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spring-boot - Spring 服务器不以执行器依赖项启动

问题描述

如果我添加 spring boot 执行器依赖项，我的服务器不会启动。我收到以下错误：

    SEVERE [main] org.apache.catalina.startup.HostConfig.deployDescriptor Error deploying deployment descriptor [tomcat path\conf\Catalina\localhost\test.xml]
            java.lang.IllegalStateException: Error starting child
                    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:720)
                    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:690)
                    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:692)
                    
...
            Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/agromarket]]
                    at org.apache.catalina.util.LifecycleBase.handleSubClassException(LifecycleBase.java:440)
                    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:198)
                    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:717)
                    ... 37 more
            Caused by: java.lang.ClassCastException: org.apache.logging.slf4j.SLF4JLoggerContext cannot be cast to org.apache.logging.log4j.core.LoggerContext
                    at rs.navigator.alexandar.sync.WebAppInitializer.onStartup(WebAppInitializer.java:34)
                    at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:174)
                    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5161)
                    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)

依赖：

<dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>

任何想法为什么？据我所知，即使版本不兼容，服务器仍然应该能够启动。

编辑：我的 WebAppInitializer：

public class WebAppInitializer implements WebApplicationInitializer {

    public void onStartup(ServletContext servletContext) throws ServletException {
        System.out.println(("------------------ Sync context initialized and application started ------------------"));
        AnnotationConfigWebApplicationContext ctx = new AnnotationConfigWebApplicationContext();
        // ctx.register(ServletContextListener.class);

//      ctx.register(SecurityConfiguration.class);
//      ctx.register(SpringFoxConfig.class);
//      ctx.register(WebMvcConfigure.class);
//      ctx.register(JPAConfiguration.class);
//      ctx.setServletContext(servletContext);
        
        // Reconfigure log4j
//      ServletContext sctx = ctx.getServletContext();
        System.setProperty("logFilename", servletContext.getContextPath().substring(1));
        org.apache.logging.log4j.core.LoggerContext sctxLog =
                (org.apache.logging.log4j.core.LoggerContext) LogManager.getContext(false);
            sctxLog.reconfigure();
            
        //Dispatcher servlet
        ServletRegistration.Dynamic servlet = servletContext.addServlet("mvc-dispatcher", new DispatcherServlet(ctx));
        servlet.setLoadOnStartup(1);
        servlet.addMapping("/");
        ctx.close();
    }
}

添加@EnableAutoConfiguration 后的错误堆栈 在此处输入图像描述

标签： spring-bootspring-boot-actuatortomcat9

解决方案

如果你想从 Spring Boot 的自动特性中受益，你的@Configuration类必须用@EnableAutoConfiguration.

由于自动配置已经创建了一个DispatcherServlet绑定到/，您可以安全地将您的WebAppInitializer类更改为：

@SpringBootApplication
public class WebAppInitializer extends SpringBootServletInitializer {

}

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