springMVC--(讲解5)文件上传与传参测试

时间 2019-11-12

原文原文链接

#1.下载jar包html

<!-- file -->
 	<dependency>
    	<groupId>commons-fileupload</groupId>
    	<artifactId>commons-fileupload</artifactId>
    	<version>1.3.1</version>
	</dependency>
	<dependency>
    	<groupId>commons-io</groupId>
    	<artifactId>commons-io</artifactId>
    	<version>2.4</version>
	</dependency>

#2.配置springmvc.xmlweb

<!-- 文件上传 -->
	<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
		<property name="defaultEncoding" value="utf-8"></property>
		<property name="maxUploadSize" value="10485760000"></property>
		<property name="maxInMemorySize" value="40960"></property>
	</bean>

#3.controller层spring

/**
	 * 测试mvc
	 * [@throws](https://my.oschina.net/throws) IOException 
	 * [@throws](https://my.oschina.net/throws) ServletException 
	 */
	@RequestMapping(value="/uploadFile",method= RequestMethod.POST)
	public String uploadFile(@RequestParam("file") CommonsMultipartFile file,@RequestParam("name") String name,HttpServletRequest req) throws IOException {
		//参数
		String tmpName = name;
		//获取文件名
		String fileName = file.getOriginalFilename();
		//获取上传文件的路径(项目的绝对路径)
		String path = req.getSession().getServletContext().getRealPath("/upload");
		//获取文件流
		InputStream is = file.getInputStream();
		//输出目的地
		OutputStream os = new FileOutputStream(new File(path,file.getOriginalFilename()));
		int len = 0;
		byte[] buffer = new byte[512];
		while ((len=is.read(buffer)) != -1) {
			os.write(buffer, 0, len);
			os.flush();
		}
		os.close();
		is.close();
		return "index.jsp";
	}

#4.jsp页面mvc

<html>
<head>
	<meta charset="UTF-8"> 
 </head>
<body>
<h2>Hello World!</h2>
	<form action="uploadFile" method="post" enctype="multipart/form-data">
		file:<input type="file" name="file"><br>
		name:<input type="text" name="name"><br>
		<input type="submit" value="提交">
	</form>
</body>
</html>