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最新评论
-
zuxianghuang:
通过pom上传报错 Artifact upload faile ...
nexus上传了jar包.通过maven引用当前jar,不能取得jar的依赖 -
流年末年:
百度网盘的挂了吧???
SSO单点登录系列3:cas-server端配置认证方式实践(数据源+自定义java类认证) -
953434367:
UfgovDBUtil 是什么类
Java发HTTP POST请求(内容为xml格式) -
smilease:
帮大忙了,非常感谢
freemaker自动生成源代码 -
syd505:
十分感谢作者无私的分享,仔细阅读后很多地方得以解惑。
Nginx 反向代理、负载均衡、页面缓存、URL重写及读写分离详解
spring支持在网络应用程序处理文件上传,提供拔插的org.springframework.web.multipart.MultipartResolver对象 。
在写上传文件的前提下需提供两个jar包:
1.添加上传拦截,可指定上传的大小
- <!-- 上传拦截,如最大上传值及最小上传值 -->
- <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>
<!-- 上传拦截,如最大上传值及最小上传值 --> <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>
2.添加java后台处理的API
- @RequestMapping(value = "/form", method = RequestMethod.POST)
- public String handleFormUpload(@RequestParam("name") String name,
- @RequestParam("file") MultipartFile file) {
- if (!file.isEmpty()) {
- byte[] bytes = file.getBytes();
- // 去理上传写文件代码
- }
@RequestMapping(value = "/form", method = RequestMethod.POST) public String handleFormUpload(@RequestParam("name") String name, @RequestParam("file") MultipartFile file) { if (!file.isEmpty()) { byte[] bytes = file.getBytes(); // 去理上传写文件代码 }
具体文件
spring_mvc.xml
- <?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:p="http://www.springframework.org/schema/p"
- xmlns:context="http://www.springframework.org/schema/context"
- xsi:schemaLocation="
- http://www.springframework.org/schema/beans
- http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
- http://www.springframework.org/schema/context
- http://www.springframework.org/schema/context/spring-context-3.0.xsd">
- <!-- 注解资源扫描包路径 -->
- <context:component-scan base-package="org.spring.mvc" />
- <bean
- class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping" />
- <bean
- class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" />
- <!-- 对模型视图名称的解析,即在模型视图名称添加前后缀,在requestmapping输入的地址后自动调用该类进行视图解析-->
- <bean id="viewResolver"
- class="org.springframework.web.servlet.view.InternalResourceViewResolver">
- <property name="viewClass"
- value="org.springframework.web.servlet.view.JstlView" />
- <property name="prefix" value="/" /><!-- 跳转页面的前缀路径 如 /web-inf/user/ -->
- <property name="suffix" value=".jsp"></property><!-- 跳转页面后缀 如 helloWorld.jsp-->
- </bean>
- <!-- 上传拦截,如最大上传值及最小上传值 -->
- <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>
- </beans>
<?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:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd"> <!-- 注解资源扫描包路径 --> <context:component-scan base-package="org.spring.mvc" /> <bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping" /> <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" /> <!-- 对模型视图名称的解析,即在模型视图名称添加前后缀,在requestmapping输入的地址后自动调用该类进行视图解析--> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" /> <property name="prefix" value="/" /><!-- 跳转页面的前缀路径 如 /web-inf/user/ --> <property name="suffix" value=".jsp"></property><!-- 跳转页面后缀 如 helloWorld.jsp--> </bean> <!-- 上传拦截,如最大上传值及最小上传值 --> <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> </beans>
FileUploadController.java文件
- package org.spring.mvc.upload;
- import java.io.FileOutputStream;
- import java.io.IOException;
- import java.io.InputStream;
- import java.util.List;
- import org.slf4j.Logger;
- import org.slf4j.LoggerFactory;
- import org.spring.mvc.HelloWorldController;
- import org.springframework.stereotype.Controller;
- import org.springframework.web.bind.annotation.RequestMapping;
- import org.springframework.web.bind.annotation.RequestMethod;
- import org.springframework.web.bind.annotation.RequestParam;
- import org.springframework.web.multipart.MultipartFile;
- import org.springframework.web.multipart.MultipartHttpServletRequest;
- /**
- * 上传文件
- * @author chenyw
- *
- */
- @Controller
- @RequestMapping(value = "/toFileUpload")
- public class FileUploadController {
- private Logger logger = LoggerFactory.getLogger(HelloWorldController.class);
- /**
- * 单文件上传
- * @param name @RequestParam 取得name字段的值
- * @param file 文件
- * @return
- * @throws IOException
- */
- @RequestMapping(value = "/oneFileUpload", method = RequestMethod.POST)
- public String handleFormUpload(@RequestParam("name")
- String name, @RequestParam("file")
- MultipartFile file) throws IOException {
- logger.info("name:"+name);
- logger.info("上传文件:"+file.getOriginalFilename());
- if (!file.isEmpty()) {
- this.copyFile(file.getInputStream(), file.getOriginalFilename());
- }
- return "fileUpload/success";
- }
- /**
- * 多文件上传
- * @param request
- * @param name
- * @return
- * @throws Exception
- */
- @RequestMapping(value = "/multipartFileUpload",method = RequestMethod.POST)
- public String upload2(
- MultipartHttpServletRequest request ,
- @RequestParam("name") String name // 页面上的控件值
- ) throws Exception {
- List<MultipartFile> files = request.getFiles("file");
- for( int i=0; i<files.size() ;i++){
- if(! files.get(i).isEmpty()) {
- logger.info("上传文件:"+files.get(i).getOriginalFilename());
- this.copyFile(files.get(i).getInputStream(), files.get(i).getOriginalFilename());
- }
- }
- logger.info("success");
- return "fileUpload/success";
- }
- /**
- * 写文件到本地
- * @param in
- * @param fileName
- * @throws IOException
- */
- private void copyFile(InputStream in,String fileName) throws IOException{
- FileOutputStream fs = new FileOutputStream("d:/upload/"
- + fileName);
- byte[] buffer = new byte[1024 * 1024];
- int bytesum = 0;
- int byteread = 0;
- while ((byteread = in.read(buffer)) != -1) {
- bytesum += byteread;
- fs.write(buffer, 0, byteread);
- fs.flush();
- }
- fs.close();
- in.close();
- }
- }
package org.spring.mvc.upload; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.util.List; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.spring.mvc.HelloWorldController; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.multipart.MultipartFile; import org.springframework.web.multipart.MultipartHttpServletRequest; /** * 上传文件 * @author chenyw * */ @Controller @RequestMapping(value = "/toFileUpload") public class FileUploadController { private Logger logger = LoggerFactory.getLogger(HelloWorldController.class); /** * 单文件上传 * @param name @RequestParam 取得name字段的值 * @param file 文件 * @return * @throws IOException */ @RequestMapping(value = "/oneFileUpload", method = RequestMethod.POST) public String handleFormUpload(@RequestParam("name") String name, @RequestParam("file") MultipartFile file) throws IOException { logger.info("name:"+name); logger.info("上传文件:"+file.getOriginalFilename()); if (!file.isEmpty()) { this.copyFile(file.getInputStream(), file.getOriginalFilename()); } return "fileUpload/success"; } /** * 多文件上传 * @param request * @param name * @return * @throws Exception */ @RequestMapping(value = "/multipartFileUpload",method = RequestMethod.POST) public String upload2( MultipartHttpServletRequest request , @RequestParam("name") String name // 页面上的控件值 ) throws Exception { List<MultipartFile> files = request.getFiles("file"); for( int i=0; i<files.size() ;i++){ if(! files.get(i).isEmpty()) { logger.info("上传文件:"+files.get(i).getOriginalFilename()); this.copyFile(files.get(i).getInputStream(), files.get(i).getOriginalFilename()); } } logger.info("success"); return "fileUpload/success"; } /** * 写文件到本地 * @param in * @param fileName * @throws IOException */ private void copyFile(InputStream in,String fileName) throws IOException{ FileOutputStream fs = new FileOutputStream("d:/upload/" + fileName); byte[] buffer = new byte[1024 * 1024]; int bytesum = 0; int byteread = 0; while ((byteread = in.read(buffer)) != -1) { bytesum += byteread; fs.write(buffer, 0, byteread); fs.flush(); } fs.close(); in.close(); } }
单文件上传页面oneFileUpload.jsp
- <%@ page language="java" import="java.util.*" pageEncoding="GBK"%>
- <%
- String path = request.getContextPath();
- String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
- %>
- <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
- <html>
- <head>
- <base href="<%=basePath%>">
- <title>My JSP 'oneFileUpload.jsp' starting page</title>
- <meta http-equiv="pragma" content="no-cache">
- <meta http-equiv="cache-control" content="no-cache">
- <meta http-equiv="expires" content="0">
- <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
- <meta http-equiv="description" content="This is my page">
- <!--
- <link rel="stylesheet" type="text/css" href="styles.css">
- -->
- </head>
- <body>
- This is my onefileUpload page. <br>
- <form method="POST" action="toFileUpload/oneFileUpload" enctype="multipart/form-data">
- <input type="text" name="name"/>
- <input type="file" name="file"/>
- <input type="submit"/>
- </form>
- </body>
- </html>
<%@ page language="java" import="java.util.*" pageEncoding="GBK"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <base href="<%=basePath%>"> <title>My JSP 'oneFileUpload.jsp' starting page</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="This is my page"> <!-- <link rel="stylesheet" type="text/css" href="styles.css"> --> </head> <body> This is my onefileUpload page. <br> <form method="POST" action="toFileUpload/oneFileUpload" enctype="multipart/form-data"> <input type="text" name="name"/> <input type="file" name="file"/> <input type="submit"/> </form> </body> </html>
多文件上传页面multipartFileUpload.jsp
- <%@ page language="java" import="java.util.*" pageEncoding="GBK"%>
- <%
- String path = request.getContextPath();
- String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
- %>
- <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
- <html>
- <head>
- <base href="<%=basePath%>">
- <title>My JSP 'multipartFileUpload.jsp' starting page</title>
- <meta http-equiv="pragma" content="no-cache">
- <meta http-equiv="cache-control" content="no-cache">
- <meta http-equiv="expires" content="0">
- <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
- <meta http-equiv="description" content="This is my page">
- <!--
- <link rel="stylesheet" type="text/css" href="styles.css">
- -->
- </head>
- <body>
- This is multipartFileUpload page. <br>
- <form method="POST" action="toFileUpload/multipartFileUpload" enctype="multipart/form-data">
- <input type="text" name="name"/><br>
- <input type="file" name="file"/><br>
- <input type="file" name="file"/><br>
- <input type="submit"/><br>
- </form>
- </body>
- </html>
评论
3 楼
kcher_8
2014-03-13
多谢博主分享,终于把问题解决了。
2 楼
a52071453
2012-12-23
zhcheng 写道
我按照你写的配置上,为什么报400的错误呢!
你在试试 我亲身在项目上用的 。 把错误贴出来也可以
1 楼
zhcheng
2012-10-30
我按照你写的配置上,为什么报400的错误呢!
发表评论
-
jackson annotations注解详解
2015-01-13 11:34 18900官方WIKI:https://github.com/Fast ... -
Ehcache 整合Spring 使用页面、对象缓存
2012-11-02 19:56 1021Ehcache在很多项目中都出现过,用法也比较简 ... -
Spring 3.1 M1 中的缓存功能
2012-11-02 19:26 796本文转自:http://www.oschina.net/ ... -
深入剖析Spring Web源码(八) - 处理器映射,处理器适配器以及处理器的实现 - 基于简单控制器流程的实现
2012-10-31 13:37 12101.1.1.1 ... -
spring 源码 阅读 笔记 之 HandlerMapping
2012-10-31 12:59 1608SpringCVSBeanHTMLAnt ... -
spring mvc重复提交拦截器方法
2012-10-31 11:37 8960import javax.servlet.http.HttpS ... -
不重复配置——利用Spring通用化配置
2012-10-17 09:40 945还记得 如下这种配置吗: 1、struts2作用域 ... -
Ehcache 整合Spring 使用页面、对象缓存
2012-10-16 09:44 751Ehcache在很多项目中都出现过,用法也比较简单。一般的 ... -
SpringMVC文件上传 多文件
2012-10-15 17:27 7035必须明确告诉DispatcherServlet如何处理Mult ... -
Spring MVC 3.1新特性 生产者、消费者请求限定
2012-10-12 11:50 11026.6.5、生产者、消费者限定 6.6.5.1、基本概念 ... -
spring + mybatis 多数据源切换
2012-10-10 11:42 1522[代码] DbContextHold ... -
JasperReport与spring集成的三种方式
2012-09-26 17:29 1780最近要用JasperReport,试着和sprin ... -
Spring MVC+Jasper Report 及生成PDF的中文问题
2012-09-26 17:10 2先说两句报表框架的选择,JasperRepor ... -
Springmvc与jasperreport结合生成报表的一种方法
2012-09-26 16:42 1<script type="text/ja ... -
spring 3.1中的cache小结
2012-09-22 23:27 948spring 3.1中有cache了,下 ... -
Spring MVC和Struts2的区别
2012-09-08 08:59 10021. 机制:spring mvc的入口是servlet,而st ... -
SpringMVC + spring3.1.1 + hibernate4.1.0 集成及常见问题总结
2012-06-19 17:34 1344一 开发环境 1、动态web工程 2、部分依赖 ... -
用spring MVC 生成Excel和PDF
2012-06-16 19:16 35891 用spring MVC 生成Excel和PDF http ... -
SpringMVC+FreeMarker实现半自动静态化
2012-06-14 13:53 2465感谢imyourgod的原贴http://to ... -
文件下载(只需要简单的四步),Java中都通用
2012-06-15 08:33 1190Javadownload文件下载Spring ...
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