ajax上传带文件的form表单，springmvc接收

数据都保存到HttpServletRequest中

@Override
public boolean insertBook(HttpServletRequest request) {
try{
//用于封装数据
Book book = new Book();

//解析请求中的数据
MultipartHttpServletRequest mpRequest = (MultipartHttpServletRequest) request;

String bookName = mpRequest.getParameter("bookName");
float price = Float.parseFloat(mpRequest.getParameter("price"));
Integer num = Integer.parseInt(mpRequest.getParameter("num"));
String date = mpRequest.getParameter("publishDate");
SimpleDateFormat format = new SimpleDateFormat("yyyy-mm-dd");
Date publishDate = format.parse(date);

//封装数据
book.setBookName(bookName);
book.setPrice(price);
book.setNum(num);
book.setPopular(0);
book.setPublishDate(publishDate);

MultipartFile file = mpRequest.getFile("imageUrl");
String path = request.getSession().getServletContext().getRealPath("bookImage");
String imageUrl = UploadUtil.uploadFile(file, path);
book.setImageUrl(imageUrl);

bookMapper.insertBook(book);
return true;
}catch(Exception e){
e.printStackTrace();
return false;
}
//return false;
}

解析存放图片的imageUrl

public static String uploadFile(MultipartFile file, String path) throws IOException{
//上传文件的真实名称
String name = file.getOriginalFilename();
//System.out.println(name);
//获取后缀名
String suffixName = name.substring(name.lastIndexOf("."));
//System.out.println(suffixName);
//自定义随机数
String hash = Integer.toHexString(new Random().nextInt());
String fileName = hash + suffixName;
//System.out.println(fileName);

File tempFile = new File(path, fileName);
if(!tempFile.getParentFile().exists()){
tempFile.getParentFile().mkdir();
}
if(tempFile.exists()){
tempFile.delete();
}
tempFile.createNewFile();
file.transferTo(tempFile);
return tempFile.getName();
}

参考文章：http://blog.csdn.net/wlphyl/article/details/51571402