PatternValidationAdapter.java 文件源码

@Override
public void validate(Pattern patternAnnotation, String name, ValidationContext validationCtx, Errors e) {
    Object value = validationCtx.value(name);

    if (value == null || Str.isEmpty(patternAnnotation.regexp()))
        return;

    String pattern = patternAnnotation.regexp();
    Pattern.Flag[] flags = patternAnnotation.flags();

    int flagBits = 0;
    for (Pattern.Flag flag : flags) {
        flagBits |= flag.getValue();
    }

    java.util.regex.Pattern regexPattern = java.util.regex.Pattern.compile(pattern, flagBits);
    Matcher m = regexPattern.matcher(String.valueOf(value));

    if (!m.matches())
        e.add(name, patternAnnotation.message());
}