Question

我在从Android应用中的JSon字符串中检索数据时遇到问题。这是通过世界天气在线API获取天气的应用程序。所以，这是JSON响应：

{
    "data": {
        "current_condition": [
            {
                "cloudcover": "25",
                "humidity": "100",
                "observation_time": "10:46 PM",
                "precipMM": "0.0",
                "pressure": "1006",
                "temp_C": "-5",
                "temp_F": "23",
                "visibility": "0",
                "weatherCode": "323",
                "weatherDesc": [
                    {
                        "value": "Patchy light snow"
                    }
                ],
                "weatherIconUrl": [
                    {
                        "value": "http://www.worldweatheronline.com/images/wsymbols01_png_64/wsymbol_0027_light_snow_showers_night.png"
                    }
                ],
                "winddir16Point": "E",
                "winddirDegree": "85",
                "windspeedKmph": "0",
                "windspeedMiles": "0"
            }
        ],
        "request": [
            {
                "query": "Bruxelles, Belgium",
                "type": "City"
            }
        ],
        "weather": [
            {
                "date": "2013-01-22",
                "precipMM": "0.3",
                "tempMaxC": "1",
                "tempMaxF": "33",
                "tempMinC": "-6",
                "tempMinF": "22",
                "weatherCode": "113",
                "weatherDesc": [
                    {
                        "value": "Sunny"
                    }
                ],
                "weatherIconUrl": [
                    {
                        "value": "http://www.worldweatheronline.com/images/wsymbols01_png_64/wsymbol_0001_sunny.png"
                    }
                ],
                "winddir16Point": "E",
                "winddirDegree": "95",
                "winddirection": "E",
                "windspeedKmph": "13",
                "windspeedMiles": "8"
            },
            {
                "date": "2013-01-23",
                "precipMM": "0.3",
                "tempMaxC": "-3",
                "tempMaxF": "26",
                "tempMinC": "-8",
                "tempMinF": "19",
                "weatherCode": "116",
                "weatherDesc": [
                    {
                        "value": "Partly Cloudy"
                    }
                ],
                "weatherIconUrl": [
                    {
                        "value": "http://www.worldweatheronline.com/images/wsymbols01_png_64/wsymbol_0002_sunny_intervals.png"
                    }
                ],
                "winddir16Point": "ENE",
                "winddirDegree": "65",
                "winddirection": "ENE",
                "windspeedKmph": "15",
                "windspeedMiles": "9"
            }
        ]
    }
}

除了从“current_condition”中检索int之外，一切正常。我可以把双重视为“cloudcover”，我可以从“天气”中正确地获得“tempMaxC”（int）。

这是代码：

public WeatherResponse getWeatherResponse(){

    w_res = new WeatherResponse();
    try{

        JSONObject data = new JSONObject(json_obj.getString("data"));
        JSONArray cur_cond = data.getJSONArray("current_condition");
        JSONArray weather = data.getJSONArray("weather");

        w_res.setCloudCover(cur_cond.getJSONObject(0).getDouble("cloudcover"));
        w_res.setHumidity(cur_cond.getJSONObject(0).getDouble("humidity"));
        w_res.setObservationTime(cur_cond.getJSONObject(0).getString("observation_time"));

        w_res.setTemp_C(cur_cond.getJSONObject(0).getInt("temp_C"));

        w_res.setDate(weather.getJSONObject(0).getString("date"));
        w_res.setTempMinC(weather.getJSONObject(0).getInt("tempMinC"));
        w_res.setTempMaxC(weather.getJSONObject(0).getInt("tempMaxC"));/**/

    }
    catch(Exception e){

        e.getMessage().toString();
    }
    return w_res;

}

其中WeatherResponse是我为此目的编写的可序列化类。

有什么想法吗？

我认为我的问题有点令人困惑......

我没有遇到任何异常......这将是...我可以检索除了之外的所有内容来自“current_condition”的int .... 在这种情况下，我无法获得temp_C

这是我的WeatherResponse类

    package com.example.wdemoapp.utils;
import java.io.*;
import java.util.*;

public class WeatherResponse implements Serializable{

/**
 * date 
 */
    public String date;

/**
 * time 
 */

    private String observationTime;

/**
 *  "%"
 */

    private double humidity;
    private double cloudCover;

/**
* temperature
*/  

    private int tempMaxC;
    private int temp_C;
    private int tempMinC;

/**
* Wind speed
*/

    private int windSpeedKmph;

/**
* Weather condition code
*/

    private int weatherCode;

/**
* Weather icon url
*/

    private List<String> weatherIconUrl;

/**
* Weather description text
*/

    private List<String> weatherDesc;

/**
* Precipitation amount in millimetre
*/

    private double precipMm;

/**    
 * methods
 */

    public String getDate() {
        return date;
    }

    public void setDate(String date) {
        this.date = date;
    }

    public String getObservationTime() {
        return observationTime;
    }

    public void setObservationTime(String observationTime) {
        this.observationTime = observationTime;
    }

    public double getCloudCover() {
        return cloudCover;
    }

    public void setCloudCover(double cloudCover) {
        this.cloudCover = cloudCover;
    }

    public double getHumidity() {
        return humidity;
    }

    public void setHumidity(double humidity) {
        this.humidity = humidity;
    }

    public int getTempMaxC() {
        return tempMaxC;
    }

    public void setTempMaxC(int tempMaxC) {
        this.tempMaxC = tempMaxC;
    }

    public int getTemp_C() {
        return temp_C;
    }

    public void setTemp_C(int tempMaxC) {
        this.temp_C = temp_C;
    }

    public int getTempMinC() {
        return tempMinC;
    }

    public void setTempMinC(int tempMinC) {
        this.tempMinC = tempMinC;
    }

    public int getWindSpeedKmph() {
        return windSpeedKmph;
    }

    public void setWindSpeedKmph(int windSpeedKmph) {
        this.windSpeedKmph = windSpeedKmph;
    }

    public int getWeatherCode() {
        return weatherCode;
    }

    public void setWeatherCode(int weatherCode) {
        this.weatherCode = weatherCode;
    }

    public List<String> getWeatherIconUrl() {
        return weatherIconUrl;
    }

    public void setWeatherIconUrl(List<String> weatherIconUrl) {
        this.weatherIconUrl = weatherIconUrl;
    }

    public List<String> getWeatherDesc() {
        return weatherDesc;
    }

    public void setWeatherDesc(List<String> weatherDesc) {
        this.weatherDesc = weatherDesc;
    }

    public double getPrecipMm() {
        return precipMm;
    }

    public void setPrecipMm(double precipMm) {
        this.precipMm = precipMm;
    }

}

我尝试将“temp_C”声明为双（我可以获得“cloudcover”，所以我猜它有效）和作为字符串（因为我也能得到“Date”，“observation_time”...）最奇怪的是我也可以从“天气”中得到“tempMaxC”和“tempMinC”所以，一般来说它似乎不是真正的问题，而是从“current_condition”中检索

抱歉......这不是答案

可能会有所帮助：

我检索“0”作为“temp_C”的值，所以我检索错误的结果!!!

从JSON中检索int - 天气Android应用程序

0 个答案: