Class CommonUtils

src/main/java/com/droplab/Utils/CommonUtils.java:10–143

import java.util.Random;

public class CommonUtils {
    public static HashMap hashMapClone(HashMap source,HashMap destination){
        if(!source.isEmpty()){
            destination.clear();
            Iterator iterator = source.keySet().iterator();
            while (iterator.hasNext()){
                String key= (String) iterator.next();
                destination.put(key,source.get(key));
            }
            return destination;
        }
        return new HashMap();
    }

    public static Model modelSet(HashMap<String,String> hashMap,Model model){
        if(!hashMap.isEmpty()){
            Iterator<String> iterator = hashMap.keySet().iterator();
            while (iterator.hasNext()){
                String key=iterator.next();
                model.addAttribute(key,hashMap.get(key));
            }
        }
        if(InfoUtils.openProxy){  //自动加上代理设置
            model.addAttribute("proxyset",String.format("proxy->%s://%s:%s@%s:%s",
                    InfoUtils.ProxyType,InfoUtils.ProxyUsername,InfoUtils.ProxyPassword,InfoUtils.ProxyHost,InfoUtils.ProxyPort));
        }
        return model;
    }

    /**
     * 随机数生成
     * @return
     */
    public static String Random(){
        String random = String.valueOf(Math.random());
        random = random.substring(random.length() - 8, random.length());
        return random;
    }

    /**
     * 随机字符串生成
     * @param bit
     * @return
     */
    public static String RandomStr(int bit){ //随机字符串生成
        String str="abcdefhijklmnopqrstuvwxyzABCDEFHIJKLMNOPQRSTUVWXYZ";
        Random rand=new Random();
        StringBuffer buffer = new StringBuffer();
        for (int i = 0; i < bit; i++) {
            int anInt = rand.nextInt(str.length());
            buffer.append(str.charAt(anInt));
        }
        return buffer.toString();
    }

    /**
     * 字节数组转16进制
     * @param bytes