BootStrap fileupload实现文件上传

1、jsp使用

	

         课程书籍
         

	         
	         
         
    
    

2、controller

package com.graduation.controller;

import org.apache.commons.io.FileUtils;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
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.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.*;
import java.lang.reflect.Method;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

/**
 * @author K
 */
@Controller
@RequestMapping("/file")
public class FileController {

    @RequestMapping(value = "/download",method = RequestMethod.GET)
    private ResponseEntity FileDownload(HttpServletRequest request, @RequestParam(value = "filename",required = true) String filename, Model model)throws IOException {
        String path = request.getServletContext().getRealPath("");

        String downloadFilePath=path + "\\static\\datafile";//从我们的上传文件夹中去取
        filename = filename+".zip";
        File file = new File(downloadFilePath+File.separator+filename);//新建一个文件

        HttpHeaders headers = new HttpHeaders();//http头信息

        String downloadFileName = new String(filename.getBytes("UTF-8"),"iso-8859-1");//设置编码

        headers.setContentDispositionFormData("attachment", downloadFileName);

        headers.setContentType(MediaType.APPLICATION_OCTET_STREAM);

        //MediaType:互联网媒介类型  contentType：具体请求中的媒体类型信息

        return new ResponseEntity(FileUtils.readFileToByteArray(file),headers, HttpStatus.CREATED);
    }
    @RequestMapping(value = "/templateDownload",method = RequestMethod.GET)
    private ResponseEntity TemplateDownload(HttpServletRequest request, @RequestParam(value = "filename",required = true) String filename, Model model)throws IOException {
        String path = request.getServletContext().getRealPath("");

        String downloadFilePath=path + "\\static\\template";//从我们的上传文件夹中去取
        filename = filename+".xlsx";
        File file = new File(downloadFilePath+File.separator+filename);//新建一个文件

        HttpHeaders headers = new HttpHeaders();//http头信息

        String downloadFileName = new String(filename.getBytes("UTF-8"),"iso-8859-1");//设置编码

        headers.setContentDispositionFormData("attachment", downloadFileName);

        headers.setContentType(MediaType.APPLICATION_OCTET_STREAM);

        //MediaType:互联网媒介类型  contentType：具体请求中的媒体类型信息

        return new ResponseEntity(FileUtils.readFileToByteArray(file),headers, HttpStatus.CREATED);
    }
    @ResponseBody
    @RequestMapping("/upload")
    public Map uploadFile(MultipartFile coverImg,HttpServletRequest request) throws IllegalStateException, IOException {
        // 原始名称
        String oldFileName;
        oldFileName = coverImg.getOriginalFilename();
        // 上传图片
        if (coverImg != null && oldFileName != null && oldFileName.length() > 0) {
            // 新的图片名称
            String newFileName = oldFileName;
            //存放地址
            String saveFilePath = request.getServletContext().getRealPath("")+"\\static\\imgs\\courseImg\\"+newFileName;
            // 新图片
            File newFile = new File(saveFilePath);
            // 将内存中的数据写入磁盘
            coverImg.transferTo(newFile);
            // 将新图片名称返回到前端
            Map map = new HashMap();
            map.put("success", "成功啦");
            map.put("url", newFileName);
            return map;
        } else {
            Map map = new HashMap();
            map.put("error", "图片不合法");
            return map;
        }
    }

    @ResponseBody
    @RequestMapping("/courseUpload")
    public Map uploadCourseFile(MultipartFile file,HttpServletRequest request) throws IllegalStateException, IOException {
        // 原始名称
        String oldFileName;
        oldFileName = file.getOriginalFilename();
        String suffix = oldFileName.substring(oldFileName.indexOf(".")+1);
        // 上传图片
        if (file != null && oldFileName != null && oldFileName.length() > 0) {
            // 新的图片名称
            String newFileName = oldFileName;
            String saveFilePath;
            //存放地址
            if(suffix.equals("docx") || suffix.equals("doc")){
                saveFilePath = request.getServletContext().getRealPath("")+"\\static\\exercises\\"+newFileName;

            }else if(suffix.equals("zip")||suffix.equals("rar")){
                saveFilePath = request.getServletContext().getRealPath("")+"\\static\\datafile\\"+newFileName;
            }else{
                saveFilePath = request.getServletContext().getRealPath("")+"\\static\\videos\\"+newFileName;
            }
            // 新图片
            File newFile = new File(saveFilePath);
            // 将内存中的数据写入磁盘
            file.transferTo(newFile);
            // 将新图片名称返回到前端
            Map map = new HashMap();
            map.put("success", "成功啦");
            map.put("url", newFileName);
            return map;
        } else {
            Map map = new HashMap();
            map.put("error", "图片不合法");
            return map;
        }
    }

    @ResponseBody
    @RequestMapping("/planfile")
    public Map uploadPlane(MultipartFile planfile,HttpServletRequest request) throws IllegalStateException, IOException {
        // 原始名称
        String oldFileName;
        oldFileName = planfile.getOriginalFilename();

        // 上传图片
        if (planfile != null && oldFileName != null && oldFileName.length() > 0) {
            // 新的图片名称
            String newFileName = oldFileName;
            //存放地址
            String saveFilePath = request.getServletContext().getRealPath("")+"\\static\\teachPlans\\"+newFileName;
            // 新图片
            File newFile = new File(saveFilePath);
            // 将内存中的数据写入磁盘
            planfile.transferTo(newFile);
            // 将新图片名称返回到前端
            Map map = new HashMap();
            map.put("success", "成功啦");
            map.put("url", newFileName);
            return map;
        } else {
            Map map = new HashMap();
            map.put("error", "图片不合法");
            return map;
        }
    }

    @ResponseBody
    @RequestMapping("/bookUpload")
    public Map uploadBook(MultipartFile bookfile,HttpServletRequest request) throws IllegalStateException, IOException {
        // 原始名称
        String oldFileName;
        System.out.println("原始名称:"+bookfile.getOriginalFilename());
        oldFileName = bookfile.getOriginalFilename();
        // 上传图片
        if (bookfile != null && oldFileName != null && oldFileName.length() > 0) {
            // 新的图片名称
            String newFileName = oldFileName;
            //存放地址
            String saveFilePath = request.getServletContext().getRealPath("")+"\\static\\chapterPdf\\"+newFileName;
            // 新图片
            File newFile = new File(saveFilePath);
            // 将内存中的数据写入磁盘
            bookfile.transferTo(newFile);
            // 将新图片名称返回到前端
            Map map = new HashMap();
            map.put("success", "成功啦");
            map.put("url", newFileName);
            return map;
        } else {
            Map map = new HashMap();
            map.put("error", "图片不合法");
            return map;
        }
    }
}