正如您在标题中看到的那样,当我尝试读取 Riot-Games API 中可用的 JSON 文件时出现错误。我尝试使用其 SummonerID 返回用户的当前等级和等级。当我尝试获取 SummonerID 时,我没有收到此错误。我猜问题是 JSON 文件以“ [ ”和“ ] ”开头和结尾。因此,我正在寻找如何提取其中某些部分的解决方案(例如:等级、排名和联赛积分)。
这就是我收到召唤者ID的方式:
public static String getSummonerID(String summoner) throws IOException, JSONException {
JSONObject json = readJsonFromUrl("https://euw1.api.riotgames.com/lol/summoner/v3/summoners/by-name/" + summoner +"?api_key="+ api_key);
return json.get("id").toString();
}
这就是我尝试接收有关当前层的信息的方式:
public static String getSummonerTierSoloQ(String summoner) throws IOException, JSONException {
JSONObject json = readJsonFromUrl("https://euw1.api.riotgames.com/lol/league/v3/positions/by-summoner/" + getSummonerID(summoner) +"?api_key="+ api_key);
return json.toString();
}
要获取的 JSON 文件如下所示:
[
{
"leagueId": "",
"leagueName": "Soraka's Mercenaries",
"tier": "SILVER",
"queueType": "RANKED_SOLO_5x5",
"rank": "III",
"playerOrTeamId": "",
"playerOrTeamName": "JieBäf",
"leaguePoints": 58,
"wins": 142,
"losses": 134,
"veteran": true,
"inactive": false,
"freshBlood": false,
"hotStreak": false
},
{
"leagueId": "",
"leagueName": "Sion's Marksmen",
"tier": "SILVER",
"queueType": "RANKED_FLEX_SR",
"rank": "IV",
"playerOrTeamId": "",
"playerOrTeamName": "JieBäf",
"leaguePoints": 23,
"wins": 96,
"losses": 98,
"veteran": true,
"inactive": false,
"freshBlood": false,
"hotStreak": false
}
]
确切的错误代码是:
org.json.JSONException: A JSONObject text must begin with '{' at 1 [character 2 line 1]
at org.json.JSONTokener.syntaxError(JSONTokener.java:433)
at org.json.JSONObject.<init>(JSONObject.java:183)
at org.json.JSONObject.<init>(JSONObject.java:309)
at dev.reader.JsonReader.readJsonFromUrl(JsonReader.java:33)
at dev.reader.JsonReader.getSummonerTierSoloQ(JsonReader.java:56)
at dev.reader.JsonReader.output(JsonReader.java:45)
at dev.main.Load.main(Load.java:15)
差点忘了 readJsonFromURL 和 readAll 方法:
public static JSONObject readJsonFromUrl(String url) throws IOException, JSONException {
InputStream is = new URL(url).openStream();
try {
BufferedReader rd = new BufferedReader(new InputStreamReader(is, Charset.forName("UTF-8")));
String jsonText = readAll(rd);
JSONObject json = new JSONObject(jsonText);
return json;
} finally {
is.close();
}
}
private static String readAll(Reader rd) throws IOException {
StringBuilder sb = new StringBuilder();
int cp;
while ((cp = rd.read()) != -1) {
sb.append((char) cp);
}
return sb.toString();
}
感谢您的所有帮助:D
杰巴夫 | 芬恩
使用的代码来自stackoverflow,而不是我,但似乎没有像预期的那样完美。