IDEA搭建springcloud微服务

Love The Way You Lie 2021-12-17 05:09 593阅读 0赞

1：创建空的MAVEN项目

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lhbmdndWFuZ25pdWJp_size_16_color_FFFFFF_t_70][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lhbmdndWFuZ25pdWJp_size_16_color_FFFFFF_t_70 1][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lhbmdndWFuZ25pdWJp_size_16_color_FFFFFF_t_70 2][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lhbmdndWFuZ25pdWJp_size_16_color_FFFFFF_t_70 3][]

然后删除src目录

**二：搭建注册中心**

①在CloudDemo项目上新建Module

![20190708160845553.png][]

②选择Spring Initializr，点击Next

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lhbmdndWFuZ25pdWJp_size_16_color_FFFFFF_t_70 4][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lhbmdndWFuZ25pdWJp_size_16_color_FFFFFF_t_70 5][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lhbmdndWFuZ25pdWJp_size_16_color_FFFFFF_t_70 6][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lhbmdndWFuZ25pdWJp_size_16_color_FFFFFF_t_70 7][]

目录结构

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lhbmdndWFuZ25pdWJp_size_16_color_FFFFFF_t_70 8][]

③在启动类添加注解表明是注册中心

@EnableEurekaServer

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lhbmdndWFuZ25pdWJp_size_16_color_FFFFFF_t_70 9][]

④打开application.properties文件进行编辑

#注册中心端口号
    server.port=1010
    #注册中心IP地址
    eureka.instance.hostname=localhost
    #服务注册中心不注册自己
    eureka.client.register-with-eureka=false
    #注册中心不负责检索服务
    eureka.client.fetch-registry=false
    eureka.client.service-url.defaultZone=http://${eureka.instance.hostname}:${server.port}/eureka/

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lhbmdndWFuZ25pdWJp_size_16_color_FFFFFF_t_70 10][]

⑤启动项目

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lhbmdndWFuZ25pdWJp_size_16_color_FFFFFF_t_70 11][]

⑥访问 [http://localhost:1010/][http_localhost_1010]

注册中心完成

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lhbmdndWFuZ25pdWJp_size_16_color_FFFFFF_t_70 12][]

# **三：服务提供者** #

**①新建Module**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lhbmdndWFuZ25pdWJp_size_16_color_FFFFFF_t_70 13][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lhbmdndWFuZ25pdWJp_size_16_color_FFFFFF_t_70 14][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lhbmdndWFuZ25pdWJp_size_16_color_FFFFFF_t_70 15][]

**②添加注解**

package com.example.ribbonclient;
    
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
    import org.springframework.cloud.client.loadbalancer.LoadBalanced;
    import org.springframework.context.annotation.Bean;
    import org.springframework.web.client.RestTemplate;
    
    
    @SpringBootApplication
    @EnableDiscoveryClient
    public class RibbonClientApplication {
    
        public static void main(String[] args) {
            SpringApplication.run(RibbonClientApplication.class, args);
        }
    
        @Bean
        @LoadBalanced
        RestTemplate restTemplate(){
            return new RestTemplate();
        }
    
    }

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lhbmdndWFuZ25pdWJp_size_16_color_FFFFFF_t_70 16][]

③新建包controller

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lhbmdndWFuZ25pdWJp_size_16_color_FFFFFF_t_70 17][]

④新建java文件HelloRibbonControler

@RestController
    public class HelloRibbonController {
    
        @RequestMapping("/hello")
        public String hello(String name){
            return name+":hello world";
        }
    }

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lhbmdndWFuZ25pdWJp_size_16_color_FFFFFF_t_70 18][]

⑤配置application.properties文件

server.port=1011
    eureka.instance.hostname=localhost
    spring.application.name=ribbon-client
    eureka.client.service-url.defaultZone=http://${eureka.instance.hostname}:1010/eureka/

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lhbmdndWFuZ25pdWJp_size_16_color_FFFFFF_t_70 19][]

⑥启动项目

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lhbmdndWFuZ25pdWJp_size_16_color_FFFFFF_t_70 20][]

⑦访问[http://localhost:1010/][http_localhost_1010]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lhbmdndWFuZ25pdWJp_size_16_color_FFFFFF_t_70 21][]

[http://localhost:1011/hello?name=aa][http_localhost_1011_hello_name_aa]

![20190708205050497.png][]

⑧也可以新建service，controller调用service

@Service
    public class HelloRibbonService {
        public String sayHello(String name){
            return name+" service:hello world";
        }
    }

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lhbmdndWFuZ25pdWJp_size_16_color_FFFFFF_t_70 22][]

访问结果

![2019070821001797.png][]

# **四：服务消费者** #

**①新建项目ribbon-consumer**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lhbmdndWFuZ25pdWJp_size_16_color_FFFFFF_t_70 23][]

**②需要加上**RestTemplate老调用服务

@SpringBootApplication
    @EnableDiscoveryClient
    public class RibbonConsumerApplication {
    
    
        public static void main(String[] args) {
            SpringApplication.run(RibbonConsumerApplication.class, args);
        }
    
        @Bean
        @LoadBalanced
        public RestTemplate restTemplate(){
            return new RestTemplate();
        }
    
    }

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lhbmdndWFuZ25pdWJp_size_16_color_FFFFFF_t_70 24][]

**③建controller和service层**

**service代码如下**

@Service
    public class HelloService {
    
        @Autowired
        RestTemplate restTemplate;
    
        public String getHello(String name){
            return restTemplate.getForObject("http://ribbon-client/hello?name=zhaoyangguang",String.class);
        }
    }

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lhbmdndWFuZ25pdWJp_size_16_color_FFFFFF_t_70 25][]

**controller代码如下**

@RestController
    public class HelloController {
    
    
        @Autowired
        HelloService service;
        @RequestMapping("/hello")
        public String hello(String name){
            return  service.getHello(name);
        }
    }

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lhbmdndWFuZ25pdWJp_size_16_color_FFFFFF_t_70 26][]

④application.properties配置信息

server.port=1012
    spring.application.name=ribbon-consumer
    eureka.instance.hostname=localhost
    eureka.client.service-url.defaultZone=http://${eureka.instance.hostname}:1010/eureka/

⑤访问[http://localhost:1012/hello][http_localhost_1012_hello]

![20190712190831287.png][]

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[20190708160845553.png]: /images/20211213/9a51d41abf0c4e699ee0dabc109963ac.png
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[http_localhost_1010]: http://localhost:1010/
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[http_localhost_1011_hello_name_aa]: http://localhost:1011/hello?name=aa
[20190708205050497.png]: /images/20211213/8d15ad1e0aac4b50bb82364920f4f188.png
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[2019070821001797.png]: /images/20211213/6cf3ef33ed2a44adaebbc8ad0d8f6d41.png
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[http_localhost_1012_hello]: http://peer1:1012/hello?name=zyg
[20190712190831287.png]: /images/20211213/2b7347841bc045548180888881d7f190.png