作为消费者访问提供者提供的功能(eureka的铺垫案例)
1. 实体类、提供者的创建如本随笔者的Euraka适合初学者的简单小demo中有所展示
2. 创建子工程作为消费者
(1) 添加依赖:切记引入实体类的依赖
<dependencies>
<dependency>
<groupId>com.offcn</groupId>
<artifactId>microservice_cloud_02_api</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
</dependencies>
(2) application.yml文件中设置端口号为80
(3) 创建配置类
@Configuration
public class ConfigBean {
@Bean
public RestTemplate getConfigBean(){
return new RestTemplate();
}
}
(4) 创建controller类,实现消费者访问提供者功能的功能
@RestController
public class ProductController_Customer {
@Autowired
private RestTemplate restTemplate;
private static final String REST_URL_PREFIX = "http://localhost:8001";
@RequestMapping(value = "/customer/product/add")
public boolean add(Product product){
return restTemplate.postForObject(REST_URL_PREFIX+"/product/add",product,Boolean.class);
}
@RequestMapping(value = "/customer/product/get/{id}")
public Product get(@PathVariable("id") Long id){
return restTemplate.getForObject(URI.create(REST_URL_PREFIX+"/product/get/"+id),Product.class);
}
@RequestMapping(value = "/customer/product/get/list")
public List<Product> list(){
return restTemplate.getForObject(URI.create(REST_URL_PREFIX+"/product/get/list"),List.class);
}
}
(5) 创建启动类
@SpringBootApplication(exclude = DataSourceAutoConfiguration.class)
public class CustomerApplication {
public static void main(String[] args) {
SpringApplication.run(CustomerApplication.class,args);
}
}
因为这个实现在功能对且复杂的情况下,而且男用户量多的时候会配置很多的配置类,太过繁琐,以至于用了eureka来替代了它
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