本人在 .NET 转JAVA 的路上 ,也在学习SpringBoot相关知识,这里记录一下在Springboot中实现文件上传下载的核心代码
package com.file.demo.springbootfile; import com.file.util.ResultUtil; import org.apache.commons.lang.exception.ExceptionUtils; import org.apache.tomcat.util.http.fileupload.IOUtils; import org.apache.tomcat.util.http.fileupload.util.Streams; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.bind.annotation.RestController; import org.springframework.web.multipart.MultipartFile; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.*; /* * springboot整合vue,文件上传下载 * */ //上传不要用@Controller,用@RestController @RestController @RequestMapping("/file") public class FileController { private static final Logger logger = LoggerFactory.getLogger(FileController.class); //在文件中,不用/或者\最好,推荐使用File.separator private final static String fileDir="files"; private final static String rootPath = System.getProperty("user.home")+ File.separator+fileDir+File.separator; /* * 文件上传 * */ @RequestMapping("/upload") public Object uploadFile(@RequestParam("file")MultipartFile[] multipartFiles, final HttpServletResponse response, final HttpServletRequest request){ File fileDir = new File(rootPath); /* * exists():测试此抽象路径名表示的文件是否存在 * isDirectory():检查一个对象是否是文件夹 * isFile():判断是否为文件,也可能是文件目录 * */ if(!fileDir.exists() && !fileDir.isDirectory()){ //检查到文件不存在则创建 fileDir.mkdir();//创建文件,一级 fileDir.mkdirs();//创建多级 } try{ if(multipartFiles != null && multipartFiles.length > 0){ for ( int i = 0;i
源码下载地址: https://github.com/struggle0903/SpringBootfiledemo.git