solr查询返回只是xml格式或是json格式，并不像我们平时使用google或百度时的那种漂亮清爽的界面，实际上solr只负责数据的查询和返回，并不负责显示，如果要生成如google那样的界面，还的借助solr的php客户端，通过客户端进行查询后，再通过php代码显示出来。
本文的做法是一台服务器使用tomcat，运行solr，另一台服务器使用apache，负责和用户的交互与显示。
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solr的php客户端也有好几个，本文选择了一个简单易用的，?php-solr-client ，该项目的地址为?http://code.google.com/p/solr-php-client/，下载后解压放到apache的网站根目录。
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?下面是一个简单的查询例子：
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<?php// make sure browsers see this page as utf-8 encoded HTMLheader('Content-Type: text/html; charset=utf-8');$limit = 10;$query = isset($_REQUEST['q']) ? $_REQUEST['q'] : false;$results = false;if ($query){ // The Apache Solr Client library should be on the include path // which is usually most easily accomplished by placing in the // same directory as this script ( . or current directory is a default // php include path entry in the php.ini) require_once('Apache/Solr/Service.php'); // create a new solr service instance - host, port, and webapp // path (all defaults in this example) $solr = new Apache_Solr_Service('localhost', 8983, '/solr/'); // if magic quotes is enabled then stripslashes will be needed if (get_magic_quotes_gpc() == 1) { $query = stripslashes($query); } // in production code you'll always want to use a try /catch for any // possible exceptions emitted by searching (i.e. connection // problems or a query parsing error) try { $results = $solr->search($query, 0, $limit); } catch (Exception $e) { // in production you'd probably log or email this error to an admin // and then show a special message to the user but for this example // we're going to show the full exception die("<html><head><title>SEARCH EXCEPTION</title><body><pre>{$e->__toString()}</pre></body></html>"); }}?><html> <head> <title>PHP Solr Client Example</title> </head> <body> <form accept-charset="utf-8" method="get"> <label for="q">Search:</label> <input id="q" name="q" type="text" value="<?php echo htmlspecialchars($query, ENT_QUOTES, 'utf-8'); ?>"/> <input type="submit"/> </form><?php// display resultsif ($results){ $total = (int) $results->response->numFound; $start = min(1, $total); $end = min($limit, $total);?> <div>Results <?php echo $start; ?> - <?php echo $end;?> of <?php echo $total; ?>:</div> <ol><?php // iterate result documents foreach ($results->response->docs as $doc) {?> <li> <table style="border: 1px solid black; text-align: left"><?php // iterate document fields / values foreach ($doc as $field => $value) {?> <tr> <th><?php echo htmlspecialchars($field, ENT_NOQUOTES, 'utf-8'); ?></th> <td><?php echo htmlspecialchars($value, ENT_NOQUOTES, 'utf-8'); ?></td> </tr><?php }?> </table> </li><?php }?> </ol><?php}?> </body></html>?进行查询，如输入car ，结果如下?
连接solr查询成功，再进行些美工上的优化，就能有像百度一样的查询界面了