SpringMVC上传文件路径问题-优快云博客

本文探讨了在Spring MVC项目中，图片上传至target目录而非预期目录的问题，并提供了两种解决方案：一是为本地资源创建虚拟路径，二是在服务器上发布资源并使用URL访问。文章详细解释了IDEA构建的Maven Web项目在Tomcat部署时，使用war exploded模式导致的图片上传路径问题。

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控制器代码如下：

发现上传的图片总是上传至项目的target目录中去，并且在jsp页面无法访问图片资源

@Controller
public class FileUploadController {
    @Autowired
    ServletContext context;

    @RequestMapping(value="/fileUploadPage",method=RequestMethod.GET)
    public ModelAndView fileUploadPage(){
        FileModel file=new FileModel();
        ModelAndView modelAndView=new ModelAndView("fileUpload","command",file);
        return modelAndView;
    }

    @RequestMapping(value="/fileUploadPage",method=RequestMethod.POST)
    public String fileUpload(@Validated FileModel file, BindingResult result,ModelMap model,HttpServletRequest request) throws Exception{
        if (result.hasErrors()){
            System.out.println("validation errors");
            return "fileUploadPage";
        }else {
            System.out.println("Fetching file");
            MultipartFile multipartFile=file.getFile();
            String uploadPath=request.getSession().getServletContext().getRealPath("")+File.separator+"tmp"+File.separator;
            System.out.println("FileUploadController::Picpath：："+uploadPath);
            FileCopyUtils.copy(file.getFile().getBytes(), new File(uploadPath+file.getFile().getOriginalFilename()));
            String fileName = multipartFile.getOriginalFilename();
            model.addAttribute("filepath", "/pic/"+fileName);
            return "success";
        }
    }

success.jsp

<%--
  Created by IntelliJ IDEA.
  User: sakal
  Date: 2018/8/12
  Time: 9:02
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form"%>
<%@ page isELIgnored="false"%>
<html>
<head>
    <title>上传成功</title>
</head>
<body>
文件名称：<b>${filepath}</b>-上传成功~
<img src="${filepath}">
</body>
</html>