Spring中的所有路径匹配问题总结

关于Spring的路径, 问的最多的问题就是如何拦截所有以.do结尾的请求.

大家都是在猜, 网上给出的答案五花八门, 比如: *do, /*do, /**do, /** 等..然而这些都是错的.

正确答案是/**/*.do, 如果要拦截/api下的所有.do结尾的请求, 那么应该使用/api/**/*.do, 以此类推.

言归正传, Spring中无论是handler路径映射, 还是interceptor路径匹配, 还是sping.xml中加载配置文件时使用的”classpath*”, 都使用的是AntMathcer规则( 见PathMatcher文档), 实现类是org.springframework.util.AntPathMatcher. 这里是这个类的官方文档AntPathMatcher文档

里面有这样的说明

匹配符规则

?匹配一个字符

*匹配0或更多字符

**匹配path路径中的0个或更多目录

{spring:[a-z]+}匹配正则[a-z]+并作为一个路径变量, 赋值给变量spring

注意在AntPathMatcher中, 有个路径分隔符的概念, 路径分隔符是不能被 ? 或单个 * 匹配的, 路径分隔符默认是 / , 在匹配类全限定名时, 设置成 . 其他规则不变.

以下是简单的介绍: (注意**可以匹配0个或更多的目录)

规则简介匹配不匹配

/goods/t?st.jsp/goods路径下只相差一个字符的路径/good/test.jsp /goods/text.jsp /goods/tast.jsp等/goods/taast.jsp /google/tast.jsp等

/**/test.jsp匹配任何以test.jsp结尾的路径/test.jsp/goods/test.jsp /my/goods/test.jsp /my/favorite/goods/test.jsp等/goods/abc.jsp等

/**/*.jsp任何以jsp结尾的路径/test.jsp /goods/test.jsp /my/goods/test.jsp等/hello.html /my/hello.html等

/goods/**匹配goods下的所有路径/goods /goods/a.html /goods/a.jsp /goods/test/a.jsp等非/goods/下的路径

/或/goods只匹配/或/goods这一个路径,千万不要误认为是所有路径只有/和/goods其他任何路径

/**匹配所有路径/test/goods/test /test.html /test.jsp /goods/test.jsp /my/goods/test.jsp等无

完整用法可见Sping的托管在github的测试代码AntPathMatcherTests.java

以下是我从中摘取的一部分. 可以不用看这个.

// 完全匹配

assertTrue(pathMatcher.match("test","test"));

assertTrue(pathMatcher.match("/test","/test"));

//不匹配

assertFalse(pathMatcher.match("/test.jpg","test.jpg"));

assertFalse(pathMatcher.match("test","/test"));

// 使用?进行匹配, ?表示匹配一个字符

assertTrue(pathMatcher.match("t?st","test"));

assertTrue(pathMatcher.match("??st","test"));

//不匹配

assertFalse(pathMatcher.match("tes?","tes"));

assertFalse(pathMatcher.match("tes?","testt"));

//使用*进行匹配, *匹配0 更多字符

assertTrue(pathMatcher.match("*","test"));

assertTrue(pathMatcher.match("test*","test"));

assertTrue(pathMatcher.match("test*","testTest"));

assertTrue(pathMatcher.match("test/*","test/Test"));

assertTrue(pathMatcher.match("test/*","test/t"));

assertTrue(pathMatcher.match("*.*","test."));

assertTrue(pathMatcher.match("*.*","test.test.test"));

//以下不匹配

assertFalse(pathMatcher.match("test*","tst"));

assertFalse(pathMatcher.match("test*","tsttest"));

assertFalse(pathMatcher.match("test*","test/"));

assertFalse(pathMatcher.match("test/*","test"));

// 使用?和/一起匹配

assertTrue(pathMatcher.match("/?","/a"));

assertTrue(pathMatcher.match("/?/a","/a/a"));

assertTrue(pathMatcher.match("/a/?","/a/b"));

assertTrue(pathMatcher.match("/??/a","/aa/a"));

assertTrue(pathMatcher.match("/a/??","/a/bb"));

assertTrue(pathMatcher.match("/?","/a"));

// 使用**匹配, 匹配0个或更多目录

assertTrue(pathMatcher.match("/**","/testing/testing"));

assertTrue(pathMatcher.match("/*/**","/testing/testing"));

assertTrue(pathMatcher.match("/**/*","/testing/testing"));

assertTrue(pathMatcher.match("/bla/**/bla","/bla/testing/testing/bla"));

assertTrue(pathMatcher.match("/bla/**/bla","/bla/testing/testing/bla/bla"));

assertTrue(pathMatcher.match("/*bla*/**/bla/**","/XXXblaXXXX/testing/testing/bla/testing/testing/"));

assertTrue(pathMatcher.match("/*bla*/**/bla/*","/XXXblaXXXX/testing/testing/bla/testing"));

assertTrue(pathMatcher.match("*bla*/**/bla/**","XXXblaXXXX/testing/testing/bla/testing/testing"));

assertFalse(pathMatcher.match("*bla*/**/bla/*","XXXblaXXXX/testing/testing/bla/testing/testing"));

assertTrue(pathMatcher.match("/foo/bar/**","/foo/bar")) ;

assertTrue(pathMatcher.match("/{bla}.*","/testing.html"));