Springcloud学习第二章：spring服务间访问的原始做法

最新推荐文章于 2025-07-04 16:16:07 发布

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本文介绍了一个基于SpringCloud的服务提供者（springcloud-provider-8001）和一个服务消费者（springcloud-consumer-80）的示例。服务提供者包含一个DeptController，用于处理添加、获取和列出部门信息的请求。服务消费者则通过RestTemplate工具类调用服务提供者的API。此示例展示了如何在Spring项目中实现服务间的远程调用。

1. 服务提供者：springcloud-provider-8001

DeptProvider8001_App：

@SpringBootApplication
@EnableAutoConfiguration(exclude={DataSourceAutoConfiguration.class})
public class DeptProvider8001_App {

    public static void main(String[] args)
    {
        SpringApplication.run(DeptProvider8001_App.class, args);
    }
}

DeptController：

package com.wwt.controller;

import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class DeptController {

    @RequestMapping(value = "/dept/add")
    public String add() {
        return "添加成功";
    }


    @RequestMapping(value = "/dept/get")
    public String get(){
        return "deptname";
    }

    @RequestMapping(value = "/dept/list")
    public String list(){
        return "dept list";
    }

}

2. 服务消费者：springcloud-consumer-80

启动类：

package com.wwt;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;

@SpringBootApplication
@EnableAutoConfiguration(exclude={DataSourceAutoConfiguration.class})
public class DeptConsumer80_App
{
	public static void main(String[] args)
	{
		SpringApplication.run(DeptConsumer80_App.class, args);
	}
}

配置类：

package com.wwt.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.client.RestTemplate;

@Configuration
public class ConfigBean {

    @Bean
    public RestTemplate getRestTemplate(){
        return new RestTemplate();
    }

}

访问类：

package com.wwt.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

@RestController
public class DeptConsumerController {

    private static final String REST_URL_PREFIX = "http://localhost:8001";

    @Autowired
    private RestTemplate restTemplate;

    @RequestMapping(value = "/consumer/dept/add")
    public String add()
    {
        return restTemplate.getForObject(REST_URL_PREFIX + "/dept/add", String.class);
    }

    @RequestMapping(value = "/consumer/dept/get")
    public String get()
    {
        return restTemplate.getForObject(REST_URL_PREFIX + "/dept/get/", String.class);
    }

    @RequestMapping(value = "/consumer/dept/list")
    public String list()
    {
        return restTemplate.getForObject(REST_URL_PREFIX + "/dept/list", String.class);
    }

}

普通Spring项目间访问通过使用Spring自己封装的快捷RestTemplate工具类访问