基于Compass2.2与Spring 结合建立索引的实例

本实例建立在ssh结构下，利用compass2.2。

1 要建立的索引类(只要是POJO的实体类就可以）

package com.cgb.ky.resources.model;
public class ProjectApply implements java.io.Serializable {

private String id;

   //项目名称
private String projectName="";
//申请人姓名
private String realName="";

//国内外现状
private String statusOf="";

//主要研究内容(研究内容提要)
private String mainContent="";

//要达到的目标、成果形式及主要技术指标
private String reachObject="";

//前期工作基础
private String beforeWork="";

......

}

2.建立mycompass.cmd.xml文件

<?xml version="1.0"?>

<!DOCTYPE compass-core-meta-data PUBLIC
"-//Compass/Compass Core Meta Data DTD 2.2//EN"
"http://www.compass-project.org/dtd/compass-core-meta-data-2.2.dtd">

<compass-core-meta-data>

3.建立mycompass.cpm.xml文件

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE compass-core-mapping PUBLIC
"-//Compass/Compass Core Mapping DTD 2.2//EN"
"http://www.compass-project.org/dtd/compass-core-mapping-2.2.dtd">

<compass-core-mapping package="com.cgb.ky.resources.model">


<class name="ProjectApply" alias="${mycompass.ProjectApply}">
<id name="id" />
<property name="projectName">
<meta-data >${mycompass.projectName}</meta-data>
</property>
<property name="projectTypeName">
<meta-data >${mycompass.projectTypeName}</meta-data>
</property>
<property name="realName">
<meta-data >${mycompass.realName}</meta-data>
</property>
<property name="statusOf">
<meta-data >${mycompass.statusOf}</meta-data>
</property>
<property name="mainContent">
<meta-data >${mycompass.mainContent}</meta-data>
</property>
</class>
</compass-core-mapping>

4.建立mycommpass.cfg.xml文件

<?xml version="1.0" encoding="UTF-8"?>
<compass-core-config xmlns="http://www.compass-project.org/schema/core-config"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.compass-project.org/schema/core-config
          http://www.compass-project.org/schema/compass-core-config-2.2.xsd">
<compass name="default">
<connection>
<file path="target" />
</connection>
<searchEngine>

      <analyzer name="ChineseAnalyzer" type="CustomAnalyzer" analyzerClass="org.apache.lucene.analysis.cn.ChineseAnalyzer">
        <stopWords>
            <stopWord value="test" />
        </stopWords>
      </analyzer>


    </searchEngine>
</compass>
</compass-core-config>
5.修改applicationContext.xml文件，添加如下内容

<bean id="compass" class="org.compass.spring.LocalCompassBean">
        <property name="resourceLocations">
            <list>
                <value>classpath:mycompass.cmd.xml</value>
                <value>classpath:mycompass.cpm.xml</value>
            </list>
        </property>
        <property name="compassSettings">
            <props>
                <prop key="compass.engine.connection">D:/index</prop>
                <prop key="compass.transaction.factory">org.compass.spring.transaction.SpringSyncTransactionFactory</prop>
            </props>
        </property>

        <property name="configLocation">
    <value>classpath:mycompass.cfg.xml</value>
  </property>
       <property name="transactionManager">
            <ref local="txManager" />
        </property>
    </bean>
    <bean id="hibernateGpsDevice" class="org.compass.gps.device.hibernate.HibernateGpsDevice">
      <property name="name"><value>hibernateDevice</value></property>
      <property name="sessionFactory"><ref local="sessionFactory" /></property>
      <property name="nativeExtractor"><bean class="org.compass.spring.device.hibernate.SpringNativeHibernateExtractor" /></property>
    </bean>
<bean id="compassGps" class="org.compass.gps.impl.SingleCompassGps" init-method="start" destroy-method="stop">
    <property name="compass"><ref bean="compass" /></property>
    <property name="gpsDevices">
      <list>
             <ref bean="hibernateGpsDevice" />
      </list>
    </property>
</bean>

    
   <bean id="compassIndexBuilder"
       class="com.cgb.compass.index.CompassIndexBuilder"
        lazy-init="false">
       <property name="compassGps" ref="compassGps" />
        <property name="buildIndex" value="true" />
        <property name="lazyTime" value="5" />
   </bean>

6.建立IOC.java Index.java Search.java文件如下

IOC.java

package com.cgb.compass.index;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class IOC {
private static ApplicationContext context = null;
private static boolean isInit = false;
private IOC() {
super();
}
private static void init() {
if (isInit == false) {
   String[] xmlfilenames = { "applicationContext.xml" };
   context = new ClassPathXmlApplicationContext(xmlfilenames);
   isInit = true;
}
}
/**
*
* @return
*/
public static ApplicationContext getContext() {
if (context == null || isInit == false) {
   init();
}
return context;
}
/**
*
* @param name
* @return
*/
public static Object getBean(String name) {
return getContext().getBean(name);
}
}

index.java

package com.cgb.compass.index;

import java.io.FileNotFoundException;

import org.compass.gps.CompassGps;
import org.springframework.context.ApplicationContext;

public class Index {

/**
* @param args
*/
public static void main(String[] args) throws FileNotFoundException {
  // TODO Auto-generated method stub
  // 加裁自定义词典
  //Dictionary.loadCustomDictionary();

  ApplicationContext context = IOC.getContext();
  // 得到spring环境中已经配置和初始化好的compassGps对象
  CompassGps compassGps = (CompassGps) context.getBean("compassGps");
  // 调用index方法建立索引
  compassGps.index();
}

}
Search.java

package com.cgb.compass.index;

import java.io.FileNotFoundException;

import org.compass.core.Compass;
import org.compass.core.CompassCallbackWithoutResult;
import org.compass.core.CompassException;
import org.compass.core.CompassHits;
import org.compass.core.CompassSession;
import org.compass.core.CompassTemplate;
import org.compass.core.Resource;
import org.springframework.context.ApplicationContext;

import com.cgb.ky.resources.model.ProjectApply;

public class Searcher {

/**
* @param args
*/
public static void main(String[] args) throws FileNotFoundException {
  // 加裁自定义词典
  //DictionaryUtils.loadCustomDictionary();
  ApplicationContext context = IOC.getContext();
  Compass compass = (Compass) context.getBean("compass");

  CompassTemplate template = new CompassTemplate(compass);
  template.execute(new CompassCallbackWithoutResult() {
    protected void doInCompassWithoutResult(CompassSession session)
    throws CompassException {

    CompassHits hits = session.find("钢铁");
    System.out.println("Found [" + hits.getLength()
      + "] hits for [钢铁] query");
    System.out
      .println("======================================================");
    ProjectApply pa = new ProjectApply();
    for (int i = 0; i < hits.getLength(); i++) {
  // print(hits, i);
     pa = (ProjectApply)hits.data(i);
     System.out.println(pa.getProjectName());
    }
    hits.close();
    }
  });
  }
  public static void print(CompassHits hits, int hitNumber) {
  Object value = hits.data(hitNumber);
  Resource resource = hits.resource(hitNumber);
  System.out.println("ALIAS [" + resource.getAlias() + "] SCORE ["
    + hits.score(hitNumber) + "]");
  System.out.println(":::: " + value);
  System.out.println("");
  }

}
按照以上建立，没错误后，先运行Index.java再运行search.java文件则可。

注意的是：xml配置文件中xmlns ，xsi:schemaLocation等引用要准确，不然会报错。

基于Compass2.2与Spring 结合建立索引的实例

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