在ABP中用Controler继承自AbpController，直接使用return Json()，将返回Json结果格式化后：
{
"result": [
{
"title": "Ghostbusters",
"genre": "Comedy",
"releaseDate": "2017-01-01T00:00:00"
},
{
"title": "Gone with Wind",
"genre": "Drama",
"releaseDate": "2017-01-03T00:00:00"
},
{
"title": "Star Wars",
"genre": "Science Fiction",
"releaseDate": "2017-01-23T00:00:00"
}
],
"targetUrl": null,
"success": true,
"error": null,
"unAuthorizedRequest": false,
"__abp": true
}
其中result为代码中指定返回的数据。其他几个键值对是ABP封装的，包含了是否认证、是否成功、错误信息，以及目标Url。这几个参数是不是很sweet。
也可以通过调用return AbpJson()来指定参数进行json格式化输出。
仔细观察会发现日期格式还是怪怪的。2017-01-23T00:00:00，多了一个T。查看AbpJsonReult源码发现调用的是Newtonsoft.Json序列化组件中的JsonConvert.SerializeObject(obj, settings);进行序列化。
查看Newtonsoft.Json官网介绍，日期格式化输出，需要指定IsoDateTimeConverter的DateTimeFormat即可。
IsoDateTimeConverter timeFormat = new IsoDateTimeConverter(); timeFormat.DateTimeFormat = "yyyy-MM-dd HH:mm:ss"; JsonConvert.SerializeObject(dt, Formatting.Indented, timeFormat)
那在我们Abp中我们怎么去指定这个DateTimeFormat呢？
ABP中提供了AbpDateTimeConverter类继承自IsoDateTimeConverter。
但查看ABP中集成的Json序列化扩展类：
public static class JsonExtensions
{
/// <summary>Converts given object to JSON string.</summary>
/// <returns></returns>
public static string ToJsonString(this object obj, bool camelCase = false, bool indented = false)
{
JsonSerializerSettings settings = new JsonSerializerSettings();
if (camelCase)
settings.ContractResolver = (IContractResolver) new CamelCasePropertyNamesContractResolver();
if (indented)
settings.Formatting = Formatting.Indented;
settings.Converters.Insert(0, (JsonConverter) new AbpDateTimeConverter());
return JsonConvert.SerializeObject(obj, settings);
}
}
明显没有指定DateTimeFormat，那我们就只能自己动手了，具体代码请参考4种解决json日期格式问题的办法的第四种办法。
当有异常发生时，Abp返回的Json格式化输出以下结果：
{
"targetUrl": null,
"result": null,
"success": false,
"error": {
"message": "An internal error occured during your request!",
"details": "..."
},
"unAuthorizedRequest": false
}
当不需要abp对json进行封装包裹怎么办？
简单。只需要在方法上标记[DontWrapResult]特性即可。这个特性其实是一个快捷方式用来告诉ABP不要用AbpJsonResult包裹我，看源码就明白了：
namespace Abp.Web.Models
{
[AttributeUsage(AttributeTargets.Class | AttributeTargets.Interface | AttributeTargets.Method)]
public class DontWrapResultAttribute : WrapResultAttribute
{
/// <summary>
/// Initializes a new instance of the <see cref="DontWrapResultAttribute"/> class.
/// </summary>
public DontWrapResultAttribute()
: base(false, false)
{
}
}
/// <summary>
/// Used to determine how ABP should wrap response on the web layer.
/// </summary>
[AttributeUsage(AttributeTargets.Class | AttributeTargets.Interface | AttributeTargets.Method)]
public class WrapResultAttribute : Attribute
{
/// <summary>
/// Wrap result on success.
/// </summary>
public bool WrapOnSuccess { get; set; }
/// <summary>
/// Wrap result on error.
/// </summary>
public bool WrapOnError { get; set; }
/// <summary>
/// Log errors.
/// Default: true.
/// </summary>
public bool LogError { get; set; }
/// <summary>
/// Initializes a new instance of the <see cref="WrapResultAttribute"/> class.
/// </summary>
/// <param name="wrapOnSuccess">Wrap result on success.</param>
/// <param name="wrapOnError">Wrap result on error.</param>
public WrapResultAttribute(bool wrapOnSuccess = true, bool wrapOnError = true)
{
WrapOnSuccess = wrapOnSuccess;
WrapOnError = wrapOnError;
LogError = true;
}
}
}
