一个简单的例子学习hessian服务：服务端为Java，客户端为C#。
　　先要准备好C#和Java的第三方类库：http://hessian.caucho.com/
　　Hssiancharp.dll
　　hessian-4.0.37.jar
　　Hessian服务端（java）
　　打开eclipse创建一个Dynamic Web Project，将hessian-4.0.37.jar放到lib下，大概如图所示：

　　创建一个通信接口IHello：
package hessian.test.server;
import java.util.ArrayList;
public interface IHello {
String sayHello(String msg);
void sayHello2(int bean);
void print(String msg);
HelloBean getData(HelloBean bean);
ArrayList<HelloBean> getBeanList();
ComplexData getComplexData();
}
    IHello接口的一个实现：HelloImpl.java
package hessian.test.server;
import java.util.ArrayList;
public class HelloImpl implements IHello{
public String sayHello(String msg){
return "Hello " + msg;
}
public void sayHello2(int bean){
System.out.println("Hello " + bean);
}
public void print(String msg){
System.out.println(msg);
}
public HelloBean getData(HelloBean bean){
HelloBean result = new HelloBean();
result.setName("lu xiaoxun a new name");
result.setAge(26);
System.out.print(bean.getName());
return result;
}
public ArrayList<HelloBean> getBeanList(){
ArrayList<HelloBean> beans = new ArrayList<HelloBean>();
HelloBean b1 = new HelloBean();
b1.setName("lu1");
b1.setAge(26);
beans.add(b1);
HelloBean b2 = new HelloBean();
b2.setName("lu2");
b2.setAge(27);
beans.add(b2);
return beans;
}
public ComplexData getComplexData(){
ComplexData data = new ComplexData();
ArrayList<HelloBean> beans = getBeanList();
data.setData(beans， beans.size());
return data;
}
}