update

context.go

@@ -2,6 +2,7 @@ package touka
 
 import (
 	"context"
+	"encoding/gob"
 	"errors"
 	"fmt"
 	"html/template"
@@ -195,16 +196,32 @@ func (c *Context) String(code int, format string, values ...interface{}) {
 func (c *Context) JSON(code int, obj interface{}) {
 	c.Writer.Header().Set("Content-Type", "application/json; charset=utf-8")
 	c.Writer.WriteHeader(code)
-	// 实际 JSON 编码
+	// JSON 编码
 	jsonBytes, err := json.Marshal(obj)
 	if err != nil {
 		c.AddError(fmt.Errorf("failed to marshal JSON: %w", err))
-		c.String(http.StatusInternalServerError, "Internal Server Error: Failed to marshal JSON")
+		//c.String(http.StatusInternalServerError, "Internal Server Error: Failed to marshal JSON")
+		c.ErrorUseHandle(http.StatusInternalServerError, fmt.Errorf("failed to marshal JSON: %w", err))
 		return
 	}
 	c.Writer.Write(jsonBytes)
 }
 
+// GOB 向响应写入GOB数据
+// 设置 Content-Type 为 application/octet-stream
+func (c *Context) GOB(code int, obj interface{}) {
+	c.Writer.Header().Set("Content-Type", "application/octet-stream") // 设置合适的 Content-Type
+	c.Writer.WriteHeader(code)
+	// GOB 编码
+	encoder := gob.NewEncoder(c.Writer)
+	if err := encoder.Encode(obj); err != nil {
+		c.AddError(fmt.Errorf("failed to encode GOB: %w", err))
+		//c.String(http.StatusInternalServerError, "Internal Server Error: Failed to encode GOB")
+		c.ErrorUseHandle(http.StatusInternalServerError, fmt.Errorf("failed to encode GOB: %w", err))
+		return
+	}
+}
+
 // HTML 渲染 HTML 模板
 // 如果 Engine 配置了 HTMLRender，则使用它进行渲染
 // 否则，会进行简单的字符串输出
@@ -219,7 +236,8 @@ func (c *Context) HTML(code int, name string, obj interface{}) {
 			err := tpl.ExecuteTemplate(c.Writer, name, obj)
 			if err != nil {
 				c.AddError(fmt.Errorf("failed to render HTML template '%s': %w", name, err))
-				c.String(http.StatusInternalServerError, "Internal Server Error: Failed to render HTML template")
+				//c.String(http.StatusInternalServerError, "Internal Server Error: Failed to render HTML template")
+				c.ErrorUseHandle(http.StatusInternalServerError, fmt.Errorf("failed to render HTML template '%s': %w", name, err))
 			}
 			return
 		}
@@ -468,9 +486,9 @@ func (c *Context) GetAllReqHeader() http.Header {
 }
 
 // 使用定义的errorHandle来处理error并结束当前handle
-func (c *Context) ErrorUseHandle(code int) {
+func (c *Context) ErrorUseHandle(code int, err error) {
 	if c.engine != nil && c.engine.errorHandle.handler != nil {
-		c.engine.errorHandle.handler(c, code)
+		c.engine.errorHandle.handler(c, code, err)
 		c.Abort()
 		return
 	} else {

ecw.go

@@ -136,7 +136,7 @@ func (ecw *errorCapturingResponseWriter) processAfterFileServer() {
 			ecw.ctx.Next()
 		} else {
 			// 调用用户自定义的 ErrorHandlerFunc, 由它负责完整的错误响应
-			ecw.errorHandlerFunc(ecw.ctx, ecw.Status())
+			ecw.errorHandlerFunc(ecw.ctx, ecw.Status(), errors.New("file server error"))
 			ecw.ctx.Abort()
 		}
 	}

engine.go

@@ -2,6 +2,7 @@ package touka
 
 import (
 	"context"
+	"errors"
 	"log"
 	"reflect"
 	"runtime"
@@ -70,10 +71,10 @@ type ErrorHandle struct {
 	handler    ErrorHandler
 }
 
-type ErrorHandler func(c *Context, code int)
+type ErrorHandler func(c *Context, code int, err error)
 
 // defaultErrorHandle 默认错误处理
-func defaultErrorHandle(c *Context, code int) { // 检查客户端是否已断开连接
+func defaultErrorHandle(c *Context, code int, err error) { // 检查客户端是否已断开连接
 	select {
 	case <-c.Request.Context().Done():
 
@@ -86,6 +87,7 @@ func defaultErrorHandle(c *Context, code int) { // 检查客户端是否已断
 		c.JSON(code, H{
 			"code":    code,
 			"message": http.StatusText(code),
+			"error":   err,
 		})
 		c.Writer.Flush()
 		c.Abort()
@@ -95,17 +97,17 @@ func defaultErrorHandle(c *Context, code int) { // 检查客户端是否已断
 
 // 默认errorhandle包装 避免竞争意外问题, 保证稳定性
 func defaultErrorWarp(handler ErrorHandler) ErrorHandler {
-	return func(c *Context, code int) {
+	return func(c *Context, code int, err error) {
 		select {
 		case <-c.Request.Context().Done():
 			return
 		default:
 			if c.Writer.Written() {
-				log.Printf("errpage: response already started for status %d, skipping error page rendering", code)
+				log.Printf("errpage: response already started for status %d, skipping error page rendering,  err: %v", code, err)
 				return
 			}
 		}
-		handler(c, code)
+		handler(c, code, err)
 	}
 }
 
@@ -431,7 +433,7 @@ func unMatchFSHandle() HandlerFunc {
 					c.Abort()
 					return
 				} else {
-					engine.errorHandle.handler(c, http.StatusMethodNotAllowed)
+					engine.errorHandle.handler(c, http.StatusMethodNotAllowed, errors.New("method not allowed"))
 					return
 				}
 			} else {
@@ -476,7 +478,7 @@ func MethodNotAllowed() HandlerFunc {
 			value := treeIter.root.getValue(requestPath, nil, &tempSkippedNodes, false) // 只查找是否存在，不需要参数
 			if value.handlers != nil {
 				// 使用定义的ErrorHandle处理
-				engine.errorHandle.handler(c, http.StatusMethodNotAllowed)
+				engine.errorHandle.handler(c, http.StatusMethodNotAllowed, errors.New("method not allowed"))
 				return
 			}
 		}
@@ -487,7 +489,7 @@ func MethodNotAllowed() HandlerFunc {
 func NotFound() HandlerFunc {
 	return func(c *Context) {
 		engine := c.engine
-		engine.errorHandle.handler(c, http.StatusNotFound)
+		engine.errorHandle.handler(c, http.StatusNotFound, errors.New("not found"))
 		return
 	}
 }
@@ -682,7 +684,7 @@ func (engine *Engine) Static(relativePath, rootPath string) {
 				c.Next()
 			} else {
 				// 否则，返回 405 Method Not Allowed
-				engine.errorHandle.handler(c, http.StatusMethodNotAllowed)
+				engine.errorHandle.handler(c, http.StatusMethodNotAllowed, errors.New("method not allowed"))
 			}
 			return
 		}
@@ -746,7 +748,7 @@ func (group *RouterGroup) Static(relativePath, rootPath string) {
 				c.Next()
 			} else {
 				// 否则，返回 405 Method Not Allowed
-				group.engine.errorHandle.handler(c, http.StatusMethodNotAllowed)
+				group.engine.errorHandle.handler(c, http.StatusMethodNotAllowed, errors.New("method not allowed"))
 			}
 			return
 		}
@@ -805,7 +807,7 @@ func (engine *Engine) StaticFile(relativePath, filePath string) {
 				c.Next()
 			} else {
 				// 否则，返回 405 Method Not Allowed
-				engine.errorHandle.handler(c, http.StatusMethodNotAllowed)
+				engine.errorHandle.handler(c, http.StatusMethodNotAllowed, errors.New("method not allowed"))
 			}
 			return
 		}
@@ -861,7 +863,7 @@ func (group *RouterGroup) StaticFile(relativePath, filePath string) {
 				c.Next()
 			} else {
 				// 否则，返回 405 Method Not Allowed
-				group.engine.errorHandle.handler(c, http.StatusMethodNotAllowed)
+				group.engine.errorHandle.handler(c, http.StatusMethodNotAllowed, errors.New("method not allowed"))
 			}
 			return
 		}

recovery.go

@@ -91,7 +91,7 @@ func defaultPanicHandler(c *Context, r interface{}) {
 	// 尝试发送 500 Internal Server Error 响应
 	// 使用框架提供的统一错误处理器（如果可用）
 	if c.engine != nil && c.engine.errorHandle.handler != nil {
-		c.engine.errorHandle.handler(c, http.StatusInternalServerError)
+		c.engine.errorHandle.handler(c, http.StatusInternalServerError, errors.New("Internal Panic Error"))
 	} else {
 		// 如果框架错误处理器不可用，提供一个备用的简单响应
 		// 返回英文错误信息