应该是这么个形式

{"collectionDtoList":[{"collectionType":1,"typeId":3}]}

使用javabean进行解析对应

import java.util.List;

public class CancelCollectBean {

    private List<CollectionDtoListDTO> collectionDtoList;

    public List<CollectionDtoListDTO> getCollectionDtoList() {
        return collectionDtoList;
    }

    public void setCollectionDtoList(List<CollectionDtoListDTO> collectionDtoList) {
        this.collectionDtoList = collectionDtoList;
    }

    public static class CollectionDtoListDTO {
        private int collectionType;
        private int typeId;

        public int getCollectionType() {
            return collectionType;
        }

        public void setCollectionType(int collectionType) {
            this.collectionType = collectionType;
        }

        public int getTypeId() {
            return typeId;
        }

        public void setTypeId(int typeId) {
            this.typeId = typeId;
        }
    }
}

参数组装

List<CancelCollectBean.CollectionDtoListDTO> collectionDtoList = new ArrayList<>();
                            CancelCollectBean.CollectionDtoListDTO collectionDtoListDTO = new CancelCollectBean.CollectionDtoListDTO();
                            collectionDtoListDTO.setCollectionType(1);
                            Log.e("wy", "156onItemClick: "+records.get(position).getTypeId() );
                            collectionDtoListDTO.setTypeId(records.get(position).getTypeId());
                            collectionDtoList.add(collectionDtoListDTO);