remove some http hard code (#2045)

Co-authored-by: yonbiaoxiao <yonbiaoxiao@tencent.com>

errors/errors.go

@@ -45,9 +45,9 @@ func Parse(err string) *Error {
 func BadRequest(id, format string, a ...interface{}) error {
 	return &Error{
 		Id:     id,
-		Code:   400,
+		Code:   http.StatusBadRequest,
 		Detail: fmt.Sprintf(format, a...),
-		Status: http.StatusText(400),
+		Status: http.StatusText(http.StatusBadRequest),
 	}
 }
 
@@ -55,9 +55,9 @@ func BadRequest(id, format string, a ...interface{}) error {
 func Unauthorized(id, format string, a ...interface{}) error {
 	return &Error{
 		Id:     id,
-		Code:   401,
+		Code:   http.StatusUnauthorized,
 		Detail: fmt.Sprintf(format, a...),
-		Status: http.StatusText(401),
+		Status: http.StatusText(http.StatusUnauthorized),
 	}
 }
 
@@ -65,9 +65,9 @@ func Unauthorized(id, format string, a ...interface{}) error {
 func Forbidden(id, format string, a ...interface{}) error {
 	return &Error{
 		Id:     id,
-		Code:   403,
+		Code:   http.StatusForbidden,
 		Detail: fmt.Sprintf(format, a...),
-		Status: http.StatusText(403),
+		Status: http.StatusText(http.StatusForbidden),
 	}
 }
 
@@ -75,9 +75,9 @@ func Forbidden(id, format string, a ...interface{}) error {
 func NotFound(id, format string, a ...interface{}) error {
 	return &Error{
 		Id:     id,
-		Code:   404,
+		Code:   http.StatusNotFound,
 		Detail: fmt.Sprintf(format, a...),
-		Status: http.StatusText(404),
+		Status: http.StatusText(http.StatusNotFound),
 	}
 }
 
@@ -85,9 +85,9 @@ func NotFound(id, format string, a ...interface{}) error {
 func MethodNotAllowed(id, format string, a ...interface{}) error {
 	return &Error{
 		Id:     id,
-		Code:   405,
+		Code:   http.StatusMethodNotAllowed,
 		Detail: fmt.Sprintf(format, a...),
-		Status: http.StatusText(405),
+		Status: http.StatusText(http.StatusMethodNotAllowed),
 	}
 }
 
@@ -95,9 +95,9 @@ func MethodNotAllowed(id, format string, a ...interface{}) error {
 func Timeout(id, format string, a ...interface{}) error {
 	return &Error{
 		Id:     id,
-		Code:   408,
+		Code:   http.StatusRequestTimeout,
 		Detail: fmt.Sprintf(format, a...),
-		Status: http.StatusText(408),
+		Status: http.StatusText(http.StatusRequestTimeout),
 	}
 }
 
@@ -105,9 +105,9 @@ func Timeout(id, format string, a ...interface{}) error {
 func Conflict(id, format string, a ...interface{}) error {
 	return &Error{
 		Id:     id,
-		Code:   409,
+		Code:   http.StatusConflict,
 		Detail: fmt.Sprintf(format, a...),
-		Status: http.StatusText(409),
+		Status: http.StatusText(http.StatusConflict),
 	}
 }
 
@@ -115,9 +115,9 @@ func Conflict(id, format string, a ...interface{}) error {
 func InternalServerError(id, format string, a ...interface{}) error {
 	return &Error{
 		Id:     id,
-		Code:   500,
+		Code:   http.StatusInternalServerError,
 		Detail: fmt.Sprintf(format, a...),
-		Status: http.StatusText(500),
+		Status: http.StatusText(http.StatusInternalServerError),
 	}
 }