OSGi与Spring DM整合问题,会的帮忙看看

plutowang 2011-03-15 04:42:28
由于公司需要开始学习OSGI。看了些文档，想写个小型demo跑跑看，但是程序跑不起来。运行时出现错误。
希望有经验的朋友半忙看看，也在学习这东西的朋友一起交流一下。

环境 Equinox容器 + Spring dm 1.21

下面上具体代码




//计算的接口

package com.zjhcsoft.compute;



public interface Compute {

	public String comput(int x,int y);

}


接口的MANIFEST.MF文件



Manifest-Version: 1.0

Bundle-ManifestVersion: 2

Bundle-Name: Comput Plug-in

Bundle-SymbolicName: com.zjhcsoft.compute

Bundle-Version: 1.0.0

Bundle-Vendor: ZJHCSOFT

Eclipse-LazyStart: true

Import-Package: org.osgi.framework;version="1.3.0"

Export-Package: com.zjhcsoft.compute








//接口的实现类，加法

package com.zjhcsoft.add;



import com.zjhcsoft.compute.Compute;



public class ComputeAdd implements Compute{



	public String comput(int x, int y) {

		System.out.println("做了加法");

		return (x+y)+"";

	}



}


加法实现类的MANIFEST.MF文件



Manifest-Version: 1.0

Bundle-ManifestVersion: 2

Bundle-Name: Add Plug-in

Bundle-SymbolicName: com.zjhcsoft.add

Bundle-Version: 1.0.0

Bundle-Vendor: ZJHCSOFT

Eclipse-LazyStart: true

Import-Package: com.zjhcsoft.compute,

 org.osgi.framework;version="1.3.0"


注册加法的服务的配置文件 addService.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

	   ">

	   <bean id = "computeAdd" class="com.zjhcsoft.add.ComputeAdd" >

	   </bean>

	   <osgi:service id="computeAddService" interface="com.zjhcsoft.compute.Compute" ref="computeAdd" context-class-loader="service-provider"></osgi:service>

</beans>








//接口的实现类,减法



package com.zjhcsoft.mul;



import com.zjhcsoft.compute.Compute;



public class ComputeMul implements Compute {



	public String comput(int x, int y) {

		System.out.println("做了减法");

		return (x-y)+"";

	}



}


减法实现类的MANIFEST.MF文件



Manifest-Version: 1.0

Bundle-ManifestVersion: 2

Bundle-Name: Mul Plug-in

Bundle-SymbolicName: com.zjhcsoft.mul

Bundle-Version: 1.0.0

Bundle-Vendor: ZJHCSOFT

Eclipse-LazyStart: true

Import-Package: com.zjhcsoft.compute,

 org.osgi.framework;version="1.3.0"


注册减法服务的配置文件 mulService.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

	   ">

	   <bean id = "computeMul" class="com.zjhcsoft.mul.ComputeMul" >

	   </bean>

	   <osgi:service id="computeMulService" interface="com.zjhcsoft.compute.Compute" ref="computeMul" context-class-loader="service-provider"></osgi:service>

</beans>








//服务的消费者



package com.zjhcsoft.clent;



import com.zjhcsoft.compute.Compute;

public class Clent {

	public Clent(Compute compute){

		System.out.println(compute.comput(6,5));

	}

}


消费者的MANIFEST.MF文件




Manifest-Version: 1.0

Bundle-ManifestVersion: 2

Bundle-Name: Clent Plug-in

Bundle-SymbolicName: com.zjhcsoft.clent

Bundle-Version: 1.0.0

Bundle-Vendor: ZJHCSOFT

Eclipse-LazyStart: true

Import-Package: com.zjhcsoft.compute,

 org.osgi.framework;version="1.3.0"



//消费者的配置文件



<?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

	   ">

	   <bean id = "clent" class="com.zjhcsoft.clent.Clent">

	   	<constructor-arg ref="computeService">

	   	</constructor-arg>

	   </bean>

	   <osgi:reference id="computeService" interface="com.zjhcsoft.compute.Compute" cardinality="1..1" ></osgi:reference>

</beans>





下面是报错信息的一本分


严重: Pre refresh error

org.springframework.beans.factory.BeanDefinitionStoreException: Unexpected exception parsing XML document from URL [bundleentry://3470/META-INF/spring/reference.xml]; nested exception is java.lang.NullPointerException

	at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:406)

	at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:328)

	at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:296)

	at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:143)

	at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:178)

	at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:149)

	at org.springframework.osgi.context.support.OsgiBundleXmlApplicationContext.loadBeanDefinitions(OsgiBundleXmlApplicationContext.java:221)

	at org.springframework.osgi.context.support.OsgiBundleXmlApplicationContext.loadBeanDefinitions(OsgiBundleXmlApplicationContext.java:130)

	at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:123)

	at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:423)

	at org.springframework.osgi.context.support.AbstractDelegatedExecutionApplicationContext.startRefresh(AbstractDelegatedExecutionApplicationContext.java:191)

	at org.springframework.osgi.extender.internal.dependencies.startup.DependencyWaiterApplicationContextExecutor.stageOne(DependencyWaiterApplicationContextExecutor.java:212)

	at org.springframework.osgi.extender.internal.dependencies.startup.DependencyWaiterApplicationContextExecutor.refresh(DependencyWaiterApplicationContextExecutor.java:163)

	at org.springframework.osgi.context.support.AbstractDelegatedExecutionApplicationContext.refresh(AbstractDelegatedExecutionApplicationContext.java:125)

	at org.springframework.osgi.extender.internal.ContextLoaderListener$2.run(ContextLoaderListener.java:630)

	at java.lang.Thread.run(Thread.java:595)

Caused by: java.lang.NullPointerException

	at org.apache.xerces.impl.xs.traversers.XSDAttributeTraverser.traverseLocal(Unknown Source)

	at org.apache.xerces.impl.xs.traversers.XSDAbstractTraverser.traverseAttrsAndAttrGrps(Unknown Source)

	at org.apache.xerces.impl.xs.traversers.XSDComplexTypeTraverser.processComplexContent(Unknown Source)

	at org.apache.xerces.impl.xs.traversers.XSDComplexTypeTraverser.traverseComplexTypeDecl(Unknown Source)

	at org.apache.xerces.impl.xs.traversers.XSDComplexTypeTraverser.traverseLocal(Unknown Source)

	at org.apache.xerces.impl.xs.traversers.XSDElementTraverser.traverseNamedElement(Unknown Source)

	at org.apache.xerces.impl.xs.traversers.XSDElementTraverser.traverseGlobal(Unknown Source)

	at org.apache.xerces.impl.xs.traversers.XSDHandler.traverseSchemas(Unknown Source)

	at org.apache.xerces.impl.xs.traversers.XSDHandler.parseSchema(Unknown Source)

	at org.apache.xerces.impl.xs.XMLSchemaLoader.loadSchema(Unknown Source)

	at org.apache.xerces.impl.xs.XMLSchemaValidator.findSchemaGrammar(Unknown Source)

	at org.apache.xerces.impl.xs.XMLSchemaValidator.handleStartElement(Unknown Source)

	at org.apache.xerces.impl.xs.XMLSchemaValidator.startElement(Unknown Source)

	at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown Source)

	at org.apache.xerces.impl.XMLNSDocumentScannerImpl$NSContentDispatcher.scanRootElementHook(Unknown Source)

	at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)

	at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)

	at org.apache.xerces.parsers.DTDConfiguration.parse(Unknown Source)

	at org.apache.xerces.parsers.DTDConfiguration.parse(Unknown Source)

	at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)

	at org.apache.xerces.parsers.DOMParser.parse(Unknown Source)

	at org.apache.xerces.jaxp.DocumentBuilderImpl.parse(Unknown Source)

	at org.springframework.beans.factory.xml.DefaultDocumentLoader.loadDocument(DefaultDocumentLoader.java:75)

	at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:382)

	... 15 more

2011-3-15 16:32:56 org.springframework.osgi.extender.internal.dependencies.startup.DependencyWaiterApplicationContextExecutor fail















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beeno 2011-08-24
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我也在做这东西啊。。不懂
plutowang 2011-03-16
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....沉了自己顶下、、、
plutowang 2011-03-15
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补充下虽然出现了错误但是程序依然能够运行
plutowang 2011-03-15
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纠结了很长时间不知道是为什么错希望会的朋友帮我纠正下，先谢谢了。
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