Nic*_*oad 12 c# asp.net asp.net-web-api2
我在Web API中编写RESTful API,我不确定如何有效地处理错误.我希望API返回JSON,它需要每次都包含完全相同的格式 - 即使出现错误.以下是一些成功和失败的响应可能是什么样子的例子.
成功:
{
Status: 0,
Message: "Success",
Data: {...}
}
Run Code Online (Sandbox Code Playgroud)
错误:
{
Status: 1,
Message: "An error occurred!",
Data: null
}
Run Code Online (Sandbox Code Playgroud)
如果有异常 - 任何异常,我想返回一个像第二个那样形成的响应.什么是万无一失的方法,以便没有任何例外处理未处理?
Ofe*_*lig 12
实施IExceptionHandler
.
就像是:
public class APIErrorHandler : IExceptionHandler
{
public Task HandleAsync(ExceptionHandlerContext context, CancellationToken cancellationToken)
{
var customObject = new CustomObject
{
Message = new { Message = context.Exception.Message },
Status = ... // whatever,
Data = ... // whatever
};
//Necessary to return Json
var jsonType = GlobalConfiguration.Configuration.Formatters.JsonFormatter;
json.SerializerSettings.Formatting = Newtonsoft.Json.Formatting.Indented;
var response = context.Request.CreateResponse(HttpStatusCode.InternalServerError, customObject, jsonType);
context.Result = new ResponseMessageResult(response);
return Task.FromResult(0);
}
}
Run Code Online (Sandbox Code Playgroud)
并在WebAPI(public static void Register(HttpConfiguration config)
)的配置部分写:
config.Services.Replace(typeof(IExceptionHandler), new APIErrorHandler());
Run Code Online (Sandbox Code Playgroud)