修复错误处理逻辑，创建服务错误返回指针

web/common/types.go

@@ -165,12 +165,12 @@ func (e ServiceErr) Error() string {
 	return e.msg
 }
 
-func NewErr(name, msg string, code ...int) ServiceErr {
+func NewErr(name, msg string, code ...int) *ServiceErr {
 	_code := 400
 	if len(code) > 0 {
 		_code = code[0]
 	}
-	return ServiceErr{
+	return &ServiceErr{
 		name: name,
 		msg:  msg,
 		code: _code,