WebService Dubbo (definition of service, supplier, consumer)

Prerequisite Preparation:

Before this experiment, you need to prepare a few packages:

• In spring, AOP, beans, context, core, expression, and commons-logging, javassist in struts are all designed to support configuration and run without error:

For this sentence: classpathxmlapplicationcontext context = new Classpathxmlapplicationcontext ("Provider.xml");

• Dubbo packages and Netty are mandatory packages for Dubbo services
• Ssssssss.jar is the API service of its own definition

I. Defining services (API)

　　

Define an interface Gservice:

Enter parameter: String

return value: String

 Package Com.dubbo.zz;  Public Interface Gservice {    string SayHello (string name);}

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Second, registered suppliers

The project result diagram is as follows:

　　

Gserviceimpl.java:

 Package Com.dubbo.provider; Import Com.dubbo.zz.GService;  Public class Implements Gservice {            public  string SayHello (string name) {                return ' Hello ' + name;}    }

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Provider.java:

 package   Com.dubbo.provider;  import   Org.springframework.context.support.ClassPathXmlApplicationContext;  public  class   Provider { static  void  main (string[] args) throws   Exception {Classpathxmlapplicationcontext context  = new  classpathxmlapplicationcontext ("Provider.xml" );        SYSTEM.OUT.PRINTLN ( "Service has startup" 

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Provider.xml:

<?XML version= "1.0" encoding= "UTF-8"?><Beansxmlns= "Http://www.springframework.org/schema/beans"Xmlns:xsi= "Http://www.w3.org/2001/XMLSchema-instance"Xmlns:dubbo= "Http://code.alibabatech.com/schema/dubbo"xsi:schemalocation= "Http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/ Spring-beans-2.5.xsd Http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd ">     <!--provider app information for calculating dependencies -    <dubbo:applicationname= "SDFSD"/>     <!--exposing a service address using the Multicast Broadcast Registration center -    <Dubbo:registryAddress= "multicast://224.5.6.7:1234" />     <!--exposing services on 20880 ports with the Dubbo protocol -    <Dubbo:protocolname= "Dubbo"Port= "20880" />     <!--declaring a service interface that needs to be exposed -    <Dubbo:serviceInterface= "Com.dubbo.zz.GService"ref= "Demoservice" />     <!--services like local beans -    <BeanID= "Demoservice"class= "Com.dubbo.provider.GServiceImpl"/> </Beans>

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Run results

　　

　　

Third, the consumer (can be an interface tester, can also be a service caller)

Note: For debugging purposes, an Eclipse application can be used as an alternative.

Project result diagram:

　　

　　

Consumer.xml:

<?XML version= "1.0" encoding= "UTF-8"?><Beansxmlns= "Http://www.springframework.org/schema/beans"Xmlns:xsi= "Http://www.w3.org/2001/XMLSchema-instance"Xmlns:dubbo= "Http://code.alibabatech.com/schema/dubbo"xsi:schemalocation= "Http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/ Spring-beans-2.5.xsd Http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd ">     <!--provider app information for calculating dependencies -    <dubbo:applicationname= "Consum"/>     <!--exposing a service address using the Multicast Broadcast Registration center -    <Dubbo:registryAddress= "multicast://224.5.6.7:1234" />    <!--generate a remote service proxy that can be used like a local bean demoservice -    <dubbo:referenceID= "Demoservice"Interface= "Com.dubbo.zz.GService" /> </Beans>

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Testservices.java:

 PackageCom.dubbo.consumer;ImportOrg.springframework.context.support.ClassPathXmlApplicationContext;ImportCom.dubbo.zz.GService; Public classtestservices { Public Static voidMain (string[] args) {Classpathxmlapplicationcontext context=NewClasspathxmlapplicationcontext ("Consumer.xml"); System.out.println ("Consumer has a startup"); Gservice Service= (Gservice) context.getbean ("Demoservice"); String Str=service.sayhello ("FJSDFSD");    System.out.println (str); }}

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Run results

　　

　

At this point, the demonstration is complete, thank you. Please specify the source when reproduced, thank you: http://www.cnblogs.com/shoubianxingchen/p/4308229.html

This is a Dubbo entry-level presentation, and there's a lot more behind it.

WebService Dubbo (definition of service, supplier, consumer)