com.codemacro.jcm.util.JsonUtil.java Source code

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Here is the source code for com.codemacro.jcm.util.JsonUtil.java

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/*******************************************************************************
 *  Copyright Kevin Lynx (kevinlynx@gmail.com) 2015
 *
 *    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 com.codemacro.jcm.util;

import java.io.IOException;

import com.fasterxml.jackson.annotation.JsonInclude.Include;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;

public class JsonUtil {

    public static String toString(Object obj) {
        ObjectMapper mapper = new ObjectMapper();
        mapper.setSerializationInclusion(Include.NON_NULL);
        String json = "";
        try {
            json = mapper.writeValueAsString(obj);
        } catch (IOException e) {
            e.printStackTrace();
        }
        return json;
    }

    public static <T> T fromString(String str, Class<T> clazz) throws IOException {
        ObjectMapper mapper = new ObjectMapper();
        return mapper.readValue(str, clazz);
    }

    public static <T> T fromString(String str, TypeReference<T> tref) throws IOException {
        ObjectMapper mapper = new ObjectMapper();
        return mapper.readValue(str, tref);
    }
}