使用Git合并大型JSON文件时遇到问题。 Git似乎无法正确区分大型JSON文件。 This solution在JSON对象的每个属性之间添加额外的换行符似乎可以解决合并冲突。
问题是我的JSON文件很大,并且生成时没有换行符。我也无法控制它的生成方式。这是一个示例:
"notes":[
{
"__type__": "Note",
"data": "",
"fields": [
"Define virologic suppression in HIV",
"HIV RNA level below limit of assay detection (<20copies/mL",
"",
""
],
"flags": 0,
"guid": "B4VR%D9qb2",
"note_model_uuid": "0aecb5c4-d637-11e7-8e91-408d5c5c9416",
"tags": [
"InfectiousDiseases"
]
},
{
"__type__": "Note",
"data": "",
"fields": [
"Define incomplete virological response in HIV",
"Inability to achieve virologic suppression after 24 weeks of therapy (viral load >200 on 2 consecutive samples)",
"",
""
],
"flags": 0,
"guid": "N{WL%;*sKr",
"note_model_uuid": "0aecb5c4-d637-11e7-8e91-408d5c5c9416",
"tags": [
"InfectiousDiseases"
]
}
]
我正在尝试编写脚本以使用JSON.net添加其他换行符。这是我到目前为止的内容:
static void Main(string[] args)
{
using (StreamReader file = File.OpenText(@"fracp-anki.json"))
using (var reader = new JsonTextReader(file))
{
JObject deck = (JObject)JToken.ReadFrom(reader);
var notes = (JArray)deck["notes"];
string paddedNotes = writePaddedNotes(notes);
Console.WriteLine(paddedNotes);
}
}
public static string writePaddedNotes(JArray notes)
{
StringBuilder sb = new StringBuilder();
StringWriter sw = new StringWriter(sb);
using (JsonWriter writer = new JsonTextWriter(sw))
{
foreach (var note in notes.Children<JObject>())
{
//what goes here?
}
}
return sb.ToString();
}
如何将数组中每个对象的属性写入文件,并在它们之间添加换行符?
答案 0 :(得分:2)
您可以通过以下方法解决此问题:子类JsonTextWriter
并重写WriteValueDelimiter
方法,以便它在定界符之后写一个额外的换行符,如下所示:
class DoubleSpacedValuesJsonWriter : JsonTextWriter
{
public DoubleSpacedValuesJsonWriter(TextWriter textWriter) : base(textWriter)
{
Formatting = Formatting.Indented;
}
protected override void WriteValueDelimiter()
{
base.WriteValueDelimiter();
base.WriteWhitespace(Environment.NewLine);
}
}
然后,您可以制作一个简短的助手方法来重新格式化JSON文件,如下所示:
public static void ReformatJsonFile(string filename)
{
string tempFile = filename + ".tmp";
using (StreamReader sr = new StreamReader(filename))
using (JsonReader reader = new JsonTextReader(sr))
using (StreamWriter sw = new StreamWriter(tempFile))
using (JsonWriter writer = new DoubleSpacedValuesJsonWriter(sw))
{
writer.WriteToken(reader);
}
File.Delete(filename);
File.Move(tempFile, filename);
}
这是一个有效的演示(使用控制台而不是文件):https://dotnetfiddle.net/5ZVom7
如果事实证明您还需要在开括号{}
和/或括号[]
之后需要其他换行符,则可以覆盖WriteStartObject
,WriteEndObject
,WriteStartArray
和WriteEndArray
方法。