package com.nationalelectric.greenH5;

import java.security.NoSuchAlgorithmException;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import java.util.SortedMap;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import com.nationalelectirc.utils.MD5Util;


public class MD5SignUtil {

//	public static void main(String[] args) throws UnsupportedEncodingException, NoSuchAlgorithmException {
//		SortedMap<String, String> alarmParams = new TreeMap<String, String>();
//        //user basic information
//        alarmParams.put("mobile", "13789096789");
//        String real_name = "张三";
//        if(isContainChinese(real_name))
//        	real_name=java.net.URLEncoder.encode(real_name, "utf-8");
//        alarmParams.put("real_name", real_name);
//        alarmParams.put("meal_no", "8902132");
//        alarmParams.put("status", "0");
//        alarmParams.put("operate", "0");
//        String department_name="后勤部";
//        if(isContainChinese(department_name))
//        	department_name=java.net.URLEncoder.encode(department_name, "utf-8");
//        alarmParams.put("department_name", department_name);
//        String sign = createSign(alarmParams);
//        System.out.println(sign);
//	}
	
    @SuppressWarnings("rawtypes")
	public static String createSign(SortedMap<String,String> parameters) throws NoSuchAlgorithmException{
        StringBuffer sb = new StringBuffer();
        Set es = parameters.entrySet();
        Iterator it = es.iterator();
        while(it.hasNext()) {
            Map.Entry entry = (Map.Entry)it.next();
            String k = (String)entry.getKey();
            Object v = entry.getValue();
            if(null != v && !"".equals(v) 
                    && !"sign".equals(k) && !"key".equals(k)) {
                sb.append(k.toLowerCase() + "=" + v + "&");
            }
        }
        String string = sb.toString();
        string=string.substring(0, string.length()-1);
        String sign = MD5Util.getMD5(string);
        return sign;
    }
    
	/**
	 * 判断字符串中是否包含中文
	 * 
	 * @param str
	 *            待校验字符串
	 * @return 是否为中文
	 * @warn 不能校验是否为中文标点符号
	 */
	public static boolean isContainChinese(String str) {
		Pattern p = Pattern.compile("[\u4e00-\u9fa5]");
		Matcher m = p.matcher(str);
		if (m.find()) {
			return true;
		}
		return false;
	}
	
	
}