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不特别设置的话,对于DateTime类型默认格式化为带T的字符串,如"yyyy-MM-ddTHH:mm:ss"。 如果需要自定义这个格式,需要在Startup类的ConfigureServices方法中指定 //配置响应格式 services.AddJsonOptions(options => { options.JsonSerializerOptions.Converters.Add(new DateTimeConverter()); options.JsonSerializerOptions.Converters.Add(new DateTimeNullConverter()); }).SetCompatibilityVersion(CompatibilityVersion.Version_3_0); 新建格式化处理类 public class DateTimeNullConverter : JsonConverter<DateTime?> { public override DateTime? Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) => string.IsNullOrEmpty(reader.GetString()) ? default(DateTime?) : DateTime.Parse(reader.GetString()); public override void Write(Utf8JsonWriter writer, DateTime? value, JsonSerializerOptions options) => writer.WriteStringValue(value?.ToString("yyyy-MM-dd HH:mm")); } public class DateTimeConverter : JsonConverter<DateTime> { public override DateTime Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) => DateTime.Parse(reader.GetString()); public override void Write(Utf8JsonWriter writer, DateTime value, JsonSerializerOptions options) => writer.WriteStringValue(value.ToString("yyyy-MM-dd HH:mm")); }
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