springmvc上传文件
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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()) + "/";
}
}