直接加载错误页面void com.opensymphony.xwork2.ActionSupport.addActionError(String anErrorMessage)

void com.opensymphony.xwork2.ActionSupport.addActionError(String
anErrorMessage)

  if (this.brokerage == null) {
   this.addActionError("佣金确认信息为空,无法保存!");
   return "showConfirmOrder";
  }