hibernateSearch3開發示例

1、開發環境：spring2.5、hibernate3.3.1GA、hibernateSearch3.1.0GA;

2、開發是基於maven上開發的，首先新建一個web工程，添加maven支持，在pom.xml中添加一下幾個依賴包：

 <dependencies>    
  <dependency>
      <groupId>org.apache.openejb</groupId>
      <artifactId>javaee-api</artifactId>
      <version>5.0-1</version>
      <scope>provided</scope>
    </dependency>
        <dependency>  
    <groupId>org.hibernate</groupId>  
    <artifactId>hibernate-search</artifactId>  
    <version>3.1.0.GA</version>  
	</dependency>  
	<dependency>  
	    <groupId>org.hibernate</groupId>  
	    <artifactId>hibernate-annotations</artifactId>  
	    <version>3.4.0.GA</version>  
	</dependency>    

<!-- hibernate framework end -->  

<!-- lucene start -->  
<dependency>  
    <groupId>org.apache.lucene</groupId>  
    <artifactId>lucene-analyzers</artifactId>  
    <version>3.0.1</version>  
</dependency>  
<dependency>  
    <groupId>org.apache.lucene</groupId>  
    <artifactId>lucene-highlighter</artifactId>  
    <version>3.0.1</version>  
</dependency>  
  </dependencies>

其他就是hibernate+spring的配置了；
注意一點的就是在配置文件hibernate的屬性後面加上索引的監聽和索引存放的位置，如：

<!-- Spring管理Hibernate的Mapping對象 -->
	<bean id="sessionFactory"
		class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
		<property name="dataSource">
			<ref bean="dataSource" />
		</property>
		<property name="hibernateProperties">
			<props>
				<prop key="hibernate.dialect">
					${hibernate.dialect}
				</prop>
				<prop key="hibernate.hbm2ddl.auto">
					${hibernate.hbm2ddl.auto}
				</prop>
				<prop key="hibernate.show_sql">
					${hibernate.show_sql}
				</prop>
				<prop key="hibernate.use_sql_comments">
					${hibernate.use_sql_comments}
				</prop>
				<prop key="hibernate.use_outer_join">
					${hibernate.use_outer_join}
				</prop>
				<prop key="hibernate.current_session_context_class">
					${hibernate.current.session.context.class}
				</prop>
				<prop key="connection.autoReconnect">
					${connection.autoReconnect}
				</prop> 
        		<prop key="connection.autoReconnectForPools">
        			${connection.autoReconnectForPools}
        		</prop> 
        		<prop key="connection.is-connection-validation-required">
        			${connection.is-connection-validation-required}
        		</prop> 

        		<!-- 索引配置 -->
        		<prop key="hibernate.search.default.directory_provider">
					org.hibernate.search.store.FSDirectoryProvider
				</prop>
				<prop key="hibernate.search.default.indexBase">
					d:/JAVA/hibernateIndex
				</prop>

			</props>
		</property>

		<!-- 索引配置-->
		<property name="eventListeners">  
            <map>  
                <entry key="post-update">  
                    <bean class="org.hibernate.search.event.FullTextIndexEventListener" />  
                </entry>  
                <entry key="post-insert">  
                    <bean class="org.hibernate.search.event.FullTextIndexEventListener" />  
                </entry>  
                <entry key="post-delete">  
                    <bean class="org.hibernate.search.event.FullTextIndexEventListener" />  
                </entry>  
            </map>  
		</property>

		<property name="mappingDirectoryLocations">
			<list>
				<value>${hibernate.mappingDirectoryLocations}</value>
			</list>
		</property>
	</bean>

這時啓動如果報slf4j錯誤，可能是你的slf4j包衝突，需要把你lib裏相關的jar包刪了，在maven支持中還剩下slf4j-api-1.4.2.jar，需要導入slf4j-logging-1.4.2.jar包，如果導入更高版可能會報錯，這個包在百度搜slf4j就能進入它的官網，很容易找到；

這個時候啓動如果不報錯，那成功一半了；接下來就是配置實體類了，比如一個商城系統要對訂單建索引，實體類如（給出關鍵部分代碼）：

@Entity
@Indexed(index="shopOrders")
public class ShopOrders  implements java.io.Serializable {


    // Fields    

     @DocumentId
     private String id;
     private Integer uid;
     @Field(index=Index.TOKENIZED,store=Store.YES)
     private String username;
     @Field(index=Index.UN_TOKENIZED,store=Store.YES)
     private Integer isDelete;

這個時候啓動你會發現你指定的路徑下已經有了一個shopOrders文件夾，如果這個時候去搜索是搜索不到的，還沒有初始化數據；
以下是數據初始化和查詢的代碼：

import java.util.Date;
import java.util.List;

import org.apache.lucene.analysis.standard.StandardAnalyzer;
import org.apache.lucene.queryParser.MultiFieldQueryParser;
import org.apache.lucene.queryParser.QueryParser;
import org.apache.lucene.search.BooleanClause;
import org.apache.lucene.search.BooleanQuery;
import org.apache.lucene.search.Query;
import org.hibernate.CacheMode;
import org.hibernate.FlushMode;
import org.hibernate.ScrollMode;
import org.hibernate.ScrollableResults;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.search.FullTextQuery;
import org.hibernate.search.FullTextSession;
import org.hibernate.search.Search;
import org.springframework.orm.hibernate3.LocalSessionFactoryBean;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

import com.china.fung.hibernate.pojo.shop.ShopOrders;

public class Dao extends HibernateDaoSupport {

	private static SessionFactory sessionFactory;
	private static Session session = null;
	private static LocalSessionFactoryBean factoryBean = null;

	public void getMySession() throws Exception {
		sessionFactory = this.getHibernateTemplate().getSessionFactory();
		session = sessionFactory.openSession();
	}

	public List search(String keyword) throws Exception {
		this.getMySession();
		BooleanQuery.setMaxClauseCount(100000);
		BooleanQuery booleanQuery = new BooleanQuery();
		StandardAnalyzer analyzer=new StandardAnalyzer();
		// 基本關鍵詞搜索
		String[] searchFields = new String[] { "username" };//成員變量
		MultiFieldQueryParser queryParser = new MultiFieldQueryParser(
				searchFields,analyzer);
		queryParser.setDefaultOperator(QueryParser.Operator.AND);
		Query query = queryParser.parse(keyword);
		booleanQuery.add(query,BooleanClause.Occur.MUST);

		QueryParser parse=new QueryParser("isDelete",analyzer);
		Query query1=parse.parse("0");
		parse.setDefaultOperator(QueryParser.Operator.AND);
		booleanQuery.add(query1,BooleanClause.Occur.MUST);

		FullTextSession fullSession = Search.getFullTextSession(session);
		FullTextQuery fullQuery = fullSession.createFullTextQuery(booleanQuery,
				ShopOrders.class);
		int size = fullQuery.getResultSize();
		System.out.println("size:" + size);

		return fullQuery.list();
	}

	 public void createIndexByHibernateSearch() throws Exception{
		 this.getMySession();
		  long startTime = new Date().getTime();
		  int BATCH_SIZE = 1000;
		  FullTextSession s = Search.getFullTextSession(session);

		  // Transaction tr = s.beginTransaction();
		  s.setFlushMode(FlushMode.MANUAL);
		  s.setCacheMode(CacheMode.IGNORE);
		  ScrollableResults results = s.createQuery("from ShopOrders").setFetchSize(BATCH_SIZE).scroll(ScrollMode.FORWARD_ONLY);
		  int index = 0;
		  while (results.next()) {
		   index++;
		   s.index(results.get(0)); // index each element
		   if (index % BATCH_SIZE == 0) {
		    // s.flushToIndexes(); //apply changes to indexes
		    s.clear(); // clear since the queue is processed
		   }
		  }
		  s.clear();
		  long endTime = new Date().getTime();
		  logger.warn("建立Product索引 ， 這花費了" + (endTime - startTime) + " 毫秒來把文檔增加到索引裏面去!");
		  // tr.commit();

		 }


}

好了，到這基本就完事了，只需要在service裏調用就行了，別忘了，先調用createIndexByHibernateSearch方法初始化（一次就行），再調用search方法搜索；