[英]String to JSONObject and back to String without losing UTF-8 encoding
我在String
得到以下result
{
"html_attributions" : [],
"result" : {
"opening_hours" : {
"open_now" : true,
"weekday_text" : [
"Monday: 8:00 AM – 7:00 PM",
"Tuesday: 8:00 AM – 7:00 PM",
"Wednesday: 8:00 AM – 2:30 PM",
"Thursday: 8:00 AM – 7:00 PM",
"Friday: 8:00 AM – 7:30 PM",
"Saturday: 8:00 AM – 6:00 PM",
"Sunday: Closed"
]
}
},
"status" : "OK"
}
我将其转换为JSONObject
JSONObject resultJSON = new JSONObject(result);
我想获取内部weekday_text
键的值,但最终输出似乎不是UTF-8
(而是显示\–
unicode字符):
System.out.println(resultJSON.getJSONObject("result").getJSONObject("opening_hours").getJSONArray("weekday_text").toString());
["Monday: 8:00 AM \u2013 7:00 PM","Tuesday: 8:00 AM \u2013 7:00 PM","Wednesday: 8:00 AM \u2013 2:30 PM","Thursday: 8:00 AM \u2013 7:00 PM","Friday: 8:00 AM \u2013 7:30 PM","Saturday: 8:00 AM \u2013 6:00 PM","Sunday: Closed"]
我在这里想念什么?
由于toString
的实现方式,您将看到Unicode转义序列。 可以通过这种方式来实现它,以弄清楚字符串中包含哪些字符,从而使调试代码变得更加容易,因为有时不同的代码点看起来非常相似。
实际的字符串仍未转义。 在数组中打印单个字符串将不会显示转义序列:
System.out.println(resultJSON.getJSONObject("result").getJSONObject("opening_hours").getJSONArray("weekday_text").getString(0));
您可以使用OutputStreamWriter来管理输出编码。
JSONObject resultJSON = new JSONObject(result);
ByteArrayOutputStream out = new ByteArrayOutputStream();
OutputStreamWriter writer = new OutputStreamWriter(out, "utf-8");
resultJSON.write(writer);
writer.flush();
String jSONStringUTF8 = new String(out.toByteArray(),"utf-8");
JSONObject newJSON = new JSONObject(jSONStringUTF8);
String value = newJSON.getString("content");
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