stay common Create a class file in the package UUIDUtils.java

package sinosoft.bjredcross.common;
import java.util.UUID;
public class UUIDUtils {
/**
* Get the specified number of UUID
* @param number int What you need to get UUID Number
* @return String[] UUID Array
*/
public static String[] getUUID(int number){
if(number < 1){
return null;
}
String[] retArray = new String[number];
for(int i=0;i<number;i++){
retArray[i] = getUUID();
}
return retArray;
} /**
* To obtain a UUID
* @return String UUID
*/
public static String getUUID(){
String uuid = UUID.randomUUID().toString();
// Get rid of “-” Symbol
return uuid.replaceAll("-", "");
}
}

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