先修改pom.xml,增加对commons fileupload lib包的引用。
<dependency> <groupId>commons-io</groupId> <artifactId>commons-io</artifactId> <version>2.0.1</version> </dependency> <dependency> <groupId>commons-fileupload</groupId> <artifactId>commons-fileupload</artifactId> <version>1.2.2</version> </dependency>
再修改spring的context 配置文件,增加对MultipartResolver的引用。
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <!-- one of the properties available; the maximum file size in bytes --> <property name="maxUploadSize" value="100000" /> </bean>
增加uploader的controller类
@RequestMapping("/uploader") public String uploader(@RequestParam("name") String name, @RequestParam("file") MultipartFile file, HttpSession session){ if (!file.isEmpty()) { System.out.println(file.getSize()); } return "helloWorld"; }
增加文件上传的jsp页面
<html> <head> <title>file upload test</title> </head> <body> <form method="post" action="uploader" enctype="multipart/form-data"> <input type="text" name="name" /> <input type="file" name="file" /> <input type="submit" /> </form> </body> </html>