golang一些常用库(4)

goCopy code// 定义.proto文件
syntax = "proto3";

package main;

message Person {
  required string name = 1;
  required int32 id = 2;
  optional string email = 3;
}

// 使用protoc生成Go代码
// protoc --go_out=. example.proto

goCopy codepackage main

import (
	"github.com/sirupsen/logrus"
)

func main() {
	logrus.SetFormatter(&logrus.JSONFormatter{})

	logrus.WithFields(logrus.Fields{
		"animal": "walrus",
	}).Info("A walrus appears")
}

goCopy codepackage main

import (
	"fmt"
	"github.com/spf13/viper"
)

func main() {
	viper.SetConfigFile("config.toml")
	viper.ReadInConfig()

	fmt.Println("Server IP:", viper.GetString("server.ip"))
	fmt.Println("Server Port:", viper.GetInt("server.port"))
}

goCopy codepackage main

import (
	"testing"
	"github.com/stretchr/testify/assert"
)

func add(x, y int) int {
	return x + y
}

func TestAdd(t *testing.T) {
	result := add(2, 3)
	assert.Equal(t, 5, result, "The result should be 5")
}

goCopy codepackage main

import (
	"fmt"
	"github.com/gorilla/mux"
	"net/http"
)

func main() {
	r := mux.NewRouter()

	r.HandleFunc("/hello/{name}", func(w http.ResponseWriter, r *http.Request) {
		vars := mux.Vars(r)
		name := vars["name"]
		fmt.Fprintf(w, "Hello, %s!", name)
	})

	http.Handle("/", r)
	http.ListenAndServe(":8080", nil)
}