index.jsp
<%@ 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> ${name} <form action="uplode.do" method="post" enctype="multipart/form-data"> <input type="file" name="file" /> <input type="submit" value="上传"/> </form> </body> </html>
多文件上传
<form action="bateh.do" method="post" enctype="multipart/form-data"> 1<input type="file" name="file" /> 2<input type="file" name="file" /> <input type="submit" value="上传"/> </form>
iotest.java
package cn.zys.controller; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; 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.commons.CommonsMultipartFile; @Controller public class IoTest { @RequestMapping("/uplode") public String uplode(@RequestParam("file")CommonsMultipartFile cmf,HttpServletRequest req) throws IOException{ //获取文件名 //获取文件的路径 String path = req.getRealPath("/fileuplode"); InputStream is = cmf.getInputStream(); System.out.println(cmf.getOriginalFilename()); System.out.println(path); OutputStream os = new FileOutputStream(new File(path,cmf.getOriginalFilename())); int len = 0; byte[] buffer = new byte[1024]; while((len = is.read(buffer))!=-1) os.write(buffer,0,len); os.close(); is.close(); return "/yes.jsp"; }
//多文件上传
@RequestMapping("/bateh")
public String bateh(@RequestParam("file")CommonsMultipartFile cmf[],HttpServletRequest req) throws IOException{
//获取文件名
//获取文件的路径
String path = req.getRealPath("/fileuplode");
for(int i = 0; i<cmf.length; i++){
InputStream is = cmf[i].getInputStream();
System.out.println(cmf[i].getOriginalFilename());
System.out.println(path);
OutputStream os = new FileOutputStream(new File(path,cmf[i].getOriginalFilename()));
int len = 0;
byte[] buffer = new byte[1024];
while((len = is.read(buffer))!=-1)
os.write(buffer,0,len);
os.close();
is.close();
}
return "/yes.jsp";
}
}
mvc.xml（一部分）
<!-- 文件上传配置 --> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <!-- defaultEncoding：请求的编码格式必须和用户JSP的编码一致，以便正确读取表单中的内容。 uploadTempDir:文件上传过程中的临时目录，上传完成后，临时文件会自动删除 maxUploadSize:设置文件上传大小上限（单位为字节）-1为无限制 --> <property name="defaultEncoding" value="UTF-8" /> <property name="maxUploadSize" value="102400000" /> <property name="maxInMemorySize" value="40960"></property> <!-- uploadTempDir可以不做设置，有默认的路径，上传完毕会临时文件会自动被清理掉 --> </bean>