Efficient and simple JSP pages

Source: Internet
Author: User
Tags sql string
JS <%@ page import= "java.sql.*,java.io.*,java.util.*"%>
<%@ page language= "java" pageencoding= "Big5"%>
<%! String au_id,au_lname,au_fname,phone,address,city,state;%>
<! DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 transitional//en" >
<HTML>
<HEAD>
<TITLE>ArticleList</TITLE>
<link rel= "stylesheet" href= "Style.css" >
<body bgcolor= "#FFFFFF" > <table width= "760" border= "0" cellspacing= "0" cellpadding= "0" align= "center" >
<tr>
<td>
<table width= "750" border= "0" cellspacing= "2" cellpadding= "2" align= "Center" >
&LT;TR align= "center" >
<td> </td>
</tr>
<tr>
<td>
<table width= "740" border= "0" cellspacing= "1" cellpadding= "1" align= "Center" >
&LT;TR align= "center" bgcolor= "#CCCCCC" >
<td><b> title </b></td>
<td><b> author </b></td>
<td><b> Types </b></td>
<td><b> Click </b></td>
<td><b> Join Time </b></td>
</tr>
<%
int i;
int ipage=5; Pages
int allpage; Page numbers
int pages; The number of pages accepted
int cpage=1; When you are in front of
int spage; Start Page
int allcol=0;
Vector v=null;//Data Library connection sounds
Connection Conn=null;
Java.lang.String Sql,pagesql;
Java.sql.ResultSet rs,pagers;
Statement Statement=null;
String kmsdb= "Jdbc:microsoft:sqlserver://127.0.0.1:1433;databasename=dbname";
Class.forName ("Com.microsoft.jdbc.sqlserver.SQLServerDriver");
conn = Drivermanager.getconnection (Kmsdb, "User", "pwd");

Pagesql = "Select COUNT (*) from Authors"; Take the total number of articles
statement = Conn.createstatement ();
pagers = Statement.executequery (pagesql);
while (Pagers.next ())
{
Allcol = Pagers.getint (1);
System.out.println (Allcol); }

Get the number of pages
Allpage = (int) Math.ceil (allcol + ipage-1)/ipage);
Whether the number of pages is empty
if (Request.getparameter ("pages") ==null) {
Pages=1;
} else {
pages = new Integer (Request.getparameter ("pages")). Intvalue ();
SYSTEM.OUT.PRINTLN (pages);
}
To judge the front page
if (pages > Allpage | | pages = 0)
{cpage = 1;}
Else
{
cpage = pages;
}
The starting page is judged
sql = ' Select top ' +ipage+ ' au_id,au_lname,au_fname,address,phone from authors where au_id ' not in ' (select Top + (cpage-1) * Ipage+ "au_id from authors order BY au_id Desc", ORDER BY au_id DESC ";
rs = statement.executequery (SQL);
while (Rs.next ())
{
Au_id=rs.getstring ("au_id");
Au_lname=rs.getstring ("au_lname");
Au_fname=rs.getstring ("au_fname");
Phone=rs.getstring ("Phone");
Address=rs.getstring ("Address");%>
&LT;TD width= "><%= au_id%></a></td>"
&LT;TD width= "><%= au_lname%></a></td>"
&LT;TD width= "><%= au_fname%></a></td>"
&LT;TD width= "><%=" Phone%></a></td>
&LT;TD width= "><%=" Address%></a></td>
</tr>
<%
}%>
<tr bgcolor= "#CCCCCC" >
&LT;TD colspan= "5" align= "right" valign= "middle" > A total of <%= allcol%> a total <%= allpage%> page <% if (cpage>1) {%><a href= "fy.jsp?pages=<%= cpage-1%>" ></a><%} if (cpage<allpage) {%><a href=" fy.jsp?pages=<%= cpage+1% > "></a><%}% >/<% for (i=1;i<=allpage;i++) {if (I!= pages) {%><a href= "fy.jsp?pages=<%= i%>" ><%= i%&gt ;</a> <%}}%></td>
</tr>
</table>
</td>
</tr>
</table>
</td>
</tr>
</table>
</body>

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