java随机生成十位数编码

原创于 2023-12-06 11:45:17 发布 · 430 阅读

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import java.security.SecureRandom;
import java.util.Random;

/**
 * @program: server
 * @ClassName CDKGenerator
 * @description: 生成十位数随机编码
 * @author: LiuJie
 * @create: 2023-12-06 11:38
 * @Version 1.0
 **/
public class CDKGenerator {
    private static final String CHARACTERS = "123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";

    public static String getCharacters() {
        Random random = new SecureRandom();
        StringBuilder cdk = new StringBuilder();

        for (int i = 0; i < 10; i++) {
            int index = random.nextInt(CHARACTERS.length());
            char c = CHARACTERS.charAt(index);
            cdk.append(c);
        }
        return cdk.toString();
    }
}

其中循环次数即生成的编码的长度，生成方法位静态方法，外部可以直接调用。