Spring MVC实现多文件上传 -

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Spring MVC实现多文件上传

博客分类：

SpringMVC

spring

import java.io.File;
import java.io.IOException;
import java.util.Iterator;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;
import org.springframework.web.multipart.commons.CommonsMultipartResolver;

@Controller
@RequestMapping("/upload")
public class testUpload {
@RequestMapping("/open")
public String open(){
System.out.println("s");
return "common/test";

}
@RequestMapping("/upload2")
    public String upload2(HttpServletRequest request,HttpServletResponse response) throws IllegalStateException, IOException {
        //创建一个通用的多部分解析器
        CommonsMultipartResolver multipartResolver = new CommonsMultipartResolver(request.getSession().getServletContext());
        //判断 request 是否有文件上传,即多部分请求
        if(multipartResolver.isMultipart(request)){
            //转换成多部分request
            MultipartHttpServletRequest multiRequest = (MultipartHttpServletRequest)request;
            //取得request中的所有文件名
            Iterator<String> iter = multiRequest.getFileNames();
            while(iter.hasNext()){
                //记录上传过程起始时的时间，用来计算上传时间
                int pre = (int) System.currentTimeMillis();
                //取得上传文件
                MultipartFile file = multiRequest.getFile(iter.next());
                if(file != null){
                    //取得当前上传文件的文件名称
                    String myFileName = file.getOriginalFilename();
                    //如果名称不为“”,说明该文件存在，否则说明该文件不存在
                    if(myFileName.trim() !=""){
                        System.out.println(myFileName);
                        //重命名上传后的文件名
                        String fileName = "demoUpload" + file.getOriginalFilename();
                        //定义上传路径
                        String path = "E:/" + fileName;
                        File localFile = new File(path);
                        file.transferTo(localFile);
                    }
                }
                //记录上传该文件后的时间
                int finaltime = (int) System.currentTimeMillis();
                System.out.println(finaltime - pre);
            }

        }
        return "/success";
    }

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<script type="text/javascript" src="${request.contextPath}/assets/common/plug/jquery.min.js"></script>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<script type="text/javascript">
    i = 1;
    j = 1;
    $(document).ready(function(){

        $("#btn_add1").click(function(){
            document.getElementById("newUpload1").innerHTML+='<div id="div_'+i+'"><input name="file" type="file" /><input type="button" value="删除" onclick="del_1('+i+')"/></div>';
              i = i + 1;
        });

        $("#btn_add2").click(function(){
            document.getElementById("newUpload2").innerHTML+='<div id="div_'+j+'"><input name="file_'+j+'" type="file" /><input type="button" value="删除" onclick="del_2('+j+')"/></div>';
              j = j + 1;
        });
    });

    function del_1(o){
     document.getElementById("newUpload1").removeChild(document.getElementById("div_"+o));
    }

    function del_2(o){
         document.getElementById("newUpload2").removeChild(document.getElementById("div_"+o));
    }

</script>
</head>
<body>

     <h1>springMVC字节流输入上传文件</h1>
    <form name="userForm1" action="/springMVC7/file/upload" enctype="multipart/form-data" method="post">
        <div id="newUpload1">
            <input type="file" name="file">
        </div>

        <input type="button" id="btn_add1" value="增加一行" >
        <input type="submit" value="上传" >
    </form>
    <br>
    <br>
    <hr align="left" width="60%" color="#FF0000" size="3">
    <br>
    <br>
     <h1>springMVC包装类上传文件</h1>
    <form name="userForm2" action="/qfshop/upload/upload2" enctype="multipart/form-data" method="post"">
        <div id="newUpload2">
            <input type="file" name="file">
        </div>
        <input type="button" id="btn_add2" value="增加一行" >
        <input type="submit" value="上传" >


    </form>
</body>
</html>


<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"/>

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