春季启动 DispatcherServlet

Question

我有一个 spring boot 项目（带有嵌入式 jetty9 的可执行 jar）。

我应该注册 2 个不同的 DispatcherServlet。我是这样做的：

@Bean
public ServletRegistrationBean dispatcherServlet() {
    DispatcherServlet servlet = new DispatcherServlet();
    ServletRegistrationBean sr = new ServletRegistrationBean(servlet, "/graniteamf/*");
    return sr;
}

@Bean
    @Order(2)
    public ServletRegistrationBean customDispatcherServlet() {
        DispatcherServlet servlet = new DispatcherServlet();
        ServletRegistrationBean sr = new ServletRegistrationBean(servlet, "/client/*");
        return sr;
    }

不幸的是，当我尝试启动应用程序时，我遇到了这个异常：

17/02/2015 18:24:04  INFO ApacheAsyncTransport:54 - Starting Apache HttpAsyncClient transport...
17/02/2015 18:24:04  INFO ApacheAsyncTransport:54 - Apache HttpAsyncClient transport started.
17/02/2015 18:24:04 DEBUG Application:173 - Inizializzazione identity
17/02/2015 18:24:04 ERROR DispatcherServlet:497 - Context initialization failed
org.springframework.beans.factory.BeanDefinitionStoreException: IOException parsing XML document from ServletContext resource [/WEB-INF/dispatcherServlet-servlet.xml]; nested exception is java.io.FileNotFoundException: Could not open ServletContext resource [/WEB-INF/dispatcherServlet-servlet.xml]
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:344)
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:304)
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:181)
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:217)
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:188)
    at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:125)
    at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:94)
    at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:129)
    at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:537)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:452)
    at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:663)
    at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:629)
    at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:677)
    at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:548)
    at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:489)
    at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136)
    at javax.servlet.GenericServlet.init(GenericServlet.java:244)
    at org.eclipse.jetty.servlet.ServletHolder.initServlet(ServletHolder.java:612)
    at org.eclipse.jetty.servlet.ServletHolder.initialize(ServletHolder.java:395)
    at org.eclipse.jetty.servlet.ServletHandler.initialize(ServletHandler.java:871)
    at org.springframework.boot.context.embedded.jetty.JettyEmbeddedWebAppContext$JettyEmbeddedServletHandler.deferredInitialize(JettyEmbeddedWebAppContext.java:46)
    at org.springframework.boot.context.embedded.jetty.JettyEmbeddedWebAppContext.deferredInitialize(JettyEmbeddedWebAppContext.java:36)
    at org.springframework.boot.context.embedded.jetty.JettyEmbeddedServletContainer.handleDeferredInitialize(JettyEmbeddedServletContainer.java:162)
    at org.springframework.boot.context.embedded.jetty.JettyEmbeddedServletContainer.start(JettyEmbeddedServletContainer.java:109)
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.startEmbeddedServletContainer(EmbeddedWebApplicationContext.java:287)
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.finishRefresh(EmbeddedWebApplicationContext.java:141)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:483)
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118)
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:691)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:321)
    at it.pianetatecno.gsmgateway.Application.main(Application.java:61)
Caused by: java.io.FileNotFoundException: Could not open ServletContext resource [/WEB-INF/dispatcherServlet-servlet.xml]
    at org.springframework.web.context.support.ServletContextResource.getInputStream(ServletContextResource.java:141)
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:330)
    ... 30 more
17/02/2015 18:24:05 ERROR SpringApplication:339 - Application startup failed
org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Jetty servlet container
    at org.springframework.boot.context.embedded.jetty.JettyEmbeddedServletContainer.start(JettyEmbeddedServletContainer.java:119)
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.startEmbeddedServletContainer(EmbeddedWebApplicationContext.java:287)
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.finishRefresh(EmbeddedWebApplicationContext.java:141)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:483)
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118)
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:691)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:321)
    at it.pianetatecno.gsmgateway.Application.main(Application.java:61)

我有两个问题：

1. dispatcherServlet 的 xml 文件是强制性的吗？
2. Spring 希望在哪个文件夹中找到这个文件？我尝试将其放入资源/WEB-INF，但它不起作用。

编辑的问题

这是我在 Spring Boot 中的主要方法：

@SpringBootApplication

公共类应用程序{ 私有静态 Logger log = Logger.getLogger(Application.class);

private static ApplicationContext context;

public static void main(String[] args) {        
    SpringApplication app = new SpringApplication(Application.class);
    app.setShowBanner(false);
    context = app.run(args);
    app.setShowBanner(false);
}

谢谢

Answer 1

您不需要 XML，但您需要在 servlet 上设置 ApplicationContext。如果它是 @Bean（就像在 Spring Boot 中的 DispatcherServletAutoConfiguration 中一样），Spring 会为您执行此操作，或者我想您可以手动执行此操作。