com.zoi7.component.web.util.RequestUtils Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of component-web Show documentation

web组件

There is a newer version: 2.1.0

package com.zoi7.component.web.util;

import com.zoi7.component.core.base.BaseClass;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.util.UrlPathHelper;

import javax.servlet.http.HttpServletRequest;

/**
 * HttpServletRequest帮助类
 */
public class RequestUtils extends BaseClass {

    private static final Logger log = LoggerFactory.getLogger(RequestUtils.class);
    /**
     * 获取访问者IP
     *
     * 在一般情况下使用Request.getRemoteAddr()即可，但是经过nginx等反向代理软件后，这个方法会失效。
     *
     * 本方法先从Header中获取X-Real-IP，如果不存在再从X-Forwarded-For获得第一个IP(用,分割)，
     * 如果还不存在则调用Request .getRemoteAddr()。
     *
     * @param request
     * @return
     */
    public static String getIpAddr(HttpServletRequest request) {
        String ip = request.getHeader("X-Real-IP");
        if (!isBlank(ip) && !"unknown".equalsIgnoreCase(ip)) {
            return ip;
        }
        ip = request.getHeader("X-Forwarded-For");
        if (!isBlank(ip) && !"unknown".equalsIgnoreCase(ip)) {
            // 多次反向代理后会有多个IP值，第一个为真实IP。
            int index = ip.indexOf(',');
            if (index != -1) {
                return ip.substring(0, index);
            } else {
                return ip;
            }
        } else {
            return request.getRemoteAddr();
        }
    }

    /**
     * 获得当的访问路径
     * 
     * HttpServletRequest.getRequestURL+"?"+HttpServletRequest.getQueryString
     *
     * @param request
     * @return
     */
    public static String getLocation(HttpServletRequest request) {
        UrlPathHelper helper = new UrlPathHelper();
        StringBuffer buff = request.getRequestURL();
        String uri = request.getRequestURI();
        String origUri = helper.getOriginatingRequestUri(request);
        buff.replace(buff.length() - uri.length(), buff.length(), origUri);
        String queryString = helper.getOriginatingQueryString(request);
        buff.append("?").append(queryString);
        return buff.toString();
    }

}