html + servlet 实现文件的上传

来源：互联网发布：淘宝喵喵折怎么设置编辑：程序博客网时间：2024/06/11 16:19

程序要求：

1.提供一个HTML文件，用户可以在相应的表单中选择需要上传的文件；

2.编写一个名叫UploadServlet 的 Servlet 文件，主要功能是解析上面的HTML表单所提交的HTTP请求，把普通的文本域和文件域分离开来

3.UploadServlet 根据 web.xml 配置文件中的初始化参数确定好需要在web服务器上存放该文件的目录

import java.io.File;import java.io.IOException;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpSession;import org.springframework.stereotype.Controller;import org.springframework.util.FileCopyUtils;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.RequestParam;import org.springframework.web.multipart.MultipartFile;import org.springframework.web.servlet.ModelAndView;@Controller@RequestMapping("/pages")public class UploadServlet {@RequestMapping(value = "/add",method = {RequestMethod.POST})  //MultipartFile来自：org.springframework.web.multipart.MultipartFile;public ModelAndView addGoods( HttpServletRequest request, HttpSession session,@RequestParam("file") MultipartFile file) {      ModelAndView mav = new ModelAndView();      if (!file.isEmpty()) {            String path = request.getContextPath() + "/jsp/";          String fileName = file.getOriginalFilename();            try {              String tomcatPath = "E:/GitProject"; //得到保存的路径              FileCopyUtils.copy(file.getBytes(), new File(tomcatPath +"/" +  fileName));//FileCopyUtils来自org.springframework.util.FileCopyUtils            } catch (IOException e) {              // TODO Auto-generated catch block              e.printStackTrace();          }                   }        mav.setViewName("upload2");      return mav;    }  @RequestMapping(value = "/upload",method = {RequestMethod.GET}) public ModelAndView show(){ ModelAndView mav = new ModelAndView(); mav.setViewName("upload2"); return mav;}}

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