轉(zhuǎn)載請注明出處 http://www.aygfsteel.com/fireflyk/archive/2011/09/18/358922.html
網(wǎng)上找了很多例子，看了很多資料發(fā)現(xiàn)都不能完全重現(xiàn)一個(gè)OSGi的Web Demo
本文結(jié)合了《OSGi原理與最佳實(shí)踐》+公司同事的《OSGi開發(fā)》+自己的理解。
環(huán)境WindowXP + eclipse3.4 + Spring OSGi1.2.1
1. 創(chuàng)建timeservice Bundle，提供輸出時(shí)間的功能
1.1 eclipse內(nèi)創(chuàng)建Maven Project，選quickstart project：timeservice，package org.osgichina.demo.timeservice
1.2 創(chuàng)建好后，remove maven的jar包，刪掉project中的App和AppTest，在項(xiàng)目上右鍵->PDE Tools->Convert
1.3
package org.osgichina.demo.timeservice;
public interface TimeService {
String getCurrentTime();
}
public class TimeServiceImpl implements TimeService {
public String getCurrentTime() {
return (new Date()).toString();
}
}
1.4 Spring配置
配置放在META-INF/spring目錄下，框架啟動時(shí)會按照這個(gè)路徑去尋找配置文件
timeservice.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
<!-- timeService bean -->
<bean name="timeService" class="org.osgichina.demo.timeservice.impl.TimeServiceImpl" />
</beans>
timeservice-osgi.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:osgi="http://www.springframework.org/schema/osgi"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/osgi http://www.springframework.org/schema/osgi/spring-osgi.xsd">
<!-- 將timeService 這個(gè)bean發(fā)布為OSGi服務(wù)的定義-->
<osgi:service id="osgiTimeService" ref="timeService" interface="org.osgichina.demo.timeservice.TimeService">
</osgi:service>
</beans>
這個(gè)Bundle到此已經(jīng)完成了，下一節(jié)會講解helloworldweb Bundle，涉及Import Package，OSGi的啟動，Spring+Web的配置等
專注于Java，數(shù)據(jù)庫性能，Web Server負(fù)載，數(shù)據(jù)挖掘，機(jī)器學(xué)習(xí)等方向
posted on 2011-09-18 21:13
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