项目结构例如以下：

pom.xml 内容：

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">

	<modelVersion>4.0.0</modelVersion>

	<groupId>com.lala</groupId>

	<artifactId>hessian-web</artifactId>

	<packaging>war</packaging>

	<version>1.0.0</version>

	<name>hessian-web Maven Webapp</name>

	<url>http://maven.apache.org</url>

	<dependencies>

		<dependency>

			<groupId>junit</groupId>

			<artifactId>junit</artifactId>

			<version>4.10</version>

			<scope>test</scope>

		</dependency>

		<dependency>

			<groupId>javax.servlet</groupId>

			<artifactId>jsp-api</artifactId>

			<version>2.0</version>

			<scope>provided</scope>

		</dependency>

		<dependency>

			<groupId>javax.servlet</groupId>

			<artifactId>javax.servlet-api</artifactId>

			<version>3.0.1</version>

			<scope>provided</scope>

		</dependency>

		<dependency>

			<groupId>com.caucho</groupId>

			<artifactId>hessian</artifactId>

			<version>4.0.38</version>

		</dependency>

	</dependencies>

	<build>

		<finalName>hessian-web</finalName>

		<plugins>

			<plugin>

				<groupId>org.apache.maven.plugins</groupId>

				<artifactId>maven-compiler-plugin</artifactId>

				<version>3.3</version>

				<configuration>

					<source>1.8</source>

					<target>1.8</target>

					<verbose>true</verbose>

				</configuration>

			</plugin>

			<plugin>

				<groupId>org.eclipse.jetty</groupId>

				<artifactId>jetty-maven-plugin</artifactId>

				<version>9.2.11.v20150529</version>

				<configuration>

					<stopKey>foo</stopKey>

					<stopPort>9999</stopPort>

					<httpConnector>

						<port>3389</port>

					</httpConnector>

					<webApp>

						<contextPath>/</contextPath>

					</webApp>

				</configuration>

			</plugin>

		</plugins>

	</build>

</project>

package com.lala.service;

import java.util.Map;

public interface UserService

{

	public Map<String, Object> getById(long id);

	public String get();

}

package com.lala.service;

import java.util.HashMap;

import java.util.Map;

public class UserServiceImpl implements UserService

{

	public String get()

	{

		return "get method invoke";

	}

	public Map<String, Object> getById(long id)

	{

		if(id <= 0)

		{

			return null;

		}

		Map<String, Object> result = new HashMap<>();

		result.put("id", id);

		result.put("name", "英布");

		result.put("position", "九江王");

		return result;

	}

}

servlet例如以下：

package com.lala.servlet;

import java.io.IOException;

import javax.servlet.ServletException;

import javax.servlet.annotation.WebInitParam;

import javax.servlet.annotation.WebServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import com.caucho.hessian.server.HessianServlet;

@WebServlet(value = "/hessian/user", initParams={@WebInitParam(name="service-class",value="com.lala.service.UserServiceImpl")})

public class UserHessianServlet extends HessianServlet

{

	private static final long serialVersionUID = 1L;

	public void init() throws ServletException

	{

		super.init();

	}

	protected void service(HttpServletRequest req, HttpServletResponse resp)

			throws ServletException, IOException

	{

		super.service(req, resp);

	}

}

然后，启动jetty服务

mvn jetty:run

调用代码

package com.client;

import com.caucho.hessian.client.HessianProxyFactory;

import com.lala.service.UserService;

public class App

{

	public static void main(String[] args)throws Exception

	{

		HessianProxyFactory factory = new HessianProxyFactory();  

		String url = "http://127.0.0.1:3389/hessian/user";

		UserService us = (UserService)factory.create(UserService.class,url);  

		System.out.println(us.getById(2l));

		System.out.println(us.get());

	}

}