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all！我正在使用OData v4构建REST服务。我的表有一个GUID主键。使用GUID主键的OData V4 REST
我的GET和POST请求工作正常。但是，PUT，PATCH和DELETE请求会以404失败。
我不确定url应该是什么样子。我已经在提琴手中尝试过这些，所有404都得到了。我已经用相当多的搜索引擎来搜索这些东西，但没有运气。
http://localhost/ershubrest/AppVersions/guid'00000000-e90f-4938-b8f6-000000000000'
http://localhost/ershubrest/AppVersions/'00000000-e90f-4938-b8f6-000000000000'
http://localhost/ershubrest/AppVersions/00000000-e90f-4938-b8f6-000000000000
这里是我的控制器代码...
using ERSHubRest.Models;
using System.Data.Entity;
using System.Data.Entity.Infrastructure;
using System.Linq;
using System.Net;
using System.Threading.Tasks;
using System.Web.Http;
using System.Web.OData;
using System.Web.OData.Query;
using System.Web.OData.Routing;
namespace ERSHubRest.controllers
{
[ODataRoutePrefix("AppVersions")]
public class AppVersionsController : ODataController
{
HubModel db = new HubModel();
private bool AppVersionsExists(System.Guid key)
{
return db.AppVersions.Any(p => p.AppVersionId == key);
}
// http GET for select queries
[ODataRoute]
[EnableQuery]
public IQueryable<AppVersions> Get()
{
return db.AppVersions;
}
[ODataRoute("({key})")]
[EnableQuery]
public IHttpActionResult Get([FromODataUri] System.Guid key)
{
IQueryable<AppVersions> result = db.AppVersions.Where(p => p.BusinessId == key);
if (result == null)
{
return NotFound();
}
return Ok(result);
}
// http POST for insert
[ODataRoute()]
[HttpPost]
[EnableQuery(AllowedQueryOptions = AllowedQueryOptions.All)]
public async Task<IHttpActionResult> Post(AppVersions appVersions)
{
if (!ModelState.IsValid)
{
return BadRequest(ModelState);
}
db.AppVersions.Add(appVersions);
await db.SaveChangesAsync();
return Created(appVersions);
}
// http PUT and PATCH for updates
[ODataRoute()]
[HttpPatch]
[EnableQuery(AllowedQueryOptions = AllowedQueryOptions.All)]
public async Task<IHttpActionResult> Patch([FromODataUri] System.Guid key, Delta<AppVersions> appVersions)
{
if (!ModelState.IsValid)
{
return BadRequest(ModelState);
}
var entity = await db.AppVersions.FindAsync(key);
if (entity == null)
{
return NotFound();
}
appVersions.Patch(entity);
try
{
await db.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!AppVersionsExists(key))
{
return NotFound();
}
else
{
throw;
}
}
return Updated(entity);
}
[ODataRoute()]
[HttpPut]
[EnableQuery(AllowedQueryOptions = AllowedQueryOptions.All)]
public async Task<IHttpActionResult> Put([FromODataUri] System.Guid key, AppVersions update)
{
if (!ModelState.IsValid)
{
return BadRequest(ModelState);
}
if (! key.Equals(update.BusinessId))
{
return BadRequest();
}
if (!AppVersionsExists(key))
{
return BadRequest();
}
db.Entry(update).State = EntityState.Modified;
try
{
await db.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (! AppVersionsExists(key))
{
return NotFound();
}
else
{
throw;
}
}
return Updated(update);
}
// last is Delete
[ODataRoute()]
[HttpDelete]
[EnableQuery(AllowedQueryOptions = AllowedQueryOptions.All)]
public async Task<IHttpActionResult> Delete([FromODataUri] System.Guid key)
{
var appVersions = await db.AppVersions.FindAsync(key);
if (appVersions == null)
{
return NotFound();
}
db.AppVersions.Remove(appVersions);
await db.SaveChangesAsync();
return StatusCode(HttpStatusCode.NoContent);
}
// clean up
protected override void Dispose(bool disposing)
{
db.Dispose();
base.Dispose(disposing);
}
}
}
我试过这些没有成功。我认为我必须在我的控制器或webapi.config路由中出现错误。 http：// localhost/ershubrest/AppVersions（'00000000-E90F-4938-B8F6-000000000000'）和http：// localhost/ershubrest/AppVersions（guid'00000000-E90F-4938-B8F6-000000000000'） - 结果是404.我将尝试一下控制器和webapi.config，看看我能否找到这个bug。至少我知道我正在使用正确的语法。谢谢！ – Pete 2014-10-20 15:26:52
@Pete对不起，我犯了一个错误。如果密钥类型是GUID，则不需要单引号。我纠正了我的答案。如果你发现答案是有用的，你可以接受它或将其标记为有用:) – 2014-10-21 11:27:21
我必须补充说你的实体也应该有Guid键。换句话说，在将密钥存储为字符串时，您不能接受Guid。 – 2015-05-19 10:19:45