json转成java对象

avro生成的代码里，String是CharSequence，不能通过Gson反序列化，于是有了下面的代码，ParseArray里还不完善：

 static <T> List<T> parseArray(JSONArray arrary,Class<?> cls) throws IllegalAccessException, InvocationTargetException, NoSuchMethodException, InstantiationException, ClassNotFoundException{
       List<T> result = new ArrayList<T>();
       String className = cls.getName();
       for(int i=0;i<arrary.length();i++){
           if(className.contains("java.lang")){
               if(className.equals("java.lang.CharSequence") ||
                       className.equals("java.lang.String")) {
                   result.add((T) arrary.getString(i));
               }else  if(className.equals("java.lang.Double")) {
                   result.add((T) ((Double)arrary.getDouble(i)));
               }  else  if(className.equals("java.lang.Integer")) {
                   result.add((T) ((Integer)arrary.getInt(i)));
               }  else  if(className.equals("java.lang.Boolean")) {
                   result.add((T) ((Boolean)arrary.getBoolean(i)));
               }
           }else{
               // 解析对象
               result.add((T)json2Bean(arrary.getJSONObject(i),cls));
           }
       }
       return result;
   }

   public static <T> T json2Bean(JSONObject jsonObject, Class<?> cls) throws IllegalAccessException,
   InvocationTargetException, NoSuchMethodException, InstantiationException, ClassNotFoundException {
 //        if (item == null) {
 //          return null;
 //        }
         T item = (T) cls.newInstance();
         Field[] fields = cls.getDeclaredFields();
         for (Field field : fields) {
           String varName = field.getName();
           if (jsonObject.has(varName)) {
               Object value = jsonObject.get(varName); 

              Class<?> currentClass = field.getType();
              if(currentClass.equals(List.class)){
                  JSONArray array = (JSONArray)value;
                 String subClassName = field.getGenericType().toString().replace("java.util.List<", "");
                 subClassName = subClassName.substring(0,subClassName.length()-1);
 //                System.out.println(subClassName);
                 Class<?> clasz =    Class.forName(subClassName);
 //                System.out.println(z.getClass());
                 BeanUtils.setProperty(item, varName, parseArray(array ,clasz));

              }else{
                  if(value instanceof JSONObject){
                      BeanUtils.setProperty(item, varName, json2Bean((JSONObject)value,currentClass));
                  }else{
                     if(value instanceof JSONNull){
                         value = null;
                     }
                    BeanUtils.setProperty(item, varName, value);
                  }
              }
           }else{
               // 设置默认值
               //BeanUtils.setProperty(item, varName, null);
           }
         }
          return item;
     }