SpringMVC初学---spring3.1新特性_is less specific than any other pattern.-优快云博客

本文链接：https://blog.youkuaiyun.com/marshal9/article/details/50582689

本文介绍Spring 3.1中URL映射的改进机制，包括RequestMappingHandlerMapping如何决定请求处理方法，以及不同URL模式的具体优先级规则。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

Prior to Spring 3.1, type and method-level request mappings were examined in two separate stages — acontroller was selected first by theDefaultAnnotationHandlerMappingand the actual method toinvoke was narrowed down second by theAnnotationMethodHandlerAdapter.

3.1之前,根据url映射到方法需要经过两步骤1,根据 DefaultAnnotationHandlerMapping 找到controller, 2, 根据 AnnotationMethodHandlerAdapter. 找到method

With the new support classes in Spring 3.1, theRequestMappingHandlerMappingis the only placewhere a decision is made about which method should process the request

3.1之后只有一步,RequestMappingHandlerMapping,是唯一一个地方决定哪个方法处理传过来的请求

/hotels/{hotel}/* has 1 URI variable and 1 wild card and is considered more specific than/hotels/{hotel}/**which as 1 URI variable and 2 wild cards.

拥有一个URI变量和一个*号的相比于一个URI变量2*号的更特殊

If two patterns have the same count, the one that is longer is considered more specific. For example/foo/bar* is longer and considered more specific than/foo/*.

相同的URI变量,相同的*号,长的更特殊

When two patterns have the same count and length, the pattern with fewer wild cards is consideredmore specific. For example/hotels/{hotel}is more specific than/hotels/*.

/hotels/{hotel} (特殊)

/hotels/*

相同的长度和相同的URI变量个数,*号少的特殊

• The default mapping pattern /**is less specific than any other pattern.For example/api/{a}/

{b}/{c} is more specific.

/**

/api/{a}/{b}/{c}(特殊)

• A prefix patternsuch as /public/** is less specific than any other pattern that doesn’t contain

double wildcards. For example/public/path3/{a}/{b}/{c}is more specific.

/public/path3/{a}/{b}/{c}(特殊 specific)

/public/**

For the full details seeAntPatternComparatorinAntPathMatcher