C# 如何在c中从mongodb集合生成json文件?
好的,我是mongodb数据库的新手。我创建了一个小测试类,用“Country”对象填充数据库。现在,我想将数据库中的数据提取到json文件中。。我在网上和Stack上到处找,但就是找不到答案,请帮忙C# 如何在c中从mongodb集合生成json文件?,c#,json,mongodb,C#,Json,Mongodb,好的,我是mongodb数据库的新手。我创建了一个小测试类,用“Country”对象填充数据库。现在,我想将数据库中的数据提取到json文件中。。我在网上和Stack上到处找,但就是找不到答案,请帮忙 public class Country { public string Name { get; set; } public string Language { get; set; } public string Capital_City { get; set; } } c
public class Country
{
public string Name { get; set; }
public string Language { get; set; }
public string Capital_City { get; set; }
}
class Program
{
static void Main(string[] args)
{
try
{
var connectionString = "mongodb://localhost";
var client = new MongoClient(connectionString);
var server = client.GetServer();
var database = server.GetDatabase("Countries");
var collection = database.GetCollection<Country>("Countries");
BsonClassMap.RegisterClassMap<Country>(x =>
{
x.MapProperty(c => c.Name);
x.MapProperty(c => c.Language);
x.MapProperty(c => c.Capital_City);
});
hardCodedInfo(collection);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
static void hardCodedInfo(MongoCollection collection)
{
var tmp1 = new Country() { Capital_City = "Belgrade", Name = "Serbia", Language = "Serbian" };
collection.Insert(tmp1);
var tmp2 = new Country() { Capital_City = "Vienna", Name = "Austria", Language = "German" };
collection.Insert(tmp2);
var tmp3 = new Country() { Capital_City = "Beijing", Name = "China", Language = "Mandarin" };
collection.Insert(tmp3);
var tmp4 = new Country() { Capital_City = "Moscow", Name = "Russia", Language = "Russian" };
collection.Insert(tmp4);
var tmp5 = new Country() { Capital_City = "Tokio", Name = "Japan", Language = "Japanese" };
collection.Insert(tmp5);
var tmp6 = new Country() { Capital_City = "Brasilia", Name = "Brasil", Language = "Portugese" };
collection.Insert(tmp6);
var tmp7 = new Country() { Capital_City = "Paris", Name = "France", Language = "French" };
collection.Insert(tmp7);
var tmp8 = new Country() { Capital_City = "Antananarivo", Name = "Madagascar", Language = "Malagasy" };
collection.Insert(tmp8);
var tmp9 = new Country() { Capital_City = "Andorra la Vella", Name = "Andorra", Language = "Catalan" };
collection.Insert(tmp9);
var tmp10 = new Country() { Capital_City = "Ulan Bator", Name = "Mongolia", Language = "Mongolian" };
collection.Insert(tmp10);
}
}
有数千页处理将C对象序列化为JSON的问题。所以,我不知道你在找什么。可能重复的