Spring Boot启动报错:Description:Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured.Reason: Failed to determine a suitable driver classAction:

安装elasticsearchdocker pull elasticsearch:7.7.0运行docker run --name elasticsearch -d -e ES_JAVA_OPTS="-Xms512m -Xmx512m" -e “discovery.type=single-node” -p 9200:9200 elasticsearch:7.7.0配置plumelogapplica

针对数万以上数据量的导出,使用EasyExcel,提升导出速度,降低服务器的内存占用.导出时先上传至文件存储服务,再将文件地址返回给前端,避免浏览器直接处理文件流.