Question

我无法使用JSON.parse（）函数解析此后续字符串。起初我试图删除最初和最后的双引号。然后我删除了转义字符。

如何解析这种类型的JSON响应？

{
  "timestamp": 1490545425158,
  "reports": {
    "statusCode": 200,
    "body": "{\"responseCode\":\"200\",\"responseMessage\":\"Success\",\"getevent\":[{\"eventID\":\"24844563\",\"channelId\":21,\"channelStbNumber\":\"861\",\"channelHD\":\"false\",\"channelTitle\":\"Gold\",\"epgEventImage\":null,\"certification\":\"U\",\"displayDateTimeUtc\":\"2017-03-25 16:00:00.0\",\"displayDateTime\":\"2017-03-26 00:00:00.0\",\"displayDuration\":\"06:00:00\",\"siTrafficKey\":\"1:2169:30291203\",\"programmeTitle\":\"Great Golden Oldies\",\"programmeId\":\"GBSSJ\",\"episodeId\":\"\",\"shortSynopsis\":\"Mixture of '50s to '70s songs.\",\"longSynopsis\":null,\"actors\":\"\",\"directors\":\"\",\"producers\":\"\",\"genre\":\"Music & Dance\",\"subGenre\":\"General\",\"live\":false,\"premier\":false,\"ottBlackout\":false,\"highlight\":null,\"contentId\":null,\"contentImage\":null,\"groupKey\":null,\"vernacularData\":[]},{\"eventID\":\"24844564\",\"channelId\":21,\"channelStbNumber\":\"861\",\"channelHD\":\"false\",\"channelTitle\":\"Gold\",\"epgEventImage\":null,\"certification\":\"U\",\"displayDateTimeUtc\":\"2017-03-25 22:00:00.0\",\"displayDateTime\":\"2017-03-26 06:00:00.0\",\"displayDuration\":\"04:00:00\",\"siTrafficKey\":\"1:2169:30291204\",\"programmeTitle\":\"Breakfast Time\",\"programmeId\":\"GBSSK\",\"episodeId\":\"\",\"shortSynopsis\":\"Wake up to Golden Oldies.\",\"longSynopsis\":null,\"actors\":\"\",\"directors\":\"\",\"producers\":\"\",\"genre\":\"Music & Dance\",\"subGenre\":\"General\",\"live\":false,\"premier\":false,\"ottBlackout\":false,\"highlight\":null,\"contentId\":null,\"contentImage\":null,\"groupKey\":null,\"vernacularData\":[]},{\"eventID\":\"24844565\",\"channelId\":21,\"channelStbNumber\":\"861\",\"channelHD\":\"false\",\"channelTitle\":\"Gold\",\"epgEventImage\":null,\"certification\":\"U\",\"displayDateTimeUtc\":\"2017-03-26 02:00:00.0\",\"displayDateTime\":\"2017-03-26 10:00:00.0\",\"displayDuration\":\"02:00:00\",\"siTrafficKey\":\"1:2169:30291205\",\"programmeTitle\":\"The Best Mix\",\"programmeId\":\"GBSSE\",\"episodeId\":\"\",\"shortSynopsis\":\"Best songs for the day.\",\"longSynopsis\":null,\"actors\":\"\",\"directors\":\"\",\"producers\":\"\",\"genre\":\"Music & Dance\",\"subGenre\":\"General\",\"live\":false,\"premier\":false,\"ottBlackout\":false,\"highlight\":null,\"contentId\":null,\"contentImage\":null,\"groupKey\":null,\"vernacularData\":[]},{\"eventID\":\"24844566\",\"channelId\":21,\"channelStbNumber\":\"861\",\"channelHD\":\"false\",\"channelTitle\":\"Gold\",\"epgEventImage\":null,\"certification\":\"U\",\"displayDateTimeUtc\":\"2017-03-26 04:00:00.0\",\"displayDateTime\":\"2017-03-26 12:00:00.0\",\"displayDuration\":\"03:00:00\",\"siTrafficKey\":\"1:2169:30291206\",\"programmeTitle\":\"Lunch Time with Oldies\",\"programmeId\":\"GBSSH\",\"episodeId\":\"\",\"shortSynopsis\":\"Mixture of '50s to '70s songs.\",\"longSynopsis\":null,\"actors\":\"\",\"directors\":\"\",\"producers\":\"\",\"genre\":\"Music & Dance\",\"subGenre\":\"General\",\"live\":false,\"premier\":false,\"ottBlackout\":false,\"highlight\":null,\"contentId\":null,\"contentImage\":null,\"groupKey\":null,\"vernacularData\":[]},{\"eventID\":\"24844567\",\"channelId\":21,\"channelStbNumber\":\"861\",\"channelHD\":\"false\",\"channelTitle\":\"Gold\",\"epgEventImage\":null,\"certification\":\"U\",\"displayDateTimeUtc\":\"2017-03-26 07:00:00.0\",\"displayDateTime\":\"2017-03-26 15:00:00.0\",\"displayDuration\":\"03:00:00\",\"siTrafficKey\":\"1:2169:30291207\",\"programmeTitle\":\"Your Favourites\",\"programmeId\":\"GBSSD\",\"episodeId\":\"\",\"shortSynopsis\":\"Giving you the songs you grew up with.\",\"longSynopsis\":null,\"actors\":\"\",\"directors\":\"\",\"producers\":\"\",\"genre\":\"Music & Dance\",\"subGenre\":\"General\",\"live\":false,\"premier\":false,\"ottBlackout\":false,\"highlight\":null,\"contentId\":null,\"contentImage\":null,\"groupKey\":null,\"vernacularData\":[]},{\"eventID\":\"24844568\",\"channelId\":21,\"channelStbNumber\":\"861\",\"channelHD\":\"false\",\"channelTitle\":\"Gold\",\"epgEventImage\":null,\"certification\":\"U\",\"displayDateTimeUtc\":\"2017-03-26 10:00:00.0\",\"displayDateTime\":\"2017-03-26 18:00:00.0\",\"displayDuration\":\"06:00:00\",\"siTrafficKey\":\"1:2169:30291208\",\"programmeTitle\":\"Starry Night\",\"programmeId\":\"GBSSF\",\"episodeId\":\"\",\"shortSynopsis\":\"More of the golden songs.\",\"longSynopsis\":null,\"actors\":\"\",\"directors\":\"\",\"producers\":\"\",\"genre\":\"Music & Dance\",\"subGenre\":\"General\",\"live\":false,\"premier\":false,\"ottBlackout\":false,\"highlight\":null,\"contentId\":null,\"contentImage\":null,\"groupKey\":null,\"vernacularData\":[]}]}"
 }
}

Answer 1

假设它确实是一个字符串（例如，来自网络请求或类似字符串），您可以使用JSON.parse。然后，由于body属性是包含JSON的字符串（例如，由于某种原因，其内容已经被双字符串化），因此您再次解析它。

示例：

var json = '{\n' +
'  "timestamp": 1490545425158,\n' +
'  "reports": {\n' +
'    "statusCode": 200,\n' +
'    "body": "{\\"responseCode\\":\\"200\\",\\"responseMessage\\":\\"Success\\",\\"getevent\\":[{\\"eventID\\":\\"24844563\\",\\"channelId\\":21,\\"channelStbNumber\\":\\"861\\",\\"channelHD\\":\\"false\\",\\"channelTitle\\":\\"Gold\\",\\"epgEventImage\\":null,\\"certification\\":\\"U\\",\\"displayDateTimeUtc\\":\\"2017-03-25 16:00:00.0\\",\\"displayDateTime\\":\\"2017-03-26 00:00:00.0\\",\\"displayDuration\\":\\"06:00:00\\",\\"siTrafficKey\\":\\"1:2169:30291203\\",\\"programmeTitle\\":\\"Great Golden Oldies\\",\\"programmeId\\":\\"GBSSJ\\",\\"episodeId\\":\\"\\",\\"shortSynopsis\\":\\"Mixture of \'50s to \'70s songs.\\",\\"longSynopsis\\":null,\\"actors\\":\\"\\",\\"directors\\":\\"\\",\\"producers\\":\\"\\",\\"genre\\":\\"Music & Dance\\",\\"subGenre\\":\\"General\\",\\"live\\":false,\\"premier\\":false,\\"ottBlackout\\":false,\\"highlight\\":null,\\"contentId\\":null,\\"contentImage\\":null,\\"groupKey\\":null,\\"vernacularData\\":[]},{\\"eventID\\":\\"24844564\\",\\"channelId\\":21,\\"channelStbNumber\\":\\"861\\",\\"channelHD\\":\\"false\\",\\"channelTitle\\":\\"Gold\\",\\"epgEventImage\\":null,\\"certification\\":\\"U\\",\\"displayDateTimeUtc\\":\\"2017-03-25 22:00:00.0\\",\\"displayDateTime\\":\\"2017-03-26 06:00:00.0\\",\\"displayDuration\\":\\"04:00:00\\",\\"siTrafficKey\\":\\"1:2169:30291204\\",\\"programmeTitle\\":\\"Breakfast Time\\",\\"programmeId\\":\\"GBSSK\\",\\"episodeId\\":\\"\\",\\"shortSynopsis\\":\\"Wake up to Golden Oldies.\\",\\"longSynopsis\\":null,\\"actors\\":\\"\\",\\"directors\\":\\"\\",\\"producers\\":\\"\\",\\"genre\\":\\"Music & Dance\\",\\"subGenre\\":\\"General\\",\\"live\\":false,\\"premier\\":false,\\"ottBlackout\\":false,\\"highlight\\":null,\\"contentId\\":null,\\"contentImage\\":null,\\"groupKey\\":null,\\"vernacularData\\":[]},{\\"eventID\\":\\"24844565\\",\\"channelId\\":21,\\"channelStbNumber\\":\\"861\\",\\"channelHD\\":\\"false\\",\\"channelTitle\\":\\"Gold\\",\\"epgEventImage\\":null,\\"certification\\":\\"U\\",\\"displayDateTimeUtc\\":\\"2017-03-26 02:00:00.0\\",\\"displayDateTime\\":\\"2017-03-26 10:00:00.0\\",\\"displayDuration\\":\\"02:00:00\\",\\"siTrafficKey\\":\\"1:2169:30291205\\",\\"programmeTitle\\":\\"The Best Mix\\",\\"programmeId\\":\\"GBSSE\\",\\"episodeId\\":\\"\\",\\"shortSynopsis\\":\\"Best songs for the day.\\",\\"longSynopsis\\":null,\\"actors\\":\\"\\",\\"directors\\":\\"\\",\\"producers\\":\\"\\",\\"genre\\":\\"Music & Dance\\",\\"subGenre\\":\\"General\\",\\"live\\":false,\\"premier\\":false,\\"ottBlackout\\":false,\\"highlight\\":null,\\"contentId\\":null,\\"contentImage\\":null,\\"groupKey\\":null,\\"vernacularData\\":[]},{\\"eventID\\":\\"24844566\\",\\"channelId\\":21,\\"channelStbNumber\\":\\"861\\",\\"channelHD\\":\\"false\\",\\"channelTitle\\":\\"Gold\\",\\"epgEventImage\\":null,\\"certification\\":\\"U\\",\\"displayDateTimeUtc\\":\\"2017-03-26 04:00:00.0\\",\\"displayDateTime\\":\\"2017-03-26 12:00:00.0\\",\\"displayDuration\\":\\"03:00:00\\",\\"siTrafficKey\\":\\"1:2169:30291206\\",\\"programmeTitle\\":\\"Lunch Time with Oldies\\",\\"programmeId\\":\\"GBSSH\\",\\"episodeId\\":\\"\\",\\"shortSynopsis\\":\\"Mixture of \'50s to \'70s songs.\\",\\"longSynopsis\\":null,\\"actors\\":\\"\\",\\"directors\\":\\"\\",\\"producers\\":\\"\\",\\"genre\\":\\"Music & Dance\\",\\"subGenre\\":\\"General\\",\\"live\\":false,\\"premier\\":false,\\"ottBlackout\\":false,\\"highlight\\":null,\\"contentId\\":null,\\"contentImage\\":null,\\"groupKey\\":null,\\"vernacularData\\":[]},{\\"eventID\\":\\"24844567\\",\\"channelId\\":21,\\"channelStbNumber\\":\\"861\\",\\"channelHD\\":\\"false\\",\\"channelTitle\\":\\"Gold\\",\\"epgEventImage\\":null,\\"certification\\":\\"U\\",\\"displayDateTimeUtc\\":\\"2017-03-26 07:00:00.0\\",\\"displayDateTime\\":\\"2017-03-26 15:00:00.0\\",\\"displayDuration\\":\\"03:00:00\\",\\"siTrafficKey\\":\\"1:2169:30291207\\",\\"programmeTitle\\":\\"Your Favourites\\",\\"programmeId\\":\\"GBSSD\\",\\"episodeId\\":\\"\\",\\"shortSynopsis\\":\\"Giving you the songs you grew up with.\\",\\"longSynopsis\\":null,\\"actors\\":\\"\\",\\"directors\\":\\"\\",\\"producers\\":\\"\\",\\"genre\\":\\"Music & Dance\\",\\"subGenre\\":\\"General\\",\\"live\\":false,\\"premier\\":false,\\"ottBlackout\\":false,\\"highlight\\":null,\\"contentId\\":null,\\"contentImage\\":null,\\"groupKey\\":null,\\"vernacularData\\":[]},{\\"eventID\\":\\"24844568\\",\\"channelId\\":21,\\"channelStbNumber\\":\\"861\\",\\"channelHD\\":\\"false\\",\\"channelTitle\\":\\"Gold\\",\\"epgEventImage\\":null,\\"certification\\":\\"U\\",\\"displayDateTimeUtc\\":\\"2017-03-26 10:00:00.0\\",\\"displayDateTime\\":\\"2017-03-26 18:00:00.0\\",\\"displayDuration\\":\\"06:00:00\\",\\"siTrafficKey\\":\\"1:2169:30291208\\",\\"programmeTitle\\":\\"Starry Night\\",\\"programmeId\\":\\"GBSSF\\",\\"episodeId\\":\\"\\",\\"shortSynopsis\\":\\"More of the golden songs.\\",\\"longSynopsis\\":null,\\"actors\\":\\"\\",\\"directors\\":\\"\\",\\"producers\\":\\"\\",\\"genre\\":\\"Music & Dance\\",\\"subGenre\\":\\"General\\",\\"live\\":false,\\"premier\\":false,\\"ottBlackout\\":false,\\"highlight\\":null,\\"contentId\\":null,\\"contentImage\\":null,\\"groupKey\\":null,\\"vernacularData\\":[]}]}"\n' +
' }\n' +
'}';
var parsed = JSON.parse(json);
parsed.reports.body = JSON.parse(parsed.reports.body); // This is the second parse
console.log(parsed);

但是：理想情况下，您需要修复不必要的双字符串body的来源。

当然，如果某些内容已经为您完成了第一次解析（例如，许多库将自动解析通过ajax检索的JSON），那么您当然不需要第一次解析：

var parsed = {
  "timestamp": 1490545425158,
  "reports": {
    "statusCode": 200,
    "body": "{\"responseCode\":\"200\",\"responseMessage\":\"Success\",\"getevent\":[{\"eventID\":\"24844563\",\"channelId\":21,\"channelStbNumber\":\"861\",\"channelHD\":\"false\",\"channelTitle\":\"Gold\",\"epgEventImage\":null,\"certification\":\"U\",\"displayDateTimeUtc\":\"2017-03-25 16:00:00.0\",\"displayDateTime\":\"2017-03-26 00:00:00.0\",\"displayDuration\":\"06:00:00\",\"siTrafficKey\":\"1:2169:30291203\",\"programmeTitle\":\"Great Golden Oldies\",\"programmeId\":\"GBSSJ\",\"episodeId\":\"\",\"shortSynopsis\":\"Mixture of '50s to '70s songs.\",\"longSynopsis\":null,\"actors\":\"\",\"directors\":\"\",\"producers\":\"\",\"genre\":\"Music & Dance\",\"subGenre\":\"General\",\"live\":false,\"premier\":false,\"ottBlackout\":false,\"highlight\":null,\"contentId\":null,\"contentImage\":null,\"groupKey\":null,\"vernacularData\":[]},{\"eventID\":\"24844564\",\"channelId\":21,\"channelStbNumber\":\"861\",\"channelHD\":\"false\",\"channelTitle\":\"Gold\",\"epgEventImage\":null,\"certification\":\"U\",\"displayDateTimeUtc\":\"2017-03-25 22:00:00.0\",\"displayDateTime\":\"2017-03-26 06:00:00.0\",\"displayDuration\":\"04:00:00\",\"siTrafficKey\":\"1:2169:30291204\",\"programmeTitle\":\"Breakfast Time\",\"programmeId\":\"GBSSK\",\"episodeId\":\"\",\"shortSynopsis\":\"Wake up to Golden Oldies.\",\"longSynopsis\":null,\"actors\":\"\",\"directors\":\"\",\"producers\":\"\",\"genre\":\"Music & Dance\",\"subGenre\":\"General\",\"live\":false,\"premier\":false,\"ottBlackout\":false,\"highlight\":null,\"contentId\":null,\"contentImage\":null,\"groupKey\":null,\"vernacularData\":[]},{\"eventID\":\"24844565\",\"channelId\":21,\"channelStbNumber\":\"861\",\"channelHD\":\"false\",\"channelTitle\":\"Gold\",\"epgEventImage\":null,\"certification\":\"U\",\"displayDateTimeUtc\":\"2017-03-26 02:00:00.0\",\"displayDateTime\":\"2017-03-26 10:00:00.0\",\"displayDuration\":\"02:00:00\",\"siTrafficKey\":\"1:2169:30291205\",\"programmeTitle\":\"The Best Mix\",\"programmeId\":\"GBSSE\",\"episodeId\":\"\",\"shortSynopsis\":\"Best songs for the day.\",\"longSynopsis\":null,\"actors\":\"\",\"directors\":\"\",\"producers\":\"\",\"genre\":\"Music & Dance\",\"subGenre\":\"General\",\"live\":false,\"premier\":false,\"ottBlackout\":false,\"highlight\":null,\"contentId\":null,\"contentImage\":null,\"groupKey\":null,\"vernacularData\":[]},{\"eventID\":\"24844566\",\"channelId\":21,\"channelStbNumber\":\"861\",\"channelHD\":\"false\",\"channelTitle\":\"Gold\",\"epgEventImage\":null,\"certification\":\"U\",\"displayDateTimeUtc\":\"2017-03-26 04:00:00.0\",\"displayDateTime\":\"2017-03-26 12:00:00.0\",\"displayDuration\":\"03:00:00\",\"siTrafficKey\":\"1:2169:30291206\",\"programmeTitle\":\"Lunch Time with Oldies\",\"programmeId\":\"GBSSH\",\"episodeId\":\"\",\"shortSynopsis\":\"Mixture of '50s to '70s songs.\",\"longSynopsis\":null,\"actors\":\"\",\"directors\":\"\",\"producers\":\"\",\"genre\":\"Music & Dance\",\"subGenre\":\"General\",\"live\":false,\"premier\":false,\"ottBlackout\":false,\"highlight\":null,\"contentId\":null,\"contentImage\":null,\"groupKey\":null,\"vernacularData\":[]},{\"eventID\":\"24844567\",\"channelId\":21,\"channelStbNumber\":\"861\",\"channelHD\":\"false\",\"channelTitle\":\"Gold\",\"epgEventImage\":null,\"certification\":\"U\",\"displayDateTimeUtc\":\"2017-03-26 07:00:00.0\",\"displayDateTime\":\"2017-03-26 15:00:00.0\",\"displayDuration\":\"03:00:00\",\"siTrafficKey\":\"1:2169:30291207\",\"programmeTitle\":\"Your Favourites\",\"programmeId\":\"GBSSD\",\"episodeId\":\"\",\"shortSynopsis\":\"Giving you the songs you grew up with.\",\"longSynopsis\":null,\"actors\":\"\",\"directors\":\"\",\"producers\":\"\",\"genre\":\"Music & Dance\",\"subGenre\":\"General\",\"live\":false,\"premier\":false,\"ottBlackout\":false,\"highlight\":null,\"contentId\":null,\"contentImage\":null,\"groupKey\":null,\"vernacularData\":[]},{\"eventID\":\"24844568\",\"channelId\":21,\"channelStbNumber\":\"861\",\"channelHD\":\"false\",\"channelTitle\":\"Gold\",\"epgEventImage\":null,\"certification\":\"U\",\"displayDateTimeUtc\":\"2017-03-26 10:00:00.0\",\"displayDateTime\":\"2017-03-26 18:00:00.0\",\"displayDuration\":\"06:00:00\",\"siTrafficKey\":\"1:2169:30291208\",\"programmeTitle\":\"Starry Night\",\"programmeId\":\"GBSSF\",\"episodeId\":\"\",\"shortSynopsis\":\"More of the golden songs.\",\"longSynopsis\":null,\"actors\":\"\",\"directors\":\"\",\"producers\":\"\",\"genre\":\"Music & Dance\",\"subGenre\":\"General\",\"live\":false,\"premier\":false,\"ottBlackout\":false,\"highlight\":null,\"contentId\":null,\"contentImage\":null,\"groupKey\":null,\"vernacularData\":[]}]}"
 }
};
parsed.reports.body = JSON.parse(parsed.reports.body); // Parse body
console.log(parsed);

Answer 2

你需要解析身体：

JSON.parse(object.reports.body)

剩下的已经解析了＃34;。

如何使用转义字符解析包含json对象的字符串？

2 个答案: