質問編集履歴
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json例を載せた
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```
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```ここに言語を入力
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jsonの例です(大阪)
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{
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"pinpointLocations": [
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{
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"link": "http://weather.livedoor.com/area/forecast/2710000",
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"name": "大阪市"
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{
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"link": "http://weather.livedoor.com/area/forecast/2714000",
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"name": "堺市"
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{
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"link": "http://weather.livedoor.com/area/forecast/2720200",
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"name": "岸和田市"
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},
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{
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"link": "http://weather.livedoor.com/area/forecast/2720300",
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"name": "豊中市"
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},
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{
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"link": "http://weather.livedoor.com/area/forecast/2720400",
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"name": "池田市"
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},
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{
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"link": "http://weather.livedoor.com/area/forecast/2720500",
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"name": "吹田市"
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},
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{
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"link": "http://weather.livedoor.com/area/forecast/2720600",
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"name": "泉大津市"
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},
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{
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"link": "http://weather.livedoor.com/area/forecast/2720700",
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"name": "高槻市"
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},
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{
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"link": "http://weather.livedoor.com/area/forecast/2720800",
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"name": "貝塚市"
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},
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{
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"link": "http://weather.livedoor.com/area/forecast/2720900",
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"name": "守口市"
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},
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{
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"link": "http://weather.livedoor.com/area/forecast/2721000",
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"name": "枚方市"
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},
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{
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"link": "http://weather.livedoor.com/area/forecast/2721100",
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"name": "茨木市"
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},
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{
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"link": "http://weather.livedoor.com/area/forecast/2721200",
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"name": "八尾市"
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"link": "http://weather.livedoor.com/area/forecast/2721300",
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"name": "泉佐野市"
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},
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"link": "http://weather.livedoor.com/area/forecast/2721400",
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"name": "富田林市"
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},
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{
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"link": "http://weather.livedoor.com/area/forecast/2721500",
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"name": "寝屋川市"
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},
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{
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"link": "http://weather.livedoor.com/area/forecast/2721600",
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"name": "河内長野市"
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},
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{
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"link": "http://weather.livedoor.com/area/forecast/2721700",
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"name": "松原市"
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},
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{
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"link": "http://weather.livedoor.com/area/forecast/2721800",
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"name": "大東市"
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},
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{
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"link": "http://weather.livedoor.com/area/forecast/2721900",
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"name": "和泉市"
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},
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{
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"link": "http://weather.livedoor.com/area/forecast/2722000",
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"name": "箕面市"
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},
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{
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"link": "http://weather.livedoor.com/area/forecast/2722100",
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"name": "柏原市"
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},
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{
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"link": "http://weather.livedoor.com/area/forecast/2722200",
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"name": "羽曳野市"
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},
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{
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"link": "http://weather.livedoor.com/area/forecast/2722300",
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"name": "門真市"
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},
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{
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"link": "http://weather.livedoor.com/area/forecast/2722400",
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"name": "摂津市"
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},
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{
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"link": "http://weather.livedoor.com/area/forecast/2722500",
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"name": "高石市"
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},
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{
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"link": "http://weather.livedoor.com/area/forecast/2722600",
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"name": "藤井寺市"
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},
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{
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"link": "http://weather.livedoor.com/area/forecast/2722700",
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"name": "東大阪市"
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},
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{
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"link": "http://weather.livedoor.com/area/forecast/2722800",
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"name": "泉南市"
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},
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{
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"link": "http://weather.livedoor.com/area/forecast/2722900",
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"name": "四條畷市"
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},
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{
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"link": "http://weather.livedoor.com/area/forecast/2723000",
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"name": "交野市"
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},
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{
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"link": "http://weather.livedoor.com/area/forecast/2723100",
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"name": "大阪狭山市"
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},
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{
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"link": "http://weather.livedoor.com/area/forecast/2723200",
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"name": "阪南市"
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},
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{
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"link": "http://weather.livedoor.com/area/forecast/2730100",
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"name": "島本町"
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},
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{
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"link": "http://weather.livedoor.com/area/forecast/2732100",
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"name": "豊能町"
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},
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{
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"link": "http://weather.livedoor.com/area/forecast/2732200",
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"name": "能勢町"
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},
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{
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"link": "http://weather.livedoor.com/area/forecast/2734100",
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"name": "忠岡町"
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},
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{
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"link": "http://weather.livedoor.com/area/forecast/2736100",
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"name": "熊取町"
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},
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{
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"link": "http://weather.livedoor.com/area/forecast/2736200",
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"name": "田尻町"
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},
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384
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{
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"link": "http://weather.livedoor.com/area/forecast/2736600",
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388
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"name": "岬町"
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},
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{
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"link": "http://weather.livedoor.com/area/forecast/2738100",
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396
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"name": "太子町"
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},
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400
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401
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{
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"link": "http://weather.livedoor.com/area/forecast/2738200",
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404
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405
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"name": "河南町"
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406
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407
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},
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408
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409
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{
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"link": "http://weather.livedoor.com/area/forecast/2738300",
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412
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413
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"name": "千早赤阪村"
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414
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415
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}
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|
416
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+
|
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417
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],
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"link": "http://weather.livedoor.com/area/forecast/270000",
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420
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421
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"forecasts": [
|
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422
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{
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424
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425
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"dateLabel": "今日",
|
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426
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|
427
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"telop": "雨",
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428
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429
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"date": "2017-10-29",
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430
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+
|
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431
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"temperature": {
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432
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+
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433
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"min": null,
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434
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+
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435
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"max": {
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436
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"celsius": "18",
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438
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439
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"fahrenheit": "64.4"
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440
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|
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441
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}
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442
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443
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},
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444
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+
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445
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"image": {
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446
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447
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"width": 50,
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448
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449
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"url": "http://weather.livedoor.com/img/icon/15.gif",
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450
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+
|
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451
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"title": "雨",
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452
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+
|
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453
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"height": 31
|
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454
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|
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455
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}
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456
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|
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457
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},
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458
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+
|
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459
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{
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460
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+
|
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461
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"dateLabel": "明日",
|
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462
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+
|
|
463
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+
"telop": "曇のち晴",
|
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464
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+
|
|
465
|
+
"date": "2017-10-30",
|
|
466
|
+
|
|
467
|
+
"temperature": {
|
|
468
|
+
|
|
469
|
+
"min": {
|
|
470
|
+
|
|
471
|
+
"celsius": "12",
|
|
472
|
+
|
|
473
|
+
"fahrenheit": "53.6"
|
|
474
|
+
|
|
475
|
+
},
|
|
476
|
+
|
|
477
|
+
"max": {
|
|
478
|
+
|
|
479
|
+
"celsius": "15",
|
|
480
|
+
|
|
481
|
+
"fahrenheit": "59.0"
|
|
482
|
+
|
|
483
|
+
}
|
|
484
|
+
|
|
485
|
+
},
|
|
486
|
+
|
|
487
|
+
"image": {
|
|
488
|
+
|
|
489
|
+
"width": 50,
|
|
490
|
+
|
|
491
|
+
"url": "http://weather.livedoor.com/img/icon/12.gif",
|
|
492
|
+
|
|
493
|
+
"title": "曇のち晴",
|
|
494
|
+
|
|
495
|
+
"height": 31
|
|
496
|
+
|
|
497
|
+
}
|
|
498
|
+
|
|
499
|
+
},
|
|
500
|
+
|
|
501
|
+
{
|
|
502
|
+
|
|
503
|
+
"dateLabel": "明後日",
|
|
504
|
+
|
|
505
|
+
"telop": "晴れ",
|
|
506
|
+
|
|
507
|
+
"date": "2017-10-31",
|
|
508
|
+
|
|
509
|
+
"temperature": {
|
|
510
|
+
|
|
511
|
+
"min": null,
|
|
512
|
+
|
|
513
|
+
"max": null
|
|
514
|
+
|
|
515
|
+
},
|
|
516
|
+
|
|
517
|
+
"image": {
|
|
518
|
+
|
|
519
|
+
"width": 50,
|
|
520
|
+
|
|
521
|
+
"url": "http://weather.livedoor.com/img/icon/1.gif",
|
|
522
|
+
|
|
523
|
+
"title": "晴れ",
|
|
524
|
+
|
|
525
|
+
"height": 31
|
|
526
|
+
|
|
527
|
+
}
|
|
528
|
+
|
|
529
|
+
}
|
|
530
|
+
|
|
531
|
+
],
|
|
532
|
+
|
|
533
|
+
"location": {
|
|
534
|
+
|
|
535
|
+
"city": "大阪",
|
|
536
|
+
|
|
537
|
+
"area": "近畿",
|
|
538
|
+
|
|
539
|
+
"prefecture": "大阪府"
|
|
540
|
+
|
|
541
|
+
},
|
|
542
|
+
|
|
543
|
+
"publicTime": "2017-10-29T11:00:00+0900",
|
|
544
|
+
|
|
545
|
+
"copyright": {
|
|
546
|
+
|
|
547
|
+
"provider": [
|
|
548
|
+
|
|
549
|
+
{
|
|
550
|
+
|
|
551
|
+
"link": "http://tenki.jp/",
|
|
552
|
+
|
|
553
|
+
"name": "日本気象協会"
|
|
554
|
+
|
|
555
|
+
}
|
|
556
|
+
|
|
557
|
+
],
|
|
558
|
+
|
|
559
|
+
"link": "http://weather.livedoor.com/",
|
|
560
|
+
|
|
561
|
+
"title": "(C) LINE Corporation",
|
|
562
|
+
|
|
563
|
+
"image": {
|
|
564
|
+
|
|
565
|
+
"width": 118,
|
|
566
|
+
|
|
567
|
+
"link": "http://weather.livedoor.com/",
|
|
568
|
+
|
|
569
|
+
"url": "http://weather.livedoor.com/img/cmn/livedoor.gif",
|
|
570
|
+
|
|
571
|
+
"title": "livedoor 天気情報",
|
|
572
|
+
|
|
573
|
+
"height": 26
|
|
574
|
+
|
|
575
|
+
}
|
|
576
|
+
|
|
577
|
+
},
|
|
578
|
+
|
|
579
|
+
"title": "大阪府 大阪 の天気",
|
|
580
|
+
|
|
581
|
+
"description": {
|
|
582
|
+
|
|
583
|
+
"text": " 近畿地方は、前線や台風第22号の影響で雨が降っています。\n\n 今日の近畿地方は、前線や台風第22号の影響で、雷を伴い非常に激しい\n雨が降り、南部では大荒れの天気となるでしょう。\n\n 明日の近畿地方は、寒気や湿った空気の影響で、おおむね曇りとなり、北\n部では雨の降る所がある見込みです。",
|
|
584
|
+
|
|
585
|
+
"publicTime": "2017-10-29T10:38:00+0900"
|
|
586
|
+
|
|
587
|
+
}
|
|
588
|
+
|
|
589
|
+
}
|
|
590
|
+
|
|
591
|
+
```
|
|
592
|
+
|
|
65
593
|
エラー内容は
|
|
66
594
|
|
|
67
595
|
Exception in thread "main" java.lang.NullPointerException
|
1
ソースコード打ち間違いを修正
test
CHANGED
|
File without changes
|
test
CHANGED
|
@@ -46,14 +46,32 @@
|
|
|
46
46
|
|
|
47
47
|
JsonNode json = ob.readTree(json_st);
|
|
48
48
|
|
|
49
|
-
|
|
49
|
+
area = json.get("title").textValue();
|
|
50
50
|
|
|
51
|
-
|
|
51
|
+
Weather = json.get("forecasts").get("telop").textValue();//ここでヌルポインタが発生する...
|
|
52
52
|
|
|
53
|
+
|
|
54
|
+
|
|
53
|
-
System.out.println(
|
|
55
|
+
System.out.println(area);
|
|
56
|
+
|
|
57
|
+
|
|
58
|
+
|
|
59
|
+
}
|
|
54
60
|
|
|
55
61
|
}
|
|
56
62
|
|
|
57
63
|
```
|
|
58
64
|
|
|
65
|
+
エラー内容は
|
|
66
|
+
|
|
67
|
+
Exception in thread "main" java.lang.NullPointerException
|
|
68
|
+
|
|
69
|
+
at gotenki.tenki(gotenki.java:58)
|
|
70
|
+
|
|
71
|
+
at main.tenki(main.java:181)
|
|
72
|
+
|
|
73
|
+
at main.main(main.java:133)
|
|
74
|
+
|
|
75
|
+
mainの方は呼び出しメソッドで引数に間違いはありません
|
|
76
|
+
|
|
59
77
|
ぜひどうすればいいのかご教授ください
|