org.teasoft.beex.json.JsonUtil Maven / Gradle / Ivy
/*
* Copyright 2016-2022 the original author.All rights reserved.
* Kingstar([email protected])
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.teasoft.beex.json;
import org.teasoft.honey.osql.core.Logger;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.ObjectMapper;
/**
* Json工具.Json Util.
* @author Kingstar
* @since 2.0
*/
public class JsonUtil {
public static T toEntity(String json, Class clazz) {
try {
if(json==null) return null;
ObjectMapper mapper = new ObjectMapper();
return (T) mapper.readValue(json, clazz);
} catch (Exception e) {
Logger.error(e.getMessage(), e);
}
return null;
}
public static String toJson(Object obj) {
try {
ObjectMapper mapper = new ObjectMapper();
return mapper.writeValueAsString(obj);
} catch (JsonProcessingException e) {
Logger.error(e.getMessage(), e);
}
return null;
}
@SuppressWarnings({ "unchecked", "rawtypes" })
public static T toEntity(String json, Class clazz, Class elementClass) {
try {
if(json==null) return null;
ObjectMapper mapper = new ObjectMapper();
JavaType javaType = mapper.getTypeFactory().constructParametricType(clazz, elementClass);
return (T)mapper.readValue(json, javaType);
} catch (Exception e) {
Logger.error(e.getMessage(), e);
}
return null;
}
}