怎么进行Hessian入门

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创建一个web项目hessianServer，导入 hessian-4.0.62.jar

创建 Customer 实现 Serializable 接口

import java.io.Serializable;

public class Customer implements Serializable {

    private String id;
    private String name;
    private String address;

    ...
}

创建 CustomerServiceImpl

package com.gwl.crm.service.impl;

import com.gwl.crm.model.Customer;
import com.gwl.crm.service.CustomerService;

import java.util.ArrayList;
import java.util.List;

public class CustomerServiceImpl implements CustomerService {

    @Override
    public List<Customer> findAll() {

        Customer c1 = new Customer("01","zhangsan","beijing");
        Customer c2 = new Customer("02","lisi","shenzhen");

        List<Customer> customers = new ArrayList<>();
        customers.add(c1);
        customers.add(c2);

        return customers;
    }
}

配置 web.xml

    <servlet>
        <servlet-name>hessian</servlet-name>
        <servlet-class>com.caucho.hessian.server.HessianServlet</servlet-class>
        <init-param>
            <param-name>home-class</param-name>
            <param-value>com.gwl.crm.service.impl.CustomerServiceImpl</param-value>
        </init-param>
        <init-param>
            <param-name>home-api</param-name>
            <param-value>com.gwl.crm.service.CustomerService</param-value>
        </init-param>
    </servlet>
    <servlet-mapping>
        <servlet-name>hessian</servlet-name>
        <url-pattern>/hessian/customer</url-pattern>
    </servlet-mapping>

创建一个客户端项目，导入 hessian-4.0.62.jar，复制web项目hessianServer 中的 Customer 和 CustomerService到客户端项目中

import com.caucho.hessian.client.HessianProxyFactory;

import java.util.List;

public class Main {

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

        HessianProxyFactory factory = new HessianProxyFactory();

        CustomerService customerService = (CustomerService) factory.create(CustomerService.class,"http://localhost:8080/hessianServer_war_exploded/hessian/customer");

        List<Customer> customers = customerService.findAll();

        // 输出 [{address=beijing, name=zhangsan, id=01}, {address=shenzhen, name=lisi, id=02}]
        System.out.println(customers);
    }
}

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