package com....; import java.io.File; import java.io.IOException; import java.text.SimpleDateFormat; import java.util.Date; import java.util.HashMap; import java.util.Map; import javax.servlet.ServletException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.commons.io.FileUtils; import org.springframework.beans.factory.annotation.Autowired; 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.ResponseBody; import org.springframework.web.multipart.MultipartFile; import org.springframework.web.multipart.MultipartHttpServletRequest; /* * @describe 上传头像文件,上传文件夹需存在 */ @Controller public class ThenHeadPortraitController { private final int MAX_SIZE = 1024 * 1024 * 1; //限制用户头像的最大值为1M private String[] extendNamesArray = {".jpg",".jpeg"}; //用户头像的扩展名数组,方面验证 private String rootPath; //文件根路径 private String p_w_picpathNewPath; //头像新路径(包含头像名以及扩展名) private String p_w_picpathOldPath; //头像在数据库中的原有路径(包含头像名以及扩展名) private String p_w_picpathNames; //头像的新名字(时间+用户名),时间精确到毫秒 private String extendName ; //头像的扩展名,进行扩展名验证,以达到对用户头像的图片类型限制 private String message; //用于返回上传头像的信息 private String p_w_picpathURL; //用于返回用户头像存放的物理路径 private MultipartFile p_w_picpathFile; //测试时使用方法 @RequestMapping(value="/then/uploadHeadPortrait.jspx",method= RequestMethod.GET) public void upload(HttpServletRequest request,HttpServletResponse response) throws ServletException, IOException { request.getRequestDispatcher("../MyJsp.jsp").forward(request,response); return; } @RequestMapping(value="/then/uploadHeadPortrait.jspx",method= RequestMethod.POST) @ResponseBody public Map<String,String> uploadHeadPortrait(String account,HttpServletRequest request){ String p_w_picpathAccount = account; //存储用户临时的用户名,以便进行文件的命名 Map<String,String> map = new HashMap<String,String>(); MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request; //获取上传头像 p_w_picpathFile = multipartRequest.getFile("file"); //获取上传头像的文件名 String fileName = p_w_picpathFile.getOriginalFilename(); System.out.println("OriginalFilename:"+fileName); //获取文件扩展名 extendName = fileName.substring(fileName.lastIndexOf(".")); //获取上传头像的大小 int p_w_picpathSize = (int) p_w_picpathFile.getSize(); //验证头像的扩展名是否符合要求 if((extendName.equals(extendNamesArray[0])||extendName.equals(extendNamesArray[1]))&&(p_w_picpathSize<=MAX_SIZE)){ rootPath = request.getSession().getServletContext().getRealPath("//upload"); System.out.println("rootPath:"+rootPath); p_w_picpathNames = getUploadCurrentTime() + p_w_picpathAccount; //重新命名上传头像名称 System.out.println("p_w_picpathNames:"+p_w_picpathNames); p_w_picpathNewPath = rootPath+"\\"+p_w_picpathNames+extendName; System.out.println("p_w_picpathNewPath:"+p_w_picpathNewPath); //判断新路径是否等于数据库中已存在的路径,不等于,则存储新路径,删除原有头像文件 if(!p_w_picpathNewPath.equals(getDatabaseImageOldPath(p_w_picpathAccount))){ if(getDatabaseImageOldPath(p_w_picpathAccount)!=null&&getDatabaseImageOldPath(p_w_picpathAccount)!=""){ File file = new File(getDatabaseImageOldPath(p_w_picpathAccount)); if(p_w_picpathSave(p_w_picpathAccount,p_w_picpathNewPath)){ if(file.exists()){ file.delete(); } message = "头像上传成功"; p_w_picpathURL = p_w_picpathNewPath; map.put("message",message); map.put("p_w_picpathURL",p_w_picpathURL); }else{ //保存失败 message = "头像保存失败"; p_w_picpathURL = null; map.put("message",message); map.put("p_w_picpathURL",p_w_picpathURL); } } }else{ message = "头像上传失败"; p_w_picpathURL = null; map.put("message",message); map.put("p_w_picpathURL",p_w_picpathURL); } }else{ //图像格式不符合或者头像的大小大于1M message = "头像上传失败,格式或大小不符合"; p_w_picpathURL = null; map.put("message",message); map.put("p_w_picpathURL",p_w_picpathURL); } return map; } //获取头上上传的当前时间 private String getUploadCurrentTime(){ return new SimpleDateFormat("yyyyMMddHHmmssSSS") .format(new Date() ); } //获取数据库中原有路径,如有则返回路径,否则返回可能为空或“” private String getDatabaseImageOldPath(String account){ UserDetail userDetatilOldPath=userService.findByUsername(account).getDetail(); p_w_picpathOldPath = userDetatilOldPath.getAvatar(); return p_w_picpathOldPath; } //对原有头像的新路径进行存储,存储后进行检查,时候已经存储,存储成功返回true,失败则返回false private boolean p_w_picpathSave(String account,String p_w_picpathNewPath){ File uploadFile = new File(p_w_picpathNewPath); try { FileCopyUtils.copy(p_w_picpathFile.getBytes(), uploadFile); FileUtils.copyInputStreamToFile(p_w_picpathFile.getInputStream(), new File(p_w_picpathNewPath)); UserDetail ud=userService.findByUsername(account).getDetail(); ud.setAvatar(p_w_picpathNewPath); //设置头像新路径 userDetailService.update(ud) ; //对头像进行数据库更新操作 if(getDatabaseImageOldPath(account)!=null||getDatabaseImageOldPath(account).equals("")){ return true; } } catch (IOException e) { e.printStackTrace(); System.out.println("【上传头像失败...】"); return false; } return false; } @Autowired private UserDetailService userDetailService; @Autowired private UserService userService; }
手机端服务器开发Spring MVC上传头像,并返回JSON数据
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