求一正则表达

[boy_wh520]

判断了一个字符串 必须有 数字 小写字母 大写字母 的正则那位有啊！有的话麻烦给一个参考下！

[boy_wh520]

顶一下！希望大家帮帮忙

[boy_wh520]

判断了一个字符串 必须有 数字 小写字母 大写字母
至少2种的组合
就是说这个字符串
数字+小写 数字+大写 小写+大写 这样的判断 正则有吗？有的话帮忙给个思路

[shine333]

反过来判断

如果符合“不存在数字字母，或者只有其中一种的”就是错误的

String regex = "[^\\p{Alnum}]*([\\d]*|[\\p{Lower}]*|[\\p{Upper}]*)[^\\p{Alnum}]*";
// NG
System.out.println("---NG---");
System.out.println(!"abc".matches(regex));
System.out.println(!"ABC".matches(regex));
System.out.println(!"123".matches(regex));
System.out.println(!";, \t".matches(regex));
System.out.println(!";,ABC \t".matches(regex));
System.out.println(!";,abc \t".matches(regex));
System.out.println(!";,123 \t".matches(regex));
// OK
System.out.println("---OK---");
System.out.println(!"abc123".matches(regex));
System.out.println(!"ABC123".matches(regex));
System.out.println(!"abcAbc".matches(regex));
System.out.println(!";,abcABC \t".matches(regex));
System.out.println(!";,ABCabc \t".matches(regex));
System.out.println(!";,123ABC \t".matches(regex));
System.out.println(!";,123abc \t".matches(regex));
System.out.println(!";,abc123 \t".matches(regex));
System.out.println(!";,ABC123 \t".matches(regex));
System.out.println(!";,abc123ABC \t".matches(regex));
System.out.println(!";,ab12c ... A34Bc \t".matches(regex));

[shine333]

更正一下，刚才的错了

String regex = "[\\d[^\\p{Alnum}]]*|[\\p{Lower}[^\\p{Alnum}]]*|[\\p{Upper}[^\\p{Alnum}]]*";
// NG
System.out.println("---NG---");
System.out.println(!"abc".matches(regex));
System.out.println(!"ABC".matches(regex));
System.out.println(!"123".matches(regex));
System.out.println(!";, \t".matches(regex));
System.out.println(!";,ABC \t".matches(regex));
System.out.println(!";,abc \t".matches(regex));
System.out.println(!";,123 \t".matches(regex));
// 以下几种情况楼上的没有考虑到
System.out.println(!"a b".matches(regex));
System.out.println(!"A B".matches(regex));
System.out.println(!"1 2".matches(regex));
System.out.println(!";,A;;;BC \t".matches(regex));
System.out.println(!";,a;;;bc \t".matches(regex));
System.out.println(!";,1;;;23 \t".matches(regex));
// OK
System.out.println("---OK---");
System.out.println(!"abc123".matches(regex));
System.out.println(!"ABC123".matches(regex));
System.out.println(!"abcAbc".matches(regex));
System.out.println(!";,abcABC \t".matches(regex));
System.out.println(!";,ABCabc \t".matches(regex));
System.out.println(!";,123ABC \t".matches(regex));
System.out.println(!";,123abc \t".matches(regex));
System.out.println(!";,abc123 \t".matches(regex));
System.out.println(!";,ABC123 \t".matches(regex));
System.out.println(!";,abc123ABC \t".matches(regex));
System.out.println(!";,ab12c ... A34Bc \t".matches(regex));

[boy_wh520]

太感谢了！