。我下载了spring tools 4.0

使用maven install生成包。生成的War包名称为rms-0.0.1-snapshot.War

在tomcat（版本9.0.27)上部署了war包

访问REST API URL-http://localhost:8080/rms-0.0.1-snapshot/schools

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

Answer 1

您需要扩展SpringBootServletInitializer，而不是SpringServletContainerInitializer。然后可以重写configure method,如步骤4中所述,如下所示：

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

希望有帮助！