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;  
    }