docs: public void validatePasswordModify(PasswordModifyForm passwordModifyForm) {
  
          Visitor visitor = ThreadContext.getSessionVisitor();
  
          User user = userMgr.getUser(visitor.getLoginUserId());
  
          // 校验密码
          if (!signMgr.validate(user.getPassword(), passwordModifyForm.getOld_password())) {
              throw new FieldException(PasswordModifyForm.OLD_PASSWORD, "password.not.right", null);
          }
  
          if (!passwordModifyForm.getNew_password().equals(passwordModifyForm.getNew_password_2())) {
              throw new FieldException(PasswordModifyForm.NEW_PASSWORD, "two.password.not.equal", null);
          }
      }