fix logger issues

providers/logger/gin_level_writer.go

@@ -7,8 +7,7 @@ import (
 )
 
 type LevelWriter struct {
-	Logger *Logger
-	Level  zapcore.Level
+	Level zapcore.Level
 }
 
 func (w LevelWriter) Write(p []byte) (n int, err error) {

providers/logger/logger.go

@@ -5,6 +5,7 @@ import (
 	"log"
 
 	"go.uber.org/zap"
+	"go.uber.org/zap/zapcore"
 )
 
 func init() {
@@ -19,6 +20,10 @@ type Logger struct {
 	logger *zap.SugaredLogger
 }
 
+func (l *Logger) LevelWriter(level zapcore.Level) *LevelWriter {
+	return &LevelWriter{Level: level}
+}
+
 // Debug uses fmt.Sprint to construct and log a message.
 func Debug(args ...interface{}) {
 	DefaultLogger.logger.Debug(args...)