distributed OSGI demo

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今天继续《OSGi原理与最佳实践》,看到第四章,做 HelloWorld-cxf 的例子

照着例子敲来着,整个例子敲完了,运行,一直报错,


----------------这里是解决方法------------------

Dictionary<String, String> props = new Hashtable<String, String>();        props.put("osgi.remote.interfaces", "*");        props.put("osgi.remote.configuration.type", "pojo");        props.put("osgi.remote.configuration.pojo.address", "http://localhost:9000/hello_world");                registration = bundleContext.registerService(HelloWorldServiceInterfaces.class.getName(),                                           new HelloWorldImple(), props);

把上面的内容改成下面


Dictionary<String, String> props = new Hashtable<String, String>();        <span style="color:#ff0000;">props.put("service.exported.interfaces", "*");        props.put("service.exported.configs", "org.apache.cxf.ws");        props.put("org.apache.cxf.ws.address", "http://localhost:9000/hello_world");</span>                registration = bundleContext.registerService(HelloWorldServiceInterfaces.class.getName(),                                           new HelloWorldImple(), props);

bundle配置如下,我没有单独到处servlet和osgi,直接用的eclipse里面的




---------------下面是故事,可以不看-------------------


不行,复制原来的代码直接贴过去(网上找的资源)还是一样。

各种缺包的提示,尝试着添加各种bundle,最后都要吐来了,还是提示缺,而且是越来越缺,完全一个无底洞。一定那里出问题了。


删除项目重新建,还好,这次不提示缺包了,这让我想起了,上一篇里面提到的,有可能是bundle以来问题,应该简单操作一下就行了,具体操作请查看

http://blog.csdn.net/q821424508/article/details/46604279


言归正传,说下今天的问题。

把项目弄好之后启动项目。没有错误提示,访问的时候抱404错误,控制台提示httpservice startup at 8080 ,这事什么意思,我代码里不是这么写的

Dictionary<String, String> props = new Hashtable<String, String>();        props.put("osgi.remote.interfaces", "*");        props.put("osgi.remote.configuration.type", "pojo");        props.put("osgi.remote.configuration.pojo.address", "http://localhost:9000/hello_world");                registration = bundleContext.registerService(HelloWorldServiceInterfaces.class.getName(),                                           new HelloWorldImple(), props);


这问题就来了,启动不报错,但是访问不到路径,一定还是那里配置错误,

亲,没错的,代码都是复制过来的。那问题可有可能是版本的问题,我的环境,cxf插件下载的事最新的cxf-dosgi-ri-singlebundle-distribution-1.2.jar,

osgi也是比书里面的新,


别问我为什么不按照书里面的版本弄,我也想,只是有些资源时找不到的。所以就按照自己eclipse的默认版本来了。


说到版本不同,那就找下官网吧,


Service Provider properties For Configuring SOAP-based services and consumers

Note: for backwards compatibility old values marked below are still supported.

Property Name

Data Type

Example

Description

service.exported.interfaces
(previously:osgi.remote.interfaces)

String

org.example.BarService,org.example.FooService*

Denotes the interfaces to be exposed remotely. This is a comma-separated list of fully qualified Java interfaces that should be made available remotely. A special value of * can be provided meaning that all of the interfaces passed to the BundleContext.registerService() call are suitable for remoting.

service.exported.configs (previously:osgi.remote.configuration.type)

String

org.apache.cxf.ws

Specifies the mechanism for configuring the service exposure. Possible values:

  • org.apache.cxf.ws (previously: pojo) the OSGi Service is exposed as a Web Service.
  • wsdl configuration driven from WSDL


这个事官网的,

Note: for backwards compatibility old values marked below are still supported.


这句翻译过来,应该是为了兼容老的功能,下面呗标记出来的依然支持吧,高中水平,不知道是不是这么翻译的。

但是按照翻译来说,我按照书上敲(别扣字眼,是复制来的我知道)的代码应该没问题



继续看 


org.apache.cxf.ws configuration type

When the service.exported.configs=org.apache.cxf.ws (or osgi.remote.configuration.type=pojo) property is specified, the following properties may also be specified.

突然来了一句,这句的大概意思是 如果service.exported.configs=org.apache.cxf.ws (or osgi.remote.configuration.type=pojo) 这个被指定了,

那么下面的也必须被设置,

我只能呵呵了 。


Property Name

Data Type

Example

Description

org.apache.cxf.ws.address
(previously:osgi.remote.configuration.pojo.address)

String

{{

http://localhost:9090/greeter

}}

The address at which the service with be made available remotely. If this property is not specified, this defaults to {{

http://localhost:9000/fully/qualified/ClassName

}}.

org.apache.cxf.ws.httpservice.context
(previously:osgi.remote.configuration.pojo.httpservice.context)

String

/auction

When this property is specified, the OSGi HTTP Service is used to expose the service, rather than a dedicated Jetty HTTP Server. This property doesn't allow the specification of a port number, as this is provided by the HTTP Service. The Distributed OSGi distributions come with Pax-Web, for which configuration information can be found here:

http://wiki.ops4j.org/display/paxweb/Configuration

, however other OSGi HTTP Service implementations are potentially configured differently.

org.apache.cxf.ws.frontend

String

jaxws

The CXF frontend which will be used to create endpoints. Defaults to 'simple' which is an Aegis-based simple frontend. Note that for JAXWS to work a javax.jws.* has to be imported into the interface and/or implementation and client bundles for annotations like @WebService and @WebMethod be recognized

org.apache.cxf.ws.databinding

String

jaxb

Supported values are 'aegis and 'jaxb', defaults to 'aegis'. Note that for JAXB to work JAXB packages like javax.xml.bind.annotation.* have to be imported

org.apache.cxf.ws.wsdl.location

String

/wsdl/service.wsdl

WSDL location

org.apache.cxf.ws.wsdl.service.ns

String

{{

http://services.org

}}

WSDL service namespace

org.apache.cxf.ws.wsdl.service.name

String

SoapService

WSDL service name

org.apache.cxf.ws.wsdl.port.name

String

SoapServicePort

WSDL port name

org.apache.cxf.ws.in.interceptors

String, String[], List

 

List of CXF in interceptors

org.apache.cxf.ws.out.interceptors

String, String[], List

 

List of CXF out interceptors

org.apache.cxf.ws.in.fault.interceptors

String, String[], List

 

List of CXF in fault interceptors

org.apache.cxf.ws.out.fault.interceptors

String, String[], List

 

List of CXF out fault interceptors

org.apache.cxf.ws.features

String, String[], List, Object

 

List of CXF out features

Service Provider properties For Configuring RESTful JAXRS-based endpoints and consumers

org.apache.cxf.rs configuration type

When the service.exported.configs=org.apache.cxf.rs property is specified, the following properties may also be specified.

Property Name

Data Type

Example

Description

org.apache.cxf.rs.address

String

{{

http://localhost:9090/greeter

}}

The address at which the service with be made available remotely. If this property is not specified, this defaults to {{

http://localhost:9000/fully/qualified/ClassName

}}.

org.apache.cxf.rs.httpservice.context

String

/auction

When this property is specified, the OSGi HTTP Service which is used to expose the service, rather than a dedicated Jetty HTTP Server. By default, absolute address may look like 'http://localhost:8080/auction'

org.apache.cxf.rs.provider

Boolean

true/false

Can be used to identify a global JAXRS provider as CXF-compatible

org.apache.cxf.rs.provider.expected

Boolean

true/false

Can be used to require global providers to set an 'org.apache.cxf.rs.provider' property with a value 'true'.

org.apache.cxf.rs.provider.globalquery

Boolean

true/false

Can be used to disable queries for global providers, defaults to 'true'.

org.apache.cxf.rs.databinding

String

aegis

This property has a limited value for JAXRS services as JAXB is supported by default, the only supported value is 'aegis' and it is a shortcut for registering an Aegis provider, see below for more information on how to register custom providers for JAXRS services

org.apache.cxf.rs.wadl.location

String

/wadl/service.wadl

WADL location

org.apache.cxf.rs.provider

String, String[], List

 

List of JAX-RS providers

org.apache.cxf.rs.in.interceptors

String, String[], List

 

List of CXF in interceptors

org.apache.cxf.rs.out.interceptors

String, String[], List

 

List of CXF out interceptors

org.apache.cxf.rs.in.fault.interceptors

String, String[], List

 

List of CXF in fault interceptors

org.apache.cxf.rs.out.fault.interceptors

String, String[], List

 

List of CXF out fault interceptors

org.apache.cxf.rs.features

String, String[], List

 

List of CXF out features




这么多,怎么设,算了,用最新的吧 

Dictionary<String, String> props = new Hashtable<String, String>();        props.put("service.exported.interfaces", "*");        props.put("service.exported.configs", "org.apache.cxf.ws");        props.put("org.apache.cxf.ws.address", "http://localhost:9000/hello_world");                registration = bundleContext.registerService(HelloWorldServiceInterfaces.class.getName(),                                           new HelloWorldImple(), props);


最新版的java代码是这样的,


能运行,能访问了,


我还是想吐糟一下,明明说要向下兼容,为什么要设置那么多额外的属性。


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