[修改]日志中的堆栈信息无换行问题

.gitignore

@@ -26,4 +26,5 @@ output/
 
 # Go workspace file
 /go.work.sum
-/pom.xml
+/pom.xml
+/bj-rtsts-server

logger/logger.go

@@ -36,7 +36,11 @@ func InitSlog() {
 
 	if logging.Stdout {
 		// 日志输出到控制台
-		slog.SetDefault(slog.New(slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{
+		//slog.SetDefault(slog.New(slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{
+		//	Level:     level,
+		//	AddSource: false,
+		//})))
+		slog.SetDefault(slog.New(newMyJsonHandler(os.Stdout, &slog.HandlerOptions{
 			Level:     level,
 			AddSource: false,
 		})))
@@ -50,7 +54,11 @@ func InitSlog() {
 			LocalTime:  true,                                          // 日志备份使用本地时间
 			Compress:   logging.Compress,                              // 是否压缩日志
 		}
-		slog.SetDefault(slog.New(slog.NewJSONHandler(lumberJackLogger, &slog.HandlerOptions{
+		//slog.SetDefault(slog.New(slog.NewJSONHandler(lumberJackLogger, &slog.HandlerOptions{
+		//	Level:     level,
+		//	AddSource: false,
+		//})))
+		slog.SetDefault(slog.New(newMyJsonHandler(lumberJackLogger, &slog.HandlerOptions{
 			Level:     level,
 			AddSource: false,
 		})))

logger/my_json_handler.go

@@ -0,0 +1,63 @@
+package logger
+
+import (
+	"context"
+	"io"
+	"log/slog"
+	"sync"
+)
+
+type MyJsonHandler struct {
+	output      io.Writer
+	mu          sync.Mutex
+	jsonHandler slog.Handler
+}
+
+var stackChan = make(chan string, 100)
+
+func newMyJsonHandler(output io.Writer, opts *slog.HandlerOptions) *MyJsonHandler {
+	if opts == nil {
+		opts = &slog.HandlerOptions{}
+	}
+	ra := opts.ReplaceAttr
+	opts.ReplaceAttr = func(groups []string, a slog.Attr) slog.Attr {
+		if a.Key == "stack" {
+			stackChan <- a.Value.String()
+			return slog.Attr{}
+		} else {
+			if ra != nil {
+				return ra(groups, a)
+			} else {
+				return a
+			}
+		}
+	}
+	return &MyJsonHandler{output: output, mu: sync.Mutex{}, jsonHandler: slog.NewJSONHandler(output, opts)}
+}
+
+func (s *MyJsonHandler) Enabled(ctx context.Context, level slog.Level) bool {
+	return s.jsonHandler.Enabled(ctx, level)
+}
+
+func (s *MyJsonHandler) Handle(ctx context.Context, record slog.Record) error {
+	err := s.jsonHandler.Handle(ctx, record)
+	if err != nil {
+		return err
+	}
+	select {
+	case stack := <-stackChan:
+		s.mu.Lock()
+		defer s.mu.Unlock()
+		_, err = s.output.Write([]byte(stack))
+	default:
+	}
+	return err
+}
+
+func (s *MyJsonHandler) WithAttrs(attrs []slog.Attr) slog.Handler {
+	return s.jsonHandler.WithAttrs(attrs)
+}
+
+func (s *MyJsonHandler) WithGroup(name string) slog.Handler {
+	return s.jsonHandler.WithGroup(name)
+}

logger/my_json_handler_test.go

@@ -0,0 +1,21 @@
+package logger
+
+import (
+	"log/slog"
+	"os"
+	"testing"
+)
+
+func BenchmarkMyJsonHandler_Handle(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		//slog.SetDefault(slog.New(slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{
+		//	AddSource: false,
+		//	Level:     nil,
+		//})))
+		slog.SetDefault(slog.New(newMyJsonHandler(os.Stdout, &slog.HandlerOptions{
+			AddSource: false,
+			Level:     nil,
+		})))
+		slog.Info("这是一条日志", "error", "错误", "stack", "goroutine 10 [running]:\nruntime/debug.Stack()\n\tD:/develop/Go/go1.21.4/src/runtime/debug/stack.go:24 +0x6b\njoylink.club/bj-rtsts-server/starter.customRecoveryWithSlog.func1.1()\n\tD:/GoProject/rts-sim-testing-service/starter/init.go:126 +0x36f\npanic({0x1f0cb40?, 0x226fd50?})\n\tD:/develop/Go/go1.21.4/src/runtime/panic.go:920 +0x290\njoylink.club/bj-rtsts-server/api.createByProjectId(0xc001a06100)\n\tD:/GoProject/rts-sim-testing-service/api/simulation.go:91 +0x26\ngithub.com/gin-gonic/gin.(*Context).Next(0xc001a06100)\n\tC:/Users/thesai/go/pkg/mod/github.com/gin-gonic/gin@v1.9.1/context.go:174 +0x7a\njoylink.club/bj-rtsts-server/middleware.permissionMiddleware.func1(0xc001a06100)\n\tD:/GoProject/rts-sim-testing-service/middleware/auth.go:35 +0x178\ngithub.com/gin-gonic/gin.(*Context).Next(0xc001a06100)\n\tC:/Users/thesai/go/pkg/mod/github.com/gin-gonic/gin@v1.9.1/context.go:174 +0x7a\ngithub.com/appleboy/gin-jwt/v2.(*GinJWTMiddleware).middlewareImpl(0xc000504340, 0xc001a06100)\n\tC:/Users/thesai/go/pkg/mod/github.com/appleboy/gin-jwt/v2@v2.9.1/auth_jwt.go:462 +0x579\ngithub.com/appleboy/gin-jwt/v2.(*GinJWTMiddleware).MiddlewareFunc.func1(0xc001a06100)\n\tC:/Users/thesai/go/pkg/mod/github.com/appleboy/gin-jwt/v2@v2.9.1/auth_jwt.go:415 +0x26\ngithub.com/gin-gonic/gin.(*Context).Next(0xc001a06100)\n\tC:/Users/thesai/go/pkg/mod/github.com/gin-gonic/gin@v1.9.1/context.go:174 +0x7a\njoylink.club/bj-rtsts-server/starter.customRecoveryWithSlog.func1(0xc001a06100)\n\tD:/GoProject/rts-sim-testing-service/starter/init.go:135 +0xef\ngithub.com/gin-gonic/gin.(*Context).Next(0xc001a06100)\n\tC:/Users/thesai/go/pkg/mod/github.com/gin-gonic/gin@v1.9.1/context.go:174 +0x7a\ngithub.com/samber/slog-gin.NewWithConfig.func1(0xc001a06100)\n\tC:/Users/thesai/go/pkg/mod/github.com/samber/slog-gin@v1.1.0/middleware.go:70 +0x13f\ngithub.com/gin-gonic/gin.(*Context).Next(0xc001a06100)\n\tC:/Users/thesai/go/pkg/mod/github.com/gin-gonic/gin@v1.9.1/context.go:174 +0x7a\ngithub.com/gin-gonic/gin.(*Engine).handleHTTPRequest(0xc0004d51e0, 0xc001a06100)\n\tC:/Users/thesai/go/pkg/mod/github.com/gin-gonic/gin@v1.9.1/gin.go:620 +0x427\ngithub.com/gin-gonic/gin.(*Engine).ServeHTTP(0xc0004d51e0, {0x227e480, 0xc00012aee0}, 0xc001a07100)\n\tC:/Users/thesai/go/pkg/mod/github.com/gin-gonic/gin@v1.9.1/gin.go:576 +0xbc\nnet/http.serverHandler.ServeHTTP({0xc0017f0960}, {0x227e480, 0xc00012aee0}, 0xc001a07100)\n\tD:/develop/Go/go1.21.4/src/net/http/server.go:2938 +0x257\nnet/http.(*conn).serve(0xc0019422d0, {0x2285b38, 0xc001982000})\n\tD:/develop/Go/go1.21.4/src/net/http/server.go:2009 +0x1a39\ncreated by net/http.(*Server).Serve in goroutine 1\n\tD:/develop/Go/go1.21.4/src/net/http/server.go:3086 +0xa25")
+	}
+}

starter/init.go

@@ -122,11 +122,7 @@ func customRecoveryWithSlog(logger *slog.Logger, stack bool, recovery gin.Recove
 				}
 
 				if stack {
-					logger.Error("请求处理Panic异常",
+					logger.Error("请求处理Panic异常", "error", err, "stack", string(debug.Stack()))
-						"error", err,
-						"stack", string(debug.Stack()),
-					)
-					debug.PrintStack()
 				} else {
 					logger.Error("请求处理Panic异常",
 						"error", err,