环境：
tomcat5.6
commmons-fileupload-1.3.jar
commmons-io-2.4.jar
JSP
编码：UTF-8
临时文件夹：fileupload/tmp相对于网站根目录
上传文件保存位置：fileupload
Traditional API上传方式
//fileload01.htm
复制代码 代码如下:
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<html>
<body>
<form method="POST" enctype="multipart/form-data" action="traditionalapi.jsp">
File to upload: <input type="file" name="file" size="40"><br/>
<input type="submit" value="Press"> to upload the file!
</form>
</body>
</html>
//traditionalapi.jsp
复制代码 代码如下:
<%@page contentType="text/html;charset=UTF-8" pageEncoding="UTF-8" language="java"%>
<%@page import="java.io.File"%>
<%@page import="java.util.List"%>
<%@page import="org.apache.commons.fileupload.*"%>
<%@page import="org.apache.commons.fileupload.disk.DiskFileItemFactory"%>
<%@page import="org.apache.commons.fileupload.servlet.ServletFileUpload"%>
<%
request.setCharacterEncoding("UTF-8");
// file less than 10kb will be store in memory, otherwise in file system.
final int threshold = 10240;
final File tmpDir = new File(getServletContext().getRealPath("/") + "fileupload" + File.separator + "tmp");
final int maxRequestSize = 1024 * 1024 * 4; // 4MB
// Check that we have a file upload request
if(ServletFileUpload.isMultipartContent(request))
{
// Create a factory for disk-based file items.
FileItemFactory factory = new DiskFileItemFactory(threshold, tmpDir);
// Create a new file upload handler
ServletFileUpload upload = new ServletFileUpload(factory);
// Set overall request size constraint.
upload.setSizeMax(maxRequestSize);
List<FileItem> items = upload.parseRequest(request); // FileUploadException
for(FileItem item : items)
{
if(item.isFormField()) //regular form field
{
String name = item.getFieldName();
String value = item.getString();
%>
<h1><%=name%> --> <%=value%></h1>
<%
}
else
{ //file upload
String fieldName = item.getFieldName();
String fileName = item.getName();
File uploadedFile = new File(getServletContext().getRealPath("/") +
"fileupload" + File.separator + fieldName + "_" + fileName);
item.write(uploadedFile);
%>
<h1>upload file <%=uploadedFile.getName()%> done!</h1>
<%
}
}
}
%>
Streaming API上传方式
//fileupload02.htm
复制代码 代码如下:
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<html>
<body>
<form method="POST" enctype="multipart/form-data" action="streamingapi.jsp">
File to upload: <input type="file" name="file" size="40"><br/>
<input type="submit" value="Press"> to upload the file!
</form>
</body>
</html>
//streamingapi.jsp
复制代码 代码如下:
<%@page contentType="text/html;charset=UTF-8" pageEncoding="UTF-8" language="java"%>
<%@page import="java.io.*"%>
<%@page import="java.util.List"%>
<%@page import="org.apache.commons.fileupload.*"%>
<%@page import="org.apache.commons.fileupload.util.Streams"%>
<%@page import="org.apache.commons.fileupload.servlet.ServletFileUpload"%>
<%
request.setCharacterEncoding("UTF-8");
// Check that we have a file upload request
if(ServletFileUpload.isMultipartContent(request))
{
// Create a new file upload handler
ServletFileUpload upload = new ServletFileUpload();
// Parse the request
FileItemIterator iter = upload.getItemIterator(request);
while(iter.hasNext())
{
FileItemStream item = iter.next();
String fieldName = item.getFieldName();
InputStream is = item.openStream();
if(item.isFormField()) //regular form field
{
%>
<!-- read a FileItemStream's content into a string. -->
<h1><%=fieldName%> --> <%=Streams.asString(is)%></h1>
<%
}
else
{ //file upload
String fileName = item.getName();
File uploadedFile = new File(getServletContext().getRealPath("/") +
"fileupload" + File.separator + fieldName + "_" + fileName);
OutputStream os = new FileOutputStream(uploadedFile);
// write file to disk and close outputstream.
Streams.copy(is, os, true);
%>
<h1>upload file <%=uploadedFile.getName()%> done!</h1>
<%
}
}
}
%>
Traditional API vs Streaming API
Streaming API上传速度相对较快。因为它是利用内存保存上传的文件，节省了传统API将文件写入临时文件带来的开销。
可参考：
http://stackoverflow.com/questions/11620432/apache-commons-fileupload-streaming-api
This page describes the traditional API of the commons fileupload library. The traditional API is a convenient approach. However, for ultimate performance, you might prefer the faster Streaming API.
http://commons.apache.org/proper/commons-fileupload/using.html
tomcat5.6
commmons-fileupload-1.3.jar
commmons-io-2.4.jar
JSP
编码：UTF-8
临时文件夹：fileupload/tmp相对于网站根目录
上传文件保存位置：fileupload
Traditional API上传方式
//fileload01.htm
复制代码 代码如下:
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<html>
<body>
<form method="POST" enctype="multipart/form-data" action="traditionalapi.jsp">
File to upload: <input type="file" name="file" size="40"><br/>
<input type="submit" value="Press"> to upload the file!
</form>
</body>
</html>
//traditionalapi.jsp
复制代码 代码如下:
<%@page contentType="text/html;charset=UTF-8" pageEncoding="UTF-8" language="java"%>
<%@page import="java.io.File"%>
<%@page import="java.util.List"%>
<%@page import="org.apache.commons.fileupload.*"%>
<%@page import="org.apache.commons.fileupload.disk.DiskFileItemFactory"%>
<%@page import="org.apache.commons.fileupload.servlet.ServletFileUpload"%>
<%
request.setCharacterEncoding("UTF-8");
// file less than 10kb will be store in memory, otherwise in file system.
final int threshold = 10240;
final File tmpDir = new File(getServletContext().getRealPath("/") + "fileupload" + File.separator + "tmp");
final int maxRequestSize = 1024 * 1024 * 4; // 4MB
// Check that we have a file upload request
if(ServletFileUpload.isMultipartContent(request))
{
// Create a factory for disk-based file items.
FileItemFactory factory = new DiskFileItemFactory(threshold, tmpDir);
// Create a new file upload handler
ServletFileUpload upload = new ServletFileUpload(factory);
// Set overall request size constraint.
upload.setSizeMax(maxRequestSize);
List<FileItem> items = upload.parseRequest(request); // FileUploadException
for(FileItem item : items)
{
if(item.isFormField()) //regular form field
{
String name = item.getFieldName();
String value = item.getString();
%>
<h1><%=name%> --> <%=value%></h1>
<%
}
else
{ //file upload
String fieldName = item.getFieldName();
String fileName = item.getName();
File uploadedFile = new File(getServletContext().getRealPath("/") +
"fileupload" + File.separator + fieldName + "_" + fileName);
item.write(uploadedFile);
%>
<h1>upload file <%=uploadedFile.getName()%> done!</h1>
<%
}
}
}
%>
Streaming API上传方式
//fileupload02.htm
复制代码 代码如下:
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<html>
<body>
<form method="POST" enctype="multipart/form-data" action="streamingapi.jsp">
File to upload: <input type="file" name="file" size="40"><br/>
<input type="submit" value="Press"> to upload the file!
</form>
</body>
</html>
//streamingapi.jsp
复制代码 代码如下:
<%@page contentType="text/html;charset=UTF-8" pageEncoding="UTF-8" language="java"%>
<%@page import="java.io.*"%>
<%@page import="java.util.List"%>
<%@page import="org.apache.commons.fileupload.*"%>
<%@page import="org.apache.commons.fileupload.util.Streams"%>
<%@page import="org.apache.commons.fileupload.servlet.ServletFileUpload"%>
<%
request.setCharacterEncoding("UTF-8");
// Check that we have a file upload request
if(ServletFileUpload.isMultipartContent(request))
{
// Create a new file upload handler
ServletFileUpload upload = new ServletFileUpload();
// Parse the request
FileItemIterator iter = upload.getItemIterator(request);
while(iter.hasNext())
{
FileItemStream item = iter.next();
String fieldName = item.getFieldName();
InputStream is = item.openStream();
if(item.isFormField()) //regular form field
{
%>
<!-- read a FileItemStream's content into a string. -->
<h1><%=fieldName%> --> <%=Streams.asString(is)%></h1>
<%
}
else
{ //file upload
String fileName = item.getName();
File uploadedFile = new File(getServletContext().getRealPath("/") +
"fileupload" + File.separator + fieldName + "_" + fileName);
OutputStream os = new FileOutputStream(uploadedFile);
// write file to disk and close outputstream.
Streams.copy(is, os, true);
%>
<h1>upload file <%=uploadedFile.getName()%> done!</h1>
<%
}
}
}
%>
Traditional API vs Streaming API
Streaming API上传速度相对较快。因为它是利用内存保存上传的文件，节省了传统API将文件写入临时文件带来的开销。
可参考：
http://stackoverflow.com/questions/11620432/apache-commons-fileupload-streaming-api
This page describes the traditional API of the commons fileupload library. The traditional API is a convenient approach. However, for ultimate performance, you might prefer the faster Streaming API.
http://commons.apache.org/proper/commons-fileupload/using.html
标签：
apache,upload,上传
免责声明：本站文章均来自网站采集或用户投稿，网站不提供任何软件下载或自行开发的软件！
如有用户或公司发现本站内容信息存在侵权行为，请邮件告知！ 858582#qq.com
暂无“Apache FileUpload的两种上传方式介绍及应用”评论...
《魔兽世界》大逃杀！60人新游玩模式《强袭风暴》3月21日上线
暴雪近日发布了《魔兽世界》10.2.6 更新内容，新游玩模式《强袭风暴》即将于3月21 日在亚服上线，届时玩家将前往阿拉希高地展开一场 60 人大逃杀对战。
艾泽拉斯的冒险者已经征服了艾泽拉斯的大地及遥远的彼岸。他们在对抗世界上最致命的敌人时展现出过人的手腕，并且成功阻止终结宇宙等级的威胁。当他们在为即将于《魔兽世界》资料片《地心之战》中来袭的萨拉塔斯势力做战斗准备时，他们还需要在熟悉的阿拉希高地面对一个全新的敌人──那就是彼此。在《巨龙崛起》10.2.6 更新的《强袭风暴》中，玩家将会进入一个全新的海盗主题大逃杀式限时活动，其中包含极高的风险和史诗级的奖励。
《强袭风暴》不是普通的战场，作为一个独立于主游戏之外的活动，玩家可以用大逃杀的风格来体验《魔兽世界》，不分职业、不分装备（除了你在赛局中捡到的），光是技巧和战略的强弱之分就能决定出谁才是能坚持到最后的赢家。本次活动将会开放单人和双人模式，玩家在加入海盗主题的预赛大厅区域前，可以从强袭风暴角色画面新增好友。游玩游戏将可以累计名望轨迹，《巨龙崛起》和《魔兽世界：巫妖王之怒 经典版》的玩家都可以获得奖励。
更新动态
2024年12月29日
2024年12月29日
- 小骆驼-《草原狼2(蓝光CD)》[原抓WAV+CUE]
- 群星《欢迎来到我身边 电影原声专辑》[320K/MP3][105.02MB]
- 群星《欢迎来到我身边 电影原声专辑》[FLAC/分轨][480.9MB]
- 雷婷《梦里蓝天HQⅡ》 2023头版限量编号低速原抓[WAV+CUE][463M]
- 群星《2024好听新歌42》AI调整音效【WAV分轨】
- 王思雨-《思念陪着鸿雁飞》WAV
- 王思雨《喜马拉雅HQ》头版限量编号[WAV+CUE]
- 李健《无时无刻》[WAV+CUE][590M]
- 陈奕迅《酝酿》[WAV分轨][502M]
- 卓依婷《化蝶》2CD[WAV+CUE][1.1G]
- 群星《吉他王(黑胶CD)》[WAV+CUE]
- 齐秦《穿乐(穿越)》[WAV+CUE]
- 发烧珍品《数位CD音响测试-动向效果（九）》【WAV+CUE】
- 邝美云《邝美云精装歌集》[DSF][1.6G]
- 吕方《爱一回伤一回》[WAV+CUE][454M]