fastjson工具类

package util;import com.alibaba.fastjson.JSON;import com.alibaba.fastjson.JSONArray;import com.alibaba.fastjson.JSONObject;import com.alibaba.fastjson.serializer.JSONLibDataFormatSerializer;import com.alibaba.fastjson.serializer.SerializeConfig;import com.alibaba.fastjson.serializer.SerializerFeature;import com.sun.org.apache.xml.internal.security.keys.content.KeyValue;import java.util.List;import java.util.Map;/*** @Author: REN* @Description:* @Date: Created in 1:46 2018/3/14*/public class JsonUtil {
        private static final SerializeConfig config;    static {        config = new SerializeConfig();        config.put(java.util.Date.class, new JSONLibDataFormatSerializer()); // 使用和json-lib兼容的日期输出格式        config.put(java.sql.Date.class, new JSONLibDataFormatSerializer()); // 使用和json-lib兼容的日期输出格式    }    private static final SerializerFeature[] features = {SerializerFeature.WriteMapNullValue, // 输出空置字段            SerializerFeature.WriteNullListAsEmpty, // list字段如果为null，输出为[]，而不是null            SerializerFeature.WriteNullNumberAsZero, // 数值字段如果为null，输出为0，而不是null            SerializerFeature.WriteNullBooleanAsFalse, // Boolean字段如果为null，输出为false，而不是null            SerializerFeature.WriteNullStringAsEmpty // 字符类型字段如果为null，输出为""，而不是null    };    public static String toJSONString(Object object) {        return JSON.toJSONString(object, config, features);    }    public static String toJSONNoFeatures(Object object) {        return JSON.toJSONString(object, config);    }    public static Object toBean(String text) {        return JSON.parse(text);    }    public static 
    
      T toBean(String text, Class
     
       clazz) {        return JSON.parseObject(text, clazz);    }    // 转换为数组    public static 
      
        Object[] toArray(String text) {        return toArray(text, null);    }    // 转换为数组    public static 
       
         Object[] toArray(String text, Class
        
          clazz) {        return JSON.parseArray(text, clazz).toArray();    }    // 转换为List    public static 
         
           List
          
            toList(String text, Class
           
             clazz) { return JSON.parseArray(text, clazz); } /** * 将javabean转化为序列化的json字符串 * @param keyvalue * @return */ public static Object beanToJson(KeyValue keyvalue) { String textJson = JSON.toJSONString(keyvalue); Object objectJson = JSON.parse(textJson); return objectJson; } /** * 将string转化为序列化的json字符串 * @param keyvalue * @return */ public static Object textToJson(String text) { Object objectJson = JSON.parse(text); return objectJson; } /** * json字符串转化为map * @param s * @return */ public static Map stringToCollect(String s) { Map m = JSONObject.parseObject(s); return m; } /** * 将map转化为string * @param m * @return */ public static String collectToString(Map m) { String s = JSONObject.toJSONString(m); return s; } public static String listToJsonArray(List list){ String s = JSONArray.toJSONString(list); return s; }}