合并数组和map转化为对象的方法

1.合并数组

   //数组合并
    public String[] mergeArr(String[] str1,String[] str2){
        int str1Length = str1.length;
        int str2Length = str2.length;
        //数组扩容 合并两个数组
        str1 = Arrays.copyOf(str1, str1Length+str2Length);
        System.arraycopy(str2, 0, str1, str1Length,str2Length );
        return str1;
    }

2.map 对象转为对象

//将map对象转换对象
    public static Object mapToObject(Map map, Class beanClass) throws Exception {
         if (map == null) {
             return null;
         }
         Object obj = beanClass.newInstance();
         Field[] fields = obj.getClass().getDeclaredFields();
         for (Field field : fields) {
                int mod = field.getModifiers();
        if(Modifier.isStatic(mod) || Modifier.isFinal(mod)){
        continue;
                     }
                 field.setAccessible(true);
                 field.set(obj, map.get(field.getName()));
           }
         return obj;
     }

3.JOSN转对象

import com.alibaba.fastjson.JSON;

   public Object map2Object(Map map,Class beanClass){
       JSONObject jsonObject = new JSONObject(map);
       Object t = JSONObject.parseObject(String.valueOf(jsonObject),beanClass);
       return t;
     }