最近一个项目需要使用一个上传控件进行多图片上传,给用户更好的体验,找到了plupload,用了一下感觉还是不错的,
1.从官网上 可以获得例子 ,我集成到了jsp,如下:
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<link media="screen" href="css/jquery-ui.min.css" rel="stylesheet" type="text/css">
<link media="screen" href="css/jquery.ui.plupload.css" rel="stylesheet" type="text/css">
<script src="js/jquery.js" type="text/javascript"></script>
<script charset="UTF-8" src="js/jquery-ui.min.js" type="text/javascript"></script>
<script charset="UTF-8" src="js/plupload.full.min.js" type="text/javascript"></script>
<script charset="UTF-8" src="js/jquery.ui.plupload.min.js" type="text/javascript"></script>
<script src="js/zh_CN.js" type="text/javascript"></script>
<script type="text/javascript">
$(function() {
$("#uploader").plupload({
// General settings
runtimes : 'html5,flash,silverlight,html4,html',
url : "file/upload",
// Maximum file size
max_file_size : '20mb',
chunk_size: '10mb',
// Resize images on clientside if we can
resize : {
width : 1000,
height : 1000,
quality : 90,
crop: true // crop to exact dimensions
},
// Specify what files to browse for
filters : [
{title : "Image files", extensions : "jpg,gif,png"},
{title : "Zip files", extensions : "zip,avi"}
],
// Rename files by clicking on their titles
rename: true,
// Sort files
sortable: true,
// Enable ability to drag'n'drop files onto the widget (currently only HTML5 supports that)
dragdrop: true,
// Views to activate
views: {
list: true,
thumbs: true, // Show thumbs
active: 'thumbs'
},
// Flash settings
flash_swf_url : 'js/Moxie.swf',
// Silverlight settings
silverlight_xap_url : 'js/Moxie.xap'
})
});
</script>
</head>
<body>
<div id="uploader">
</div>
</body>
</html>
2.导入相应的js文件,与css美化 ,结构如下:
3.到了这一步,基本上这个控件的样子出来了,下面是后台获取上传文件源码 (ps:本人用的springmvc) 上传文件用的 spring写好的 MultipartHttpServletRequest 这个类,首先,spring-mvc配置 MultipartHttpServletRequest 的视图配置
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<property name="maxUploadSize" value="104857600"/>
<property name="maxInMemorySize" value="4096"/>
</bean>
4.控制器实现上传
package com.springfreemark.web.controller;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.springframework.stereotype.Component;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;
@Component
@RequestMapping("/file/")
public class UploadController extends BaseController {
String UPLOADDIR="F:/upload";
@RequestMapping("upload")
public void exec(HttpServletRequest request,HttpServletResponse response){
MultipartHttpServletRequest multiReq = (MultipartHttpServletRequest) request;
HashMap<String, MultipartFile> hashMap=(HashMap<String, MultipartFile>) multiReq.getFileMap();
InputStream inputStream=null;
FileOutputStream outputStream=null;
try {
for (Entry<String,MultipartFile> entry : hashMap.entrySet()) {
MultipartFile file = entry.getValue();
inputStream = file.getInputStream();
File fileDir= new File(UPLOADDIR);
if(!fileDir.exists()||!fileDir.isDirectory()){
fileDir.mkdir();
}
File uploadFile= new File(UPLOADDIR+"/"+System.currentTimeMillis()+file.getOriginalFilename());
if(uploadFile.exists()){
uploadFile.delete();
}
uploadFile.createNewFile();
outputStream =new FileOutputStream(uploadFile);
byte[] bs = new byte[1024];
int len=0;
while ((len=inputStream.read(bs))>0) {
outputStream.write(bs);
}
System.out.println(file.getOriginalFilename()+"上传成功");
}
response.getWriter().print("全部上传成功");
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}finally{
try {
if(inputStream!=null){
inputStream.close();
}
if(outputStream!=null){
outputStream.close();
}
} catch (Exception e) {
// TODO: handle exception
}
}
}
}
附上: