Spring MVC @RequestMapping注释的不区分大小写映射

问题描述

我的Controller中有多个@RequestMapping注释。

I have Controller having multiple @RequestMapping annotations in it.

@Controller
public class SignUpController {

 @RequestMapping("signup")
 public String showSignUp() throws Exception {
    return "somejsp";
 }

 @RequestMapping("fullSignup")
 public String showFullSignUp() throws Exception {
    return "anotherjsp";
 }

 @RequestMapping("signup/createAccount")
 public String createAccount() throws Exception {
    return "anyjsp";
 }
}

如何将这些@RequestMapping映射到不区分大小写。即如果我使用/ fullsignup或/ fullSignup，我应该得到anotherjsp。但现在这种情况并没有发生。只有/ fullSignup工作正常。

How can I map these @RequestMapping to case insensitive. i.e. if I use "/fullsignup" or "/fullSignup" I should get "anotherjsp". But this is not happening right now. Only "/fullSignup" is working fine.

我尝试过扩展RequestMappingHandlerMapping但没有成功。我也尝试过AntPathMatcher，就像那个提到的那个人在这个论坛上有另一个问题，但它也不适用于@RequestMapping注释。

I've tried extending RequestMappingHandlerMapping but no success. I've also tried AntPathMatcher like the guy mentioned there is another question on this forum but its also not working for @RequestMapping annotation.

调试控制台

Debugging console

服务器启动时的输出控制台。

Output console when server is up.

我添加了两张显示问题的图片。我已经尝试了下面提到的两种解决方案。控制台说它映射了小写的URL，但是当我请求访问带有小写url的方法时，它表明存储值的原始映射包含MixCase URLS。

I've added two images which shows the problem. I've tried both the solutions mentioned below. The console says that it mapped lowercased URLS but when I request to access a method with lowercase url then it shows that the original map where the values are stored stilled contained MixCase URLS.

推荐答案

我如何在带有注释映射的Spring MVC中使用不区分大小写的URL？我只是在控制器和请求方法级别上使用@RequestMapping的组合尝试了它并且它干净利落，我只是在这里为Spring 3.1.2复制它：

One of the approaches in How can I have case insensitive URLS in Spring MVC with annotated mappings works perfectly. I just tried it with combinations of @RequestMapping at the level of controller and request methods and it has worked cleanly, I am just reproducing it here for Spring 3.1.2:

CaseInsensitivePathMatcher：

The CaseInsensitivePathMatcher:

import java.util.Map;

import org.springframework.util.AntPathMatcher;

public class CaseInsensitivePathMatcher extends AntPathMatcher {
    @Override
    protected boolean doMatch(String pattern, String path, boolean fullMatch, Map<String, String> uriTemplateVariables) {
        return super.doMatch(pattern.toLowerCase(), path.toLowerCase(), fullMatch, uriTemplateVariables);
    }
}

使用Spring MVC注册此路径匹配器，删除< mvc：annotation-driven /> 注释，并替换为以下内容，进行适当配置：

Registering this path matcher with Spring MVC, remove the <mvc:annotation-driven/> annotation, and replace with the following, configure appropriately:

<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 name="providerClass" value="org.hibernate.validator.HibernateValidator"></property>
                </bean>
            </property>
        </bean>
    </property>
    <property name="messageConverters">
        <list>
            <ref bean="byteArrayConverter"/>
            <ref bean="jaxbConverter"/>
            <ref bean="jsonConverter"/>
            <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="byteArrayConverter" class="org.springframework.http.converter.ByteArrayHttpMessageConverter"></bean>
<bean name="jaxbConverter" class="org.springframework.http.converter.xml.Jaxb2RootElementHttpMessageConverter"></bean>
<bean name="jsonConverter" class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"></bean>
<bean name="caseInsensitivePathMatcher" class="org.bk.lmt.web.spring.CaseInsensitivePathMatcher"/>
<bean name="handlerMapping" class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping">
    <property name="pathMatcher" ref="caseInsensitivePathMatcher"></property>
</bean>

使用@Configuration更轻松，更干净：

Or even more easily and cleanly using @Configuration:

@Configuration
@ComponentScan(basePackages="org.bk.webtestuuid")
public class WebConfiguration extends WebMvcConfigurationSupport{

    @Bean
    public PathMatcher pathMatcher(){
        return new CaseInsensitivePathMatcher();
    }
    @Bean
    public RequestMappingHandlerMapping requestMappingHandlerMapping() {
        RequestMappingHandlerMapping handlerMapping = new RequestMappingHandlerMapping();
        handlerMapping.setOrder(0);
        handlerMapping.setInterceptors(getInterceptors());
        handlerMapping.setPathMatcher(pathMatcher());
        return handlerMapping;
    }
}

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