uploadUtils

package com.htht.qht.utils;


import java.io.File;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Properties;


import org.springframework.web.multipart.MultipartFile;






public class UploadUtils {

public static String getPropertiesValue(String propertyName) {
Properties properties = PropertiesUtil.getInstance()
.getProperties("resources/env.properties");
String value = properties.getProperty(propertyName);
return value;
}
/**
* 描述:返回一个根据当前时间生成的文件名
* @param originName
* @return
*/
public static String getCurrentTimeFileName(String originName){
String timespan = new SimpleDateFormat("yyyyMMddHHmmss").format(new Date())+1;// 当前时间转化为yyyymmddhhmmss;
String ext = originName.substring(originName.lastIndexOf(".") + 1);
String targetFileName =timespan + "."+ ext;
return targetFileName;
}
/**
* 返回上传目标文件夹的路径(绝对路径)
* @return
*/
public static String getFilePathByPropertyName(String propertyName){
return getPropertiesValue("imgServer.path")+getPropertiesValue(propertyName);
}

/**
* 上传用户头像
* @param file
* @param propertyName
* @return
*/
public static String uploadUserPhoto(MultipartFile file){
String newFileName = UploadUtils.getCurrentTimeFileName(file.getOriginalFilename());
String targetFilePath = getFilePathByPropertyName("userphoto.img.path");
File folder = new File(targetFilePath);
File targetFile = new File(targetFilePath+newFileName);
if(!folder.exists()&&!folder.isDirectory()){
folder.mkdirs();
}
try {
file.transferTo(targetFile);
} catch (IllegalStateException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return getPropertiesValue("userphoto.img.path")+targetFile.getName();
}

}

springmvc中：

<!-- 上传文件 -->
<bean id="multipartResolver"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<!-- one of the properties available; the maximum file size in bytes -->
<!-- 5M -->
<property name="defaultEncoding" value="utf-8" />
<property name="maxUploadSize" value="10485760000000" />
</bean>
</beans>

java代码：

//保存个人用户信息
@RequestMapping(value = "savePersonInfo", method = RequestMethod.POST, produces = "text/html;charset=UTF-8")
@ResponseBody
public String savePersonInfo(String education,@RequestParam(value = "userPhoto", required = false) MultipartFile file,
HttpServletRequest req,HttpServletResponse respons) {
respons.setHeader("Access-Control-Allow-Origin", "*");
Object obj = req.getSession().getAttribute("userId");
String userId = "";
if (obj != null) {
userId = obj.toString();
}
if (StringUtils.isNotBlank(userId)){
req.setAttribute("filePath", fileKey);
String imgPath = null;
if(file!=null&&!file.isEmpty()){
imgPath = UploadUtils.uploadUserPhoto(file);
}
return portalService.savePersonUserInfo(userId, education,imgPath);
}else{
Gson gson = new Gson();
Map<String,Object> map = new HashMap<String,Object>();
map.put("success", false);
map.put("code", "notLogin");
return gson.toJson(map);
}
}