WebApi关于配置全局返回Json数据格式时间以及命名小写

1.直接在Global文件中配置：

var formatters = GlobalConfiguration.Configuration.Formatters;
var jsonFormatter = formatters.JsonFormatter;
var settings = jsonFormatter.SerializerSettings;
settings.Formatting = Newtonsoft.Json.Formatting.Indented;
settings.DateFormatString = "yyyy-MM-dd HH:mm:ss";
settings.ContractResolver = new CamelCasePropertyNamesContractResolver();

2.配置任意的返回格式json和xml

config.Formatters.JsonFormatter.MediaTypeMappings.Add(new QueryStringMapping("format", "json", "application/json"));
config.Formatters.XmlFormatter.MediaTypeMappings.Add(new QueryStringMapping("format", "xml", "application/xml"));

3.使用Cors跨域框架配置跨域

3.1在webapi控制器下的配置