标签：http os java io ar for 文件 art cti
springmvc配置文件：
<?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:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd" > <!-- HandlerMapping --> <bean class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping" /> <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" > <property name="messageConverters"> <list> <bean class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter" /> </list> </property> </bean> <!-- HandlerAdapter --> <bean class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter" /> <!-- ViewResolver --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" /> <property name="prefix" value="/WEB-INF/jsp/" /> <property name="suffix" value=".jsp" /> </bean> <!--文件上传--> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <property name="maxUploadSize" value="104857600" /> <property name="maxInMemorySize" value="4096" /> <property name="defaultEncoding" value="UTF-8"></property> </bean> <mvc:annotation-driven /> <!-- 处理器 --> <!-- <bean name="/hello" class="com.mvc.jn.controller.HelloWorldController"/> --> <context:component-scan base-package="com"/> </beans>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" isELIgnored="false"%> <!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> <script type="text/javascript" src="<%=request.getContextPath()%>/jquery/jquery-1.4.4.js"></script> </head> <body> <form action="fileUpload" method="post" enctype="multipart/form-data"> <input type="file" name="file"> <input type="submit" value="upload"> </form> </body> </html>
package com.lin.controller;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Date;
import java.util.Iterator;
import java.util.List;
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.bind.annotation.ResponseBody;
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;
import com.lin.model.StudentEntity;
@Controller
@RequestMapping(value = "/")
public class MainController {
/*
* 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
*/
@RequestMapping("fileUpload")
public String fileUpload(@RequestParam("file") 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("D:/" + 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();
BufferedInputStream buf = new BufferedInputStream(is);
byte[] b = new byte[1024];
while (buf.read(b) != (-1)) {
os.write(b, 0, b.length);
}
os.flush();
os.close();
is.close();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
long endTime = System.currentTimeMillis();
System.out.println("方法一的运行时间：" + String.valueOf(endTime - startTime)
+ "ms");
return "success";
}
/*
* 采用file.Transto 来保存上传的文件
*/
@RequestMapping("fileUpload2")
public String fileUpload2(@RequestParam("file") CommonsMultipartFile file)
throws IOException {
long startTime = System.currentTimeMillis();
System.out.println("fileName：" + file.getOriginalFilename());
String path = "D:/" + new Date().getTime() + file.getOriginalFilename();
File newFile = new File(path);
// 通过CommonsMultipartFile的方法直接写文件（注意这个时候）
file.transferTo(newFile);
long endTime = System.currentTimeMillis();
System.out.println("方法二的运行时间：" + String.valueOf(endTime - startTime)
+ "ms");
return "success";
}
/*
* 采用spring提供的上传文件的方法
*/
@RequestMapping("springUpload")
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变成多部分request
MultipartHttpServletRequest multiRequest = (MultipartHttpServletRequest) request;
// 获取multiRequest 中所有的文件名
Iterator iter = multiRequest.getFileNames();
while (iter.hasNext()) {
// 一次遍历所有文件
MultipartFile file = multiRequest.getFile(iter.next()
.toString());
if (file != null) {
String path = "D:/" + 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 "success";
}
}
标签：http os java io ar for 文件 art cti
原文地址：http://blog.csdn.net/hackcoder/article/details/38901397
