json与Java对象转换适配器

import com.alibaba.fastjson.JSONObject;
import lombok.extern.slf4j.Slf4j;

import java.util.Map;

/**
 * by Chris
 */
@Slf4j
public class FieldAdapter {

    /**
     * json对象适配器
     *
     * @param jsonObject 接口中返回的json数据
     * @param link       对象属性对应的json中的键（key:对象的属性名，value:json的属性名）
     * @param c          最终要生成的对象
     * @param <T>
     * @return
     */
    public <T> T filter(JSONObject jsonObject, Map<String, String> link, Class<T> c) {
        try {
            T t = c.newInstance();
            for (String key : link.keySet()) {
                Object val = jsonObject.get(link.get(key));
                try {
                    c.getMethod("set" + key.substring(0, 1).toUpperCase() + key.substring(1), String.class)
                            .invoke(t, val.toString());
                } catch (NoSuchMethodException e) {
                    log.info(e.toString());
                }
            }
            return t;
        } catch (Exception e) {
            log.info("属性适配失败:", e);
        }
        return null;
    }

}

那就赶快测试一下吧

    public static void main(String[] args) {
        Map link = Maps.newHashMap();
        link.put("accessToken", "access_token");
        link.put("refreshToken", "refresh_token");
        link.put("idToken", "id_token");
        link.put("tokenType", "token_type");
        link.put("scope", "scope");
        link.put("a", "b");

        JSONObject jsonObject = new JSONObject();
        jsonObject.put("access_token", "423");
        jsonObject.put("refresh_token", "64576");
        jsonObject.put("id_token", "adgfgsdfg");
        jsonObject.put("token_type", "dsfgsfhaz");
        jsonObject.put("scope", "adsDASD");
        FieldAdapter fieldAdapter = new FieldAdapter();
        AuthToken authToken = fieldAdapter.filter(JsonParserUtil.parser(jsonObject), link, AuthToken.class);
        System.out.println(authToken);
    }