方法1：

implements ServletRequestAware, ServletResponseAware

public class Hello implements ServletRequestAware, ServletResponseAware {

    private HttpServletRequest request;
    private HttpServletResponse response;


    @Override
    public void setServletRequest(HttpServletRequest httpServletRequest) {
        this.request = httpServletRequest;
    }

    @Override
    public void setServletResponse(HttpServletResponse httpServletResponse) {
        this.response = httpServletResponse;
    }
}

 

方法2

在普通java类中通过ServletActioContext对象来获取