java 中通用唯一识别码的生成

import java.util.UUID;

public class GeneralKey {

public static String getGeneralKey(){

UUID uuid = UUID.randomUUID();

return uuid.toString().replaceAll("-", "");

}

public static void main(String[] args) {

for(int i=0; i<20; i++){

System.out.println(GeneralKey.getGeneralKey());

System.out.println(GeneralKey.getGeneralKey().length());

System.out.println(">>>>>>>>>>>>>>>>>>>>>>>>>>");

}

}

}