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53 lines
1.1 KiB
53 lines
1.1 KiB
package utils
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import (
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"os/exec"
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"math/rand"
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"time"
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"crypto/md5"
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"encoding/hex"
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"log"
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)
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// 执行shell命令
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func ExecShell(command string, args... string) (string, error) {
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result, err := exec.Command(command, args...).CombinedOutput()
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return string(result), err
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}
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// 生成长度为length的随机字符串
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func RandString(length int64) string {
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sources := []byte("0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ")
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result := []byte{}
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r := rand.New(rand.NewSource(time.Now().UnixNano()))
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sourceLength := len(sources)
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var i int64 = 0
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for ; i < length; i++ {
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result = append(result, sources[r.Intn(sourceLength)])
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}
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return string(result)
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}
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// 生成32位MD5摘要
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func Md5(str string) string {
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m := md5.New()
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m.Write([]byte(str))
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return hex.EncodeToString(m.Sum(nil))
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}
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// 生成0-max之间随机数
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func RandNumber(max int) int {
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r := rand.New(rand.NewSource(time.Now().UnixNano()))
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return r.Intn(max)
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}
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// 日志记录
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// todo 保存到哪里 文件,数据库还是elasticsearch?，暂时输出到终端
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func RecordLog(v... interface{}) {
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log.Println(v)
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} |