import org.springframework.web.context.ContextLoader;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 * @Project:IntelligentClass
 * @PackageName:com.tiye.IntelligentClass.controller
 * @Auther: 张颖
 * @Date: 2018年05月15日 08:37
 * @Description:
 */
public class BaseController {
    //protected Logger log = Logger.getLogger(this.getClass());
    /**
     * springMVC 获取requset
     * @return
     */
    public HttpServletRequest getRequest() {
        HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();
        return request;
    }

    /**
     * 获取response
     *
     * @return
     */
    public HttpServletResponse getResponse() {
        HttpServletResponse response = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getResponse();
        return response;
    }

    /**
     * 获取session
     * @return
     */
    public HttpSession getSession() {
        HttpSession session = this.getRequest().getSession();
        return session;
    }

    /**
     * 获取ServletContext
     * @return
     */
    public ServletContext getServletContent() {
        // ServletContext application= request.getServletContext();
        WebApplicationContext webApplicationContext = ContextLoader.getCurrentWebApplicationContext();
        ServletContext servletContext = webApplicationContext.getServletContext();
        return servletContext;
    }

    /**
     * 获取ModelAndView
     * @return
     */
    public ModelAndView getModelAndView() {
        return new ModelAndView();
    }

    public ModelAndView get404ModelAndView() {
        ModelAndView view = new ModelAndView();
        view.setViewName("404");
        return view;
    }

    /**
     * 过滤参数
     *
     * @return
     */
    public ParameterMap getParameterMap() {
        ParameterMap pm = new ParameterMap(this.getRequest());
        pm.put("rip", getRemortIP());
        return pm;
    }

    /**
     * 获取ip
     *
     * @return
     */
    public String getRemortIP() {
        HttpServletRequest request = this.getRequest();
        String ip = "";
        if (request.getHeader("x-forwarded-for") == null) {
            ip = request.getRemoteAddr();
        } else {
            ip = request.getHeader("x-forwarded-for");
        }
        return ip;
    }

    /**
     * 获取port
     * @return
     */
    public int getPort() {
        return this.getRequest().getServerPort();
    }

    /**
     * 获取ip
     * @param
     * @return
     */
    public String getIpAddr() {
        HttpServletRequest request = this.getRequest();
        String ip = request.getHeader("x-forwarded-for");
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("Proxy-Client-IP");
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("WL-Proxy-Client-IP");
        }
        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getRemoteAddr();
        }
        return ip;
    }
}