//Json converter to object
TouBaoTXTpaicResponse touBaoTXTpaicResponse = JSON.parseObject(json.toJSONString(), TouBaoTXTpaicResponse.class, (ExtraProcessor) (object, key, value) -> {
    if (object != null && object instanceof PolicyResponse) {
        PolicyResponse response = (PolicyResponse) object;
        if (response.getElPolicyAddress() != null) {
            response.setElPolicyAddress(response.getElPolicyAddress().replaceAll("&", "&"));
            object = response;
        }
    }
});

public static Object serializeFieldNameToUpAndGetObject(Object o) {

    if (o == null) {
        throw new IllegalArgumentException("参数为空！");
    }


    return JSON.parse(JSON.toJSONString(o, new PascalNameFilter() {

        @Override
        public String process(Object source, String name, Object value) {

            //序列化json串的时候把所有字段的第一个字母大写
            name = StringUtils.capitalize(name);

            return super.process(source, name, value);
        }

    }).getBytes());

}