| Blog信息 |
|
blog名称:
日志总数:1304
评论数量:2242
留言数量:5
访问次数:7593729
建立时间:2006年5月29日 |
| |
|
 [OpenSymphony]一个简单的COMPASS应用
软件技术
lhwork 发表于 2007/1/25 9:38:41 |
| 首先你要下载Compass framework: Download Compass. 你需要在你的class path 中添加4个jarcompass-x/modules/core/compass-core-x.jar, compass/modules/core/lib/commons-logging-x.jar, compass-x/modules/core/lib/log4j-x.jar, compass-x/modules/core/lib/lucene-core-x-rc1-dev.jar. 在你的项目中创建下面的目录(可以根据自己的定义来改动)：log4j.properties - org - compassframework - sample - example alias.cmd.xml compass.cfg.xml CompassExample.java Phrase.cpm.xml Phrase.java 下面说一下几个重要的配置文件
compass.cfg.xmlcode
指定的target/index 是一个存储目录放索引文件的（这个类必须有个无参数的构造和id属性）
xml 代码
<!--CTYPE compass-core-configuration PUBLIC"-//Compass/Compass Core Configuration DTD 1.0//EN" </sp-->
"http://static.compassframework.org/dtd/compass-core-configuration-1.0.dtd">
<
compass-core-configuration>
<compass>
<setting name="compass.engine.connection">target/indexsetting>
<meta-data resource="org/compassframework/sample/example/alias.cmd.xml" />
compass>
compass-core-configuration>
alias.cmd.xml:
xml 代码
<!--sp-->
xml version="1.0"?>
<!--CTYPE compass-core-meta-data PUBLIC </sp-->
"-//Compass/Compass Core Meta Data DTD 1.0//EN"
"http://static.compassframework.org/dtd/compass-core-meta-data-1.0.dtd">
<compass-core-meta-data>
<meta-data-group id="example" displayName="Example Meta Data">
<description>Example Meta Datadescription>
<uri>http://compass/exampleuri>
<alias id="phrase" displayName="Phrase">
<description>Phrase aliasdescription>
<uri>http://compass/example/phraseuri>
<name>phrasename>
alias>
<meta-data id="author" displayName="Author">
<description>Author aliasdescription>
<uri>http://compass/example/authoruri>
<name>authorname>
meta-data>
<meta-data id="text" displayName="Text">
<description>Text aliasdescription>
<uri>http://compass/example/texturi>
<name>textname>
meta-data>
meta-data-group>
compass-core-meta-data>
Phrase.java
java 代码
package org.compassframework.sample.example;
public class Phrase {
private String author;
private String text;
private Long id;
public Phrase() {
}
public String getAuthor() {
return author;
}
public void setAuthor(String author) {
this.author = author;
}
public String getText() {
return text;
}
public void setText(String text) {
this.text = text;
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String toString() {
return text;
}
}
Phrase.cpm.xml
xml 代码
<!--sp-->xml version="1.0"?>
<!--CTYPE compass-core-mapping PUBLIC </sp-->
"-//Compass/Compass Core Mapping DTD 1.0//EN"
"http://static.compassframework.org/dtd/compass-core-mapping-1.0.dtd">
<compass-core-mapping package="org.compassframework.sample.example">
<class name="Phrase" alias="${example.phrase}">
<id name="id" />
<property name="author">
<meta-data>${example.author}meta-data>
property>
<property name="text">
<meta-data>${example.text}meta-data>
property>
class>
compass-core-mapping> CompassExample.java
java 代码
package org.compassframework.sample.example;
import org.apache.log4j.Logger;
import org.compassframework.core.Compass;
import org.compassframework.core.Compass;
import org.compassframework.core.CompassSession;
import org.compassframework.core.CompassTransaction;
import org.compassframework.core.config.CompassConfiguration;
public class CompassExample {
private static final Logger logger = Logger.getLogger(CompassExample.class);
private compasscompass;
public static void main(String[] args){
new CompassExample().process();
}
private void process(){
CompassConfiguration config = new CompassConfiguration();
config.configure("org/compassframework/sample/example/compass.cfg.xml");
config.addClass(Phrase.class);
compass = config.buildCompass();
compass.getSearchEngineIndexManager().deleteIndex();
compass.getSearchEngineIndexManager().createIndex();
createIndex();
search("mule AND crazy");
search("Marisol OR Ramon");
}
private void createIndex(){
CompassSession session = compass.openSession();
CompassTransaction tx = session.beginTransaction();
Phrase phrase = new Phrase();
phrase.setAuthor("Joe");
phrase.setText("I don't think it's nice you laughing. " +
"You see my mule don't like people laughing. " +
"He gets the crazy idea you're laughing at him. " +
"Now if you apologize like I know you're going to, " +
"I might convince him that you really didn't mean it...");
phrase.setId(new Long(1));
session.save(phrase);
tx.commit();
session.close();
}
private void search(String query){
CompassSession session = compass.openSession();
CompassTransaction tx = session.beginTransaction();
Compass hits = session.find(query);
if (logger.isDebugEnabled()) {
logger.debug("search() - Found " + hits.getLength()+" hits for \""+query+"\"");
}
for (int i = 0; i < hits.getLength(); i++) {
print(hits, i);
}
hits.close();
tx.commit();
session.close();
compass.close();
}
private void print(Compass hits, int hitNumber) {
Phrase value = (Phrase)hits.data(hitNumber);
if (logger.isDebugEnabled()) {
logger.debug("print() - Phrase by " + value.getAuthor() + ": "
+ value.getText());
}
}
}
为了保证能打印出我们的测试，需要加入log4j.properties ：log4j.rootLogger=ERROR, stdout log4j.appender.stdout=org.apache.log4j.ConsoleAppender log4j.appender.stdout.layout=org.apache.log4j.PatternLayout log4j.appender.stdout.layout.ConversionPattern=%d %p %c - %m%n log4j.logger.org.compassframework.sample.example=DEBUG 下面是打印出来的测试结果：search() - Found 1 hits for "mule AND crazy" print() - Phrase by Joe: I don't think it's nice you laughing...search() - Found 0 hits for "Marisol OR Ramon" |
|
|