JSON解析與改造 - 模型架構

方法拋出 '顯示java.lang.NullPointerException' 例外。無法評估pl.netizens.eonbeacon.storage.EonBeaconModel.toString（）

我嘗試解析JSON與改造。我從服務器看起來像這樣得到JSON：

{ 
    "data": { 
    "list": [ 
     { 
     "id": 58, 
     "beacon_id": "58", 
     "bridge_id": null, 
     "mesh_id": null, 
     "name": "eon_3c", 
     "location": "abcdlk", 
     "mac_address": "3c:cf:82:8a:e7:fe", 
     "firmware": "2.1", 
     "pcb_revision": "2.0", 
     "battery_level": "99", 
     "password": "0000", 
     "ib": { 
      "turn_on": "1", 
      "major": "33", 
      "minor": "344", 
      "tx_power": "7", 
      "interval": "400", 
      "uuid": "dae19960-18ea-11e5-8ff0-0002a5d5c521", 
      "secure_uuid": "0" 
     }, 
     "euid": { 
      "turn_on": "0", 
      "namespace": null, 
      "instance": null, 
      "tx_power": null, 
      "interval": null 
     }, 
     "eeid": { 
      "turn_on": "0", 
      "tx_power": null, 
      "interval": null 
     }, 
     "eurl": { 
      "turn_on": "0", 
      "tx_power": null, 
      "interval": null, 
      "url": null 
     }, 
     "etlm": { 
      "turn_on": "0", 
      "tx_power": null, 
      "interval": null 
     }, 
     "assigned_bridge_id": null 
     }, 
     { 
     "id": 56, 
     "beacon_id": "56", 
     "bridge_id": null, 
     "mesh_id": null, 
     "name": "Eon_e6", 
     "location": "test", 
     "mac_address": "e6:f5:8a:94:b8:c7", 
     "firmware": "2.1", 
     "pcb_revision": "2.0", 
     "battery_level": null, 
     "password": "0000", 
     "ib": { 
      "turn_on": "1", 
      "major": "2591", 
      "minor": "0", 
      "tx_power": "10", 
      "interval": "2593", 
      "uuid": "dae19960-18ea-11e5-8ff0-0002a5d5c521", 
      "secure_uuid": "0" 
     }, 
     "euid": { 
      "turn_on": "0", 
      "namespace": null, 
      "instance": null, 
      "tx_power": null, 
      "interval": null 
     }, 
     "eeid": { 
      "turn_on": "0", 
      "tx_power": null, 
      "interval": null 
     }, 
     "eurl": { 
      "turn_on": "0", 
      "tx_power": null, 
      "interval": null, 
      "url": null 
     }, 
     "etlm": { 
      "turn_on": "0", 
      "tx_power": null, 
      "interval": null 
     }, 
     "assigned_bridge_id": null 
     }, 
     { 
     "id": 57, 
     "beacon_id": "57", 
     "bridge_id": "13", 
     "mesh_id": "278", 
     "name": "Marta B", 
     "location": "lk", 
     "mac_address": "e1:4b:64:c3:80:e2", 
     "firmware": "2.1", 
     "pcb_revision": "2.0", 
     "battery_level": "97", 
     "password": "0000", 
     "ib": { 
      "turn_on": "1", 
      "major": "325", 
      "minor": "10", 
      "tx_power": "8", 
      "interval": "610", 
      "uuid": "dae19960-18ea-11e5-8ff0-0002a5d5c521", 
      "secure_uuid": "0" 
     }, 
     "euid": { 
      "turn_on": "0", 
      "namespace": null, 
      "instance": null, 
      "tx_power": null, 
      "interval": null 
     }, 
     "eeid": { 
      "turn_on": "0", 
      "tx_power": null, 
      "interval": null 
     }, 
     "eurl": { 
      "turn_on": "0", 
      "tx_power": null, 
      "interval": null, 
      "url": null 
     }, 
     "etlm": { 
      "turn_on": "0", 
      "tx_power": null, 
      "interval": null 
     }, 
     "assigned_bridge_id": null 
     } 
    ] 
    }, 
    "ver": 1, 
    "time": 1475671202, 
    "status": 1, 
    "status_msg": "" 
}

我的根響應等級如下所示：

public class BasicResponse<T> { 
    @Expose 
    public T data; 
    @Expose 
    public int ver; 
    @Expose 
    public long time; 
    @Expose 
    public byte status; 
    @Expose 
    public String status_msg; 
}

那一刻，一切都看起來不錯。現在，我嘗試解析數據：

public class BeaconResponse { 
    @Expose 
    public int id; 
    @Expose 
    public long beacon_id; 
    @Expose 
    public long bridge_id; 
    @Expose 
    public long mesh_id; 
    @Expose 
    public String name; 
    @Expose 
    public String location; 
    @Expose 
    public String mac_address; 
    @Expose 
    public String firmware; 
    @Expose 
    public String pcb_revision; 
    @Expose 
    public byte battery_level; 
    @Expose 
    public String password; 
    @Expose 
    @SerializedName("ib") 
    public Ib ib; 
    @Expose 
    @SerializedName("euid") 
    public Euid euid; 
    @SerializedName("eeid") 
    @Expose 
    public Eeid eeid; 
    @SerializedName("eurl") 
    @Expose 
    public Eurl eurl; 
    @SerializedName("etlm") 
    @Expose 
    public Etlm etlm; 
    @Expose 
    public int assigned_bridge_id;

問題開始。一切都解析得很好，除了對象 - euid，eeid，eurl，etlm，ib。當我改變他們的類名稱retrofit解析一切都很好，除了他們 - 他們是空的。當我改變類名與JSON中的鍵匹配時，我有改進錯誤。我使用了POJO，它創建了與我的類非常相似的類。任何想法是哪裏的問題？：/

這裏是我的改裝電話：

@Subscribe 
    public void getUserBeacons(GetBeaconsListCommand command) { 
     Callback<BasicResponse<BeaconsListResponse>> callback = new Callback<BasicResponse<BeaconsListResponse>>() { 
      @Override 
      public void success(BasicResponse<BeaconsListResponse> basicResponse, Response response) { 
       if (ResponseStatus.SUCCESS.statusCode == basicResponse.status) 
        EventBus.post(new BeaconsListFetchedEvent(basicResponse.data)); 
       else 
        EventBus.post(new NetworkFailureEvent(ResponseStatus.getByStatus(basicResponse.status), basicResponse.status_msg)); 
      } 

      @Override 
      public void failure(RetrofitError error) { 
      } 
     }; 
     service.beaconsList(callback); 
    }

EUID，Eeid型號：

public class EuidModel extends Model { 

    @Expose 
    public boolean turn_on; 
    @Expose 
    public String namespace; 
    @Expose 
    public String instance; 
    @Expose 
    public int tx_power; 
    @Expose 
    public long interval; 

    public boolean isTurn_on() { 
     return turn_on; 
    } 

    public void setTurn_on(boolean turn_on) { 
     this.turn_on = turn_on; 
    } 

    public String getNamespace() { 
     return namespace; 
    } 

    public void setNamespace(String namespace) { 
     this.namespace = namespace; 
    } 

    public String getInstance() { 
     return instance; 
    } 

    public void setInstance(String instance) { 
     this.instance = instance; 
    } 

    public int getTx_power() { 
     return tx_power; 
    } 

    public void setTx_power(int tx_power) { 
     this.tx_power = tx_power; 
    } 

    public long getInterval() { 
     return interval; 
    } 

    public void setInterval(long interval) { 
     this.interval = interval; 
    } 


    private Map<String, Object> additionalProperties = new HashMap<String, Object>(); 

    public Map<String, Object> getAdditionalProperties() { 
     return this.additionalProperties; 
    } 

    public void setAdditionalProperty(String name, Object value) { 
     this.additionalProperties.put(name, value); 
    } 
public class EeidModel extends Model { 

    @Column 
    public boolean turn_on; 
    @Column 
    public int tx_power; 
    @Column 
    public int interval; 
    private Map<String, Object> additionalProperties = new HashMap<String, Object>(); 

    public Map<String, Object> getAdditionalProperties() { 
     return this.additionalProperties; 
    } 

    public void setAdditionalProperty(String name, Object value) { 
     this.additionalProperties.put(name, value); 
    }

來源

2016-10-07 Bartos

你可能想記錄'RetrofitError'，然後加入你的問題 –

什麼是'BeaconsListResponse'？ –

public class BeaconsListResponse { @Expose public List list; } – Bartos

嘗試這種模式，我相信它會工作得很好，那麼： -

public class model { 

    private DataBean data; 

    private int ver; 
    private int time; 
    private int status; 
    private String status_msg; 

    public DataBean getData() { 
     return data; 
    } 

    public void setData(DataBean data) { 
     this.data = data; 
    } 

    public int getVer() { 
     return ver; 
    } 

    public void setVer(int ver) { 
     this.ver = ver; 
    } 

    public int getTime() { 
     return time; 
    } 

    public void setTime(int time) { 
     this.time = time; 
    } 

    public int getStatus() { 
     return status; 
    } 

    public void setStatus(int status) { 
     this.status = status; 
    } 

    public String getStatus_msg() { 
     return status_msg; 
    } 

    public void setStatus_msg(String status_msg) { 
     this.status_msg = status_msg; 
    } 

    private static class DataBean { 

     private List<ListBean> list; 

     public List<ListBean> getList() { 
      return list; 
     } 

     public void setList(List<ListBean> list) { 
      this.list = list; 
     } 

     static class ListBean { 
      private int id; 
      private String beacon_id; 
      private Object bridge_id; 
      private Object mesh_id; 
      private String name; 
      private String location; 
      private String mac_address; 
      private String firmware; 
      private String pcb_revision; 
      private String battery_level; 
      private String password; 

      private IbBean ib; 

      private EuidBean euid; 

      private EeidBean eeid; 

      private EurlBean eurl; 

      private EtlmBean etlm; 
      private Object assigned_bridge_id; 

      public int getId() { 
       return id; 
      } 

      public void setId(int id) { 
       this.id = id; 
      } 

      public String getBeacon_id() { 
       return beacon_id; 
      } 

      public void setBeacon_id(String beacon_id) { 
       this.beacon_id = beacon_id; 
      } 

      public Object getBridge_id() { 
       return bridge_id; 
      } 

      public void setBridge_id(Object bridge_id) { 
       this.bridge_id = bridge_id; 
      } 

      public Object getMesh_id() { 
       return mesh_id; 
      } 

      public void setMesh_id(Object mesh_id) { 
       this.mesh_id = mesh_id; 
      } 

      public String getName() { 
       return name; 
      } 

      public void setName(String name) { 
       this.name = name; 
      } 

      public String getLocation() { 
       return location; 
      } 

      public void setLocation(String location) { 
       this.location = location; 
      } 

      public String getMac_address() { 
       return mac_address; 
      } 

      public void setMac_address(String mac_address) { 
       this.mac_address = mac_address; 
      } 

      public String getFirmware() { 
       return firmware; 
      } 

      public void setFirmware(String firmware) { 
       this.firmware = firmware; 
      } 

      public String getPcb_revision() { 
       return pcb_revision; 
      } 

      public void setPcb_revision(String pcb_revision) { 
       this.pcb_revision = pcb_revision; 
      } 

      public String getBattery_level() { 
       return battery_level; 
      } 

      public void setBattery_level(String battery_level) { 
       this.battery_level = battery_level; 
      } 

      public String getPassword() { 
       return password; 
      } 

      public void setPassword(String password) { 
       this.password = password; 
      } 

      public IbBean getIb() { 
       return ib; 
      } 

      public void setIb(IbBean ib) { 
       this.ib = ib; 
      } 

      public EuidBean getEuid() { 
       return euid; 
      } 

      public void setEuid(EuidBean euid) { 
       this.euid = euid; 
      } 

      public EeidBean getEeid() { 
       return eeid; 
      } 

      public void setEeid(EeidBean eeid) { 
       this.eeid = eeid; 
      } 

      public EurlBean getEurl() { 
       return eurl; 
      } 

      public void setEurl(EurlBean eurl) { 
       this.eurl = eurl; 
      } 

      public EtlmBean getEtlm() { 
       return etlm; 
      } 

      public void setEtlm(EtlmBean etlm) { 
       this.etlm = etlm; 
      } 

      public Object getAssigned_bridge_id() { 
       return assigned_bridge_id; 
      } 

      public void setAssigned_bridge_id(Object assigned_bridge_id) { 
       this.assigned_bridge_id = assigned_bridge_id; 
      } 

      static class IbBean { 
       private String turn_on; 
       private String major; 
       private String minor; 
       private String tx_power; 
       private String interval; 
       private String uuid; 
       private String secure_uuid; 

       public String getTurn_on() { 
        return turn_on; 
       } 

       public void setTurn_on(String turn_on) { 
        this.turn_on = turn_on; 
       } 

       public String getMajor() { 
        return major; 
       } 

       public void setMajor(String major) { 
        this.major = major; 
       } 

       public String getMinor() { 
        return minor; 
       } 

       public void setMinor(String minor) { 
        this.minor = minor; 
       } 

       public String getTx_power() { 
        return tx_power; 
       } 

       public void setTx_power(String tx_power) { 
        this.tx_power = tx_power; 
       } 

       public String getInterval() { 
        return interval; 
       } 

       public void setInterval(String interval) { 
        this.interval = interval; 
       } 

       public String getUuid() { 
        return uuid; 
       } 

       public void setUuid(String uuid) { 
        this.uuid = uuid; 
       } 

       public String getSecure_uuid() { 
        return secure_uuid; 
       } 

       public void setSecure_uuid(String secure_uuid) { 
        this.secure_uuid = secure_uuid; 
       } 
      } 

      static class EuidBean { 
       private String turn_on; 
       private Object namespace; 
       private Object instance; 
       private Object tx_power; 
       private Object interval; 

       public String getTurn_on() { 
        return turn_on; 
       } 

       public void setTurn_on(String turn_on) { 
        this.turn_on = turn_on; 
       } 

       public Object getNamespace() { 
        return namespace; 
       } 

       public void setNamespace(Object namespace) { 
        this.namespace = namespace; 
       } 

       public Object getInstance() { 
        return instance; 
       } 

       public void setInstance(Object instance) { 
        this.instance = instance; 
       } 

       public Object getTx_power() { 
        return tx_power; 
       } 

       public void setTx_power(Object tx_power) { 
        this.tx_power = tx_power; 
       } 

       public Object getInterval() { 
        return interval; 
       } 

       public void setInterval(Object interval) { 
        this.interval = interval; 
       } 
      } 

      static class EeidBean { 
       private String turn_on; 
       private Object tx_power; 
       private Object interval; 

       public String getTurn_on() { 
        return turn_on; 
       } 

       public void setTurn_on(String turn_on) { 
        this.turn_on = turn_on; 
       } 

       public Object getTx_power() { 
        return tx_power; 
       } 

       public void setTx_power(Object tx_power) { 
        this.tx_power = tx_power; 
       } 

       public Object getInterval() { 
        return interval; 
       } 

       public void setInterval(Object interval) { 
        this.interval = interval; 
       } 
      } 

      static class EurlBean { 
       private String turn_on; 
       private Object tx_power; 
       private Object interval; 
       private Object url; 

       public String getTurn_on() { 
        return turn_on; 
       } 

       public void setTurn_on(String turn_on) { 
        this.turn_on = turn_on; 
       } 

       public Object getTx_power() { 
        return tx_power; 
       } 

       public void setTx_power(Object tx_power) { 
        this.tx_power = tx_power; 
       } 

       public Object getInterval() { 
        return interval; 
       } 

       public void setInterval(Object interval) { 
        this.interval = interval; 
       } 

       public Object getUrl() { 
        return url; 
       } 

       public void setUrl(Object url) { 
        this.url = url; 
       } 
      } 

      static class EtlmBean { 
       private String turn_on; 
       private Object tx_power; 
       private Object interval; 

       public String getTurn_on() { 
        return turn_on; 
       } 

       public void setTurn_on(String turn_on) { 
        this.turn_on = turn_on; 
       } 

       public Object getTx_power() { 
        return tx_power; 
       } 

       public void setTx_power(Object tx_power) { 
        this.tx_power = tx_power; 
       } 

       public Object getInterval() { 
        return interval; 
       } 

       public void setInterval(Object interval) { 
        this.interval = interval; 
       } 
      } 
     } 
    } 
}

來源

2016-10-07 07:37:03

謝謝，但你的模型看起來完全是我的:)唯一的區別是，你創建了所有在一個，而我只需要列表解析， – Bartos

JSON解析與改造 - 模型架構

回答

相關問題