RoboSpice + Jackson2在序列化POJO时忽略了JsonProperty

Question

我正在开发一个Android应用，我使用RoboSpice + Google HTTP Client + Jackson2来处理对JSON REST API的调用。

我无法使用@JsonProperty - 在序列化对象期间始终默默忽略它，而是使用Java变量名。

我经历了很多StackOverflow的答案，遗憾的是没有任何成功。

我的POJO定义如下所示：

package org.something;


import android.content.Context;

import com.google.api.client.util.Key;

import com.fasterxml.jackson.annotation.JsonProperty;
import org.something.client.utils.SystemInfo;

public class ClientNode {
    @Key
    private String id;

    @Key
    @JsonProperty(value="os_type")
    private String osType;

    @Key
    @JsonProperty(value="os_version")
    private String osVersion;

    @Key
    @JsonProperty(value="os_architecture")
    private String osArchitecture;

    @Key
    @JsonProperty(value="app_version")
    private String appVersion;

    @Key
    @JsonProperty(value="memory_usage")
    private int memoryUsage;

    @Key
    @JsonProperty(value="current_network_interface_type")
    private String currentNetworkInterfaceType;

    @Key
    @JsonProperty(value="current_network_mobile_type")
    private String currentNetworkMobileType;

    @Key
    @JsonProperty(value="device_model")
    private String deviceModel;

    @Key
    @JsonProperty(value="device_manufacturer")
    private String deviceManufacturer;

    @Key
    @JsonProperty(value="current_network_mobile_carrier")
    private String currentNetworkMobileCarrier;

    @Key
    @JsonProperty(value="power_battery_charging_state")
    private String powerBatteryChargingState;

    @Key
    @JsonProperty(value="power_battery_charging_type")
    private String powerBatteryChargingType;

    @Key
    @JsonProperty(value="power_battery_level")
    private int powerBatteryLevel;

    @Key
    @JsonProperty(value="power_battery_health")
    private String powerBatteryHealth;


    public ClientNode() {
        // Required by Jackson2
    }


    public ClientNode(Context context) {
        SystemInfo systemInfo = new SystemInfo(context);

        this.osType = systemInfo.getOsType();
        this.osVersion = systemInfo.getOsVersion();
        this.osArchitecture = systemInfo.getOsArchitecture();
        this.appVersion = systemInfo.getAppVersion();
        // TODO add cpu load
        this.memoryUsage = systemInfo.getMemoryUsage();
        this.currentNetworkInterfaceType = systemInfo.getCurrentNetworkInterfaceType();
        if(this.currentNetworkInterfaceType.equals("mobile")) {
            this.currentNetworkMobileType = systemInfo.getCurrentNetworkMobileType();
            this.currentNetworkMobileCarrier = systemInfo.getCurrentNetworkMobileCarrier();
        }
        // TODO add network strength
        this.deviceModel = systemInfo.getDeviceModel();
        this.deviceManufacturer = systemInfo.getDeviceManufacturer();
        this.powerBatteryChargingState = systemInfo.getPowerBatteryChargingState();
        this.powerBatteryChargingType = systemInfo.getPowerBatteryChargingType();
        this.powerBatteryLevel = systemInfo.getPowerBatteryLevel();
        this.powerBatteryHealth = systemInfo.getPowerBatteryHealth();
    }

    public String getId() {
        return id;
    }
}

我还尝试使用@JsonProperty("something")的语法 - 仍然不起作用。

这是负责提出实际请求的代码：

package org.something;

import android.content.Context;
import android.util.Log;

import com.google.api.client.http.GenericUrl;
import com.google.api.client.http.HttpRequest;
import com.google.api.client.http.json.JsonHttpContent;
import com.google.api.client.json.jackson2.JacksonFactory;
import com.octo.android.robospice.request.googlehttpclient.GoogleHttpClientSpiceRequest;

import org.something.api.ApiHelpers;
import org.something.api.ApiUriBuilder;
import org.radiokit.joint.client.api.models.plumber.resource.architecture.ClientNode;
import org.something.api.responses.SystemInfoUpdateResponse;

public class SystemInfoUpdateRequest extends GoogleHttpClientSpiceRequest<SystemInfoUpdateResponse> {
    private final static String LOG_TAG = "SystemInfoUpdateReq";

    private final String clientNodeId;
    private final Context context;

    public SystemInfoUpdateRequest(Context context, String clientNodeId) {
        super(SystemInfoUpdateResponse.class);
        this.context = context;
        this.clientNodeId = clientNodeId;
    }


    @Override
    public SystemInfoUpdateResponse loadDataFromNetwork() throws Exception {
        Log.d(LOG_TAG, "loadDataFromNetwork: start");

        JsonHttpContent content = new JsonHttpContent(new JacksonFactory(), new ClientNode(context));

        HttpRequest request = getHttpRequestFactory().buildPutRequest(new GenericUrl(new ApiUriBuilder("xxx", "ClientNode", this.clientNodeId).build()), content);

        request.setParser(new JacksonFactory().createJsonObjectParser());
        request = ApiHelpers.addApiHeaders(request);

        return request.execute().parseAs(getResultType());
    }
}

我做错了什么？