1. package main
    3. import (
    4.     "log"
    5.     "net/http"
    6.     "time"
    7.     "github.com/gin-gonic/gin"
    8.     "golang.org/x/sync/errgroup"
    9. )
    11. var (
    12.     g errgroup.Group
    13. )
    15. func router01() http.Handler {
    16.     e := gin.New()
    17.     e.Use(gin.Recovery())
    18.     e.GET("/", func(c *gin.Context) {
    19.         c.JSON(
    20.             http.StatusOK,
    21.             gin.H{
    22.                 "code":  http.StatusOK,
    23.                 "error": "Welcome server 01",
    24.             },
    25.         )
    26.     })
    28.     return e
    29. }
    31. func router02() http.Handler {
    32.     e := gin.New()
    33.     e.Use(gin.Recovery())
    34.     e.GET("/", func(c *gin.Context) {
    35.         c.JSON(
    36.             http.StatusOK,
    37.             gin.H{
    38.                 "code":  http.StatusOK,
    39.                 "error": "Welcome server 02",
    40.             },
    41.         )
    42.     })
    44.     return e
    45. }
    47. func main() {
    48.     server01 := &http.Server{
    49.         Addr:         ":8080",
    50.         Handler:      router01(),
    51.         ReadTimeout:  5 * time.Second,
    52.         WriteTimeout: 10 * time.Second,
    53.     }
    55.     server02 := &http.Server{
    56.         Addr:         ":8081",
    57.         Handler:      router02(),
    58.         ReadTimeout:  5 * time.Second,
    59.         WriteTimeout: 10 * time.Second,
    60.     }
    61.    // 借助errgroup.Group或者自行开启两个goroutine分别启动两个服务
    62.     g.Go(func() error {
    63.         return server01.ListenAndServe()
    64.     })
    66.     g.Go(func() error {
    67.         return server02.ListenAndServe()
    68.     })
    70.     if err := g.Wait(); err != nil {
    71.         log.Fatal(err)
    72.     }
    73. }