【Ribbon】SpringCloud的Ribbon负载均衡使用

Trainer2107

于 2023-10-10 23:07:05 发布

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本文链接：https://blog.youkuaiyun.com/Trainer2107/article/details/133758171

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本文介绍了如何在SpringBoot应用中使用Ribbon进行服务发现与负载均衡，通过@Autowired注解注入LoadBalancerClient和RestTemplate，展示了如何通过/book-service调用服务列表并设置HttpClient连接池配置。

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@Slf4j
@RestController
@RequestMapping(value = "/rest/content")
public class RestContentController {

    @Autowired
    private LoadBalancerClient loadbalancerClient;

    @Autowired
    private RestTemplate restTemplate;

    @RequestMapping(value = "/list")
    public ResultResponse list(@RequestBody CommonParam param) {
        ServiceInstance si = loadbalancerClient.choose("books-service");
        String url = String.format("http://%s:%s", si.getHost(), si.getPort());
        log.info("ribbon-url:{}", url);
        ResultResponse resultResponse = restTemplate.postForObject(url, null, ResultResponse.class);
        return resultResponse;
    }
}

# 配置被调用服务集合
books-service.ribbon.listOfServers=\
  http://book-service:8086/rest/content/list,http://book-service:8087/rest/content/list

# httpClient 连接池最大总连接数
ribbon.MaxTotalConnections=200
# httpClient 每个host最大连接数
ribbon.MaxConnectionsPerHost=50