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springmvc上传文件

程序员文章站 2022-04-08 09:38:00
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package com.ucmed.web.controller.admin;

import net.sf.json.JSONObject;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Controller;
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 java.io.File;
import java.text.SimpleDateFormat;
import java.util.Date;

/**
 * Created by ZY-LJ-1446 on 2018/11/28.
 */
@Controller
@RequestMapping(value = "/imageUpload")
public class ImageUploadController {

    /**
     * 上传封面图 正文图
     */
    @ResponseBody
    @RequestMapping(method = RequestMethod.POST, params = "action=uploadImage")
    public ResponseEntity<JSONObject> uploadImage(@RequestParam(value = "imageText") MultipartFile mf) throws Exception {
        //String realPath = request.getSession().getServletContext().getRealPath("upload");
        String fileuri = "http://test.lj.ucmed.cn/image/";
        JSONObject jsonObject = new JSONObject();
        try {
            String path = "D:/temp/";
            String filename = mf.getOriginalFilename();
            if (mf.getSize() >= 2000000) {
                jsonObject.put("errcode", -1);
                jsonObject.put("errmsg", "文件大小不能超过2M");
                return new ResponseEntity<>(jsonObject, HttpStatus.OK);
            }
            String[] names = filename.split("\\.");
            //jpg bmp png jpeg
            if (!names[names.length - 1].equalsIgnoreCase("jpg") && !names[names.length - 1].equalsIgnoreCase("bmp") &&
                    !names[names.length - 1].equalsIgnoreCase("png") && !names[names.length - 1].equalsIgnoreCase("jpeg")) {
                jsonObject.put("errcode", -1);
                jsonObject.put("errmsg", "文件格式必须是 jpg bmp png jpeg");
                return new ResponseEntity<>(jsonObject, HttpStatus.OK);
            }
            String tempNum = (int) (Math.random() * 100000) + "";
            String uploadFileName = tempNum + System.currentTimeMillis() + "." + names[names.length - 1];
            File filepath = new File(path + fileDate());
            if (!filepath.exists() && !filepath.isDirectory()) {
                filepath.mkdir();
            }
            File file = new File(filepath, uploadFileName);
            mf.transferTo(file);
            jsonObject.put("errcode", 0);
            jsonObject.put("errmsg", "上传成功");
            jsonObject.put("fileName", filename);
            jsonObject.put("fileAddress", fileuri + fileDate() + uploadFileName);
        } catch (Exception e) {
            jsonObject.put("errcode", -1);
            jsonObject.put("errmsg", "未知异常");
        }
        return new ResponseEntity<>(jsonObject, HttpStatus.OK);
    }

    private String fileDate() {
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
        return dateFormat.format(new Date()) + "/";
    }
}

 

相关标签: 文件上传