字符串组装-将时间转换成String并补足位数-优快云博客

本文链接：https://blog.youkuaiyun.com/Ying_Baiyu/article/details/84207965

本文介绍了使用Java语言进行编码生成的过程，包括日期格式化、字符串拼接以及数字格式化等操作，展示了如何通过简单的代码实现高效且规范的编码创建。

package test;

import java.text.NumberFormat;
import java.text.SimpleDateFormat;
import java.util.Date;

/**
 * 生成编码
 * @author Administrator
 *
 */
public class Test {
    public static void main(String[] args){
        StringBuffer sb = new StringBuffer();
        char[] projectTypes = {'B','S'};
        char[] listingTypes = {'R','D','G'};
        //将时间转换成String
        Date date = new Date();
        System.out.println("++++++++++++++++"+date+"++++++++++++++++");
        SimpleDateFormat formatter = new SimpleDateFormat("yyMMdd");
        String dateString = formatter.format(date);
        System.out.println("转换后String类型的时间"+dateString);
        sb.append(projectTypes[0]).append(listingTypes[0]).append(dateString);

        System.out.println("++++++++++++++++"+sb+"++++++++++++++++++");

        //code后面6位，补不足补零
        Long n = 1005l;   
        NumberFormat numFormatter = NumberFormat.getNumberInstance();   
        numFormatter.setMinimumIntegerDigits(6);   
        numFormatter.setGroupingUsed(false);   
        String s = numFormatter.format(n);  

        System.out.println("++++++++++++++++"+s+"++++++++++++++++");
        sb.append(s);
        String code = sb.toString();

        System.out.println("-----------------"+code+"----------------");


    }
}