package com.hx.util;

import javax.servlet.http.HttpServletRequest;
import java.io.BufferedReader;
import java.io.IOException;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Map;

/** HttpServletRequestUtil  获取请求中的body
 * @author wangrenhuang
 * @Date 2021-10-19
 */
public class HttpServletRequestUtil {

    /*
    * 获取bady
    * */
    public static String getBody(HttpServletRequest request) {
        BufferedReader br = null;
        StringBuilder sb = new StringBuilder("");
        String str ;
        try {
            br = request.getReader();
            while((str = br.readLine()) != null){
                sb.append(str);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }finally {
            try {
                if (null != br){
                    br.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return sb.toString();
    }


    /*
    *
    * 获取请求头
    * */
    public static Map<String,String> getHeader(HttpServletRequest request) {
        Enumeration<String> enumeration = request.getHeaderNames();
        Map<String,String> map = new HashMap<>(16);
        StringBuffer headers = new StringBuffer();
        while (enumeration.hasMoreElements()) {
            String name = enumeration.nextElement();
            String value = request.getHeader(name);
            map.put(name,value);
        }

        return map;
    }
}