osgi配置数据源bundle供其他bundle使用

1.创建plug-in project：

此bundle依赖jar包：

commons-dbcp-1.2.2.jar
commons-pool-1.3.jar
oracle-jdbc-10g.jar
spring-beans-2.5.6.jar
spring-dao-2.5.6.jar
spring-jdbc-2.5.6.jar

在META-INF下新建spring文件夹，并在文件夹里创建jdbc.xml，services-publish-cxf.xml

jdbc.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"
 default-autowire="byName">
 <!-- datasource -->
 <bean id="_dataSource"  class="com.thewebpagestudio.util.jdbc.BasicDataSource">
  <constructor-arg index="0"
   value="oracle.jdbc.driver.OracleDriver"></constructor-arg>
  <constructor-arg index="1"
   value="jdbc:oracle:thin:@192.168.0.57:1521:xe"></constructor-arg>
  <constructor-arg index="2" value="surfing_campus"></constructor-arg>
  <constructor-arg index="3" value="20100504"></constructor-arg>
 </bean>
</beans>

 

services-publish-cxf.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">
  
   <osgi:service id="dataSource" ref="_dataSource" interface="javax.sql.DataSource"></osgi:service>
</beans>

 

2。创建测试数据源的bundle：

bundle依赖包：

spring-beans-2.5.6.jar
spring-dao-2.5.6.jar
spring-jdbc-2.5.6.jar

新建测试类：

package com.oohla.test;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.jdbc.core.JdbcTemplate;

public class TestDataSource {
 
 public static final Log log = LogFactory.getLog(TestDataSource.class);

 private JdbcTemplate jdbcTemplate;

    public void setJdbcTemplate(JdbcTemplate jdbcTemplate) {
        this.jdbcTemplate = jdbcTemplate;
    }
 
 public void init() throws Exception{
  int count = jdbcTemplate.queryForInt("select count(*) from sms_log");
  log.info("count2222222222222222222222222" + count);
 }

}

 

在META-INF下新建spring文件夹，并在文件夹里创建beans.xml，services-reference-cxf.xml

beans.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" default-autowire="byName">
        
      <!-- 启动通话监听任务 -->
      <bean class="com.oohla.test.TestDataSource" init-method="init"></bean>
   
      <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate"/>
</beans>

 

<?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" default-autowire="byName">
   
    <osgi:reference id="dataSource" interface="javax.sql.DataSource" />                  
   
</beans>

 

注：如果运行过程中报：

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.oohla.test.TestDataSource#0' defined in URL [bundleentry://155.fwk7031149/META-INF/spring/beans.xml]: Invocation of init method failed; nested exception is org.springframework.aop.AopInvocationException: AOP configuration seems to be invalid: tried calling method [public abstract java.sql.Connection javax.sql.DataSource.getConnection() throws java.sql.SQLException] on target [com.thewebpagestudio.util.jdbc.BasicDataSource@c932df]; nested exception is java.lang.IllegalArgumentException: object is not an instance of declaring class 错误

这是由于 osgi加载机制的原因

 

解决方法：在jvm设置中添加-Dorg.osgi.framework.bootdelegation=*