一个简单的结构化日志
- JSON 结构数据
- Level输出
- Hook勾子
- 日志文件大小设置，滚动更新
- 直接写入或缓冲写入
- HTTP更新Level
get get github.com/tanzy2018/simplelog- 基本使用
package main
import (
"github.com/tanzy2018/simplelog"
"github.com/tanzy2018/simplelog/encode"
)
func main() {
newLog := simplelog.New()
defer newLog.Sync()
newLog.Info("profile", encode.String("name", "Tom"), encode.Int("id", 10), encode.Any("flag", false))
}
// 输出:
/*
{"time":"2020-08-11 10:28:18","level":"info","msg":"profile","name":"Tom","id":10,"flag":false}
*/
- 使用文件输出
package main
import (
"github.com/tanzy2018/simplelog"
"github.com/tanzy2018/simplelog/encode"
)
func main() {
newLog := simplelog.New().WithFileWriter("", "", "output.txt")
defer newLog.Sync()
newLog.Info("profile", encode.String("name", "Tom"), encode.Int("id", 10), encode.Any("flag", false))
}
// 输出
/* output.txt
{"time":"2020-08-14 16:13:09","level":"info","msg":"profile","name":"Tom","id":10,"flag":false}
*/- 使用勾子 Hook
package main
import (
"github.com/tanzy2018/simplelog"
"github.com/tanzy2018/simplelog/encode"
)
func main() {
newLog := simplelog.New()
newLog.Hook(func() encode.Meta {
return encode.Any("map", map[string]interface{}{"fruit": []string{"apple", "peach"}})
})
newLog.Hook(func() encode.Meta {
return encode.Bools("flags", []bool{false, true, false})
})
defer newLog.Sync()
newLog.Info("profile", encode.String("name", "Tom"))
newLog.Info("profile", encode.String("name", "Jeiry"), encode.Int("say", 2))
}
// 输出
/*
{"time":"2020-08-11 11:13:19","level":"info","msg":"profile","map":{"fruit":["apple","peach"]},"flags":[false,true,false],"name":"Tom"}
{"time":"2020-08-11 11:13:19","level":"info","msg":"profile","map":{"fruit":["apple","peach"]},"flags":[false,true,false],"name":"Jeiry","say":2}
*/- 自动设置日志文件大小
package main
import (
"strings"
"github.com/tanzy2018/simplelog"
"github.com/tanzy2018/simplelog/encode"
)
func main() {
simplelog.TimeFieldFormat = simplelog.TimestampUnixMilliFormat
newLog := simplelog.New(
simplelog.WithSyncDirect(false),
// each file with size 1M
simplelog.WithMaxFileSize(1024*1024*1),
)
newLog.WithFileWriter(".", "data", "demo.log")
defer newLog.Sync()
oneKBStr := strings.Repeat("01234567890", 100)
// At last, it will generate three *.log in ./data/
for i := 0; i < 2000; i++ {
newLog.Info("infomsg", encode.String("1kb_str", oneKBStr))
}
}
/*
# ls ./data
───┬──────────────────────────────────────────┬──────┬──────────┬────────────
# │ name │ type │ size │ modified
───┼──────────────────────────────────────────┼──────┼──────────┼────────────
0 │ data/demo.1597163700_1597163700_0198.log │ File │ 1.0 MB │ 2 secs ago
1 │ data/demo.1597163700_1597163700_0b2e.log │ File │ 1.0 MB │ 2 secs ago
2 │ data/demo.log │ File │ 260.8 KB │ 2 secs ago
───┴──────────────────────────────────────────┴──────┴──────────┴────────────
*/