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百度分页效果之纯jsp版

程序员文章站 2022-05-03 21:15:33
数据库连接工具类">数据库连接工具类 package com.gao.page.utils; import java.sql.connection; import java.sql.dr...
package com.gao.page.utils;

import java.sql.connection;
import java.sql.drivermanager;
public class databaseconnection {
    /**
     *一个静态方法,返回一个数据库的连接。
     *这样达到了对数据库连接统一控制的目的。
     */ 
    public static connection getconnection()
    {
        connection con=null;
        string classforname=com.mysql.jdbc.driver;
        string servanddb=jdbc:mysql://localhost/gaodb;
        string user=root;
        string pwd=123; 
        try
        {
            class.forname(classforname);
            con = drivermanager.getconnection(servanddb,user,pwd);
        }
        catch(exception e)
        {
            e.printstacktrace();
        }
        return con;
    }
}

person实体类

package com.gao.page;

/** 
 * @作者   relieved
 * @创建日期   2015年6月14日
 * @描述  (person类) 
 * @版本 v 1.0
 */
public class person {
    private integer id;
    private string name;
    private integer gender;
    private string phone;
    private integer age;
    private string address;
    /**
     * @return the id
     */
    public integer getid() {
        return id;
    }
    /**
     * @param id the id to set
     */
    public void setid(integer id) {
        this.id = id;
    }
    /**
     * @return the name
     */
    public string getname() {
        return name;
    }
    /**
     * @param name the name to set
     */
    public void setname(string name) {
        this.name = name;
    }
    /**
     * @return the gender
     */
    public integer getgender() {
        return gender;
    }
    /**
     * @param gender the gender to set
     */
    public void setgender(integer gender) {
        this.gender = gender;
    }
    /**
     * @return the age
     */
    public integer getage() {
        return age;
    }
    /**
     * @param age the age to set
     */
    public void setage(integer age) {
        this.age = age;
    }
    /**
     * @return the phone
     */
    public string getphone() {
        return phone;
    }
    /**
     * @param phone the phone to set
     */
    public void setphone(string phone) {
        this.phone = phone;
    }
    /**
     * @return the address
     */
    public string getaddress() {
        return address;
    }
    /**
     * @param address the address to set
     */
    public void setaddress(string address) {
        this.address = address;
    }


}

数据库连接操作类

package com.gao.page;

import java.sql.connection;
import java.sql.preparedstatement;
import java.sql.resultset;
import java.sql.statement;
import java.util.arraylist;
import java.util.list;

import com.gao.page.utils.databaseconnection;
public class personbean {
    private static connection con;
    //构造方法,获得数据库的连接。
    static  {
        con=databaseconnection.getconnection();
    }
    /**
     * 带分页的查询
     * @param pagesize
     * @param pagenum
     * @return
     * @throws exception
     */
    public static list getpersoninf(int pagenum,int pagesize)throws exception
    {
        preparedstatement   pstmt=con.preparestatement(select * from person limit ?,? );
        pstmt.setint(1,(pagenum-1)*pagesize);
        pstmt.setint(2,pagesize);
        resultset rst=pstmt.executequery();
        list ret=new arraylist();
        while(rst.next())
        {
            person temp=new person();
            temp.setid(rst.getint(1));
            temp.setname(rst.getstring(2));
            temp.setgender(rst.getint(3));
            temp.setphone(rst.getstring(4));
            temp.setage(rst.getint(5));
            temp.setaddress(rst.getstring(6));

            ret.add(temp);
        }
        return ret;
    }
    /**
     * 获取记录总条数
     * @return
     * @throws exception
     */
    public static int getpersoncount()throws exception
    {
        statement   pstmt=con.createstatement();
        string sql = select * from person;
        resultset rst=pstmt.executequery(sql);
        rst.last();//移动到最后一行
        return rst.getrow();
    }

}
<%@page import=java.util.*,com.gao.page.person%>
<%@ page language=java contenttype=text/html; charset=utf-8
    pageencoding=utf-8%>
<%
    request.setcharacterencoding(utf-8); 
    string path = request.getcontextpath();
    string basepath = request.getscheme()+://+request.getservername()+:+request.getserverport()+path+/;
%>

<script src=./js/jquery-1.9.1.js></script> <% final int showpages = 5;//上一页和下一页之间显示的页码数 int pagenum = request.getparameter(pagenum)==null?1:integer.parseint(request.getparameter(pagenum));//默认为首页 int pagesize = request.getparameter(pagesize)==null?6:integer.parseint(request.getparameter(pagesize));//默认为6条 list list = person.getpersoninf(pagenum,pagesize); int totalrecords = person.getpersoncount();//总数据条数 int totalpages = totalrecords%pagesize==0?(totalrecords/pagesize):(totalrecords/pagesize+1);//总页码数 int pagestart = math.max(1, pagenum - showpages/2);//显示的起始页码 int pageend = math.min(totalpages, pagestart + showpages - 1);//显示的尾页 pagestart = math.max(1, pageend - showpages + 1); %>

员工信息


<% if(list.size()>0){ for(int i=0;i();i++)> <%}else{%> <% } }%>
id 姓名 性别 手机号 年龄 地址
<%=list.get(i).getid()%> <%=list.get(i).getname()%> <%=list.get(i).getgender()%> <%=list.get(i).getphone()%> <%=list.get(i).getage()%> <%=list.get(i).getaddress()%>
<%=list.get(i).getid()%> <%=list.get(i).getname()%> <%=list.get(i).getgender()%> <%=list.get(i).getphone()%> <%=list.get(i).getage()%> <%=list.get(i).getaddress()%>

<% if(pagenum>1){ %> index.jsp?pagenum=<%=(pagenum-1)%> class=n><上一页 <% } while(pagestart<=pageend){ if(pagestart==pagenum){ %> index.jsp?pagenum=<%=pagestart%>> <%=pagestart %> <% }else if(pagestart%2!=0){ %> index.jsp?pagenum=<%=pagestart%>> <%=pagestart %> <% }else{ %> index.jsp?pagenum=<%=pagestart%>> <%=pagestart %> <% } pagestart++; } if(pagenumindex.jsp?pagenum=<%=(pagenum+1)%> class=n>下一页> <% } %> ){%>

<%}else{%>

暂时没有数据!

<% } %> <script type=text/javascript> </script>

项目完整下载路径:http://download.csdn.net/detail/gao36951/8859947
效果图如下
百度分页效果之纯jsp版
百度分页效果之纯jsp版百度分页效果之纯jsp版