php引入lucene搜索引擎方法.

作者: ycc892009
发布时间:2015-07-10 15:12:42

 1、lucene包的下载地址:http://Apache.etoak.com/lucene/java/3.3.0/

2、下载jdk环境

3、下载JavaBridge URL:http://sourceforge.net/projects/php-java-bridge/

步骤:

1安装好jdk

2下载的JavaBridge.jar拷到php的ext 文件夹下.

3用rar压缩软件打开javaBridge.jar找到java文件夹,该文件夹下大都是后缀是.inc格式文件.把java整个考到www/php_java/下.

4双击javaBridge.jar打开8080端口

5在php_java下写php测试文件

<?php    require_once("java/Java.inc");    header("content-type:text/html; charset=utf-8");  // get instance of Java class java.lang.System in PHP  $system = new Java('java.lang.System');  $s = new Java("java.lang.String", "php-java-bridge config...<br><br>");  echo $s;    // demonstrate property access  print 'Java version='.$system->getProperty('java.version').' <br>';  print 'Java vendor=' .$system->getProperty('java.vendor').' <br>';  print 'OS='.$system->getProperty('os.name').' '.  $system->getProperty('os.version').' on '.  $system->getProperty('os.arch').' <br>';    // java.util.Date example  $formatter = new Java('java.text.SimpleDateFormat',  "EEEE, MMMM dd, yyyy 'at' h:mm:ss a zzzz");    print $formatter->format(new Java('java.util.Date'));
?>  

结果:

php-java-bridge config...

Java version=1.6.0_10-rc2
Java vendor=Sun Microsystems Inc.
OS=Windows XP 5.1 on x86
星期五, 八月 12, 2011 at 9:38:16 上午 中国标准时间Java version=1.6.0_10-rc2

用eclipse写一个TestLucene包类命名为TxtFileIndexer.java 

package TestLucene;    import java.io.File;  import java.io.FileReader;  import java.io.Reader;  import java.util.Date;    import org.apache.lucene.analysis.Analyzer;  import org.apache.lucene.analysis.standard.StandardAnalyzer;  import org.apache.lucene.document.Document;  import org.apache.lucene.document.Field;  import org.apache.lucene.index.IndexWriter;  import org.apache.lucene.index.Term;  import org.apache.lucene.search.Hits;  import org.apache.lucene.search.IndexSearcher;  import org.apache.lucene.search.TermQuery;  import org.apache.lucene.store.FSDirectory;    public class TxtFileIndexer ...{        public String test() ...{          return "test is ok hohoho";      }        /**//**       * @param args       */      public String createIndex(String indexDir_path,String dataDir_path) throws Exception ...{          String result = "";          File indexDir = new File(indexDir_path);          File dataDir = new File(dataDir_path);          Analyzer luceneAnalyzer = new StandardAnalyzer();          File[] dataFiles = dataDir.listFiles();          IndexWriter indexWriter = new IndexWriter(indexDir,luceneAnalyzer,true);          long startTime = new Date().getTime();          for(int i=0; i < dataFiles.length; i++) ...{              if(dataFiles[i].isFile() && dataFiles[i].getName().endsWith(".html")) ...{                  result += "Indexing file" + dataFiles[i].getCanonicalPath()+"<br />";                  Document document = new Document();                  Reader txtReader = new FileReader(dataFiles[i]);                  document.add(Field.Text("path",dataFiles[i].getCanonicalPath()));                  document.add(Field.Text("contents",txtReader));                  indexWriter.addDocument(document);              }          }            indexWriter.optimize();          indexWriter.close();          long endTime = new Date().getTime();            result += "It takes"+(endTime-startTime)                  + " milliseconds to create index for the files in directory "                  + dataDir.getPath();          return result;      }        public String searchword(String ss,String index_path)  throws Exception  ...{          String queryStr = ss;          String result = "Result:<br />";          //This is the directory that hosts the Lucene index          File indexDir = new File(index_path);          FSDirectory directory = FSDirectory.getDirectory(indexDir,false);          IndexSearcher searcher = new IndexSearcher(directory);          if(!indexDir.exists())...{              result = "The Lucene index is not exist";              return result;          }          Term term = new Term("contents",queryStr.toLowerCase());          TermQuery luceneQuery = new TermQuery(term);          Hits hits = searcher.search(luceneQuery);          for(int i = 0; i < hits.length(); i++)...{              Document document = hits.doc(i);              result += "<br /><a  >File: " + document.get("path")+"</a>\n";          }          return result;      }    }  


先创建一个我们写的TxtFileIndexer类的实例,

$tf = new Java('TestLucene.TxtFileIndexer');     

然后就按正常PHP类的调用方法的方式进行调用,首先创建索引:

$data_path = "F:/test/php_lucene/htdocs/data/manual"; //定义被索引内容的目录   $index_path = "F:/test/php_lucene/htdocs/data/search"; //定义生成的索引文件存放目录   $s = $tf->createIndex($index_path,$data_path); //调用Java类的方法   print $s; //打印返回的结果   


 

$index_path = "F:/test/php_lucene/htdocs/data/search"; //定义生成的索引文件存放目录 
$s = $tf->searchword("here is keyword for search",$index_path);
print $s; 
java_require("F:/test/php_lucene/htdocs/lib/"); //这是个例子,我的类和Lucene都放到这个目录下,这样就可以了,是不是很简单。 
测试代码  
<?php        error_reporting(0);        java_require("F:/test/php_lucene/htdocs/lib/");        $tf = new Java('TestLucene.TxtFileIndexer');      $s = $tf->test();      print "TestLucene.TxtFileIndexer->test()<br />".$s;      echo "<hr />";        $data_path = "F:/test/php_lucene/htdocs/data/manual";      $index_path = "F:/test/php_lucene/htdocs/data/search";        if(
{1}

GET["action"] == "create") ...{ $s = $tf->createIndex($index_path,$data_path); print $s; }else ...{ echo "<form method=get> <input type=text name=w /><input type=submit value=search /><br />"; if(
{1}

GET["w"] != "") ...{ $s = $tf->searchword(
{1}

GET["w"],$index_path); print $s; } }?>
  
  转载:http://www.lucene.com.cn/php.htm

标签: Lucene php
来源:http://blog.csdn.net/ycc892009/article/details/6680870

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