我遇到了关于Json.NET和omdbapi的问题。我正在尝试从omdbapi中检索信息,并且一些属性给我带来了麻烦,特别是“imdbVotes”,因为它的编写,例如,“321,364”所以我无法从中获得整数。
我打赌我需要一个自定义转换器,但我担心,此刻,我真的不明白如何为我的特定问题创建一个。
所有其他属性都运行良好(我目前没有使用所有这些属性)。
这是响应,比如说Snatch:http://www.omdbapi.com/?i=&t=snatch
这是我的班级:
public class MovieJSON
{
[JsonProperty(PropertyName = "Title")]
public String Title { get; set; }
[JsonProperty(PropertyName = "Year")]
public int Year { get; set; }
[JsonProperty(PropertyName = "Genre")]
public String Genre { get; set; }
[JsonProperty(PropertyName = "Director")]
public String Director { get; set; }
[JsonProperty(PropertyName = "Actors")]
public String Actors { get; set; }
[JsonProperty(PropertyName = "Plot")]
public String Plot { get; set; }
[JsonProperty(PropertyName = "Poster")]
public String Poster { get; set; }
[JsonProperty(PropertyName = "Metascore")]
public int Metascore { get; set; }
[JsonProperty(PropertyName = "imdbRating")]
public decimal ImdbRating { get; set; }
[JsonProperty(PropertyName = "imdbVotes")]
public int ImdbVotes { get; set; }
}
更新#1:
当属性值为“N / A”时,如何处理响应?对于某些电影来说会发生这种情况(即。http://www.omdbapi.com/?i=&t=four+rooms将Metascore设置为N / A)。
更新#2:
另一项相关调查。我正在使用EF6和MySQL,并通过JSON解析创建电影来填充数据库。
这是我的电影课程:
[JsonObject(MemberSerialization.OptIn)]
[Table("movies")]
public class MovieJSON
{
[Key]
public int Id { get; set; }
[JsonProperty(PropertyName = "Title")]
[Column("title")]
public String Title { get; set; }
[JsonProperty(PropertyName = "Year")]
[Column("year")]
public int Year { get; set; }
[JsonProperty(PropertyName = "Genre")]
[Column("genre")]
public String Genre { get; set; }
[JsonProperty(PropertyName = "Director")]
[Column("director")]
public String Director { get; set; }
[JsonProperty(PropertyName = "Actors")]
[Column("actors")]
public String Actors { get; set; }
[JsonProperty(PropertyName = "Plot")]
[Column("plot")]
public String Plot { get; set; }
[JsonProperty(PropertyName = "Poster")]
[Column("poster")]
public String Poster { get; set; }
[JsonProperty(PropertyName = "Metascore")]
public String Metascore { get; set; }
[Column("metascore")]
public int MetascoreInt
{
get
{
int result;
if (int.TryParse(Metascore, NumberStyles.AllowThousands, CultureInfo.InvariantCulture, out result))
return result;
return 0;
}
}
[JsonProperty(PropertyName = "imdbRating")]
public String ImdbRating { get; set; }
[Column("imdb_rating")]
public Decimal ImdbRatingDecimal
{
get
{
Decimal result;
if (Decimal.TryParse(ImdbRating, out result))
return result;
return 0;
}
}
[JsonProperty(PropertyName = "imdbVotes")]
public String ImdbVotes { get; set; }
[Column("imdb_votes")]
public long ImdbVotesLong
{
get
{
long result;
String stringToParse = ImdbVotes.Remove(ImdbVotes.IndexOf(','), 1);
if (long.TryParse(stringToParse, out result))
return result;
return 0;
}
}
[JsonProperty(PropertyName = "imdbID")]
[Column("imdb_id")]
public String ImdbID { get; set; }
[JsonProperty(PropertyName = "type")]
[Column("type")]
public String Type { get; set; }
public override string ToString()
{
String[] propertiesToIgnore = {"MetascoreInt", "ImdbRatingDecimal", "ImdbVotesLong"};
var sb = new StringBuilder();
PropertyInfo[] properties = GetType().GetProperties();
foreach (PropertyInfo propertyInfo in properties)
{
if (propertiesToIgnore.Contains(propertyInfo.Name))
continue;
sb.AppendLine(String.Format("{0} : {1} ",
propertyInfo.Name, propertyInfo.GetValue(this, null)));
}
return sb.ToString();
}
}
这是我的EF6配置上下文类(我忽略了String字段,而是使用Helper,因为数据库配置为接受Metascore的int等等):
protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
modelBuilder.Entity<MovieJSON>().Ignore(e => e.Metascore).Ignore(e => e.ImdbRating).Ignore(e => e.ImdbVotes);
base.OnModelCreating(modelBuilder);
}
其他图片信息:
插入数据库之前的对象值(正确设置所有值)
Valid XHTML http://imagizer.imageshack.us/v2/800x600q90/689/8x5m.png
数据库中的值:
Valid XHTML http://imagizer.imageshack.us/v2/800x600q90/844/nvc5.png
辅助字段(MetascoreInt,ImdbRatingDecimal,ImdbVotesLong)返回零,我无法弄清楚原因。
任何帮助都会非常感激! :)
一切顺利
答案 0 :(得分:3)
你可以有两个属性:一个是来自IMDB的字符串属性,另一个是转换字符串一的int属性。要进行转换,您可以使用漂亮的NumberStyles.AllowThousands
标志。所以你会有
[JsonProperty(PropertyName = "imdbVotes")]
public string ImdbVotes { get; set; }
public int ImdbVotesInt
{
get
{
int result;
if (int.TryParse(ImdbVotes,
NumberStyles.AllowThousands,
CultureInfo.InvariantCulture,
out result))
return result; // parse is successful, use 'result'
else
return 0; // parse is unsuccessful, return whatever default value works for you
}
}