cn.jiangzeyin.controller.base.RequestUtil Maven / Gradle / Ivy
package cn.jiangzeyin.controller.base;
import cn.jiangzeyin.StringUtil;
import javax.servlet.http.Cookie;
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 (StringUtil.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 (StringUtil.isEmpty(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 (!arrSplitEqual[0].equals("")) {
//只有参数没有值，不加入
mapRequest.put(arrSplitEqual[0], "");
}
}
}
return mapRequest;
}
/**
* @param request req
* @param name name
* @return cookie
* @author jiangzeyin
*/
public static Cookie getCookieByName(HttpServletRequest request, String name) {
Map cookieMap = readCookieMap(request);
return cookieMap.getOrDefault(name, null);
}
/**
* @param request req
* @return map
* @author jiangzeyin
*/
private static Map readCookieMap(HttpServletRequest request) {
Map cookieMap = new HashMap<>();
Cookie[] cookies = request.getCookies();
if (null != cookies) {
for (Cookie cookie : cookies) {
cookieMap.put(cookie.getName(), cookie);
}
}
return cookieMap;
}
/**
* 获取headr
*
* @param request req
* @return map
* @author jiangzeyin
*/
public static Map getHeaderMapValues(HttpServletRequest request) {
Enumeration enumeration = request.getHeaderNames();
Map headerMapValues = new HashMap<>();
if (enumeration != null)
for (; enumeration.hasMoreElements(); ) {
String name = enumeration.nextElement();
headerMapValues.put(name, request.getHeader(name));
}
return headerMapValues;
}
}