SpringMVC上传文件
2017-08-20 本文已影响50人
刺風
一、相关jar包
- apache-commons-fileupload.jar
- apache-commons-io.jar
二、修改配置文件
<!-- 处理文件上传 -->
<bean id="multipartResolver"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver" >
<property name="defaultEncoding" value="gbk"/> <!-- 默认编码 (ISO-8859-1) -->
<property name="maxInMemorySize" value="10240"/> <!-- 最大内存大小 (10240)-->
<property name="uploadTempDir" value="/upload/"/> <!-- 上传后的目录名 -->
<property name="maxUploadSize" value="-1"/> <!-- 最大文件大小，-1为无限止(-1) -->
</bean>
三、前端HTML代码
<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<title>springmvc中上传的实现</title>
</head>
<body>
<form action="upload.do" method="post" enctype="multipart/form-data">
<input type="text" name="name" />
<input type="file" name="file" />
<input type="submit" />
</form>
</body>
</html>
四、Controller类实现上传代码
package cfs.admin.controller;
import java.io.File;
import java.util.Date;
import javax.servlet.ServletContext;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.context.ServletContextAware;
import org.springframework.web.multipart.commons.CommonsMultipartFile;
@Controller
public class FileUploadController implements ServletContextAware {
//获取上下文对象
private ServletContext servletContext;
@Override
public void setServletContext(ServletContext context) {
this.servletContext = context;
}
@RequestMapping(value="/upload", method = RequestMethod.POST)
public String handleUploadData(String name,
@RequestParam("file") CommonsMultipartFile file){
String view_url="redirect:upload_error.jsp";
if (!file.isEmpty()) {
//获取本地存储路径
String path = this.servletContext.getRealPath("/upload/");
String fileName = file.getOriginalFilename();
String fileType = fileName.substring(fileName.lastIndexOf("."));
//新建一个文件
File file2 = new File(path,new Date().getTime() + fileType);
try {
//将上传的文件写入新建的文件中
file.getFileItem().write(file2);
} catch (Exception e) {
e.printStackTrace();
return view_url;
}
view_url= "redirect:upload_ok.jsp";
}
return view_url;
}
}
OK,至此已可以上传文件了，亲测可用，灰常简单。
