Save a period of jsp upload pictures code (a good red tape ... who has a good plug-in is not recommended ...)
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Using a SmartUpload. Good red tape ...
Tried JQuery plug-in Uploadify seemingly less suited to this project
<%@ page contentType="text/html;charset=GBK"%>
<%@page import="com.jspsmart.upload.SmartUpload"%>
<%@page import="java.util.Date"%>
<%@page import="com.jspsmart.upload.File"%>
<%@page import="java.awt.Image"%>
<base target="_self">
<link href="../../css/style.css" rel="stylesheet" type="text/css">
<BODY background="../../image/bg.jpg" leftMargin=0 topMargin=0>
<div>
<div>
<form action="uploadpic.jsp?oper=upload" method="post" enctype="multipart/form-data" name="form2">
<br>
<input type="file" name="pic">
<p> Please upload pictures of recent passport size documents ! Photo size height 105 to 210 Pixels, width 75 To 150 pixels , The file size within the 50KB !</p>
<p> If the photos do not meet the requirements, please download the <a href="#"> The picture processing program </a> For processing .</p>
<input type="submit" value=" Start upload " >
<input type="button" value=" Close window ">
</form>
</div>
</div>
<%
String oper = request.getParameter("oper");
if("upload".equals(oper)){
SmartUpload mySmartUpload = new SmartUpload();
mySmartUpload.initialize(pageContext);
try {
mySmartUpload.upload();
} catch (Exception e){
%>
<SCRIPT language=javascript>
alert(" Only allow uploading .jpg and .jpeg Type the picture file ");
window.location='uploadpic.jsp';
</script>
<%
}File myFile = mySmartUpload.getFiles().getFile(0);
if (myFile.isMissing()){%>
<SCRIPT language=javascript>
alert(" Please select a file to upload ");
</script><%}
else{
boolean flagOne = true;
if(myFile.getFileExt().equals("jpg")||myFile.getFileExt().equals("JPG")||myFile.getFileExt().equals("jpeg")){
}
else{
flagOne = false;
%>
<script language=javascript>
alert(" Only allow uploading .jpg picture file type ");
</script>
<%
}
if(myFile.getSize()>50000){
flagOne = false;
%>
<script language=javascript>
alert(" Only allowed file size of the picture file in the 50KB ");
</script>
<%
}
if(flagOne){
String myFileName = String.valueOf(new Date().getTime())+".jpg";
myFile.saveAs("/upload/"+myFileName,myFile.SAVEAS_VIRTUAL);
java.io.File file = new java.io.File(request.getRealPath("/")+"upload/"+myFileName);
if(file.exists()){
Image src = javax.imageio.ImageIO.read(file);
boolean flag = true;
int old_w=src.getWidth(null);
int old_h=src.getHeight(null);
if(old_w < 75 || old_w > 150){
flag = false;
%>
<script language=javascript>
alert(" Only allow uploads width of 75 to 150 Pixel picture file ");
</script>
<%
}
if(old_h < 105 || old_h > 210){
flag = false;
%>
<script language=javascript>
alert(" Only allow uploads height 105 to 210 Pixel picture file ");
</script>
<%
}
if(flag){
%>
<SCRIPT language=javascript>
window.returnValue = '<%=myFileName%>';
</script>
<%
}
}
}
}
}
%>
</body>
Main window of the body:
t = window.showModalDialog('uploadpic.jsp','DialogWidth:450px;DialogHeight:350px;help:no;status:no');
take callback value
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