jsp 界面上传单个文件

1...pom.xml

1  <dependency>
2           <groupId>commons-fileupload</groupId>
3           <artifactId>commons-fileupload</artifactId>
4           <version>1.3.1</version>
5       </dependency>

2...上传xml 配置

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <beans xmlns="http://www.springframework.org/schema/beans"
 3        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 4        xmlns:context="http://www.springframework.org/schema/context"
 5        xmlns:mvc="http://www.springframework.org/schema/mvc"
 6        xsi:schemaLocation="http://www.springframework.org/schema/beans
 7        http://www.springframework.org/schema/beans/spring-beans.xsd
 8        http://www.springframework.org/schema/context
 9        http://www.springframework.org/schema/context/spring-context.xsd
10        http://www.springframework.org/schema/mvc
11        http://www.springframework.org/schema/mvc/spring-mvc.xsd">
12     <!--开启注解  扫描包-->
13     <context:component-scan base-package="com.wsc"></context:component-scan>
14     <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
15         <property name="prefix" value="/WEB-INF/"></property>
16         <property name="suffix" value=".jsp"></property>
17     </bean>
18     <!-- 引入注解驱动-->
19     <mvc:annotation-driven></mvc:annotation-driven>
20     <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
21         <property name="maxUploadSize" value="5242880"/>
22 
23     </bean>
24 </beans>

springmvc.xml

3...web.xml

 1 <!DOCTYPE web-app PUBLIC
 2  "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 3  "http://java.sun.com/dtd/web-app_2_3.dtd" >
 4 <web-app>
 5   <display-name>Archetype Created Web Application</display-name>
 6     <filter>
 7         <filter-name>characterEncodingFilter</filter-name>
 8         <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
 9         <init-param>
10             <param-name>encoding</param-name>
11             <param-value>utf-8</param-value>
12         </init-param>
13     </filter>
14     <filter-mapping>
15         <filter-name>characterEncodingFilter</filter-name>
16         <url-pattern>/*</url-pattern>
17     </filter-mapping>
18     <servlet>
19         <servlet-name>DispatcherServlet</servlet-name>
20         <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
21         <init-param>
22             <param-name>contextConfigLocation</param-name>
23             <param-value>classpath:springmvc.xml</param-value>
24         </init-param>
25 <!--        启动tomcat按照顺序加载-->
26         <load-on-startup>1</load-on-startup>
27     </servlet>
28     <servlet-mapping>
29         <servlet-name>DispatcherServlet</servlet-name>
30         <url-pattern>/</url-pattern>
31     </servlet-mapping>
32 
33 </web-app>

View Code

4...jsp 代码

 1 <%--
 2   Created by IntelliJ IDEA.
 3   User: Administrator
 4   Date: 2019/7/9
 5   Time: 10:10
 6   To change this template use File | Settings | File Templates.
 7 --%>
 8 <%@ page isELIgnored="false" contentType="text/html;charset=UTF-8" language="java" %>
 9 <html>
10 <head>
11     <title>Title</title>
12 </head>
13 <body>
14 <a href="${pageContext.request.contextPath}/test/student1">请求1</a>
15 <a href="${pageContext.request.contextPath}/test/student">请求2</a>
16 <form action="${pageContext.request.contextPath}/test/student" method="post">
17     <input type="hidden" name="id" value="1"><br>
18     <input type="submit" value="提交">
19 </form>
20 <form action="${pageContext.request.contextPath}/test/testUpload" method="post" enctype="multipart/form-data"><!--必须设置enctype="multipart/form-data"--> 
21 姓名：<input type="text" name="userName"><br/> 
22 <input type="file" name="uploadFile"><br/> 
23 <input type="submit" value="上传"><br/> 
24 </form> 
25 </body> 
26 </html>
name值与java代码的参数一致

5...java代码

 1 package com.wsc.servlet;
 2 
 3 import org.springframework.stereotype.Controller;
 4 import org.springframework.web.bind.annotation.RequestMapping;
 5 import org.springframework.web.multipart.MultipartFile;
 6 
 7 import javax.servlet.http.HttpServletRequest;
 8 import java.io.File;
 9 import java.io.IOException;
10 import java.util.UUID;
11 
12 /**
13  * @version 1.0
14  * @ClassName UploadController
15  * @Description TODO
16  * @Author WSC
17  * @Date 2019/7/11 10:16
18  **/
19 @Controller
20 @RequestMapping("/test")
21 public class UploadController {
22     @RequestMapping("/testUpload")
23     public String testUpload(String userName, MultipartFile uploadFile, HttpServletRequest request){
24         // 1 路径
25         String realPath = request.getSession().getServletContext().getRealPath("/upload");
26         File realFile = new File(realPath);
27         if(!realFile.exists()){
28             realFile.mkdirs();
29         }
30         //2 文件的名称
31         String replace = UUID.randomUUID().toString().replace("-", "");
32         //  获取文件的真实名字
33         String originalFilename = uploadFile.getOriginalFilename();
34         System.out.println(originalFilename);
35         // 唯一的名字
36         String realName=replace+originalFilename;
37         System.out.println(realName);
38         try {
39             // 文件上传
40             uploadFile.transferTo(new File(realFile,realName));
41         } catch (IOException e) {
42             e.printStackTrace();
43         }
44         return "show";
45     }
46 }

java代码

posted @ 2019-08-16 17:01 Hi~Hi 阅读(354) 评论(0) 编辑收藏举报

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jsp 界面上传单个文件

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