jquery的ajaxSubmit()异步上传图片并保存表单数据演示代码

一：web (add.jsp) 

代码如下:

<%@page import="com.fingerknow.project.vo.UserInformation"%> 
<%@ page language="java" contentType="text/html; charset=utf-8" 
pageEncoding="utf-8"%> 
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %> 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
<% 
response.setCharacterEncoding("utf-8");//这个是设置编码方式 
response.setContentType("text/html");//这个是设置网页类型，为文本代码 
UserInformation user=null; 
String username=""; 
Integer userId=null; 
if(request.getSession().getAttribute("userinfo")!=null){ 
user=(UserInformation)request.getSession().getAttribute("userinfo"); 
username=user.getUsername(); 
userId=user.getUserId(); 
}else{ 
username="请登录"; 
} 
%> 
 
 

 

 

 

 

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二：service(FileUploadController.java ----springMVC 之controller层) 

复制代码代码如下:

@Controller 
@RequestMapping(value = "/upload") 
public class FileUploadController { 
private Logger logger; 
@RequestMapping(value = "upload.do", method = RequestMethod.POST) 
public void fileUpload(HttpServletRequest request, HttpServletResponse response) { 
Map resultMap = new HashMap(); 
String newRealFileName = null; 
try { 
MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request; 
CommonsMultipartFile file = (CommonsMultipartFile) multipartRequest.getFile("file"); 
// 获得文件名： 
String realFileName = file.getOriginalFilename(); 
if(file.getSize()/1024>=5*1024){ 
resultMap.put("status", 1); 
resultMap.put("message", "图片不能大于5M"); 
}else{ 
System.out.println("获得文件名：" + realFileName); 
newRealFileName = FileUploadController.getNowTime() + realFileName.substring(realFileName.indexOf(".")); 
// 获取路径 
String ctxPath = request.getSession().getServletContext().getRealPath("//") + "//temp//"; 
// 创建文件 
File dirPath = new File(ctxPath); 
if (!dirPath.exists()) { 
dirPath.mkdir(); 
} 
File uploadFile = new File(ctxPath + newRealFileName); 
FileCopyUtils.copy(file.getBytes(), uploadFile); 
request.setAttribute("files", loadFiles(request)); 
resultMap.put("status", 0); 
resultMap.put("fileName", newRealFileName); 
} 
} catch (Exception e) { 
resultMap.put("status", 1); 
resultMap.put("message", "图片上传出错"); 
logger.info("***** 图片上传出错 *****"); 
System.out.println(e); 
} finally { 
PrintWriter out = null; 
try { 
out = response.getWriter(); 
} catch (IOException e) { 
e.printStackTrace(); 
} 
//必须设置字符编码，否则返回json会乱码 
response.setContentType("text/html;charset=UTF-8"); 
out.write(JSONSerializer.toJSON(resultMap).toString()); 
out.flush(); 
out.close(); 
} 
} 
}