java上传文件的几种方式_javaweb文件上传

package com.jws.app.operater.service.impl; import java.io.File; import java.util.HashMap; import java.util.Iterator; import java.util.List; import javax.annotation.Resource; import javax.servlet.http.HttpServletRequest; import org.apache.commons.fileupload.FileItem; import org.apache.commons.fileupload.FileItemFactory; import org.apache.commons.fileupload.disk.DiskFileItemFactory; import org.apache.commons.fileupload.servlet.ServletFileUpload; import org.apache.log4j.Logger; import org.springframework.stereotype.Service; import net.sf.json.JSONObject; import com.jws.app.operater.data.UserInfoMapper; import com.jws.app.operater.model.UserInfo; import com.jws.app.operater.service.PersionPhoteAuthServer; import com.jws.common.constant.Constants; import com.jws.common.constant.ConstantsCode; import com.jws.common.util.JiveGlobe; import com.jws.common.util.ResultPackaging; @Service("persionPhoteAuthServerImpl") public class PersionPhoteAuthServerImpl implements PersionPhoteAuthServer { @Resource private UserInfoMapper userInfoMapper; private final Logger logger = Logger.getLogger(this.getClass()); @Override public JSONObject uploadPhoto(HttpServletRequest reques) { JSONObject returnObject = new JSONObject(); String path = Constants.imageUrl; File repositoryFile = new File(path); if (!repositoryFile.exists()) {repositoryFile.mkdirs();} FileItemFactory factory = new DiskFileItemFactory(1024 * 32,repositoryFile); ServletFileUpload upload = new ServletFileUpload(factory); upload.setHeaderEncoding("utf-8"); upload.setSizeMax(1024 * 1024 * 500); List<?> fileItr = null; try { fileItr = upload.parseRequest(reques); // 讲非文件值放在map中 HashMap<String, String> map = new HashMap<>(); Iterator<?> iter = fileItr.iterator(); while (iter.hasNext()) { FileItem item = (FileItem) iter.next(); if (item.isFormField()) { map.put(item.getFieldName(), item.getString()); } } // 验证参数 if (map == null || !map.containsKey("openid")) { returnObject =ResultPackaging.dealJsonObject(ConstantsCode.RESULT_CODE_FAIL, ConstantsCode.CODE_LACK_PARAMETER, null); return returnObject; } String openid = map.get("openid"); //处理文件 boolean isTrue = true; String filename = ""; Iterator<?> iter1 = fileItr.iterator(); while (iter1.hasNext()) { FileItem f = (FileItem) iter1.next(); if (!f.isFormField()) { //详情 name=abc.png, size=376507 bytes, isFormField=false, FieldName=picture1 filename = f.getName() == null ? "" : f.getName(); filename = JiveGlobe.getFromRom()+".jpg"; File saveFile = new File(path, filename); if (saveFile.exists()) { isTrue = false;break;} f.write(saveFile); } } if(JiveGlobe.isEmpty(filename)){ returnObject =ResultPackaging.dealJsonObject(ConstantsCode.RESULT_CODE_FAIL, ConstantsCode.CODE_LACK_PARAMETER, null); return returnObject; } returnObject =ResultPackaging.dealJsonObject(ConstantsCode.RESULT_CODE_SUCCESS, ConstantsCode.RESULT_CODE_SUCCESS, null); //保存文件信息 UserInfo rd = new UserInfo(); rd.setSpareField1("1"); rd.setSpareField3(filename); rd.setOpenId(openid); userInfoMapper.updateByPrimaryKey(rd); } catch (Exception e) { System.out.println(e); logger.error("###认证失败"+e); } return returnObject; } }

@RequestMapping("/upload") @ResponseBody public String handleFileUpload(@RequestParam("file") MultipartFile file) { if (file.isEmpty()) { return "文件为空"; } // 获取文件名 String fileName = file.getOriginalFilename(); System.out.println("上传的文件名为：" + fileName); // 获取文件的后缀名 String suffixName = fileName.substring(fileName.lastIndexOf(".")); System.out.println("上传的后缀名为：" + suffixName); // 文件上传后的路径 String filePath = "D://"; File dest = new File(filePath + fileName); // 检测是否存在目录 if (!dest.getParentFile().exists()) { dest.getParentFile().mkdirs(); } try { file.transferTo(dest); return "上传成功"; } catch (IllegalStateException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } return "上传失败"; }

/** * 多文件具体上传时间，主要是使用了MultipartHttpServletRequest和MultipartFile * * @param request * @return */ @RequestMapping(value = "/batch/upload", method = RequestMethod.POST) public @ResponseBody String handleFileUpload1(HttpServletRequest request) { List<MultipartFile> files = ((MultipartHttpServletRequest) request).getFiles("file"); String filePath = "D://"; MultipartFile file = null; for (int i = 0; i < files.size(); ++i) { file = files.get(i); // 获取文件名 String fileName = file.getOriginalFilename(); System.out.println("上传的文件名为：" + fileName); if (!file.isEmpty()) { File dest = new File(filePath + fileName); // 检测是否存在目录 if (!dest.getParentFile().exists()) { dest.getParentFile().mkdirs(); } try { file.transferTo(dest); } catch (Exception e) { return "上传失败 " + i + " => " + e.getMessage(); } } else { return "上传失败 " + i + " 文件为空."; } } return "上传成功"; }