参考https://www.helloweba.com/view-blog-195.html

html页面

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上面的第一个div是显示帖子列表的地方，包括帖子的标题，作者昵称。

第二个div是个按钮，显示下一页。

jquery

我们先声明变量，后面的代码要用到以下变量。

var curPage = 1; //当前页码

var total,pageSize,totalPage;

接下来，我们自定义一个函数：getData()，用来获取当前页数据。函数中，我们利用$.ajax()向后台list_1test.php发送POST异步请求，将当前页码以JSON格式传递给后台。

1 function getData(page){2 $.ajax({3 type: "post",4 url: "list_1test.php",5 dataType:"json",6 data: {'pageNum':page-1},7 success: function(data) {8 console.log(data);9 total = data.num; //总记录数

10 pageSize = data.fnum; //每页显示条数

11 curPage = page; //当前页

12 totalPage = data.$pagenum; //总页数

13 var html = '';//定义html变量，他就是每次要加的代码14 for (var i = 0; i < data.length; i++) {//在php后台我定义的每页有5条帖子，data.length=515 html += '

';26 }27 $('#more').append(html);//追加28

29 },30 complete:function(){ //点击得到下一页

31 getPageBar();32 },33 });34 }

主要是获取下一页，rel的值

1 function getPageBar(){2 pageStr = "";3 pageStr += "点击加载更多";4 $("button").html(pageStr);5 }

当页面第一次加载时，我们加载第一页数据即getData(1)，当点击分页条中的下一页按钮时，调用getData(page)加载对应页码的数据。我们通过getPageBar()函数已预先在翻页连接的属性rel中在埋入了数字页码。

1 $(function(){2 getData(1);3 $("button span a").live('click',function(){4 var rel = $(this).attr("rel");5 if(rel){6 getData(rel);7 }8 });9 });

php

1 <?php2 require ("mysql_class.php");3 $db = new Mysql("localhost", "root", "201122", "userdb");4 define("TABLENAME", "user_post");5 $select = $db ->selectsql(TABLENAME);6 $num = $db -> num($select);//总记录数

7 $fnum = 5;//每页显示条数

8 $pagenum = ceil($num / $fnum);//总页数

9 $tmp = intval($_POST['pageNum']);//html页面传过来的，当前页数-110 //防止恶意翻页

11 if ($tmp+1 >$pagenum)12 echo "";13 //计算分页起始值

14 if ($tmp == 0) {15 $num1 = 0;16 } else{17 $num1 = $tmp *$fnum;18

19 }20 $query=mysql_query("SELECT * FROM user_post ORDER BY id DESC LIMIT" . $num1 . ",$fnum");//user_post帖子数据库21 while($row=mysql_fetch_array($query)){22 $userid = $row['user_id'];23 $result = mysql_query("select * from user_nickname where user_id='$userid'");//存有用户昵称的数据库user_nickname24 $roww =mysql_fetch_array($result);25 $data[] =array(26 'title'=>$row['title'],27 'nickname'=>$roww['nickname'],28 'postid'=>$row['id']29 );30

31

32 }33

34 die(json_encode($data));35 ?>

点击帖子之后显示文章的aritle.php

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6 文章7

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14 <?php15 //$id=$_GET['id'];

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17 require ("mysql_class.php");18 $db = new Mysql("localhost", "root", "201122", "userdb");19 //$id1 = intval($_GET['id']);

20 $postid = intval($_GET['id']);//list_1.html传过来的帖子数据库里的帖子的id21 define("TABLENAME", "user_post");22 $select = $db ->selectsql(TABLENAME);23 $num = $db -> num($select);24 for ($i = 0; $i < $num; $i++) {25 $row = $db -> arr($select);26 $id = $row['id'];27 $title = $row['title'];28 $aritle = $row['aritle'];29 if ($id ==$postid) {30 echo '

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'. $title .'

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'. $aritle .'

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37 ';

38 }39

40 }41 ?>

最后汇总

要在谷歌浏览器中显示，否则一些样式不管用。

1.list_1.html

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7 帖子列表8

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15 var curPage = 1; //当前页码

16 vartotal,pageSize,totalPage;17 //$(document).ready(function() {

18 function getData(page){19 $.ajax({20 type: "post",21 url: "list_1test.php",22 dataType:"json",23 data: {'pageNum':page-1},24 success: function(data) {25 console.log(data);26 total = data.num; //总记录数

27 pageSize = data.fnum; //每页显示条数

28 curPage = page; //当前页

29 totalPage = data.$pagenum; //总页数

30 var html = '';31 for (var i = 0; i < data.length; i++) {32 html += '

';43 }44 $('#more').append(html);45

46 },47 complete:function(){ //点击得到下一页

48 getPageBar();49 },50 });51 }52

53 function getPageBar(){54 pageStr = "";55 pageStr += "点击加载更多";56 $("button").html(pageStr);57 }58

59 $(function(){60 getData(1);61 $("button span a").live('click',function(){62 var rel = $(this).attr("rel");63 if(rel){64 getData(rel);65 }66 });67 });68

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2.list_1test.php

1 <?php2 require ("mysql_class.php");3 $db = new Mysql("localhost", "root", "201122", "userdb");4 define("TABLENAME", "user_post");5 $select = $db ->selectsql(TABLENAME);6 $num = $db -> num($select);//总记录数

7 $fnum = 5;//每页显示条数

8 $pagenum = ceil($num / $fnum);//总页数

9 $tmp = intval($_POST['pageNum']);//html页面传过来的，当前页数-110 //防止恶意翻页

11 if ($tmp+1 >$pagenum)12 echo "";13 //计算分页起始值

14 if ($tmp == 0) {15 $num1 = 0;16 } else{17 $num1 = $tmp *$fnum;18

19 }20 $query=mysql_query("SELECT * FROM user_post ORDER BY id DESC LIMIT" . $num1 . ",$fnum");21 while($row=mysql_fetch_array($query)){22 $userid = $row['user_id'];23 $result = mysql_query("select * from user_nickname where user_id='$userid'");24 $roww =mysql_fetch_array($result);25 $data[] =array(26 'title'=>$row['title'],27 'nickname'=>$roww['nickname'],28 'postid'=>$row['id']29 );30

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32 }33

34 die(json_encode($data));35 ?>

3.aritle.php

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14 <?php15 //$id=$_GET['id'];

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17 require ("mysql_class.php");18 $db = new Mysql("localhost", "root", "201122", "userdb");19 //$id1 = intval($_GET['id']);

20 $postid = intval($_GET['id']);21 define("TABLENAME", "user_post");22 $select = $db ->selectsql(TABLENAME);23 $num = $db -> num($select);24 for ($i = 0; $i < $num; $i++) {25 $row = $db -> arr($select);26 $id = $row['id'];27 $title = $row['title'];28 $aritle = $row['aritle'];29 if ($id ==$postid) {30 echo '

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'. $title .'

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'. $aritle .'

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37 ';

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40 }41 ?>

4.mysql_class.php

1 <?php2 header("content-type:text/html;charset=utf-8");3 classMysql {4 private$host;5 //服务器地址

6 private$root;7 //用户名

8 private$password;9 //密码

10 private$database;11 //数据库名12

13 //通过构造函数初始化类

14 function Mysql($host, $root, $password, $database) {15 $this -> host =$host;16 $this -> root =$root;17 $this -> password =$password;18 $this -> database =$database;19 $this ->connect();20 }21

22 function connect() {23 $this -> conn = mysql_connect($this -> host, $this -> root, $this ->password);24 //if($this->conn){25 //echo "连接mysql成功";26 //}else{27 //echo "连接mysql失败";28 //}29 //$this->conn=

30 mysql_select_db($this -> database, $this ->conn);31 //if($this->conn){32 //echo "连接db成功";33 //}else{34 //echo "连接db失败";35 //}

36 mysql_query("set names utf8");37 }38

39 function dbClose() {40 mysql_close($this ->conn);41 }42

43 function query($sql) {44 returnmysql_query($sql);45 }46

47 function row($result) {48 returnmysql_fetch_row($result);49

50 }51

52 function arr($result) {53 returnmysql_fetch_array($result);54 }55 function ass($result) {56 returnmysql_fetch_assoc($result);57 }58 function num($result) {59 returnmysql_num_rows($result);60 }61

62 function select($tableName, $condition) {63 return $this -> query("SELECT COUNT(*) FROM $tableName $condition");64 }65

66 function selectsql($tableName) {67 return $this -> query("SELECT * FROM $tableName");68 }69

70 function selectcon($tableName, $condition) {71 return $this -> query("SELECT * FROM $tableName $condition");72 }73

74 function insert($tableName, $fields, $value) {75 $this -> query("INSERT INTO $tableName $fields VALUES$value");76 }77

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80 }81 ?>

l两个数据表

帖子发布的数据表

存有用户昵称的数据表

两个表中的user_id是外键。主键user_id在user_register里面。自行设置。也可以只做一个表。把mysql语句改了就行。