asp.net core 3.0 MVC JSON 全局配置

asp.net core 3.0 MVC JSON 全局设置

• System.Text.Json(default)

1. startup设置代码如下：

1. <code>using System.Text.Encodings.Web;
2. using System.Text.Json;
3. using System.Text.Unicode;
5. public void ConfigureServices(IServiceCollection services)
6. {
7. services.AddJsonOptions(options =>
8. {
9. //格式化日期时间格式
10. options.JsonSerializerOptions.Converters.Add(new DatetimeJsonConverter());
11. //数据格式首字母小写
12. //options.JsonSerializerOptions.PropertyNamingPolicy =JsonNamingPolicy.CamelCase;
13. //数据格式原样输出
14. options.JsonSerializerOptions.PropertyNamingPolicy = null;
15. //取消Unicode编码
16. options.JsonSerializerOptions.Encoder = JavaScriptEncoder.Create(UnicodeRanges.All);
17. //忽略空值
18. options.JsonSerializerOptions.IgnoreNullValues = true;
19. //答应额外符号
20. options.JsonSerializerOptions.AllowTrailingCommas = true;
21. //反序列化过程中属性名称是否利用不区分巨细写的比力
22. options.JsonSerializerOptions.PropertyNameCaseInsensitive = false;
23. });
24. }</code>

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1. <code>using System;
2. using System.Text.Json;
3. using System.Text.Json.Serialization;
6. public class DatetimeJsonConverter : JsonConverter<DateTime>
7. {
8. public override DateTime Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
9. {
10. if (reader.TokenType == JsonTokenType.String)
11. {
12. if (DateTime.TryParse(reader.GetString(), out DateTime date))
13. return date;
14. }
15. return reader.GetDateTime();
16. }
18. public override void Write(Utf8JsonWriter writer, DateTime value, JsonSerializerOptions options)
19. {
20. writer.WriteStringValue(value.ToString("yyyy-MM-dd HH:mm:ss"));
21. }
22. }</code>

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1. 官方API

• Newtonsoft.Json

1. Install-Package Microsoft.AspNetCore.Mvc.NewtonsoftJson -Version 3.1.0
2. startup设置代码如下：

1. <code>using Newtonsoft.Json;
2. using Newtonsoft.Json.Serialization;
3. public void ConfigureServices(IServiceCollection services)
4. {
5. services.AddNewtonsoftJson(options =>
6. {
7. //设置时间格式
8. options.SerializerSettings.DateFormatString = "yyyy-MM-dd HH:mm:ss";
9. //忽略循环引用
10. options.SerializerSettings.ReferenceLoopHandling = ReferenceLoopHandling.Ignore;
11. //数据格式首字母小写
12. //options.SerializerSettings.ContractResolver = new CamelCasePropertyNamesContractResolver();
13. //数据格式按原样输出
14. options.SerializerSettings.ContractResolver = new DefaultContractResolver();
15. //忽略空值
16. options.SerializerSettings.NullValueHandling = NullValueHandling.Ignore;
17. });
18. }</code>

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