我寫了這個JSON代碼public class TestClass { public static void main(String[] args) { String inputJson= "{" +"\"contexts\" : { "+ "{ " + "\"times\" : { " + "{ " + "\"end\":17, " + "\"begin\" : 9 " + "}" + "}," + "\"contextname\":\"OFFICE_HOURS\" " + "}," + "{ " + "\"days\": { " + "\"MON\", " + "\"TUE\", " + "\"WED\" , " + "\"THU\", " + "\"FRI\" " + "} , " + "\"contextname\" : \"WORKDAYS\" " + "}"; ObjectMapper mapper= new ObjectMapper(); mapper.configure(JsonParser.Feature.ALLOW_SINGLE_QUOTES, true); try { MainParser mp= mapper.readValue(inputJson, MainParser.class); System.out.println(mp.getContextname()); }但我在控制臺框中發(fā)現(xiàn)了此錯誤org.codehaus.jackson.JsonParseException: Unexpected character ('{' (code 123)): was expecting double-quote to start field name at [Source: java.io.StringReader@7cf10a6f; line: 1, column: 19]我需要幫助
2 回答
森林海
TA貢獻2011條經(jīng)驗 獲得超2個贊
格式化后，您的JSON如下所示：
{
"contexts": {
{
"times": {
{
"end": 17,
"begin": 9
}
},
"contextname": "OFFICE_HOURS"
},
{
"days": {
"MON",
"TUE",
"WED",
"THU",
"FRI"
},
"contextname": "WORKDAYS"
}
出于多種原因，這是無效的。
您可以通過以下方式使其有效：將“上下文”的內容替換為數(shù)組，然后將日期包裝在數(shù)組中，并刪除一些多余的花括號。
{
"contexts": [
{
"times": {
"end": 17,
"begin": 9
},
"contextname": "OFFICE_HOURS"
},
{
"days": [
"MON",
"TUE",
"WED",
"THU",
"FRI"
],
"contextname": "WORKDAYS"
}
]
}
更好的方法可能是使用“ contextname”值作為鍵并簡化整個JSON。
{
"OFFICE_HOURS": {
"end": 17,
"begin": 9
},
"WORKDAYS": [
"MON",
"TUE",
"WED",
"THU",
"FRI"
]
}
慕無忌1623718
TA貢獻1744條經(jīng)驗 獲得超4個贊
以下是根據(jù)代碼的Json字符串。它不是正確的json格式。
{“ contexts”：{{“ times”：{{“ end”：17，“ begin”：9}}，“ contextname”：“ OFFICE_HOURS”}，{“ days”：{“ MON”，“ TUE”， “ WED”，“ THU”，“ FRI”}，“ contextname”：“ WORKDAYS”}
嘗試修復json字符串格式，然后再次運行代碼。
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