JsonUtils.java

package org.nafmii.utils;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.serializer.JSONLibDataFormatSerializer;
import com.alibaba.fastjson.serializer.SerializeConfig;
import com.alibaba.fastjson.serializer.SerializerFeature;

/**
 * Created by zhangzhenfang on 2018/6/5.
 */
public class JsonUtils {

    private static final SerializeConfig config;

    static {
        config = new SerializeConfig();
        config.put(java.util.Date.class, new JSONLibDataFormatSerializer()); // 使用和json-lib兼容的日期输出格式
        config.put(java.sql.Date.class, new JSONLibDataFormatSerializer()); // 使用和json-lib兼容的日期输出格式
    }

    private static final SerializerFeature[] features = {SerializerFeature.WriteMapNullValue, // 输出空置字段
            SerializerFeature.WriteNullListAsEmpty, // list字段如果为null，输出为[]，而不是null
            SerializerFeature.WriteNullNumberAsZero, // 数值字段如果为null，输出为0，而不是null
            SerializerFeature.WriteNullBooleanAsFalse, // Boolean字段如果为null，输出为false，而不是null
            SerializerFeature.WriteNullStringAsEmpty // 字符类型字段如果为null，输出为""，而不是null
    };

    public static String toJsonString(Object object) {
        return JSON.toJSONString(object, config, features);
    }

//    public static String toJSONNoFeatures(Object object) {
//        return JSON.toJSONString(object, config);
//    }



    public static Object parse(String text) {
        return JSON.parse(text);
    }

    public static <T> T parse(String text, Class<T> clazz) {
        return JSON.parseObject(text, clazz);
    }
}