springMVC多文件上传并处理文件名
页面：
<html>
<head>
<script type="text/javascript" src="js/jquery-1.4.4.min.js"></script>
<script type="text/javascript" src="js/jquery.form.js"></script>
</head>
<body>
<form id="form" action="register.do" method="post" enctype="multipart/form-data">
<label>请插入图片</label><input type="button" value="新增" id="add"><br>
<table id="table">
<tr><td>1</td><td><input name="file" type="file" /></td></tr>
</table>
<input type="button" id="btn" value="上传">
</form>
</body>
<script type="text/javascript">
$(function () {
$("#btn").click(function () {
$("#form").ajaxSubmit(
function(data){
if(data==1)alert("上传成功！");
else alert("上传失败！");
}
);
});
var s=1;
$("#add").click(function(){
var size=document.getElementsByTagName("tr").length;
if(size<10){
s++;
var str="<tr><td>"+s+"</td><td><input name='file' type='file' /></td></tr>";
$("#table").append(str);
}else{
alert("最多一次上传10个文件！");
}
})
});
</script>
</html>springMVC后台处理
@RequestMapping(value="register.do")
public void registerUser(HttpServletRequest req,HttpServletResponse res,ModelAndView model){
String path = req.getSession().getServletContext().getRealPath("/upload/"); // 获取本地存储路径
MultipartHttpServletRequest mul = (MultipartHttpServletRequest) req;
List<MultipartFile> files=mul.getFiles("file");
int msg=1;
try {
for(int i=0;i<files.size();i++){
CommonsMultipartFile mf=(CommonsMultipartFile) files.get(i);
File file=new File(path + "/"+mf.getOriginalFilename());
int index=mf.getOriginalFilename().lastIndexOf(".");
String filename=mf.getOriginalFilename().substring(0, index);
String extendname=mf.getOriginalFilename().substring(index);
int ex=1;
while(file.exists()){
file=new File(path + "/"+filename+"("+ex+")"+extendname);
ex++;
}
mf.getFileItem().write(file);
}
} catch (Exception e) {
msg=0;
e.printStackTrace();
}
try {
res.getWriter().print(msg);
} catch (IOException e) {
e.printStackTrace();
}
}
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