java map转json字符串 java map转json对象

JSON.toJSONString是将对象转换成json字符串，map转换如下；

import com.alibaba.fastjson.JSON;
 import com.alibaba.fastjson.serializer.SerializerFeature;
 import java.util.Map;public class JSONUtil {
 public static String parseJSON(Map<String, Object> map){
 map.put(“imagePrefix”, PicUrlUtil.getImagePrefix());
 return JSON.toJSONString(map, SerializerFeature.WriteMapNullValue);
 }
 }