SpringMVC URL 正则表达式

原文地址 https://docs.spring.io/spring/docs/current/spring-framework-reference/html/mvc.html

带有正则表达式的URL地址

有的时候你需要精确的定义URL变量，考虑一下这个URL"/spring-web/spring-web-3.0.5.jar",如何分解为多个部分？

@RequestMapping注解支持在URL地址中使用正则表达式变量，语法是 {varName:regex} 第一部分定义了变量的名称，第二部分定义了正则表达式，例如：

@RequestMapping("/spring-web/{symbolicName:[a-z-]+}-{version:\\d\\.\\d\\.\\d}{extension:\\.[a-z]+}")public void handle(@PathVariable String version, @PathVariable String extension) {    // ...}

URI Template Patterns with Regular Expressions

Sometimes you need more precision in defining URI template variables. Consider the URL "/spring-web/spring-web-3.0.5.jar". How do you break it down into multiple parts?

The @RequestMapping annotation supports the use of regular expressions in URI template variables. The syntax is {varName:regex} where the first part defines the variable name and the second - the regular expression. For example:

@RequestMapping("/spring-web/{symbolicName:[a-z-]+}-{version:\\d\\.\\d\\.\\d}{extension:\\.[a-z]+}")public void handle(@PathVariable String version, @PathVariable String extension) {    // ...}