<%@ page contentType="text/html; charset=utf-8" language="java" %> <%@ page import="java.sql.*"%>
<%
int iLeft;
int iTop;
if (request.getParameter("hidL") != null) {
iLeft = Integer.parseInt(request.getParameter("hidL"));
iTop = Integer.parseInt(request.getParameter("hidT"));
if (request.getParameter("btnU") != null
&& request.getParameter("btnU").compareTo("U") == 0)
iTop -= 10;
if (request.getParameter("btnD") != null
&& request.getParameter("btnD").compareTo("D") == 0)
iTop += 10;
if (request.getParameter("btnL") != null
&& request.getParameter("btnL").compareTo("L") == 0)
iLeft -= 10;
if (request.getParameter("btnR") != null
&& request.getParameter("btnR").compareTo("R") == 0)
iLeft += 10;
if (request.getParameter("btnM") != null
&& request.getParameter("btnM").compareTo("M") == 0) {
iLeft = 400;
iTop = 200;
}
} else {
iLeft = 400;
iTop = 200;
}
%>
<HTML>
<HEAD>
<TITLE>FiveButtons</TITLE>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=utf-8">
</HEAD>
<FORM>
<INPUT NAME="btnU" TYPE="SUBMIT" VALUE="U"
STYLE="position:absolute; top:100; left:400">
<INPUT NAME="btnD" TYPE="SUBMIT" VALUE="D"
STYLE="position:absolute; top:300; left:400">
<INPUT NAME="btnL" TYPE="SUBMIT" VALUE="L"
STYLE="position:absolute; top:200; left:300">
<INPUT NAME="btnR" TYPE="SUBMIT" VALUE="R"
STYLE="position:absolute; top:200; left:500">
<INPUT NAME="btnM" TYPE="SUBMIT" VALUE="M"
STYLE="position:absolute; top:<%=iTop%>; left:<%=iLeft%>">
<INPUT NAME="hidL" TYPE="HIDDEN" VALUE="<%=iLeft%>">
<INPUT NAME="hidT" TYPE="HIDDEN" VALUE="<%=iTop%>">
</FORM>
<BODY>
</BODY>
</HTML>
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<HTML>
<SCRIPT language="JavaScript1.2" TYPE="TEXT/JAVASCRIPT">
function btnClick(s) {
if (s == "U")
this.btnM.style.top = parseInt(this.btnM.style.top) - 10;
if (s == "D")
this.btnM.style.top = parseInt(this.btnM.style.top) + 10;
if (s == "L")
this.btnM.style.left = parseInt(this.btnM.style.left) - 10;
if (s == "R")
this.btnM.style.left = parseInt(this.btnM.style.left) + 10;
if (s == "M") {
this.btnM.style.top = 200;
this.btnM.style.left = 400;
}
}
</SCRIPT>
<HEAD>
<TITLE>FiveButtons</TITLE>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=utf-8">
</HEAD>
<BODY>
<INPUT NAME="btnU" TYPE="SUBMIT" VALUE="U"
STYLE="position:absolute; top:100; left:400"
onClick="btnClick(this.value)">
<INPUT NAME="btnD" TYPE="SUBMIT" VALUE="D"
STYLE="position:absolute; top:300; left:400"
onClick="btnClick(this.value)">
<INPUT NAME="btnL" TYPE="SUBMIT" VALUE="L"
STYLE="position:absolute; top:200; left:300"
onClick="btnClick(this.value)">
<INPUT NAME="btnR" TYPE="SUBMIT" VALUE="R"
STYLE="position:absolute; top:200; left:500"
onClick="btnClick(this.value)">
<INPUT NAME="btnM" TYPE="SUBMIT" VALUE="M"
STYLE="position:absolute; top:200; left:400"
onClick="btnClick(this.value)">
</BODY>
</HTML>
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<%@ page contentType="text/html; charset=utf-8" language="java" %>
<%@ import="java.sql.*" %>
<HTML>
<HEAD>
<TITLE>Information</TITLE>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=utf-8">
<STYLE TYPE="text/css">
TABLE, BODY {
"Courier New";
font-size: 10pt;
}
</STYLE>
</HEAD>
<BODY>
<%
if(request.getParameter("isHaveData") == null){ %>
<FORM NAME="frmClient" METHOD="POST">
<INPUT TYPE="HIDDEN" NAME="isHaveData" VALUE="">
<INPUT TYPE="HIDDEN" NAME="iScreenWidth">
<INPUT TYPE="HIDDEN" NAME="iColorDepth">
<INPUT TYPE="HIDDEN" NAME="iScreenHeight">
<INPUT TYPE="HIDDEN" NAME="sBrowseName">
<INPUT TYPE="HIDDEN" NAME="sBrowseVer">
<INPUT TYPE="HIDDEN" NAME="iClientHeight">
<INPUT TYPE="HIDDEN" NAME="iClientWidth">
<s cript language="Javas cript1.4" TYPE="TEXT/JAVAs cript">
frmClient.iScreenWidth.value = screen.width;
frmClient.iScreenHeight.value = screen.height;
frmClient.iColorDepth.value = screen.colorDepth;
frmClient.sBrowseName.value = navigator.appName;
frmClient.sBrowseVer.value = navigator.appVersion;
frmClient.iClientHeight.value = screen.availHeight;
frmClient.iClientWidth.value = screen.availWidth;
frmClient.submit();
</SCRIPT>
</FORM>
<% } else { %>
<OBJECT id=objMSAgent
classid=CLSID:D45FD31B-5C6E-11D1-9EC1-00C04FD7081F
width="32" height="32">
</OBJECT>
<SCRIPT language="JavaScript1.4" TYPE="TEXT/JAVASCRIPT">
var MerlinID;
var MerlinACS;
objMSAgent.Connected = true;
MerlinLoaded = LoadLocalAgent(MerlinID, MerlinACS);
Merlin = objMSAgent.Characters.Character(MerlinID);
Merlin.Show();
Merlin.Play("Surprised");
Merlin.Speak("<%= "Hello?" %>");
Merlin.Play("GestureLeft");
Merlin.Think("<%= "This is a jsp variant" %>");
Merlin.Play("Pleased");
Merlin.Think("<%= "JavaScript uses jsp variants" %>");
Merlin.Play("GestureDown");
Merlin.Speak("<%= "Bye! so Easy!" %>");
Merlin.Hide();
function LoadLocalAgent(CharID, CharACS) {
LoadReq = objMSAgent.Characters.Load(CharID, CharACS);
return(true);
}
</SCRIPT>
<TABLE>
<TR><TD COLSPAN="2">
<FONT COLOR="#FF0000">your infomation:</FONT>
</TD></TR>
<TR><TD>Screen Width:</TD>
<TD><%= request.getParameter("iScreenWidth") %></TD></TR>
<TR><TD>Screen Height:</TD>
<TD><%= request.getParameter("iScreenHeight") %></TD></TR>
<TR><TD>Color Depth:</TD>
<TD><%= request.getParameter("iColorDepth") %></TD></TR>
<TR><TD>Browse Name:</TD>
<TD><%= request.getParameter("sBrowseName") %></TD></TR>
<TR><TD>Browse Version:</TD>
<TD><%= request.getParameter("sBrowseVer") %></TD></TR>
<TR><TD>Client area Width:</TD>
<TD><%= request.getParameter("iClientWidth") %></TD></TR>
<TR><TD>Client area Height:</TD>
<TD><%= request.getParameter("iClientHeight") %></TD></TR>
</TABLE>
<% String strDSN =
"jdbc:odbc:driver={Microsoft Access Driver (*.mdb)};DBQ="
+ application.getRealPath("//WEB-INF//msg.mdb");
Connection cnct = null;
Statement stmt = null;
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
cnct = DriverManager.getConnection(strDSN,"","");
stmt = cnct.createStatement(
ResultSet.TYPE_SCROLL_INSENSITIVE,
ResultSet.CONCUR_UPDATABLE);
java.text.DateFormat dfNow =
java.text.DateFormat.getDateTimeInstance(
java.text.DateFormat.MEDIUM,
java.text.DateFormat.MEDIUM);
String strDate = dfNow.format(new java.util.Date());
String sInsertSQL = "INSERT INTO ClientMsg VALUES(" +
"/'" + request.getRemoteAddr() + "/'," +
"/'" + strDate +"/'," +
"/'" + request.getParameter("iScreenWidth") + "/'," +
"/'" + request.getParameter("iScreenHeight") + "/'," +
"/'" + request.getParameter("iColorDepth") + "/'," + "/'" + request.getParameter("sBrowseName") + "/'," +
"/'" + request.getParameter("sBrowseVer") + "/'," +
"/'" + request.getParameter("iClientWidth") + "/'," +
"/'" + request.getParameter("iClientHeight") + "/');";
stmt.executeUpdate(sInsertSQL); %>
<P><FONT COLOR="#FF0000">
The information of other visitors:</FONT></P>
<% ResultSet RS = stmt.executeQuery("SELECT * FROM ClientMsg");
while(RS.next()){ %>
<TABLE>
<TR><TD COLSPAN="2"><HR SIZE="1"></TD></TR>
<TR><TD COLSPAN="2"><STRONG>
<FONT COLOR="#0000FF"><%=RS.getString("IP")%> at
<%=RS.getString("Time")%> visited this Page
</FONT></STRONG></TD></TR>
<TR><TD>Screen Width:</TD>
<TD><%= RS.getString("ScreenWidth") %></TD></TR>
<TR><TD>Screen Height:</TD>
<TD><%= RS.getString("ScreenHeight") %></TD></TR>
<TR><TD>Color Depth:</TD>
<TD><%= RS.getString("ColorDepth") %></TD></TR>
<TR><TD>Browse Name:</TD>
<TD><%= RS.getString("BrowseName") %></TD></TR>
<TR><TD>Browse Version:</TD>
<TD><%= RS.getString("BrowseVer") %></TD></TR>
<TR><TD>Client area Width:</TD>
<TD><%= RS.getString("ClientWidth") %></TD></TR>
<TR><TD>Client area Height:</TD>
<TD><%= RS.getString("ClientHeight") %></TD></TR>
</TABLE>
<% }
RS.close();
RS = null;
stmt.close();
cnct.close();
stmt = null;
cnct = null;
}
%>
<BR>
</BODY>
</HTML>
這個Web運行時,首先用JavaScript獲得客戶端的信息,然後自動提交頁面,提交後JSP會記錄相應信息,並保存在數據庫裏,然後再把所有的訪問者的情況從數據庫裏讀出來顯示。在這個程序裏還調用了MSAgent他所顯示的文字全都是JSP的變量,當然你也可以設置成別的。
本程序還用到了數據庫,是Accsess,一個放於 %YOURAPP%/WEB-INF/msg.mdb的文件。裏面有一個表ClientMsg。有幾個字段:
好的例子一個足已!
也許你會說,不就是提交麼?
對,下一次我們講的就是 提交的藝術。
(運行環境 IE6、TOMCAT4.1.x JDK1.4.x)
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