Spring Support for remote services

　　the Java program has the following remote invocation technology options:

The Remote Procedure call (RPC) is synchronous and the client is blocked until the server returns the results.

The following scenarios apply to various technologies:

The typical RMI development process is as follows:

1. Define an interface for client and server-side interaction, and the interface inherits the remote interface, and all methods are thrown remoteexception.
2. Write the server-side implementation to implement the interface written in the first step.
3. Write a registration class that registers the implementation of a server-side class based on an IP and Port ( By default , 1099) .
4. Write a call to the client, based on the IP, Port, and registered name to find the corresponding class on the server side.
5. RMI supports passing objects that require the object to implement the serializable interface.

Here is the spring support for RMI, and the configuration is simple:

One: Server-side

1. Interface of the service to expose:

 Package Com.excellence.webservice; Import java.util.List;  Public Interface Accountservice {    publicvoid  insertaccount;      Public List getaccounts (String name);}

　　

 package   Com.excellence.webservice;  import   java.util.List;  public  class     Accountserviceimpl implements   Accountservice {  public  void   Insertaccount (account account) {System.out.println ( "inser!"    );         public   List getaccounts (String name) {        System.out.println ( "Get" );  return  null  ; }}

　　

3. Publish the interface to RMI in the configuration file

class class= "Org.springframework.remoting.rmi.RmiServiceExporter" >    <property name= "ServiceName" Value= "Accountservice" ></property>    <property name= "service" ref= "Accountservice" ></ property>    <property name= "serviceinterface"          value= "Com.excellence.webservice.AccountService" > </property>    <property name= "Registryport" value= "1199" ></property></bean>

4. Run the RMI:

 Public class Demo {publicstaticvoid  main (string[] args) {    new Filesystemxmlapplicationcontext ("Classpath:applicationContext.xml");     = (Rmiserviceexporter) ctx.getbean ("service");}    }

Second, the client

　　1. Configure in the configuration file:

class= "Org.springframework.remoting.rmi.RmiProxyFactoryBean" >    <property name= "serviceurl" Value= "Rmi://localhost:1199/accountservice" ></property>    <property name= "Serviceinterface"     Value= "Com.excellence.webservice.AccountService" ></property></bean>

 Public Static void Main (string[] args) {    new filesystemxmlapplicationcontext    ("Classpath: Applicationcontext.xml ");     = (Accountservice) ctx.getbean ("Accclient");    Service.insertaccount (new Account ());    Service.getaccounts ("DD");}

Spring Support for remote services