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SpringMVC上传文件FileUpload使用方法详解

转载 作者：qq735679552 更新时间：2022-09-28 22:32:09 25 4
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这篇CFSDN的博客文章SpringMVC上传文件FileUpload使用方法详解由作者收集整理，如果你对这篇文章有兴趣，记得点赞哟.

本文实例为大家分享了SpringMVC上传文件FileUpload的具体代码，供大家参考，具体内容如下 。

我是在已经搭建好的springMVC环境下，maven工程中的pom.xml所需要的jar包（其中spring上传文件的两个主要jar：commons-fileupload.jar和commons-io.jar）:

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<project xmlns= "http://maven.apache.org/POM/4.0.0" xmlns:xsi= "http://www.w3.org/2001/XMLSchema-instance"
   xsi:schemaLocation= "http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd" >
   <modelVersion> 4.0 . 0 </modelVersion>
   <groupId>com.zhihua</groupId>
   <artifactId>SpringMVC_FileUpload</artifactId>
   <packaging>war</packaging>
   <version> 0.0 . 1 -SNAPSHOT</version>
   <name>SpringMVC_FileUpload Maven Webapp</name>
   <url>http: //maven.apache.org</url>
   <properties>
     <!-- spring版本号 -->
     <spring.version> 3.2 . 8 .RELEASE</spring.version>
     <!-- junit版本号 -->
     <junit.version> 4.10 </junit.version>
   </properties>
   <dependencies>
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
       <version> 3.8 . 1 </version>
       <scope>test</scope>
     </dependency>
     <!-- springMVC上传文件依赖 -->
     <dependency>
       <groupId>commons-fileupload</groupId>
       <artifactId>commons-fileupload</artifactId>
       <version> 1.3 . 1 </version>
     </dependency>
     <!-- 添加Spring依赖 -->
     <dependency>
       <groupId>org.springframework</groupId>
       <artifactId>spring-core</artifactId>
       <version>${spring.version}</version>
     </dependency>
     <dependency>
       <groupId>org.springframework</groupId>
       <artifactId>spring-webmvc</artifactId>
       <version>${spring.version}</version>
     </dependency>
     <dependency>
       <groupId>org.springframework</groupId>
       <artifactId>spring-context</artifactId>
       <version>${spring.version}</version>
     </dependency>
     <dependency>
       <groupId>org.springframework</groupId>
       <artifactId>spring-context-support</artifactId>
       <version>${spring.version}</version>
     </dependency>
     <dependency>
       <groupId>org.springframework</groupId>
       <artifactId>spring-aop</artifactId>
       <version>${spring.version}</version>
     </dependency>
     <dependency>
       <groupId>org.springframework</groupId>
       <artifactId>spring-aspects</artifactId>
       <version>${spring.version}</version>
     </dependency>
     <dependency>
       <groupId>org.springframework</groupId>
       <artifactId>spring-tx</artifactId>
       <version>${spring.version}</version>
     </dependency>
     <dependency>
       <groupId>org.springframework</groupId>
       <artifactId>spring-jdbc</artifactId>
       <version>${spring.version}</version>
     </dependency>
     <dependency>
       <groupId>org.springframework</groupId>
       <artifactId>spring-web</artifactId>
       <version>${spring.version}</version>
     </dependency>
     <!--spring单元测试依赖 -->
     <dependency>
       <groupId>org.springframework</groupId>
       <artifactId>spring-test</artifactId>
       <version>${spring.version}</version>
       <scope>test</scope>
     </dependency>
     <!-- jstl标签支持 -->
     <dependency>
       <groupId>jstl</groupId>
       <artifactId>jstl</artifactId>
       <version> 1.2 </version>
     </dependency>
     <!-- Servlet核心包 -->
     <dependency>
       <groupId>javax.servlet</groupId>
       <artifactId>javax.servlet-api</artifactId>
       <version> 3.0 . 1 </version>
       <scope>provided</scope>
     </dependency>
     <!--JSP -->
     <dependency>
       <groupId>javax.servlet.jsp</groupId>
       <artifactId>jsp-api</artifactId>
       <version> 2.1 </version>
       <scope>provided</scope>
     </dependency>
   </dependencies>
   <build>
     <finalName>SpringMVC_FileUpload</finalName>
   </build>
</project>

在spring-mvc.xml中添加代码:

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<!-- springMVC上传文件时，需要配置MultipartResolver处理器 -->
   < 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 >

前端页面（fileUpload.jsp）和上传成功返回页面（success.jsp）

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<%@ page language="java" contentType="text/html; charset=UTF-8"
   pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
< html >
< head >
< meta http-equiv = "Content-Type" content = "text/html; charset=UTF-8" >
< title >springmvc-文件上传</ title >
</ head >
< body >
   < h1 >采用流的方式上传文件</ h1 >
   < form name = "form1" action="<c:url value = '/fileUpload/upload_01' />" method="post" enctype="multipart/form-data">
     < input type = "file" name = "file_01" />
     < input type = "submit" value = "fileupload" />
   </ form >
   < br >
   < h1 >采用multipart提供的file.transfer方法上传文件1</ h1 >
   < form name = "form2" action="<c:url value = '/fileUpload/upload_02' />" method="post" enctype="multipart/form-data">
     < input type = "file" name = "file_02" />
     < input type = "submit" value = "fileupload" />
   </ form >
   < br >
   < h1 >采用multipart提供的file.transfer方法上传文件2</ h1 >
   < form name = "form2" action="<c:url value = '/fileUpload/upload_03' />" method="post" enctype="multipart/form-data">
     < input type = "file" name = "file_03" />
     < input type = "submit" value = "fileupload" />
   </ form >
   < br >
   < h1 >使用spring MVC提供的方法上传文件</ h1 >
   < form name = "form2" action="<c:url value = '/fileUpload/upload_spring' />" method="post" enctype="multipart/form-data">
     < input type = "file" name = "file_03" />
     < input type = "submit" value = "fileupload" />
   </ form >
</ body >
</ html >

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<%@ page language="java" contentType="text/html; charset=UTF-8"
   pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
< html >
< head >
< meta http-equiv = "Content-Type" content = "text/html; charset=UTF-8" >
< title >Insert title here</ title >
</ head >
< body >
   < h2 >文件上传成功！</ h2 >
</ body >
</ html >

controller 的代码:

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package com.zhihua.controller;
 
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Date;
import java.util.Iterator;
 
import javax.servlet.http.HttpServletRequest;
 
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;
import org.springframework.web.multipart.commons.CommonsMultipartFile;
import org.springframework.web.multipart.commons.CommonsMultipartResolver;
 
@Controller
@RequestMapping ( "/fileUpload" )
public class FileUploadController {
 
   /**
    * 通过流的方式上传文件
    * @RequestParam("file") 将name=file控件得到的文件封装成CommonsMultipartFile 对象
    * <请替换成功能描述> <br>
    * <请替换成详细描述>
    * @param file
    * @return
    * @author caizh
    * @since [1.0.0]
    * @version [1.0.0,2017年2月5日]
    */
   @RequestMapping ( "/upload_01" ) 
   public String fileUpload_1( @RequestParam ( "file_01" )CommonsMultipartFile file) throws IOException {
     //用来检测程序运行时间
     long startTime = System.currentTimeMillis();
     System.out.println( "fileName:" +file.getOriginalFilename());
 
     try {
       //获取输出流
       OutputStream os = new FileOutputStream( "E:/" + new Date().getTime()+file.getOriginalFilename());
       //获取输入流CommonsMultipartFile中可以直接得到文件的流
       InputStream is = file.getInputStream();
       int temp;
       //一个一个字节的读取并写入
       while ((temp=is.read())!=(- 1 )){
         os.write(temp);
       }
       os.flush();
       os.close();
       is.close();
     } catch (Exception e){
       e.printStackTrace();
     }
     long endTime = System.currentTimeMillis();
     System.out.println( "方法一的运行时间：" +String.valueOf(endTime-startTime)+ "ms" );
     return "view/success" ;
   }
 
   /**
    * 采用file.Transto 来保存上传的文件
    * <请替换成功能描述> <br>
    * <请替换成详细描述>
    * @param file
    * @return
    * @throws IOException
    * @author caizh
    * @since [1.0.0]
    * @version [1.0.0,2017年2月5日]
    */
   @RequestMapping ( "/upload_02" )
   public String fileUpload_2( @RequestParam ( "file_02" ) CommonsMultipartFile file) throws IOException {
     long startTime = System.currentTimeMillis();
     System.out.println( "fileName:" +file.getOriginalFilename());
     String path = "E:/" + new Date().getTime()+file.getOriginalFilename();
 
     File newFile = new File(path);
     //通过CommonsMultipartFile 的方法直接写文件
     file.transferTo(newFile);
     long endTime = System.currentTimeMillis();
     System.out.println( "方法二的运行时间：" +String.valueOf(endTime-startTime)+ "ms" );
     return "view/success" ;   
   }
 
   /**
    * 使用MultipartFile上传文件
    * <请替换成功能描述> <br>
    * <请替换成详细描述>
    * @param file
    * @return
    * @author caizh
    * @since [1.0.0]
    * @version [1.0.0,2017年2月5日]
    */
   @RequestMapping ( "/upload_03" )
   public String fileUpload_3( @RequestParam (value= "file_03" ,required= false )MultipartFile file,
       HttpServletRequest request){
     String path = request.getSession().getServletContext().getRealPath( "upload" );
     System.out.println(path);
     String fileName = file.getOriginalFilename();
     File targetFile = new File(path,fileName);
     if (!targetFile.exists()){
       targetFile.mkdirs();
     }
     //保存
     try {
       file.transferTo(targetFile);
     } catch (Exception e){
       e.printStackTrace();
     }
     return "view/success" ;
   }
 
   /**
    * 采用spring提供的上传文件的方法
    * <请替换成功能描述> <br>
    * <请替换成详细描述>
    * @param request
    * @return
    * @throws IllegalStateException
    * @throws IOException
    * @author caizh
    * @since [1.0.0]
    * @version [1.0.0,2017年2月5日]
    */
   @RequestMapping ( "/upload_spring" )
   public String springUpload(HttpServletRequest request) throws IllegalStateException, IOException{
     long startTime = System.currentTimeMillis();
     //将当前上下文初始化给 CommonsMutipartResolver (多部分解析器)
     CommonsMultipartResolver multipartResolver = new CommonsMultipartResolver(request.getSession().getServletContext());
     //检查form中是否有enctype="multipart/form-data"
     if (multipartResolver.isMultipart(request))
     {
       //将request变成多request
       MultipartHttpServletRequest multiRequest = (MultipartHttpServletRequest)request;
       //获取multiRequest中所有的文件名
       Iterator iter = multiRequest.getFileNames();
 
       while (iter.hasNext()){
         //一次遍历所有的文件
         MultipartFile file = multiRequest.getFile(iter.next().toString());
         if (file!= null ){
           String path = "E:/springUpload" +file.getOriginalFilename();
           //上传
           file.transferTo( new File(path));
         }
       }
     }
     long endTime = System.currentTimeMillis();
     System.out.println( "方法三的运行时间：" +String.valueOf(endTime-startTime)+ "ms" );   
     return "view/success" ;
   }
 
}

好了，全部代码都给出了，博主是测试成功了，感兴趣的朋友可以去比较不同上传方式的效率！ 。

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持我.

原文链接：http://blog.csdn.net/hundan_520520/article/details/54880319 。

最后此篇关于SpringMVC上传文件FileUpload使用方法详解的文章就讲到这里了,如果你想了解更多关于SpringMVC上传文件FileUpload使用方法详解的内容请搜索CFSDN的文章或继续浏览相关文章，希望大家以后支持我的博客！ 。

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