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server.php
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<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title>基于语义的搜索引擎</title>
<link rel="stylesheet" type="text/css" href="./css/server.css">
</head>
<body>
<script src="//cdn.bootcss.com/jquery/1.12.4/jquery.js"></script>
<script type="text/javascript">
function update_weight( url )
{
$.post("http://localhost/update_weight.php", { name : url } );
}
</script>
<?php
$search_text = "";
if( isset($_POST['search_text']) && $_POST['search_text'] != "" )
{
$search_text = $_POST['search_text'];
}
if( $_GET ) {
$page_num = $_GET['page_num']? $_GET['page_num']:1 ;
$search_text = $_GET['search_text'];
}
?>
<div id="header">
<form action="./server.php" method="post">
<a id="index" href="./index.php">精灵</a>
<input class="search_text" name="search_text" type="text" value="<?php echo $search_text;?>">
<input class="search_button" name="search_button" type="submit" value="搜 索" >
</form>
</div>
<div id="content">
<?php
$log = './log/search.log';
$error_log = './log/error.log';
$cache = './data/cache.txt';
$handle = fopen($log, 'a+');
$handle_error = fopen($error_log, 'a+');
$handle_cache = fopen($cache, 'w+');
if( ! $handle )
{
echo "不能打开文件$log\n";
exit;
}
if( ! $handle_error )
{
echo "不能打开文件$error_log\n";
exit;
}
/*
if( ! $handle_cache )
{
echo "不能打开文件$cache\n";
exit;
}
*/
$db = mysql_connect("139.129.129.74:3306", "disher", "disher");
if( !$db )
{
echo "mysql_connect error!\n";
exit();
}
mysql_select_db( "fairy", $db );
mysql_query("set names 'utf8'");
require_once("./lib/nlp/nlp.php");
$time_now = microtime();
/* 返回生成的SQL语句数组，以及对应的权重数组 */
$result = nlp_hander( $search_text );
$sql_array = $result[0];
$weight_array = $result[1];
$classify = $result[2];
$search_result = array();
$index = 0;
if( array_key_exists('title_and', $weight_array) )
{
$weight = $weight_array['title_and'];
$sql = $sql_array['title_and'];
/* 用and连起来的sql语句，是一个数组 */
$sql_num = count( $sql );
for( $i = 0; $i < $sql_num; $i++ )
{
$title_and_result = mysql_query( $sql[$i] );
while( $row = mysql_fetch_array($title_and_result) )
{
$row['weight'] = $row['weight'] * $weight;
$search_result[$index++] = $row;
}
}
}
if( array_key_exists('title_or', $weight_array) )
{
$weight = $weight_array['title_or'];
$sql = $sql_array['title_or']; // 用or连起来的sql语句，在数组中只占一个位置
$title_or_result = mysql_query( $sql );
while( $row = mysql_fetch_array($title_or_result) )
{
$row['weight'] = $row['weight'] * $weight;
$search_result[$index++] = $row;
}
}
if( array_key_exists('material_and', $weight_array) )
{
$weight = $weight_array['material_and'];
$sql = $sql_array['material_and'];
$sql_num = count( $sql );
for( $i = 0; $i < $sql_num; $i++ )
{
$material_and_result = mysql_query( $sql[$i] );
while( $row = mysql_fetch_array($material_and_result) )
{
$row['weight'] = $row['weight'] * $weight;
$search_result[$index++] = $row;
}
}
}
if( array_key_exists('material_or', $weight_array) )
{
$weight = $weight_array['material_or'];
$sql = $sql_array['material_or'];
$material_or_result = mysql_query( $sql );
while( $row = mysql_fetch_array($material_or_result) )
{
$row['weight'] = $row['weight'] * $weight;
$search_result[$index++] = $row;
}
}
if( array_key_exists('type_and', $weight_array) )
{
$weight = $weight_array['type_and'];
$sql = $sql_array['type_and'];
$sql_num = count( $sql );
for( $i = 0; $i < $sql_num; $i++ )
{
$type_and_result = mysql_query( $sql[$i] );
while( $row = mysql_fetch_array($type_and_result) )
{
$row['weight'] = $row['weight'] * $weight;
$search_result[$index++] = $row;
}
}
}
if( array_key_exists('type_or', $weight_array) )
{
$weight = $weight_array['type_or'];
$sql = $sql_array['type_or'];
$type_or_result = mysql_query( $sql );
while( $row = mysql_fetch_array($type_or_result) )
{
$row['weight'] = $row['weight'] * $weight;
$search_result[$index++] = $row;
}
}
$row_count = count( $search_result );
quickSort( $search_result, 0, $row_count - 1 );
$time_end = microtime();
$row_per_page = 8;
$page_total = ceil( $row_count / $row_per_page );
if( $page_num < 1 )
{
/* 如当前页小于1，则把当前页置1 */
$page_num = 1;
}
if( $page_num > $page_total )
{
/* 当前页大于总页数，则当前页为总页数 */
$page_num = $page_total;
}
?>
<p>共找到 <?php echo $row_count;?> 条记录，用时:<?php echo $time_end - $time_now; ?> 秒</p>
<?php
$start_now = ($page_num - 1) * $row_per_page;
?>
<table id="big_table" cellspacing="0" cellpadding="0">
<?php
for( $i = $start_now; $i < $start_now + 8; $i++ )
{
?>
<tr>
<td>
<table class="small_table" cellspacing="0" cellpadding="0">
<tr>
<td>
<a href="<?php echo $search_result[$i]['url'];?>" target="_blank" onclick=update_weight('<?php echo $search_result[$i]['url'];?>')><img class="pic" src="<?php echo $search_result[$i]['picture'];?>" height="100" width="100" alt="<?php echo $search_result[$i]['title'];?>"></a>
</td>
<td>
<table class="show_table">
<tr>
<td>
<a href="<?php echo $search_result[$i]['url'];?>" target="_blank" onclick=update_weight('<?php echo $search_result[$i]['url'];?>')><b><?php echo $search_result[$i]['title']?></b></a>
</td>
<tr>
<td>
<b>原料：</b><?php echo $search_result[$i]['material']; ?>
</td>
<tr>
<td>
<b>类型：<?php echo $search_result[$i]['type']; ?></b>
</td>
</tr>
</table>
</td>
</tr>
</table>
</td>
</tr>
<?php
}
?>
</table>
<br/>
<br/>
<table>
<tr>
<?php
$start_page = $page_num - floor($row_per_page / 2);
$start_page = $start_page < 1 ? 1 : $start_page;
$end_page = $page_num + floor($row_per_page / 2);
$end_page = $end_page > $page_total ? $page_total : $end_page;
/* 当前的显示的页数不够最大页码时，进行左右调整 */
$current_page = $end_page - $start_page + 1;
/* 进行向左调整 */
if( $current_page < $row_per_page && $start_page > 1 )
{
$start_page = $start_page - ($row_per_page - $current_page);
$start_page = $start_page < 1 ? 1 : $start_page;
$current_page = $end_page - $start_page + 1;
}
/* 向右调整 */
if( $current_page < $row_per_page && $end_page < $page_total )
{
$end_page = $end_page + ($row_per_page - $current_page);
$end_page = $end_page > $page_total ? $page_total : $end_page;
}
/* 最多显示8页 */
for( $j = $start_page; $j <= $end_page; $j++ )
{
?>
<td>
<a href="./server.php?page_num=<?php echo $j;?>&search_text=<?php echo $search_text;?>"><p id="pagenum"><?php echo $j; ?></p></a>
</td>
<?php
}
?>
<td>
<p>共 <?php echo $page_total;?> 页</p>
</td>
</tr>
</table>
</div>
<!--
$write_log = $now.">>".$search_text.";\r\n";
if( ! mysql_error() )
{
fwrite($handle, $write_log);
}
else
{
fwrite( $handle_error, $write_log );
echo mysql_error()."\n";
}
-->
<div id="footer">
<!--
<script language=JavaScript>
today=new Date();
function initArray(){
this.length=initArray.arguments.length
for(var i=0;i<this.length;i++)
this[i+1]=initArray.arguments[i] }
var d=new initArray(
"星期日",
"星期一",
"星期二",
"星期三",
"星期四",
"星期五",
"星期六");
document.write(
"<font color=#0000FF style='font-size:9pt;font-family:fantasy'> ",
today.getFullYear(),"年 ",
today.getMonth()+1,"月 ",
today.getDate(),"日 ",
d[today.getDay()+1],
"</font>" );
</script>
-->
<font color=grey style='font-size:8pt;'>
Copyright by USTC 2015 - 2016
</font>
</div>
</body>
</html>