自定义弹簧3 mvc：注释RequestMappingHandlerMapping

Question

我正在使用<mvc:annotation-driven/>，我想配置RequestMappingHandlerMapping禁用useTrailingSlashMatch。当我声明另一个RequestMappingHandlerMapping时，我将最终得到2 RequestMappingHandlerMapping。我如何配置RequestMappingHandlerMapping？

Answer 1

正如我们已经指出的那样，这是XML可行的去除mvc:annotation-driven并与整个XML等同替换：

<bean name="handlerAdapter" class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"> 
    <property name="webBindingInitializer"> 
     <bean class="org.springframework.web.bind.support.ConfigurableWebBindingInitializer"> 
      <property name="conversionService" ref="conversionService"></property> 
      <property name="validator"> 
       <bean class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean"/> 
      </property> 
     </bean> 
    </property> 
    <property name="messageConverters"> 
     <list> 
      <bean class="org.springframework.http.converter.ByteArrayHttpMessageConverter"/> 
      <bean class="org.springframework.http.converter.xml.Jaxb2RootElementHttpMessageConverter"/> 
      <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"/> 
      <bean class="org.springframework.http.converter.StringHttpMessageConverter"></bean> 
      <bean class="org.springframework.http.converter.ResourceHttpMessageConverter"></bean> 
      <bean class="org.springframework.http.converter.xml.SourceHttpMessageConverter"></bean> 
      <bean class="org.springframework.http.converter.xml.XmlAwareFormHttpMessageConverter"></bean> 
     </list> 
    </property> 
</bean> 

<bean name="handlerMapping" class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"> 
    <property name="useTrailingSlashMatch" value="true"></property> 
</bean> 

Answer 2

将以下内容添加到您的弹簧配置文件中以切换useTrailingSlashMatch字段。

<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"> 
    <property name="useTrailingSlashMatch" value="true"> 
    </property> 
</bean> 

Answer 3

你能使用Java的配置尽量覆盖RequestMappingHandlerMapping值

@Configuration 
@ComponentScan(basePackages = "base.package.name") 
public class WebAppConfig extends WebMvcConfigurationSupport { 

    @Override 
    @Bean 
    public RequestMappingHandlerMapping requestMappingHandlerMapping() { 
     RequestMappingHandlerMapping rmh = super.requestMappingHandlerMapping(); 
     rmh.setUseTrailingSlashMatch(false); 
     return rmh; 
    } 
} 

Answer 4

如果您想要一个不涉及在Spring中复制功能的解决方案，那么您可以覆盖DisplatcherServlet。在Servlet 3.0容器中，这可能看起来像：

@WebServlet(name="spring-dispatcher", loadOnStartup=1, urlPatterns={"/"}, 
     initParams={ 
      @WebInitParam(name="contextConfigLocation", 
      value="/WEB-INF/spring/spring-dispatcher-servlet.xml")}) 
public class MyDispatcherServlet extends DispatcherServlet { 

    @Override 
    protected void initStrategies(ApplicationContext context) { 
     super.initStrategies(context); 
     for (RequestMappingInfoHandlerMapping handlerMapping 
       : BeanFactoryUtils.beansOfTypeIncludingAncestors(
        context, RequestMappingInfoHandlerMapping.class, true, false).values()) { 

      handlerMapping.setUseTrailingSlashMatch(false); 
     } 
    } 
}