Java中Gosn 基本用法总结

我就是我 2022-05-29 02:13 628阅读 0赞

SerializeUtil.java

链接：[http://blog.csdn.net/a249900679/article/details/51385913][http_blog.csdn.net_a249900679_article_details_51385913]

package cn.temptation.util;
    
    import java.lang.reflect.Type;
    import java.util.List;
    import java.util.Map;
    
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    
    import com.google.gson.Gson;
    import com.google.gson.GsonBuilder;
    import com.google.gson.reflect.TypeToken;
    
    /**
     * 序列化对象工具类，用于保存和读取redis数据使用
     * Function:
     * Date: 2017年5月16日
     */
    public class SerializeUtil  {
    
        private static Logger log = LoggerFactory.getLogger(SerializeUtil.class);  
    
        /**
         * 将对象转换为json数据 
         * @param list
         * @return
         */
        private String objectToJson(Object obj) {   
        	Gson gson = new Gson();
            return gson.toJson(obj);  
        }  
        
        /**
         * 将json转换为对象数据 
         * @param list
         * @return
         */
        private Object jsonToObject(String str) {  
        	Gson gson = new Gson();
        	Object beanOne = gson.fromJson(str, Object.class);
        	return beanOne;  
        }  
        
        
        
        /**
         * List<Object>对象转json
         * @param list
         * @return
         */
        public static String getJsonData(List<?> list) {
        	  Gson gson = new Gson();
        	  String jsonstring = gson.toJson(list);
        	  return jsonstring;
        }
        /**
         * json对象转List<Object>
         * @param list
         * @return
         */
        public static List<?> getListData(String str) {
        	Gson gson = new Gson();
        	List<?> retList = gson.fromJson(str,new TypeToken<List<?>>() {}.getType()); 
        	return retList;
        }
        
        
        
        /**
         * map转Json
         * @return
         */
        private String getMapToString(Map<String, ?>  map) {  
            Gson gson = new GsonBuilder().enableComplexMapKeySerialization().create();  
            return gson.toJson(map);  
        }  
        /**
         * Json转 map
         * @return
         */
        private Map<String, ?>  getStringToMap(String str) {
        	Gson gson = new GsonBuilder().enableComplexMapKeySerialization().create();  
            Type type = new TypeToken<Map<String, ?>>() {}.getType();  
            Map<String, ?> map = gson.fromJson(str, type);  
            return map;  
        }  
    
    }

[http_blog.csdn.net_a249900679_article_details_51385913]: http://blog.csdn.net/a249900679/article/details/51385913