如果您正在使用Spring 3.2。x和<mvc:annotation-driven />，创建这个小BeanPostProcessor:

package spring;

public final class DoNotTruncateMyUrls implements BeanPostProcessor {
    @Override
    public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException {
        if (bean instanceof RequestMappingHandlerMapping) {
            ((RequestMappingHandlerMapping)bean).setUseSuffixPatternMatch(false);
        }
        return bean;
    }
    @Override
    public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
        return bean;
    }
}

然后把这个放在你的MVC配置xml中:

<bean class="spring.DoNotTruncateMyUrls" />

Spring 5.2.4 (Spring Boot v2.2.6.RELEASE) PathMatchConfigurer。setUseSuffixPatternMatch和ContentNegotiationConfigurer。favorPathExtension已弃用(https://spring.io/blog/2020/03/24/spring-framework-5-2-5-available-now和https://github.com/spring-projects/spring-framework/issues/24179)。

真正的问题是客户端请求特定的媒体类型(比如。com)，而Spring默认添加了所有这些媒体类型。在大多数情况下，您的REST控制器只会生成JSON，因此它不支持所请求的输出格式(.com)。 为了克服这个问题，你应该通过更新你的rest控制器(或特定的方法)来支持“输出”格式(@RequestMapping(produces = mediattype . all_value))，当然也允许像点({username:.+})这样的字符。

例子:

@RequestMapping(value = USERNAME, consumes = MediaType.APPLICATION_JSON_VALUE, produces = MediaType.APPLICATION_JSON_VALUE)
public class UsernameAPI {

    private final UsernameService service;

    @GetMapping(value = "/{username:.+}", consumes = MediaType.APPLICATION_JSON_VALUE, produces = MediaType.ALL_VALUE)
    public ResponseEntity isUsernameAlreadyInUse(@PathVariable(value = "username") @Valid @Size(max = 255) String username) {
        log.debug("Check if username already exists");
        if (service.doesUsernameExist(username)) {
            return ResponseEntity.status(HttpStatus.NO_CONTENT).build();
        }
        return ResponseEntity.notFound().build();
    }
}

Spring 5.3及以上版本将只匹配已注册的后缀(媒体类型)。

解决这个问题的一个非常简单的方法是在后面添加一个斜杠…

例如:

使用:

/somepath/filename.jpg/

而不是:

/somepath/filename.jpg

如果您正在使用Spring 3.2+，那么下面的解决方案将有所帮助。这将处理所有的url，所以肯定比在请求URI映射中应用regex模式更好。喜欢/ somepath /{变量:。+}

在xml文件中定义一个bean

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

标志的用法可以在文档中找到。我把剪报解释一下

解释useRegisteredSuffixPatternMatch据说可以解决这个问题。来自类中的java文档

If enabled, a controller method mapped to "/users" also matches to "/users.json" assuming ".json" is a file extension registered with the provided {@link #setContentNegotiationManager(ContentNegotiationManager) contentNegotiationManager}. This can be useful for allowing only specific URL extensions to be used as well as in cases where a "." in the URL path can lead to ambiguous interpretation of path variable content, (e.g. given "/users/{user}" and incoming URLs such as "/users/john.j.joe" and "/users/john.j.joe.json").

在spring 4.2的路径名中包含电子邮件地址的完整解决方案是

<bean id="contentNegotiationManager"
    class="org.springframework.web.accept.ContentNegotiationManagerFactoryBean">
    <property name="favorPathExtension" value="false" />
    <property name="favorParameter" value="true" />
    <property name="mediaTypes">
        <value>
            json=application/json
            xml=application/xml
        </value>
    </property>
</bean>
<mvc:annotation-driven
    content-negotiation-manager="contentNegotiationManager">
    <mvc:path-matching suffix-pattern="false" registered-suffixes-only="true" />
</mvc:annotation-driven>

将其添加到应用程序xml中

/ somepath /{变量:。+}适用于Java requestMapping标签。