Phosphenes的博客

Dao层代码 public interface AttachmentDao { List<AttachmentExtends> selectAttachmentList(); } Service层代码 @Service public class AttachmentServiceImp implements AttachmentService { @Autowire...

首先需要添加依赖,这里4.1.0版本方便下面设置下载的文件名 <!--导出到Excel--> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi-excelant</artifactId> <vers...

需要的依赖 <!--导出到Excel--> <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi-excelant</artifactId> <version>3.17</version&g...

错误: Invalid character found in the request target. The valid characters are defi 解决方法: 打开tomcat路径中的conf文件夹,修改server.xml中的内容 <Connector connectionTimeout="20000" port="8080" protocol="HTTP/1.1" ...