工作中遇到的小问题，做个笔记
实现springMVC + jsp + ajax 上传文件
HTML
<body>
<form id="myform" method="post" >
登录名<input type="text" name="loginName" />
<br>
上传录音<input type="file" name="record" />
<input type="button" onclick="doUpload()" value="提交" />
</form>
</body>
javascript
function doUpload() {
var formData = new FormData($( "#myform" )[0]);
$.ajax({
url: ‘insert/fileupload.action‘ ,
type: ‘POST‘,
data: formData,
async: false,
cache: false,
contentType: false,
processData: false,
success: function (returndata) {
alert(returndata);
},
error: function (returndata) {
alert(returndata);
}
});
}
springMVC.xml
<!-- 配置文件上传解析器 -->
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<property name="defaultEncoding" value="utf-8"/>
<property name="maxUploadSize" value="10485760000"/>
<property name="maxInMemorySize" value="40960"/>
</bean>
java
RequestMapping("fileupload")
public void fileupload(HttpServletRequest request,HttpServletResponse response,String loginName) throws Exception {
//获取服务器中保存文件的路径
String path = request.getSession().getServletContext().getRealPath("")+"\\upload\\record\\";
System.out.println(path);
//获取解析器
CommonsMultipartResolver resolver = new CommonsMultipartResolver(request.getSession().getServletContext());
//判断是否是文件
if(resolver.isMultipart(request)){
//进行转换
MultipartHttpServletRequest multiRequest = (MultipartHttpServletRequest)(request);
//获取所有文件名称
Iterator<String> it = multiRequest.getFileNames();
while(it.hasNext()){
//根据文件名称取文件
MultipartFile file = multiRequest.getFile(it.next());
String fileName = file.getOriginalFilename();
String localPath = path + fileName;
//创建一个新的文件对象，创建时需要一个参数，参数是文件所需要保存的位置
File newFile = new File(localPath);
//上传的文件写入到指定的文件中
file.transferTo(newFile);
}
}
时间： 2024-10-23 09:45:00