json串 转 list<class> 方法 List转JSONArray和JSONArray转List

 

1.List转JSONArray

 

List<T> list = new ArrayList<T>();
JSONArray array= JSONArray.parseArray(JSON.toJSONString(list))；

2.JSONArray转List

JSONArray array = new JSONArray();
List<EventColAttr> list = JSONObject.parseArray(array.toJSONString(), EventColAttr.class);

 
3.String转JSONArray

String st = "[{name:Tim,age:25,sex:male},{name:Tom,age:28,sex:male},{name:Lily,age:15,sex:female}]";
JSONArray tableData = JSONArray.parseArray(st);

这是我写的；

  public static List<ProjectRestDTO> setMap(){


        String abc="[{"tenantId":15203,"projectId":328001015203,"marketChannel":33521,"channelType":1,"
            + ""eventList":[{"eventId":357001015203,"price":[1990,2990]}]},{"tenantId":15203,"
            + ""projectId":355001015203,"marketChannel":33521,"channelType":1,"
            + ""eventList":[{"eventId":398001015203,"price":[10000]}]},{"tenantId":15203,"
            + ""projectId":327001015203,"marketChannel":33521,"channelType":1,"
            + ""eventList":[{"eventId":356002015203,"price":[10000]}]},{"tenantId":15203,"
            + ""projectId":212001015203,"marketChannel":33521,"channelType":1,"
            + ""eventList":[{"eventId":224001015203,"price":[100,300]}]},{"tenantId":15203,"
            + ""projectId":366005015203,"marketChannel":33521,"channelType":1,"
            + ""eventList":[{"eventId":414003015203,"price":[1000,2000]}]},{"tenantId":15203,"
            + ""projectId":365006015203,"marketChannel":33521,"channelType":1,"
            + ""eventList":[{"eventId":414006015203,"price":[3000,4000]}]},{"tenantId":15203,"
            + ""projectId":365003015203,"marketChannel":33521,"channelType":1,"
            + ""eventList":[{"eventId":414004015203,"price":[100,200]}]},{"tenantId":15203,"
            + ""projectId":315001015203,"marketChannel":33521,"channelType":1,"
            + ""eventList":[{"eventId":344003015203,"price":[1]},{"eventId":345001015203,"price":[1,"
            + "10000]},{"eventId":345002015203,"price":[10000,15000]}]},{"tenantId":15203,"
            + ""projectId":590001015203,"marketChannel":33521,"channelType":1,"
            + ""eventList":[{"eventId":717001015203,"price":[100,200]},{"eventId":719002015203,"
            + ""price":[100,200]},{"eventId":726002015203,"price":[100,200]}]},"
            + "{"eventList":[{"eventId":287001015203,"price":[100,200,300]}],"marketChannel":33521,"
            + ""tenantId":15203,"channelType":1,"projectId":253003015203}]";

       // List<ProjectRestDTO> nn=new ArrayList<>();
       //
       //ProjectRestDTO aa= assemble();
       //nn.add(aa);
       //EventPriceDTO eventPriceDTO=new EventPriceDTO();
       //eventPriceDTO.setEventId(287001015203L);
       //eventPriceDTO.setPrice(Arrays.asList(100L,200L,300L));
       //
       //ProjectRestDTO projectRestDTO=aa;
       //projectRestDTO.setProjectId(253003015203L);
       //projectRestDTO.setEventList(Arrays.asList(eventPriceDTO));
       //nn.add(projectRestDTO);

        //JSONArray array = new JSONArray();
        List<ProjectRestDTO> list = JSONObject.parseArray(abc, ProjectRestDTO.class);

        //List<ProjectRestDTO> jsonObject =new JSONArray(abc);

        //List<ProjectRestDTO> list = JSONArray.toArray(abc,ProjectRestDTO.class);
        //String aa1 = jsonObject.toString();

        //System.out.println(aa1);


        return list;

    }

参考：List转JSONArray和JSONArray转List