package cn.exrick.xboot.core.common.utils;
|
|
import cn.hutool.core.util.IdUtil;
|
|
import java.security.SecureRandom;
|
|
/**
|
* @author Exrickx
|
*/
|
public class CommonUtil {
|
|
private CommonUtil() {
|
throw new IllegalStateException("Utility class");
|
}
|
|
private static SecureRandom random = new SecureRandom();
|
|
/**
|
* 以UUID重命名
|
* @param fileName
|
* @return
|
*/
|
public static String renamePic(String fileName) {
|
|
String extName = "";
|
if (fileName.contains(".")) {
|
extName = fileName.substring(fileName.lastIndexOf("."));
|
}
|
return IdUtil.simpleUUID() + extName;
|
}
|
|
/**
|
* 随机6位数生成
|
*/
|
public static String getRandomNum() {
|
|
int num = random.nextInt(999999);
|
// 不足六位前面补0
|
String str = String.format("%06d", num);
|
return str;
|
}
|
|
/**
|
* 批量递归删除时 判断target是否在ids中 避免重复删除
|
* @param target
|
* @param ids
|
* @return
|
*/
|
public static Boolean judgeIds(String target, String[] ids) {
|
|
Boolean flag = false;
|
for (String id : ids) {
|
if (id.equals(target)) {
|
flag = true;
|
break;
|
}
|
}
|
return flag;
|
}
|
}
|
