31.总结

package main

import (
    "context"
    "fmt"
    "github.com/micro/go-micro/client"
    "github.com/micro/go-micro/client/selector"
    "github.com/micro/go-micro/registry"
    myhttp "github.com/micro/go-plugins/client/http"
    "github.com/micro/go-plugins/registry/consul"
    "log"
)

func callAPI(s selector.Selector) {
    myCli := myhttp.NewClient(
        client.Selector(s),
        client.ContentType("application/json"),
    )
    req := myCli.NewRequest("prodservice", "/v1/prods", map[string]int{"SIZE":3}) //使用生成的pb文件中的结构体作为参数封装到请求体中

    var resp Models.ProdListResponse //这里使用生成的response对象，这样就避免了我们在传递时候参数类型的不灵活，也就解决了上节课的问题
    err := myCli.Call(context.Background(), req, &resp)
    if err != nil {
        log.Fatal(err)
    }
    fmt.Println(resp)
}

func main() {
    consulReg := consul.NewRegistry(
        registry.Addrs("localhost:8500"),
    )
    mySelector := selector.NewSelector(
        selector.Registry(consulReg),
        selector.SetStrategy(selector.RoundRobin), //设置查询策略，这里是轮询
    )
    callAPI(mySelector)
}