34 lines
847 B
Java
34 lines
847 B
Java
import com.couplet.vehicle.utils.SnowflakeIdGenerator;
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/**
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* @ProjectName: five-groups-couplet
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* @Author: LiuYunHu
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* @CreateTime: 2024/3/27
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* @Description:
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*/
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public class IdTest {
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public static void main(String[] args) {
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SnowflakeIdGenerator idGenerator = new SnowflakeIdGenerator(1, 1);
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long l = idGenerator.nextId();
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String s = "VIN" + l;
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System.out.println(l);
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System.out.println(s);
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System.out.println("剪切前长度：" + s.length());
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String last17 = s.substring(s.length() - 17);
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System.out.println("剪切后："+last17+" 长度："+last17.length());
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System.out.println("----------------------");
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String s1 = "1224069209961664512";
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String substring = s1.substring(s1.length() - 17);
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System.out.println(substring);
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}
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}
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