json处理由fastjson换jackjson

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fastjson没有jackjson稳定，所以换成jackjson来处理对象转json和json转对象问题。

首先下载jackjson包，三个都要引用
在这里插入图片描述

然后修改实现类

package JRT.Core.Util;import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializerProvider;import java.io.IOException;
import java.lang.reflect.Field;import static org.apache.logging.log4j.message.MapMessage.MapFormat.JSON;/*** json工具类，处理对象和json*/
public class JsonUtil {/*** Object对象转Json串** @param object* @return*/public static String Object2Json(Object object) throws Exception {ObjectMapper objectMapper = new ObjectMapper();return objectMapper.writeValueAsString(object);}/*** Object转Json串** @param object     对象* @param null2empty null值是否转空""* @return*/public static String Object2Json(Object object, boolean null2empty) throws Exception {if (!null2empty) {ObjectMapper objectMapper = new ObjectMapper();return objectMapper.writeValueAsString(object);} else {ObjectMapper objectMapper = new ObjectMapper();objectMapper.getSerializerProvider().setNullValueSerializer(new JsonSerializer<Object>() {@Overridepublic void serialize(Object o, JsonGenerator jsonGenerator, SerializerProvider serializerProvider) throws IOException {jsonGenerator.writeString("");}});return objectMapper.writeValueAsString(object);}}/*** Json串转Object** @param json json串* @param c    类型* @return*/public static Object Json2Object(String json, Class c) throws Exception {if (json.isEmpty()) {return null;} else {ObjectMapper objectMapper = new ObjectMapper();objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);return objectMapper.readValue(json, c);}}/*** 克隆一个对象** @param obj 要克隆的对象* @return*/public static Object CloneObject(Object obj) throws Exception {if (obj==null) {return null;}else {ObjectMapper objectMapper = new ObjectMapper();objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);String json=Object2Json(obj);return objectMapper.readValue(json, obj.getClass());}}
}

老的fastjson的包装

package JRT.Core.Util;import com.alibaba.fastjson.JSONObject;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.serializer.SerializerFeature;import java.lang.reflect.Field;/*** json工具类，处理对象和json*/
public class JsonUtil
{/*** Object对象转Json串* @param object* @return*/public static String Object2Json(Object object){return JSONObject.toJSONString(object, SerializerFeature.PrettyFormat);}/*** Object转Json串* @param object 对象* @param null2empty null值是否转空""* @return*/public static String Object2Json(Object object, boolean null2empty){if (!null2empty){return JSON.toJSONString(object);}else{return JSON.toJSONString(object, SerializerFeature.WriteNullStringAsEmpty, SerializerFeature.PrettyFormat);}}/*** Json串转Object* @param json json串* @param c 类型* @return*/public static Object Json2Object(String json,Class c){if (json.isEmpty()){return null;}else{return JSON.parseObject(json,c);}}
}