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简单create procedure test(in height int)begin declare desci varchar(30); if height >= 180 then set desci = "大"; elseif height >= 170 and height < 180 then set desci = "中"; else set desci = "小"; end i

写## 少量数据public void testWrite() throws Exception { //创建一个xls工作簿 Workbook workbook = new HSSFWorkbook(); //创建一个xlsx工作簿 //Workbook workbook = new XSSFWorkbook(); //创建一个工作表 Sheet sheet = workbook.createSheet(

一、安装docker1.一键安装dockeryum install -y docker2.检查是否安装成功yum list installed |grep docker3.设置阿里镜像yum-config-manager \ --add-repo \ http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repoyum install -y yum-utils device-mapper-persistent-da

#解决中文乱码chcp 65001#批量启动title 批量启动#跳转到需要执行的文件夹cd D:/nacos/bin#最小化执行cmd小黑框start /MIN cmd /c "chcp 65001 && title nacos服务-单机 && startup.cmd -m standalone"#跳转到需要执行的文件夹cd D:/redis/#最小化执行cmd小黑框start /MIN cmd /c "chcp 65001 && ti

package com.mpz.demo.demojsp.utils;/*** @author MPZ* @create 2019-08-23 11:45*/import java.io.UnsupportedEncodingException;import java.net.URLEncoder;import java.util.TreeMap;import javax.crypto.Mac;import javax.crypto.spec.SecretKeySpec;import j

/** * Excel表格导出 * @param response HttpServletResponse对象 * @param excelData Excel表格的数据，封装为List<List<String>> * @param sheetName sheet的名字 * @param fileName 导出Excel的文件名 * @param merge 合并单元格数组List int[]{起始行,结束行,起始列,结束列