hessian是个轻量级的玩意，介绍为：http://hessian.caucho.com/doc/hessian-overview.xtp
一个典型的例子如下，先建立web工程
接口如下：
package hessian;
public interface IBasic {
/**
* 测试字符串
* @return
*/
public String hello();
/**
* 取一辆汽车 测试对象传递
* @return
*/
public Car getCar();
}
实现：
package hessian;
public class BasicService implements IBasic {
private String hello= "Hello, world";
public String hello()
{
return hello;
}
public Car getCar() {
Car car = new Car();
car.setColor("RED红色");
car.setLength("2400");
car.setName("HAHACHE");
return car;
}
}
注意car中要实现序列化，否则出错
package hessian;
import java.io.Serializable;
public class Car implements Serializable {
private String color;
private String length;
private String name;
public String getColor() {
return color;
}
public void setColor(String color) {
this.color = color;
}
public String getLength() {
return length;
}
public void setLength(String length) {
this.length = length;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
客户端:
package hessian;
import com.caucho.hessian.client.HessianProxyFactory;
public class BasicClient {
public static void main(String []args)
throws Exception
{
String url = "http://localhost:8085/HessianDemo1/hello";
HessianProxyFactory factory = new HessianProxyFactory();
IBasic basic = (IBasic) factory.create(IBasic.class, url);
Car car = basic.getCar();
System.out.println("Hello: " + basic.hello());
System.out.println("Hello: " + car.getName());
}
}
web.xml:
<web-app version="2.4"
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>hello</servlet-name>
<servlet-class>com.caucho.hessian.server.HessianServlet</servlet-class>
<init-param>
<param-name>home-class</param-name>
<param-value>hessian.BasicService</param-value>
</init-param>
<init-param>
<param-name>home-api</param-name>
<param-value>hessian.IBasic</param-value>
</init-param>
</servlet>