cn.jiangzeyin.controller.base.RequestUtil Maven / Gradle / Ivy

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package cn.jiangzeyin.controller.base;

import cn.hutool.core.util.StrUtil;

import javax.servlet.http.HttpServletRequest;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Map;

/**
 * 请求工具类
 *
 * @author jiangzeyin
 */
public final class RequestUtil {
    /**
     * 更加url 获取get 参数
     *
     * @param url url
     * @return map
     * @throws UnsupportedEncodingException 编码异常
     */
    public static Map convertUrlMap(String url) throws UnsupportedEncodingException {
        if (StrUtil.isEmpty(url)) {
            return null;
        }
        Map mapRequest = new HashMap<>();
        url = url.trim().toLowerCase();
        String[] arrSplit = url.split("[?]");
        if (arrSplit.length <= 1) {
            return mapRequest;
        }
        String allParam = arrSplit[1];
        if (StrUtil.isBlank(allParam)) {
            return mapRequest;
        }
        arrSplit = allParam.split("[&]");
        for (String strSplit : arrSplit) {
            String[] arrSplitEqual = strSplit.split("[=]");
            //解析出键值
            if (arrSplitEqual.length > 1) {
                //正确解析
                mapRequest.put(arrSplitEqual[0], URLDecoder.decode(arrSplitEqual[1], "UTF-8"));
            } else {
                if (!"".equals(arrSplitEqual[0])) {
                    //只有参数没有值，不加入
                    mapRequest.put(arrSplitEqual[0], "");
                }
            }
        }
        return mapRequest;
    }


    /**
     * 获取header
     *
     * @param request req
     * @return map
     * @author jiangzeyin
     */
    public static Map getHeaderMapValues(HttpServletRequest request) {
        Enumeration enumeration = request.getHeaderNames();
        Map headerMapValues = new HashMap<>(20);
        if (enumeration != null) {
            for (; enumeration.hasMoreElements(); ) {
                String name = enumeration.nextElement();
                headerMapValues.put(name, request.getHeader(name));
            }
        }
        return headerMapValues;
    }
}