Question

怎么用jsp实现分类，比如说实现百度上有精品贴、游戏区、置顶。。。。我用jsp做贴吧需要实现，谢谢！

Answer 1

page是关键字,不能当变量.
conn.jsp
String sDBDriver = \"COM.ibm.db2.jdbc.app.DB2Driver\";
String sConnStr = \"jdbc:db2:faq\";
Connection conn = null;
Statement stmt = null;
ResultSet rs=null;
try {
Class.forName(sDBDriver);
catch(java.lang.ClassNotFoundException e) {
out.print(\"faq(e.getMessage());
try{
conn = DriverManager.getConnection(sConnStr,\"wsdemo\",\"wsdemo1\");
stmt = conn.createStatement();
}catch(SQLException e){
out.print(e.toString());
query.jsp
<%@ page language=\"java\" import=\"java.sql.*\" %>
<%@ page contentType=\"text/html; charset=gb2312\" %>
<%@ include file=\"conn.jsp\" %>
int pages=0;
int pagesize=10;
ResultSet result = null;
ResultSet rcount = null;
pages = new Integer(request.getParameter(\"pages\")).intValue();
if (pages>0)
String sql=\" state=\'我不傻\'\";
int count=0;
try {
rcount = stmt.executeQuery(\"SELECT count(id) as id from user where \"+sql);
catch(SQLException ex) {
out.print(\"aq.executeQuery: \" + ex.getMessage());
if(rcount.next())
count = rcount.getInt(\"id\");
rcount.close();
if (count>0)
sql=\"select * from user where \"+sql;
try {
result = stmt.executeQuery(sql);
catch(SQLException ex) {
out.print(\"aq.executeQuery: \" + ex.getMessage());
int i;
String name;
// result.first();
// result.absolute((pages-1)*pagesize);
// 此方法jdbc2.0支持.编译通过,但执行不过,不知是不是跟驱动有关,只好用下面的笨办法.
for(i=1;i<=(pages-1)*pagesize;i++)
result.next();
for(i=1;i<=pagesize;i++) {
if (result.next()) {
name=result.getString(\"name\");
out.print(name);
result.close();
int n= (int)(count/pagesize);
if (n*pagesize<count) n++;
if (n>1)
{for(i=1;i<=n;i++)
out.print(\"<a href=query.jsp?pages=\"+i+\">\"+i+\" </a>\");
备注，转自天涯