棒棒的邦邦

import java.awt.Color; import java.awt.Font; import java.awt.Graphics; import java.awt.image.BufferedImage; import java.io.IOException; import java.util.Random; import javax.imageio.ImageIO; import javax.servlet.ServletException; import javax.servlet.anno

import java.util.List; import com.fasterxml.jackson.core.JsonProcessingException; import com.fasterxml.jackson.databind.JavaType; import com.fasterxml.jackson.databind.ObjectMapper; /** * JSON转换工具类 */ public class JsonUtils { // 定义jackson对象 pr

文件结构 druidpool.properties driverClassName=com.mysql.cj.jdbc.Driver url=jdbc:mysql://localhost:3306/mytest?serverTimezone=UTC&useUnicode=true&characterEncoding=utf-8 username=root password=123456 # 初始化连接数量 initialSize=10 # 最大的连接数量 maxActive=200