cn.tom.mvc.ext

类 AntPathMatcher

java.lang.Object

cn.tom.mvc.ext.AntPathMatcher

所有已实现的接口:

PathMatcher

public class AntPathMatcher
extends Object
implements PathMatcher

Ant-style的路径匹配工具类

字段概要

字段

限定符和类型	字段和说明
static String	DEFAULT_PATH_SEPARATOR Default path separator: "/"

构造器概要

构造器

构造器和说明
AntPathMatcher()

方法概要

方法

限定符和类型	方法和说明
String	combine(String pattern1, String pattern2) 组合成一个新的pattern, 新的pattern 满足第一个pattern Combines two patterns into a new pattern that is returned.
boolean	doMatch(String pattern, String path, boolean fullMatch, Map<String,String> uriTemplateVariables) Actually match the given path against the given pattern.
String	extractPathWithinPattern(String pattern, String path) 获取匹配pattern的值, demo如下 Given a pattern and a full path, determine the pattern-mapped part.
Map<String,String>	extractUriTemplateVariables(String pattern, String path) 获取{xxx}匹配上的参数 /{page}.html --> /42.html --> map.get(page) = 42 /A-{B}-C --> /A-b-C --> map.get(B) = b /{name}.
Comparator<String>	getPatternComparator(String path) Given a full path, returns a Comparator suitable for sorting patterns in order of explicitness.
boolean	isPattern(String path) Does the given path represent a pattern that can be matched by an implementation of this interface?
boolean	match(String pattern, String path) pattern *|?
boolean	matchStart(String pattern, String path) Match the given path against the corresponding part of the given pattern, according to this PathMatcher's matching strategy.
void	setPathSeparator(String pathSeparator) Set the path separator to use for pattern parsing.

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

字段详细资料

DEFAULT_PATH_SEPARATOR

public static final String DEFAULT_PATH_SEPARATOR

Default path separator: "/"

另请参阅:

常量字段值

构造器详细资料

AntPathMatcher

public AntPathMatcher()

方法详细资料

setPathSeparator

public void setPathSeparator(String pathSeparator)

Set the path separator to use for pattern parsing. Default is "/", as in Ant.

isPattern

public boolean isPattern(String path)

从接口复制的说明: PathMatcher

Does the given path represent a pattern that can be matched by an implementation of this interface?

If the return value is false, then the PathMatcher.match(java.lang.String, java.lang.String) method does not have to be used because direct equality comparisons on the static path Strings will lead to the same result.

指定者:

isPattern 在接口中 PathMatcher

参数:

path - the path String to check

返回:

true if the given path represents a pattern

match

public boolean match(String pattern,
            String path)

pattern *|?|** [**] 表示任意字符,包括分隔符(.|,|/等) [*] 表示由分隔符起作用的任意字符 [?] 表示 单个占位字符 大小写敏感

指定者:

match 在接口中 PathMatcher

参数:

pattern - the pattern to match against

path - the path String to test

返回:

true if the supplied path matched, false if it didn't

matchStart

public boolean matchStart(String pattern,
                 String path)

从接口复制的说明: PathMatcher

Match the given path against the corresponding part of the given pattern, according to this PathMatcher's matching strategy.

Determines whether the pattern at least matches as far as the given base path goes, assuming that a full path may then match as well.

指定者:

matchStart 在接口中 PathMatcher

参数:

pattern - the pattern to match against

path - the path String to test

返回:

true if the supplied path matched, false if it didn't

doMatch

public boolean doMatch(String pattern,
              String path,
              boolean fullMatch,
              Map<String,String> uriTemplateVariables)

Actually match the given path against the given pattern.

参数:

pattern - the pattern to match against

path - the path String to test

fullMatch - whether a full pattern match is required (else a pattern match as far as the given base path goes is sufficient)

返回:

true if the supplied path matched, false if it didn't

extractPathWithinPattern

public String extractPathWithinPattern(String pattern,
                              String path)

获取匹配pattern的值, demo如下 Given a pattern and a full path, determine the pattern-mapped part.

For example:

• '/docs/cvs/commit.html' and '/docs/cvs/commit.html -> ''
• '/docs/*' and '/docs/cvs/commit -> 'cvs/commit'
• '/docs/cvs/*.html' and '/docs/cvs/commit.html -> 'commit.html'
• '/docs/**' and '/docs/cvs/commit -> 'cvs/commit'
• '/docs/**\/*.html' and '/docs/cvs/commit.html -> 'cvs/commit.html'
• '/*.html' and '/docs/cvs/commit.html -> 'docs/cvs/commit.html'
• '*.html' and '/docs/cvs/commit.html -> '/docs/cvs/commit.html'
• '*' and '/docs/cvs/commit.html -> '/docs/cvs/commit.html'

Assumes that match(java.lang.String, java.lang.String) returns true for 'pattern' and 'path', but does not enforce this.

指定者:

extractPathWithinPattern 在接口中 PathMatcher

参数:

pattern - the path pattern

path - the full path to introspect

返回:

the pattern-mapped part of the given path (never null)

extractUriTemplateVariables

public Map<String,String> extractUriTemplateVariables(String pattern,
                                             String path)

获取{xxx}匹配上的参数 /{page}.html --> /42.html --> map.get(page) = 42 /A-{B}-C --> /A-b-C --> map.get(B) = b /{name}.{extension} --> /test.html --> map.get(name) = test && map.get(extension) = html 支持正则 [{symbolicName:[\\p{L}\\.]+}-sources-{version:[\\p{N}\\.]+}.jar] [com.example-sources-1.0.0.jar] map.get(symbolicName) = com.example map.get(version) = 1.0.0

指定者:

extractUriTemplateVariables 在接口中 PathMatcher

参数:

pattern - the path pattern, possibly containing URI templates

path - the full path to extract template variables from

返回:

a map, containing variable names as keys; variables values as values

combine

public String combine(String pattern1,
             String pattern2)

组合成一个新的pattern, 新的pattern 满足第一个pattern Combines two patterns into a new pattern that is returned.

This implementation simply concatenates the two patterns, unless the first pattern contains a file extension match (such as *.html. In that case, the second pattern should be included in the first, or an IllegalArgumentException is thrown.

For example:

Pattern 1	Pattern 2	Result
/hotels	null	/hotels
null	/hotels	/hotels
/hotels	/bookings	/hotels/bookings
/hotels	bookings	/hotels/bookings
/hotels/*	/bookings	/hotels/bookings
/hotels/**	/bookings	/hotels/**/bookings
/hotels	{hotel}	/hotels/{hotel}
/hotels/*	{hotel}	/hotels/{hotel}
/hotels/**	{hotel}	/hotels/**/{hotel}
/*.html	/hotels.html	/hotels.html
/*.html	/hotels	/hotels.html
/*.html	/*.txt	IllegalArgumentException

指定者:

combine 在接口中 PathMatcher

参数:

pattern1 - the first pattern

pattern2 - the second pattern

返回:

the combination of the two patterns

抛出:

IllegalArgumentException - when the two patterns cannot be combined

getPatternComparator

public Comparator<String> getPatternComparator(String path)

Given a full path, returns a Comparator suitable for sorting patterns in order of explicitness.

The returned Comparator will sort a list so that more specific patterns (without uri templates or wild cards) come before generic patterns. So given a list with the following patterns:

1. /hotels/new
2. /hotels/{hotel}
3. /hotels/*

the returned comparator will sort this list so that the order will be as indicated.

The full path given as parameter is used to test for exact matches. So when the given path is /hotels/2, the pattern /hotels/2 will be sorted before /hotels/1.

指定者:

getPatternComparator 在接口中 PathMatcher

参数:

path - the full path to use for comparison

返回:

a comparator capable of sorting patterns in order of explicitness