The path of Java learning-spring Httpinvoker Learning

Both Hessian and burlap are HTTP-based, and they all address the problem of the firewall penetration of RMI headaches. But when a serialized object is included in the RPC message passed in, RMI is Hessian and burlap.
Because Hessian and burlap both adopt a private serialization mechanism, RMI uses the serialization mechanism of Java itself. If the data model is very complex, then the HESSIAN/BURLAP serialization model may not be sufficient.
The Spring development team realized the gap before the RMI service and HTTP-based services, and Spring's httpinvoker was born.
Spring's Httpinvoker, which provides RPC on top of HTTP, while also using the Java object Serialization mechanism.

Specific implementation of the program
First, we create an entity class, and implement the Serializable interface

 Packageentity;Importjava.io.Serializable; Public classFruitImplementsSerializable {PrivateString name; PrivateString color;  PublicString GetName () {returnname; }     Public voidsetName (String name) { This. Name =name; }     PublicString GetColor () {returncolor; }     Public voidsetcolor (String color) { This. color =color; }}

Second, create an interface

 Package Service; Import java.util.List; Import entity. Fruit;  Public Interface Fruitservice {    List<Fruit> getfruitlist ();}

Third, create a class, and implement the interface in step two

 PackageService.impl;Importjava.util.ArrayList;Importjava.util.List;Importservice. Fruitservice;Importentity. Fruit; Public classFruitserviceimplImplementsFruitservice { PublicList<fruit>getfruitlist () {List<Fruit> list =NewArraylist<fruit>(); Fruit F1=NewFruit (); F1.setname (Orange); F1.setcolor (Yellow); Fruit F2=NewFruit (); F2.setname (Apple); F2.setcolor (Red);        List.add (F1);        List.add (F2); returnlist; }}

Iv. Configuring SPRINGMVC required information in Web. XML under Web-inf

<Context-param>    <Param-name>Contextconfiglocation</Param-name>    <Param-value>Classpath:applicationContext.xml</Param-value></Context-param><Listener>    <Listener-class>Org.springframework.web.context.ContextLoaderListener</Listener-class></Listener><servlet>    <Servlet-name>Springmvc</Servlet-name>    <Servlet-class>Org.springframework.web.servlet.DispatcherServlet</Servlet-class>    <Load-on-startup>1</Load-on-startup></servlet><servlet-mapping>    <Servlet-name>Springmvc</Servlet-name>    <Url-pattern>/</Url-pattern></servlet-mapping> 

V. Configuring bean information to export the service in Applicationcontext.xml

<BeanID= "Furitservice"class= "Service.impl.FruitServiceImpl"></Bean><BeanID= "Furitservice"class= "Org.springframework.remoting.httpinvoker.HttpInvokerServiceExporter"P:serviceinterface= "service. Fruitservice "P:service-ref= "Furitservice" /> 

VI. Create the Springmvc-servlet.xml file under Web-inf and configure the UrlMapping

<?XML version= "1.0" encoding= "UTF-8"?><Beansxmlns= "Http://www.springframework.org/schema/beans"Xmlns:xsi= "Http://www.w3.org/2001/XMLSchema-instance"xmlns:p= "http://www.springframework.org/schema/p"xsi:schemalocation= "Http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">    <BeanID= "UrlMapping"class= "Org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">        < Propertyname= "Mappings">            <Props>                <propKey= "/fruitservice">Furitservice</prop>            </Props>        </ Property>    </Bean></Beans> 

Vii. Bean information required to obtain service in Applicationcontext.xml writing client

<id= "Getfruitservice"    class= " Org.springframework.remoting.httpinvoker.HttpInvokerProxyFactoryBean "    p:serviceinterface = "service. Fruitservice "    p:serviceurl=" Http://localhost:8080/SpringHttpInvoker/fruitService "  />

Eight, write test code

 Packagetest;Importjava.util.List;ImportOrg.springframework.context.ApplicationContext;ImportOrg.springframework.context.support.ClassPathXmlApplicationContext;Importentity. Fruit;Importservice. Fruitservice; Public classTest { Public Static voidMain (string[] args) {ApplicationContext ctx=NewClasspathxmlapplicationcontext ("Applicationcontext.xml"); Fruitservice Fruitservice=(Fruitservice) ctx. Getbean ("Getfruitservice"); List<Fruit> fruitlist =fruitservice.getfruitlist ();  for(Fruit fruit:fruitlist) {System.out.println (Fruit.getcolor ()+ "of" +fruit.getname ()); }    }}

Deploy the project to Tomcat, start the Tomcat service, and run the test code
=========== Console ========

Yellow oranges.
Red apples.

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The path of Java learning-spring Httpinvoker Learning