springmvc批量保存及上传文件

0、jar包（链接：https://pan.baidu.com/s/1MdAHnKoc5-r3jY58Vwz-1Q 密码：kdvh）
commons-fileupload-1.3.1.jar
commons-io-2.4.jar
等其他springmvc需要的jar
1、js（链接：https://pan.baidu.com/s/1PraViPr8Y_SdNI0bUYlitA 密码：lp5y）
jquery-1.11.1.min.js
jquery.form.js
2、上传的工具包

package com.ws.util;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;

import org.apache.commons.io.FileUtils;
import org.springframework.web.multipart.MultipartFile;

public class FileUpload {

    /**
     * @param file          //文件对象
     * @param filePath      //上传路径
     * @param fileName      //文件名
     * @return  文件名
     */
    public static String fileUp(MultipartFile file, String filePath, String fileName){
        String extName = ""; // 扩展名格式：
        try {
            if (file.getOriginalFilename().lastIndexOf(".") >= 0){
                extName = file.getOriginalFilename().substring(file.getOriginalFilename().lastIndexOf("."));
            }
            copyFile(file.getInputStream(), filePath, fileName+extName).replaceAll("-", "");
        } catch (IOException e) {
            System.out.println(e);
        }
        return fileName+extName;
    }

    /**
     * 写文件到当前目录的upload目录中
     * 没用到这个...
     * @param in
     * @param fileName
     * @throws IOException
     */
    private static String copyFile(InputStream in, String dir, String realName)
            throws IOException {
        File file = new File(dir, realName);
        if (!file.exists()) {
            if (!file.getParentFile().exists()) {
                file.getParentFile().mkdirs();
            }
            file.createNewFile();
        }
        FileUtils.copyInputStreamToFile(in, file);
        return realName;
    }
}

3、控制层

package com.ws;

import java.io.PrintWriter;
import java.util.Date;

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.servlet.ModelAndView;

import com.ws.util.FileUpload;

@Controller
public class TestController {

    @RequestMapping(value = "/toAdd")
    public ModelAndView toAdd() {
        ModelAndView mv = new ModelAndView();
        mv.setViewName("test/edit");
        return mv;
    }

    @RequestMapping(value = "/save")
    public ModelAndView save(HttpServletRequest request) {
        ModelAndView mv = new ModelAndView();
        Integer zj_count = Integer.parseInt(request.getParameter("zj_count"));
        for (int i = 1; i <= zj_count; i++) {
            System.out.println(request.getParameter("zj" + i));
            // 获取每个章节有几个课时
            Integer zj_ks_count = Integer.parseInt(request.getParameter("ks" + i + "_count"));
            for (int j = 1; j <= zj_ks_count; j++) {
                System.out.println("\t" + request.getParameter("zj" + i + "_ks" + j) + "\t" + request.getParameter("file_path_zj" + i + "_ks" + j));
            }
        }
        mv.setViewName("redirect:toAdd.do");
        return mv;
    }

    // 上传文件的目录（自己改啊！！）
    static final String filePath = "G:\\shenmeshenme\\apache-tomcat-7.0.26\\webapps\\springMVCFreeMarker\\static\\uploadFiles";

    /**
     * 异步上传文件
     * @param file
     * @param request
     * @param out
     */
    @RequestMapping(value = "/uploadFile")
    public void uploadFile(@RequestParam MultipartFile file, HttpServletRequest request, PrintWriter out){
        try {
            String newFileName = FileUpload.fileUp(file, filePath, new Date().getTime()+"");
            out.print(newFileName);
        } catch (Exception e) {
            e.printStackTrace();
            out.print("error");
        } finally {
            out.close();
            out.flush();
        }
    }
}

4、jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
    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>新增</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">
    -->
    <style type="text/css">
        .zj_div{
            background: #ddf;
        }
        .ks_div{
            background: #dff;
            margin-left: 50px;
        }
        input[readonly='readonly']{
            cursor: pointer;
        }
    </style>
</head>

<body>
    <form action="save" method="post">
        <input type="button" value="添加章节" onclick="addZj()">
        <div id="all">
            <div id="div_zj1">
                <div class="zj_div">
                    <input name="zj1" value="章节1">
                    <input type="button" value="添加课时" onclick="addKs(1)">
                    <!-- 这个章节有几个课时 -->
                    <input type="hidden" name="ks1_count" id="ks1_count" value="1">
                </div>
                <div class="ks_div">
                    <input name="zj1_ks1" value="章节1的课时1">
                    <input type="text" name="file_path_zj1_ks1" id="file_path_zj1_ks1" onclick="chooseFile('file_path_zj1_ks1')" readonly="readonly" placeholder="点我选择文件">
                    <br>
                </div>
            </div>
        </div>
        <!-- 共有几个章节 -->
        <input type="hidden" value="1" name="zj_count" id="zj_count">
        <br>
        <input type="button" value="保存" onclick="save()">
    </form>
    <form action="uploadFile.do" id="uploadFileForm" method="post" enctype="multipart/form-data" style="display: none;">
        <input type="file" name="file" id="file" onchange="fileChange()">
    </form>
    <script type="text/javascript" src="static/js/jquery-1.11.1.min.js"></script>
    <script type="text/javascript" src="static/js/jquery.form.js"></script>
    <script type="text/javascript">
        // 章节的序号
        var zjXuHao = 1;
        // 添加章节
        function addZj(){
            zjXuHao++;
            var htmls ="<div id=\"div_zj"+zjXuHao+"\">"+ 
                            "<div class=\"zj_div\">"+
                                "<input name=\"zj"+zjXuHao+"\" value=\"章节"+zjXuHao+"\">"+
                                "<input type=\"button\" value=\"添加课时\" onclick=\"addKs("+zjXuHao+")\">"+
                                "<input type=\"hidden\" name=\"ks"+zjXuHao+"_count\" id=\"ks"+zjXuHao+"_count\" value=\"0\">"+
                            "</div>"+
                        "</div>";
            $("#all").append(htmls);
            // 共几个章节
            $("#zj_count").val(zjXuHao);
        }

        // 添加课时
        var ksXuHao = 1;
        function addKs(i){
            var ksCount = parseInt($("#ks"+i+"_count").val())+1;
            var htmls = "<div class=\"ks_div\">"+
                            "<input name=\"zj"+i+"_ks"+ksCount+"\" value=\"章节"+i+"的课时"+ksCount+"\">\n"+
                            "<input type=\"text\" name=\"file_path_zj"+i+"_ks"+ksCount+"\" id=\"file_path_zj"+i+"_ks"+ksCount+"\" onclick=\"chooseFile('file_path_zj"+i+"_ks"+ksCount+"')\" readonly=\"readonly\"  placeholder=\"点我选择文件\">"+
                            "<br>"+
                        "</div>";
            $("#div_zj"+i).append(htmls);
            $("#ks"+i+"_count").val(ksCount);
        }

        function save(){
            $("form")[0].submit();
        }
        //var zjArr = [1];
        // zjArr.push();//给数组里面添加元素

        // 选择文件
        function chooseFile(filePathId){
            $("#file").attr("filepathid", filePathId);
            $("#file").click();
        }

        var fileMaxSize = 5*1024*1024;

        // 选择文件后，准备上传
        function fileChange(){
            var fileSize = 0;
            var ua = window.navigator.userAgent; 
            if (ua.indexOf("MSIE")>=1){//ie旧版浏览器
                var fileobject = new ActiveXObject ("Scripting.FileSystemObject");//获取上传文件的对象
                var file = fileobject.GetFile(document.getElementById("file").value);//获取上传的文件
                fileSize = file.Size;
            } else {//其它浏览器
                fileSize = $("#file")[0].files[0].size;
            }
            if (fileSize <= 0) {
                alert("文件错误~");
                $("#file").removeAttr("filepathid");
                return;
            }
            if (fileSize > fileMaxSize) {
                alert("文件不能超过5M~");
                $("#file").removeAttr("filepathid");
                return;
            }
            var filePathId = $("#file").attr("filepathid");
            if (filePathId != null && filePathId != '') {
                uploadPic(filePathId);
            }
        }

        // 上传文件
        function uploadPic(id) {
            // 上传设置  
            var options = {
                // 规定把请求发送到那个URL  
                url : "uploadFile.do",
                // 请求方式  
                type : "post",
                // 服务器响应的数据类型  
                dataType : "text",
                // 请求成功时执行的回调函数  
                success : function(data, status, xhr) {
                    // 图片显示地址  
                    if (data != 'error' && data != null && data != '') {
                        $("#" + id).val(data);
                    } else {
                        alert("上传失败，请重试！");
                    }
                }
            };
            $("#uploadFileForm").ajaxSubmit(options);
        }
    </script>
</body>
</html>

5、spring-mvc.xml配置

<!-- 设置上传文件最大值   100M=100*1024*1024(B)=1048576 bytes -->    
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">    
    <property name="maxUploadSize" value="104857600" />    
</bean>