下载地址：http://plugins.jquery.com/blueimp-file-upload/
文档地址：https://github.com/blueimp/jQuery-File-Upload/wiki
本文只是一个demo,实现功能也很简单：点击一个上传按钮，用户选择图片，图片Ajax上传到后台存储到硬盘，返回一个连接，页面上显示用户上传的图片。
（jquery-file-upload多文件上传可以做的非常漂亮，我这里有点大材小用了）
注：demo 页面为jsp，服务端为Java springMVC。
页面代码：
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/html">
<head>
<meta charset="UTF-8">
<title>file upload demo</title>
<link rel="stylesheet" href="<c:url value =‘/resource/themes/bootstrap/css/bootstrap.min.css‘/>">
<link rel="stylesheet" href="<c:url value =‘/resource/js/jQuery-File-Upload/css/jquery.fileupload.css‘/>">
<script src="<c:url value =‘/resource/js/jquery-1.9.1.min.js‘/>"></script>
<script src=" <c:url value =‘/resource/js/jQuery-File-Upload/js/vendor/jquery.ui.widget.js‘/>"></script>
<script src=" <c:url value =‘/resource/js/jQuery-File-Upload/js/jquery.iframe-transport.js‘/>"></script>
<script src=" <c:url value =‘/resource/js/jQuery-File-Upload/js/jquery.fileupload.js‘/>"></script>
<script src="<c:url value =‘/resource/themes/bootstrap/js/bootstrap.min.js‘/>"></script>
<script type="text/javascript">
$(function () {
var url = "/portal/upload/uploadImg.do";
$(‘#fileupload‘).fileupload({
url: url,
dataType: ‘text‘,
done: function (e, data) {
alert(1);
console.dir(data);
$(".imgView img").attr(‘src‘,‘${contextPath}‘+data.result);
$("#progress").hide();
$(".imgView").show();
},
progressall: function (e, data) {
console.dir(data);
var progress = parseInt(data.loaded / data.total * 100, 10);
$(‘#progress .progress-bar‘).css(
‘width‘,
progress + ‘%‘
);
}
});
});
</script>
</head>
<body>
<span class="btn btn-success fileinput-button">
<i class="glyphicon glyphicon-plus"></i>
<span>Select file.</span>
<!-- The file input field used as target for the file upload widget -->
<input id="fileupload" type="file" name="imgFile"/>
</span>
<br>
<br>
<!-- The global progress bar -->
<div id="progress" class="progress">
<div class="progress-bar progress-bar-success"></div>
</div>
<div class="imgView" hidden="hidden">
<img src="">
</div>
</body>
</html>
如果要自己写css
那么只需以下四个js:jquery.min.js、jquery.ui.widget.js、jquery.iframe-transport.js 、jquery.fileupload.js
配置：对id为fileupload 的file input 进行fileupload实例化，url即为图片要上传到服务端的后台链接，也可以通过html5的属性 data-url 直接在input中给，input的name要给，貌似不能再配置中配，这个很不方便。progressall是配置进度条的，done是上传到后台返回后的事件。
Java代码：
import java.io.IOException;
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 com.isoftstone.veco.common.base.controller.BaseController;
import com.isoftstone.veco.common.upload.FileUploadHandler;
@RequestMapping("/upload")
@Controller
public class UploadController extends BaseController
{
@RequestMapping("/uploadImg.do")
public @ResponseBody
String uploadMaterialImg(@RequestParam("imgFile") MultipartFile multipartFile)
{
String resp = null;
if (multipartFile != null)
{
try
{
byte[] file = multipartFile.getBytes();
String dir = "/test";
String imgId = FileUploadHandler.uploadImg(file, dir);
resp = FileUploadHandler.UPLOAD_CONFIG.getImgVirtualDir() + "?" + FileUploadHandler.UPLOAD_CONFIG.getDownloadParamName() + "="
+ imgId;
} catch (IOException e)
{
e.printStackTrace();
}
}
return resp;
}
}
try中间的上传逻辑就不详细写了，controller这里写的有点挫，应该返回一个json格式的，判断上传是否成功，给用户反馈的，不过我这里只是一个demo，哈哈
jquery-file-upload demo,布布扣,bubuko.com
时间： 2024-10-25 22:23:35