Jsonutils tool class (based on Alibaba fastjson)

1、 introduce maven rely on

<dependency>
  <groupId>com.alibaba</groupId>
  <artifactId>fastjson</artifactId>
  <version>1.2.75</version>
</dependency>

2、 Code

package com.cc.common.utils;

import com.alibaba.druid.util.StringUtils;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import java.util.HashMap;
import java.util.Map;

/**
 * json Tool class 
 * @author cc
 * @data 2021 year 06 month 30 Japan  23:25
 */
public class JSONUtils {

    /**
     * Bean Object turn JSON
     * @param object
     * @param dataFormatString
     * @return
     */
    public static String beanToJson(Object object, String dataFormatString) {
        if (object != null) {
            if (StringUtils.isEmpty(dataFormatString)) {
                return JSONObject.toJSONString(object);
            }
            return JSON.toJSONStringWithDateFormat(object, dataFormatString);
        } else {
            return null;
        }
    }
    
    /**
     * Bean Object turn JSON
     * @param object
     * @return
     */
    public static String beanToJson(Object object) {
        if (object != null) {
            return JSON.toJSONString(object);
        } else {
            return null;
        }
    }
    
    /**
     * String turn JSON character string 
     * @param key
     * @param value
     * @return
     */
    public static String stringToJsonByFastjson(String key, String value) {
        if (StringUtils.isEmpty(key) || StringUtils.isEmpty(value)) {
            return null;
        }
        Map<String, String> map = new HashMap<String, String>();
        map.put(key, value);
        return beanToJson(map, null);
    }
    
    /**
     *  take json Converts a string to an object 
     * @param json
     * @param clazz
     * @return
     */
    public static Object jsonToBean(String json, Object clazz) {
        if (StringUtils.isEmpty(json) || clazz == null) {
            return null;
        }
        return JSON.parseObject(json, clazz.getClass());
    }
    
    /**
     * json String rotation map
     * @param json
     * @return
     */
    @SuppressWarnings("unchecked")
    public static Map<String, Object> jsonToMap(String json) {
        if (StringUtils.isEmpty(json)) {
            return null;
        }
        return JSON.parseObject(json, Map.class);
    }
}