UUID工具类及使用
1.工具类:
package UUIdtest;
import java.util.UUID;
public class UUIDUtil {
    public static String getUUID() {
        return UUID.randomUUID().toString();
    }
}
2.使用
package UUIdtest;
import org.junit.Test;
public class TestUUID {
    @Test
    public void test3(){
        System.out.println(UUIDUtil.getUUID().replace("-", ""));
        System.out.println(UUIDUtil.getUUID());
        System.out.println(UUIDUtil.getUUID());
    }
}
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LFi2inGF3iyA0fFoJCcRQtBIIOswdXiRYfeoW0betcKCkUCoWtKKlQKCyFoqRCobAQipIKhcJCKEoqFAoLoSipUCgshKKkQqGwEIqSCoXCQihKKhQKC6EoqVAoLIT/AM6RtjqvUzeeAAAAAElFTkSuQmCC" 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3. 经过改造变成两个,一个带横杠-,一个不带横杠-:
package cn.xm.exam.utils; import java.util.UUID; /**
* UUID工具类
*
* @author QiaoLiQiang
* @time 2017年9月18日上午9:09:25
*/
public class UUIDUtil {
/**
* 带-的UUID
*
* @return 36位的字符串
*/
public static String getUUID() {
return UUID.randomUUID().toString();
} /**
* 去掉-的UUID
*
* @return 32位的字符串
*/
public static String getUUID2() {
return UUID.randomUUID().toString().replace("-", "");
} }
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