Go 开发常用工具库
使用golang官方 dep 管理依赖
go get github.com/chanyipiaomiao/hltool- 2步验证客户端
- AES加密解密
- RSA加密解密
- 钉钉机器人通知
- 发送邮件
- JWT Token生成解析
- Log库
- BoltDB嵌入式KV数据库
- 检测图片类型
- 图片转[]byte
- []byte转换为png/jpg
- json文件转换为byte数组
- json []byte转换为struct
- struct序列化成二进制文件和反序列化
- struct序列化成byte数组和反序列化
模拟Google Authenticator验证器命令行客户端
import (
"github.com/chanyipiaomiao/hltool"
"fmt"
)
func main() {
totp := &hltool.TOTP{
SecretKey: "xxxxxxxxxxx",
Algorithm: "SHA1",
Name: "HeHe",
}
n, t, err := hltool.TwoStepAuthGenNumber(totp)
if err != nil {
panic(err)
}
fmt.Printf("%s %s %d\n", totp.Name, n, t)
}package main
import (
"encoding/base64"
"fmt"
"log"
"github.com/chanyipiaomiao/hltool"
)
func main() {
// AES 加解密 指定加密的密码
goaes := hltool.NewGoAES([]byte("O8Hp8WQbFPT7b5AUsEMVLtIU3MVYOrt8"))
// 加密数据
encrypt, err := goaes.Encrypt([]byte("123456"))
if err != nil {
log.Fatalln(err)
}
fmt.Println(base64.StdEncoding.EncodeToString(encrypt))
// 解密数据
decrypt, err := goaes.Decrypt(encrypt)
if err != nil {
log.Fatalln(err)
}
fmt.Println(string(decrypt))
}package main
import (
"fmt"
"log"
"github.com/chanyipiaomiao/hltool"
)
func main() {
// 生成 2048 位密钥对文件 指定名称
err := hltool.NewRSAFile("id_rsa.pub", "id_rsa", 2048)
if err != nil {
log.Fatalln(err)
}
// 生成密钥对字符串
// pub, pri, err := hltool.NewRSAString(2048)
// if err != nil {
// log.Fatalln(err)
// }
// fmt.Println(pub)
// fmt.Println(pri)
// 指定 公钥文件名 和 私钥文件名
gorsa, err := hltool.NewGoRSA("id_rsa.pub", "id_rsa")
if err != nil {
log.Fatalln(err)
}
// 明文字符
rawStr := "O8Hp8WQbFPT7b5AUsEMVLtIU3MVYOrt8"
// 使用公钥加密
encrypt, err := gorsa.PublicEncrypt([]byte(rawStr))
if err != nil {
log.Fatalln(err)
}
// 使用私钥解密
decrypt, err := gorsa.PrivateDecrypt(encrypt)
if err != nil {
log.Fatalln(err)
}
fmt.Println(string(decrypt))
}import (
"log"
"github.com/chanyipiaomiao/hltool"
)
dingtalk := hltool.NewDingTalkClient("钉钉机器URL", "消息内容", "text|markdown")
ok, err := hltool.SendMessage(dingtalk)
if err != nil {
log.Fatalf("发送钉钉通知失败了: %s", err)
}import (
"log"
"github.com/chanyipiaomiao/hltool"
)
username := "[email protected]"
host := "smtp.exmail.qq.com"
password := "password"
port := 465
subject := "主题"
content := "内容"
contentType := "text/plain|text/html"
attach := "附件路径" 或者 ""
to := []string{"[email protected]", "[email protected]"}
cc := []string{"[email protected]", "[email protected]"}
message := hltool.NewEmailMessage(username, subject, contentType, content, attach, to, cc)
email := hltool.NewEmailClient(host, username, password, port, message)
ok, err := hltool.SendMessage(email)
if err != nil {
log.Fatalf("发送邮件失败了: %s", err)
}import (
"fmt"
"log"
"github.com/chanyipiaomiao/hltool"
)
func main() {
// 签名字符串
sign := "fDEtrkpbQbocVxYRLZrnkrXDWJzRZMfO"
token := hltool.NewJWToken(sign)
// ----------- 生成jwt token -----------
tokenString, err := token.GenJWToken(map[string]interface{}{
"name": "root",
})
if err != nil {
log.Fatalf("%s", err)
}
fmt.Println(tokenString)
// ----------- 解析 jwt token -----------
r, err := token.ParseJWToken(tokenString)
if err != nil {
log.Fatalf("%s", err)
}
fmt.Println(r)
}输出
eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJuYW1lIjoicm9vdCJ9.NJMXxkzdBBWrNUO5u2oXFLU9FD18TWiXHqxM2msT1x0
map[name:root]- 支持按天分割日志
- 不同级别输出到不同文件
- 支持 文本/json日志类型,默认是json类型
- 设置日志最大保留时间
import (
"github.com/chanyipiaomiao/hltool"
)
func main() {
commonFields := map[string]interface{}{
"name": "zhangsan",
"age": "20",
}
hlog, _ := hltool.NewHLog("./test.log")
// hlog.SetLevel("debug") debug|info|warn|error|fatal|panic
logger, _ := hlog.GetLogger()
// Info Warn 会输出到不同的文件
logger.Info(commonFields, "测试Info消息")
logger.Warn(commonFields, "测试Warn消息")
// Error Fatal Panic 会输出到一个文件
logger.Error(commonFields, "测试Error消息")
logger.Fatal(commonFields, "测试Fatal消息")
logger.Panic(commonFields, "测试Panic消息")
}日志文件内容:
{"age":"20","level":"debug","msg":"测试Debug消息","name":"zhangsan","time":"2018-02-08 21:28:29"}
{"age":"20","level":"info","msg":"测试Info消息","name":"zhangsan","time":"2018-02-08 21:28:29"}
{"age":"20","level":"warning","msg":"测试Warn消息","name":"zhangsan","time":"2018-02-08 21:28:29"}
{"age":"20","level":"error","msg":"测试Error消息","name":"zhangsan","time":"2018-02-08 21:28:29"}import (
"log"
"github.com/chanyipiaomiao/hltool"
)
func main() {
// 数据库文件路径 表名
db, err := hltool.NewBoltDB("./data/app.db", "token")
if err != nil {
log.Fatalf("%s", err)
}
db.Set(map[string][]byte{
"hello": []byte("world"),
"go": []byte("golang"),
})
r, err := db.Get([]string{"hello", "go"})
if err != nil {
log.Fatalf("%s", err)
}
log.Println(r)
}package main
import (
"fmt"
"github.com/chanyipiaomiao/hltool"
)
func main() {
bytes, _ := hltool.ImageToBytes("1.png")
fmt.Println(hltool.ImageType(bytes))
}输出结果:
image/pngpackage main
import (
"fmt"
"github.com/chanyipiaomiao/hltool"
)
func main() {
bytes, err := hltool.ImageToBytes("1.png")
if err != nil {
fmt.Println(err)
}
}package main
import (
"fmt"
"github.com/chanyipiaomiao/hltool"
)
func main() {
bytes, err := hltool.ImageToBytes("1.png")
if err != nil {
log.Fatalln(err)
}
err = hltool.BytesToImage(bytes, "111.png")
if err != nil {
log.Fatalln(err)
}
}json文件内容
{
"Name": "张三",
"Age": 20,
"Address": {
"Country": "China",
"Province": "Shanghai",
"City": "Shanghai"
}package main
import (
"fmt"
"log"
"github.com/chanyipiaomiao/hltool"
)
func main() {
// 读取json文件转换为 []byte
b, err := hltool.JSONFileToBytes("/Users/helei/Desktop/test.json")
if err != nil {
log.Fatalln(err)
}
}package main
import (
"fmt"
"log"
"github.com/chanyipiaomiao/hltool"
)
type Person struct {
Name string `json:"Name"`
Age int `json:"Age"`
Address struct {
Country string `json:"Country"`
Province string `json:"Province"`
City string `json:"City"`
} `json:"Address"`
}
func main() {
// 读取json文件转换为 []byte
b, err := hltool.JSONFileToBytes("/Users/helei/Desktop/test.json")
if err != nil {
log.Fatalln(err)
}
// json []byte转换为 struct
p := new(Person)
err = hltool.JSONBytesToStruct(b, p)
if err != nil {
log.Fatalln(err)
}
fmt.Println(p)
}二进制文件可以存储到磁盘上，再次利用
package main
import (
"fmt"
"log"
"github.com/chanyipiaomiao/hltool"
)
// Person 人
type Person struct {
Name string
Age int
Address struct {
Country string
Province string
City string
}
}
func main() {
p := &Person{
Name: "张三",
Age: 20,
}
p.Address.Country = "China"
p.Address.Province = "Shanghai"
p.Address.City = "Shanghai"
fmt.Println("序列化成二进制文件之前")
fmt.Println(p)
// 序列化成二级制文件，可以存储到磁盘上
err := hltool.StructToBinFile(p, "/tmp/p.bin")
if err != nil {
log.Fatalln(err)
}
// 反序列化
p2 := new(Person)
err = hltool.BinFileToStruct("/tmp/p.bin", p2)
if err != nil {
log.Fatalln(err)
}
fmt.Println("从二进制文件中转换之后")
fmt.Println(p2)
}struct序列化成byte数组，可以存储到数据库中,再次利用
package main
import (
"fmt"
"log"
"github.com/chanyipiaomiao/hltool"
)
// Person 人
type Person struct {
Name string `json:"Name"`
Age int `json:"Age"`
Address struct {
Country string `json:"Country"`
Province string `json:"Province"`
City string `json:"City"`
} `json:"Address"`
}
func main() {
p := &Person{
Name: "张三",
Age: 20,
}
p.Address.Country = "China"
p.Address.Province = "Shanghai"
p.Address.City = "Shanghai"
fmt.Println("struct序列化成[]byte")
// struct序列化成[]byte，可以存储到数据库
b, err := hltool.StructToBytes(p)
if err != nil {
log.Fatalln(err)
}
fmt.Println(p)
fmt.Println(b)
// []byte反序列化成struct 和序列化之前的结构体结构必须要一样
fmt.Println("[]byte反序列化成struct")
p2 := new(Person)
err = hltool.BytesToStruct(b, p2)
if err != nil {
log.Fatalln(err)
}
fmt.Println(p2)
}