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📄 transact.jsp

📁 一个使用jdbc存储和调用大对象(比如图片等)的例子
💻 JSP
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<HTML>
<HEAD>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<META http-equiv="refresh" content="3">
<TITLE>outputMessage</TITLE>
</HEAD>

<script language="JavaScript">
function scrollchange() 
{
	parent.mainFrame.window.scroll(0,60000);
	parent.mainFrame.document.bgColor="#ffffff";
return true;
}
</script>

<BODY onload="scrollchange()" bgcolor="#FF9900">

<FORM method="post">

<%   
String Name =(String)session.getValue("Name");
if (Name == null) {
	return;
}
String str1="<div style='font-size:11pt;line-height:15pt'>";
String str2=new String("<font color='blue'>"+Name+"</font>"); 
String str3=new String("<font color='red'>[悄悄话]</font>");
String str4=new String("<br>");
String str5=new String("对");
String str6="</div>";

Integer MessageIndex =(Integer)session.getValue("MessageIndex");    
if((MessageIndex==null )||( MessageIndex.intValue() >= 200 ))
	MessageIndex=new Integer(0);

synchronized(application) {  
	String alone=new String("yes");
	Vector DisplayMessage=null;
	DisplayMessage =(Vector)application.getAttribute("Message"); 

	if(DisplayMessage !=null) {  
		if(DisplayMessage.size()< MessageIndex.intValue()) {
			MessageIndex=new Integer(DisplayMessage.size());
		}

		if(MessageIndex.intValue()!= DisplayMessage.size()) {	   
			for(int i=MessageIndex.intValue();i<DisplayMessage.size();i=i+6) {
				int     aloneindex=i;
				int     nameindex=i+1;
				int     talkwithindex=i+2;
				String  Messagestr= (String)DisplayMessage.get(i+3);
				String  systemSpeak= (String)DisplayMessage.get(i+4);
				String  action2= (String)DisplayMessage.get(i+5);
				String  alonetag  = (String)DisplayMessage.get(aloneindex);
								
				if(alonetag==null)
					alonetag=new String("all");

				String  nametag =  (String)DisplayMessage.get(nameindex);
				
				String  talkwithtag =(String)DisplayMessage.get(talkwithindex);
				
				//设置欢迎语句
				if(systemSpeak.compareTo("yes")==0) {
					Messagestr = str1+Messagestr+str6;
					%>
					<script language="JavaScript">
						parent.mainFrame.document.write("<%= Messagestr%>")
					</script>
					<%
				}
								
				else {
					//悄悄话
					if(alonetag.compareTo(alone)==0) {
					//自己对别人说悄悄话
						if(nametag.compareTo(Name)==0) {
							//有动作
							if (action2.compareTo(alone)==0) {
								Messagestr=str1+str3+str2+Messagestr+str4+str6;
							}
							//没动作
							else {
								Messagestr=str1+str3+str2+"对<font color='blue'>"+talkwithtag+"</font>说:"+Messagestr+str4+str6;                           
							}
							%>
							<script language="JavaScript">
								parent.mainFrame.document.write("<%= Messagestr%>")
							</script>
							<%
						}
						//别人对自己说悄悄话
						if((talkwithtag.compareTo(Name)==0)) { 
							//有动作
							if (action2.compareTo(alone)==0) {
								Messagestr=str1+str3+"<font color='blue'>"+nametag+"</font>"+Messagestr+str4+str6;  
							}
							//没有动作
							else {
								Messagestr=str1+str3+"<font color='blue'>"+nametag+"</font>对"+str2+"说:"+Messagestr+str4+str6;  
							}
							%>
							<script language="JavaScript">
								parent.mainFrame.document.write("<%= Messagestr%>")
							</script>
							<%              
						}    
	
					}
					//自己对别人说话
					else {
						if(nametag.compareTo(Name)==0) {
							//有动作
							if (action2.compareTo(alone)==0) {
								Messagestr=str1+str2+Messagestr+str4+str6;
							}
							//没动作
							else {
								Messagestr=str1+str2+"对<font color='blue'>"+talkwithtag+"</font>说:"+Messagestr+str4+str6;                           
							}
							%>
							<script language="JavaScript">
								parent.mainFrame.document.write("<%= Messagestr%>")
							</script>
							<% 
	
						}
						//别人对自己说话
						else if((talkwithtag.compareTo(Name)==0)) {
							//有动作
							if (action2.compareTo(alone)==0) {
								Messagestr=str1+"<font color='blue'>"+nametag+"</font>"+Messagestr+str4+str6;  
							}
							//无动作
							else {	 
								Messagestr=str1+"<font color='blue'>"+nametag+"</font>对"+str2+"说:"+Messagestr+str4+str6;  
							}
							%>
							<script language="JavaScript">
								parent.mainFrame.document.write("<%= Messagestr%>")
							</script>
							<%             
						}
						//其他人的讲话 
						else {
							//有动作
							if (action2.compareTo(alone)==0) {
								Messagestr= str1+"<font color='blue'>"+nametag+"</font>"+Messagestr+str4+str6;
							}
							else {
								Messagestr= str1+"<font color='blue'>"+nametag+"</font>"+"对<font color='blue'>"+talkwithtag+"</font>说:"+Messagestr+str4+str6;
							}
							%>
							<script language="JavaScript">
								parent.mainFrame.document.write("<%= Messagestr%>")
							</script>
							<%             
						}                      
	
					}
				}   
	
				Integer count=new Integer(i+6);
	
				session.putValue("MessageIndex",count);	
				
			}	
		}	
	}
	else 
	out.println("Welcome to here!");	
}

%>

</form>
</body>
</html>

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