jspSmartUpload实现图片的批量上传
浏览数：50 /
时间：2015年06月09日
batchUpload.html
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>批量上传</title>
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="this is my page">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<style type="text/css">
.tableStyle {
border: 1px solid blue;
padding: 1px;
height: 45px;
vertical-align: middle;
}
.tableStyle .tdStyle { /* 派生选择器+类选择器 */
border: 1px solid green;
}
</style>
</head>
<body>
<div>
<form action="doBatchUpload.jsp" method="post" enctype="multipart/form-data"
name="form1">
<table class="tableStyle" align="center" border="1">
<tr>
<td class="tdStyle">
请选择上传文件
<input type="file" name="file1" />
</td>
</tr>
<tr>
<td class="tdStyle">
请选择上传文件
<input type="file" name="file2" />
</td>
</tr>
<tr>
<td class="tdStyle">
请选择上传文件
<input type="file" name="file3" />
</td>
</tr>
<tr>
<td class="tdStyle">
<input type="submit" name="submit" value="上传" />
</td>
</tr>
</table>
</form>
</div>
</body>
</html>
doBatchUpload1.jsp
<%@ page language="java" import="java.util.*,com.jspsmart.upload.*"
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>处理批上传页面</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">
<%
//这个处理文件没有对图片进行压缩
SmartUpload smartUpload = new SmartUpload();
smartUpload.initialize(pageContext);
int count = 0;
String ext = null;
float file_size = 0f;
long file_size_max = 4000000;
String url = "uploadfile/images/";//应保证在根目录中有此目录的存在
out.println("文件的个数是：" + smartUpload.getFiles().getCount());
for (int i = 0; i < smartUpload.getFiles().getCount(); i++) {
com.jspsmart.upload.File myFile = smartUpload.getFiles().getFile(i);
//String fileName = myFile.getFileName(); //获取源文件名
//count = smartUpload.save();
file_size = myFile.getSize();
smartUpload.upload("utf-8");//指定编码的upload()方法
if (myFile.isMissing()) {
%>
<script type="text/javascript">
window.alert("请先选择要上传的文件");
window.location = " batchUpload.html";
</script>
<%
} else {
String myFileName = myFile.getFileName();//取得上载的文件的文件名
ext = myFile.getFileExt();//取得后缀名
if (!(ext.length() > 0)) {
out.println("**************myFileName的文件名是：" + myFileName);
}
String saveUrl = "";//文件保存路径
if (file_size < file_size_max) {
//更改文件名，取得当前上传时间的毫秒数值
Calendar calendar = Calendar.getInstance();
String fileName = String.valueOf(calendar.getTimeInMillis());//设置新的文件名
saveUrl += fileName + "." + ext;
myFile.saveAs(saveUrl, smartUpload.SAVE_PHYSICAL);
out.println(saveUrl);
out.println(file_size);
}
}
}
%>
</head>
<body>
</body>
</html>doBatchUpload2.jsp
<%@ page language="java" import="java.util.*,java.io.*"
pageEncoding="utf-8"%>
<%@ page import="com.jspsmart.upload.SmartUpload"%>
<%@ page import="javax.servlet.jsp.tagext.TryCatchFinally"%>
<%@ page import="javax.imageio.ImageIO"%>
<%@ page import="java.awt.image.BufferedImage"%>
<%@ page import="com.sun.image.codec.jpeg.JPEGImageEncoder"%>
<%@ page import="com.sun.image.codec.jpeg.JPEGCodec"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort()
+ path + "/";
%>
<%
//这个处理文件实现了对图片的压缩
SmartUpload mySmartUpload = new SmartUpload();
long file_size_max = 4000000;
String fileName2;//文件名
String ext;//文件扩展名
String testVar;
String url = "upload/images/";//应保证在根目录中有此目录的存在
//初始化
mySmartUpload.initialize(pageContext);
//只允许上载此类文件
try {
//支持上载文件的后缀名
//mySmartUpload.setAllowedFilesList("jpg,gif");
//mySmartUpload.setAllowedFilesList("jpg,gif,jpeg,png");
//不支持制定的后缀
mySmartUpload.setDeniedFilesList("exe");
//上载文件
// mySmartUpload.upload();//不指定编码的upload()方法
mySmartUpload.upload("utf-8");//指定编码的upload()方法
} catch (Exception e) {
out.print("<script type=\"text/javascript\">");
out.print("window.alert(\"只允许上传.jpg和.gif类型图片文件\");");
out.print("window.location=\"upload.html;\"");
out.print("</script>");
}
try {
for (int i = 0; i < mySmartUpload.getFiles().getCount(); i++) {
com.jspsmart.upload.File myFile = mySmartUpload.getFiles().getFile(i);
if (myFile.isMissing()) {
out.print("<script type=\"text/javascript\">");
out.print("window.alert(\"请先选择要上传的文件\");");
out.print("window.location=\"upload.html;\"");
out.print("</script>");
} else {
String myFileName = myFile.getFileName();//取得上载的文件的文件名
ext = myFile.getFileExt();//取得后缀名
if (!(ext.length() > 0)) {
out.println("**************myFileName的名称是：" + myFileName);
}
int file_size = myFile.getSize();//取得文件的大小
String saveUrl = "";//文件保存路径
if (file_size < file_size_max) {
//更改文件名，取得当前上传时间的毫秒数值
Calendar calendar = Calendar.getInstance();
String fileName = String.valueOf(calendar.getTimeInMillis());//设置新的文件名
saveUrl += fileName + "." + ext;
myFile.saveAs(saveUrl, mySmartUpload.SAVE_PHYSICAL);
//上传完成，开始生成缩略图
java.io.File file = new java.io.File(saveUrl);//读入刚才上传的文件
out.println("ext=" + ext);
String newUrl = request.getRealPath("/") + url + fileName + "_min." + ext;//新的缩略图保存地址
java.awt.Image src = javax.imageio.ImageIO.read(file);//构造Image对象
float tagSize = 200;
int old_w = src.getWidth(null);//得到原图宽
int old_h = src.getHeight(null);//得到原图高
int new_w = 0;
int new_h = 0;
int tempSize;//设置临时大小
float tempDouble;
if (old_w > old_h) {
tempDouble = old_w / tagSize;
} else {
tempDouble = old_h / tagSize;
}
new_w = Math.round(old_w / tempDouble);
new_h = Math.round(old_h / tempDouble);
BufferedImage tag = new BufferedImage(new_w, new_h, BufferedImage.TYPE_INT_RGB);
tag.getGraphics().drawImage(src, 0, 0, new_w, new_h, null);//绘制缩小后的图
FileOutputStream newImage = new FileOutputStream(newUrl);//输出到文件流
JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(newImage);
encoder.encode(tag);//近JPEG编码
newImage.close();
} else {
out.print("<script type=\"text/javascript\">");
out.print("window.alert(\"上传文件大小不能超过\"+(file_size_max/1000)+\"K\");");
out.print("window.location=\"upload.html;\"");
out.print("</script>");
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>处理上传图片的JSP</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">
</head>
<body>
</body>
</html>
郑重声明：本站内容如果来自互联网及其他传播媒体，其版权均属原媒体及文章作者所有。转载目的在于传递更多信息及用于网络分享，并不代表本站赞同其观点和对其真实性负责，也不构成任何其他建议。
