sping filter urlPatterns 檢查邏輯
org.apache.catalina.core.ApplicationFilterFactory#matchFiltersURL(java.lang.String, java.lang.String)
private static boolean matchFiltersURL(String testPath, String requestPath) {
if (testPath == null)
return false;
// Case 1 - Exact Match 如果訪問對的路徑相同則加入過濾器
if (testPath.equals(requestPath))
return true;
// Case 2 - Path Match ("/.../*")如果訪問的路徑是/*
if (testPath.equals("/*"))
return true;
if (testPath.endsWith("/*")) {
if (testPath.regionMatches(0, requestPath, 0,
testPath.length() - 2)) {
if (requestPath.length() == (testPath.length() - 2)) {
return true;
} else if ('/' == requestPath.charAt(testPath.length() - 2)) {
return true;
}
}
return false;
}
// Case 3 - Extension Match
if (testPath.startsWith("*.")) {
int slash = requestPath.lastIndexOf('/');
int period = requestPath.lastIndexOf('.');
if ((slash >= 0) && (period > slash)
&& (period != requestPath.length() - 1)
&& ((requestPath.length() - period)
== (testPath.length() - 1))) {
return testPath.regionMatches(2, requestPath, period + 1,
testPath.length() - 2);
}
}
// Case 4 - "Default" Match
return false; // NOTE - Not relevant for selecting filters
}
