Spring MVC 单个文件上传

Spring MVC 单个文件上传

首先在springmvc.xml配置上传

<bean id="multipartResolver"class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<property name="maxUploadSize" value="1024000"/>
</bean>

然后在前台jsp页面写form表单

<form action="${pageContext.request.contextPath}/upload/oneUpload" method="post" enctype="multipart/form-data">
<input type="file" name="imageFile"/>
<br/>
<input type="submit" >
</form>

最后在写后端代码

@Controller
@RequestMapping("upload")
public class UploadController {

@RequestMapping("oneUpload")
public String upload(@RequestParam("imageFile") MultipartFile imageFile,HttpServletRequest requset){
System.out.println("moreUpload");
//上传储存的位置
String uploadUrl = requset.getSession().getServletContext().getRealPath("/")+"upload/";
//获取文件名字
String filename = imageFile.getOriginalFilename();
//判断文件夹是否存在   不存在就创建
File dir = new File(uploadUrl);
if(!dir.exists()){
dir.mkdirs();
}
System.out.println("文件上传路径"+uploadUrl+filename);
//创建目标文件
File targetFale = new File(uploadUrl+filename);
if(!targetFale.exists()){
try {
targetFale.createNewFile();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
//上传管道
try {
imageFile.transferTo(targetFale);
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

return "";
}

}