如何从SOAP CXF web.xml配置迁移到Spring-Boot？

Question

我想将现有的web.xml配置迁移到spring-boot。

但是，这是如何正确完成的？

这是在web.xml：

<listener> 
     <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> 
    </listener> 
    <context-param> 
     <param-name>contextConfigLocation</param-name> 
     <param-value>WEB-INF/applicationContext.xml</param-value> 
    </context-param> 
<servlet> 
    <servlet-name>CXFServlet</servlet-name> 
     <servlet-class>org.apache.cxf.transport.servlet.CXFServlet</servlet-class> 
     <load-on-startup>1</load-on-startup> 
    </servlet> 
    <servlet-mapping> 
     <servlet-name>CXFServlet</servlet-name> 
     <url-pattern>/soap/*</url-pattern> 
    </servlet-mapping> 

这是如何被转化为基于注解春天启动的配置？我试过如下：

@Configuration 
@EnableAutoConfiguration 
public class AppConfig extends SpringBootServletInitializer { 
    @Override 
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) { 
     return application.sources(AppConfig.class); 
    } 


    @Bean 
    public CXFServlet cxf() { 
     return new CXFServlet(); 
    } 
} 

但在Tomcat启动时，以下异常被抛出：

Caused by: java.lang.NullPointerException: null 
    at org.apache.cxf.transport.servlet.CXFNonSpringServlet.destroy(CXFNonSpringServlet.java:184) 
    at org.apache.cxf.transport.servlet.CXFServlet.onApplicationEvent(CXFServlet.java:166) 
    at org.apache.cxf.transport.servlet.CXFServlet.onApplicationEvent(CXFServlet.java:41) 
    at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:98) 
    at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:333) 
    at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:776) 
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.finishRefresh(EmbeddedWebApplicationContext.java:142) 
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:485) 
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:120) 
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:648) 
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:311) 
    at org.springframework.boot.builder.SpringApplicationBuilder.run(SpringApplicationBuilder.java:130) 
    at org.springframework.boot.context.web.SpringBootServletInitializer.createRootApplicationContext(SpringBootServletInitializer.java:89) 
    at org.springframework.boot.context.web.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:51) 
    at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:175) 
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5444) 
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) 

Answer 1

您应该使用ServletRegistrationBean为CXFServlet。这将确保它已注册到servlet容器并允许您配置URL模式等。例如：

@Bean 
public ServletRegistrationBean cxf() { 
    return new ServletRegistrationBean(new CXFServlet(), "/soap/*"); 
}