本文實例為大家分享了Springmvc實現(xiàn)文件上傳的具體代碼,供大家參考,具體內容如下
1.環(huán)境搭建:
在maven的pom.xml文件中導入兩個依賴
1).commons-fileupload
2).commons-io
在resources目錄下的springmvc.xml文件中配置multipartResolver
<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation=" http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd"> <!--包掃描--> <context:component-scan base-package="cn.itcast"></context:component-scan> <!--配置multipartResolver,注意:id名稱固定為multipartResolver--> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> </bean> <mvc:annotation-driven ></mvc:annotation-driven> <!--讓靜態(tài)資源不經(jīng)過過濾器--> <mvc:resources mapping="/js/**" location="/js/"></mvc:resources> <!--視圖解析器給controller中返回的邏輯視圖名加上前綴和后綴--> <bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/pages/"></property> <property name="suffix" value=".jsp"></property> </bean></beans>
2.編寫前臺測試jsp
<form action="/test/file" method="post" enctype="multipart/form-data"> 上傳的文件:<input type="file" name="upload"><br/> 密鑰:<input type="text" name="password"><br/> <input type="submit" value="提交"> </form>
注意頁面三要素:
1).表單提交方式必須為post
2).表單中必須有file域,即type="file"
3).表單中enctype="multipart/form-data"
3.編寫后臺測試代碼
@Controller@RequestMapping("/test")public class FileUploadController { @RequestMapping("/file") public String testFileUpload(HttpServletRequest request, MultipartFile upload) throws IOException { //upload是表單中文件name屬性值,必須保持一致 System.out.println("testFileUpload..."); String realPath = request.getSession().getServletContext().getRealPath("/uploads"); File file = new File(realPath); if(!file.exists()){ file.mkdirs();//創(chuàng)建文件夾 } String filename = upload.getOriginalFilename(); //獲取文件名 String name = upload.getName();//獲取表單中的name屬性值 即upload String uuid = UUID.randomUUID().toString().replaceAll("-", "");//生成uuid避免文件名重復導致沖突覆蓋 filename=uuid+"_"+filename; upload.transferTo(new File(file,filename)); return "forward:success.jsp";}
以上就是本文的全部內容,希望對大家的學習有所幫助,也希望大家多多支持VeVb武林網(wǎng)。
新聞熱點
疑難解答
圖片精選