webuploader 大文件上传

最近项目遇到大文件上传出现超时情况，Google了下发现百度旗下提供了webuploader（官网：http://fex.baidu.com/webuploader/ ）文件上传插件很不错。采用大文件切割上传的方法。原理就是把大文件切割用多线程上传，然后后台进行文件合并，很方便。下面说实现过程。参考过网上前辈的一些经验再结合自己的实际。下面直接贴代码

1、简单的文件上传

1. 前端页面

    
    
    





    

    
文件上传

2. 后端代码

import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Controller;
import org.springframework.util.MultiValueMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;

import java.io.*;
import java.util.Map;

@Slf4j
@Controller
@RequestMapping(value = "/file")
public class BigFileController {


    @RequestMapping(value = "/upload", method = RequestMethod.GET)
    public String upload(Map model) {
        return "upload";
    }
    @RequestMapping(value = "/uploadSimple", method = RequestMethod.GET)
    public String uploadSimple(Map model) {
        return "uploadSimple";
    }


    @RequestMapping(value = "saveUpload")
    @ResponseBody
    public void upload(MultipartHttpServletRequest request) {

        String guid = request.getParameter("guid");
        MultiValueMap multiFileMap = request.getMultiFileMap();

        MultipartFile multipartFile = multiFileMap.getFirst("file");
        try {
            InputStream in = multipartFile.getInputStream();

            String chunk = request.getParameter("chunk")==null?"0":request.getParameter("chunk");
            String path = "D:\\bigFile" + File.separator + request.getParameter("id")+File.separator+guid;
            File exist = new File(path);
            if (!exist.exists()) {
                exist.mkdirs();
            }
            OutputStream out = new FileOutputStream(path + File.separator + chunk + "_" + request.getParameter("name"));
            byte[] bytes = new byte[1024];
            int len = -1;

            while ((len = in.read(bytes)) != -1) {
                out.write(bytes, 0, len);
            }
            out.close();
            in.close();


        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    /**
     * 文件合并
     * @param guid
     * @param realFileName
     * @param chunks
     * @param folder
     */
    @RequestMapping(value = "merge",method = RequestMethod.POST)
    @ResponseBody
    public void merge(String guid,String realFileName,int chunks,String folder ) {


        String path = "D:\\bigFile"+File.separator+folder+File.separator+guid;
        try {
            FileOutputStream  fileOutputStream = new FileOutputStream(path+File.separator+realFileName);
            byte[] buf = new byte[1024];
            for(int i=0;i

3. 页面效果
   

2、完善的文件上传

2.1. 前端页面

    
    
    





    
    

    

        
选择文件
        开始上传
    

2.2.后端代码

import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Controller;
import org.springframework.util.MultiValueMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;

import java.io.*;
import java.util.Map;

@Slf4j
@Controller
@RequestMapping(value = "/file")
public class BigFileController {


    @RequestMapping(value = "/upload", method = RequestMethod.GET)
    public String upload(Map model) {
        return "upload";
    }
    @RequestMapping(value = "/uploadSimple", method = RequestMethod.GET)
    public String uploadSimple(Map model) {
        return "uploadSimple";
    }


    @RequestMapping(value = "saveUpload")
    @ResponseBody
    public void upload(MultipartHttpServletRequest request) {

        String guid = request.getParameter("guid");
        MultiValueMap multiFileMap = request.getMultiFileMap();

        MultipartFile multipartFile = multiFileMap.getFirst("file");
        try {
            InputStream in = multipartFile.getInputStream();

            String chunk = request.getParameter("chunk")==null?"0":request.getParameter("chunk");
            String path = "D:\\bigFile" + File.separator + request.getParameter("id")+File.separator+guid;
            File exist = new File(path);
            if (!exist.exists()) {
                exist.mkdirs();
            }
            OutputStream out = new FileOutputStream(path + File.separator + chunk + "_" + request.getParameter("name"));
            byte[] bytes = new byte[1024];
            int len = -1;

            while ((len = in.read(bytes)) != -1) {
                out.write(bytes, 0, len);
            }
            out.close();
            in.close();


        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    /**
     * 文件合并
     * @param guid
     * @param realFileName
     * @param chunks
     * @param folder
     */
    @RequestMapping(value = "merge",method = RequestMethod.POST)
    @ResponseBody
    public void merge(String guid,String realFileName,int chunks,String folder ) {


        String path = "D:\\bigFile"+File.separator+folder+File.separator+guid;
        try {
            FileOutputStream  fileOutputStream = new FileOutputStream(path+File.separator+realFileName);
            byte[] buf = new byte[1024];
            for(int i=0;i

2.3.展示效果

注意：如果进度条不显示，很多情况下应该是样式的问题。覆盖下webuploader.css的样式即可。
webuploader.css样式代码如下

.webuploader-container {
	position: relative;
}
.webuploader-element-invisible {
	position: absolute !important;
	clip: rect(1px 1px 1px 1px); /* IE6, IE7 */
	clip: rect(1px,1px,1px,1px);
}
.webuploader-pick {
	position: relative;
/display: inline-block;/
cursor: pointer;
	background: #047a0a;
	padding: 5px 8px;
	color: #fff;
	text-align: center;
	border-radius: 3px;
	overflow: hidden;
}
.webuploader-pick-hover {
	background: #047a0a;
}

.webuploader-pick-disable {
	opacity: 0.6;
	pointer-events:none;
}

/**/
element.style {
	opacity: 0;
	width: 100%;
	height: 100%;
	display: block;
	cursor: pointer;
	background: rgb(255, 255, 255);
}
picker {
	display: inline-block;
	line-height: 1.428571429;
	position: relative;
	top: 12px;
}
.wu-example {
	position: relative;
	padding: 45px 15px 15px;
	margin: 15px 0;
	background-color: #fafafa;
	box-shadow: inset 0 3px 6px rgba(0, 0, 0, .05);
	border-color: #e5e5e5 #eee #eee;
	border-style: solid;
	border-width: 1px 0;
}
.wu-example:after {
	content: "示例";
	position: absolute;
	top: 15px;
	left: 15px;
	font-size: 12px;
	font-weight: bold;
	color: #bbb;
	text-transform: uppercase;
	letter-spacing: 1px;
}
.uploader-list {
	width: 100%;
	overflow: hidden;
}
.file-item {
	float: left;
	position: relative;
	margin: 0 20px 20px 0;
	padding: 4px;
}
.file-item .error {
	position: absolute;
	top: 4px;
	left: 4px;
	right: 4px;
	background: red;
	color: white;
	text-align: center;
	height: 20px;
	font-size: 14px;
	line-height: 23px;
}
.file-item .info {
	position: absolute;
	left: 4px;
	bottom: 4px;
	right: 4px;
	height: 20px;
	line-height: 20px;
	text-indent: 5px;
	background: rgba(0, 0, 0, 0.6);
	color: white;
	overflow: hidden;
	white-space: nowrap;
	text-overflow : ellipsis;
	font-size: 12px;
	z-index: 10;
}
.upload-state-done:after {
	content:"示例";
	font-family: FontAwesome;
	font-style: normal;
	font-weight: normal;
	line-height: 1;
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
	font-size: 32px;
	position: absolute;
	bottom: 0;
	right: 4px;
	color: #4cae4c;
	z-index: 99;
}
.file-item .progress {
	position: absolute;
	right: 4px;
	bottom: 4px;
	height: 3px;
	left: 4px;
	height: 4px;
	overflow: hidden;
	z-index: 15;
	margin:0;
	padding: 0;
	border-radius: 0;
	background: transparent;
}

.file-item .progress span {
	display: block;
	overflow: hidden;
	width: 0;
	height: 100%;
	background: #d14 url(progress.png) repeat-x;
	-webit-transition: width 200ms linear;
	-moz-transition: width 200ms linear;
	-o-transition: width 200ms linear;
	-ms-transition: width 200ms linear;
	transition: width 200ms linear;
	-webkit-animation: progressmove 2s linear infinite;
	-moz-animation: progressmove 2s linear infinite;
	-o-animation: progressmove 2s linear infinite;
	-ms-animation: progressmove 2s linear infinite;
	animation: progressmove 2s linear infinite;
	-webkit-transform: translateZ(0);
}
@-webkit-keyframes progressmove {
	0% {
		background-position: 0 0;
	}
	100% {
		background-position: 17px 0;
	}
}
@-moz-keyframes progressmove {
	0% {
		background-position: 0 0;
	}
	100% {
		background-position: 17px 0;
	}
}
@keyframes progressmove {
	0% {
		background-position: 0 0;
	}
	100% {
		background-position: 17px 0;
	}
}
.progress {
	height: 20px;
	margin-bottom: 20px;
	overflow: hidden;
	background-color: #f5f5f5;
	border-radius: 4px;
	-webkit-box-shadow: inset 0 1px 2px rgba(0,0,0,0.1);
	box-shadow: inset 0 1px 2px rgba(0,0,0,0.1);
}
.progress.active .progress-bar {
	-webkit-animation: progress-bar-stripes 2s linear infinite;
	animation: progress-bar-stripes 2s linear infinite;
}

.progress-striped .progress-bar {
	background-image: linear-gradient(45deg,rgba(255,255,255,0.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,0.15) 50%,rgba(255,255,255,0.15) 75%,transparent 75%,transparent);
	background-size: 40px 40px;
}
.progress-bar {
	background-image: -webkit-linear-gradient(top,#428bca 0,#3071a9 100%);
	background-image: linear-gradient(to bottom,#428bca 0,#3071a9 100%);
	background-repeat: repeat-x;
	filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ff428bca',endColorstr='#ff3071a9',GradientType=0);
}
.progress-bar {
	float: left;
	height: 100%;
	font-size: 12px;
	line-height: 20px;
	color: #fff;
	text-align: center;
	background-color: #428bca;
	box-shadow: inset 0 -1px 0 rgba(0,0,0,0.15);
	transition: width .6s ease;
}
.btn-default {
	text-shadow: 0 1px 0 #fff;
	background-image: -webkit-linear-gradient(top,#fff 0,#e0e0e0 100%);
	background-image: linear-gradient(to bottom,#fff 0,#e0e0e0 100%);
	background-repeat: repeat-x;
}
.btn {
	display: inline-block;
	padding: 6px 12px;
	margin-bottom: 0;
	font-size: 14px;
	font-weight: normal;
	line-height: 1.428571429;
	text-align: center;
	white-space: nowrap;
	vertical-align: middle;
	cursor: pointer;
	border: 1px solid transparent;
	border-radius: 4px;
	user-select: none;
}