Question

我设计了一个REST客户端和服务器。服务器使用spring和CXF以及@Procoduces和@Consumes一些对象的一些服务。这是服务的原型：

@GET
@Produces("application/xml")
@Path("/Order/Id/{orderId}")
public Order getOrder(@PathParam("orderId") String officeId);

@GET
@Produces("application/xml")
@Path("/Order/All")
public OrderList getAllOrders();

@POST
@Consumes("application/xml")
@Path("/Order/")
public String sendOrder(Order order);

使用/Order/All路径获取请求，正确响应但是当我使用Jersey客户端POST到/Order/路径时不起作用。这是客户端代码：

Client client = Client.create();
WebResource webResource = client.resource("server address/Order/");
ClientResponse response = webResource.accept(MediaType.APPLICATION_XML).type(MediaType.APPLICATION_XML)
        .post(ClientResponse.class, `an order object`);

我在服务器上遇到了这个例外：

2014-01-26 12:22:33 WARN  JAXRSUtils:499 - No operation matching request path "/services/Order/Hey" is found, Relative Path: /Order/, HTTP Method: POST, ContentType: application/xml, Accept: application/xml,. Please enable FINE/TRACE log level for more details.
2014-01-26 12:22:33 WARN  WebApplicationExceptionMapper:73 - javax.ws.rs.ClientErrorException
    at org.apache.cxf.jaxrs.utils.JAXRSUtils.findTargetMethod(JAXRSUtils.java:503)
    at org.apache.cxf.jaxrs.interceptor.JAXRSInInterceptor.processRequest(JAXRSInInterceptor.java:218)
    at org.apache.cxf.jaxrs.interceptor.JAXRSInInterceptor.handleMessage(JAXRSInInterceptor.java:90)
    at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:272)
    at org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:121)
    at org.apache.cxf.transport.http.AbstractHTTPDestination.invoke(AbstractHTTPDestination.java:239)
    at org.apache.cxf.transport.servlet.ServletController.invokeDestination(ServletController.java:248)
    at org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:222)
    at org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:153)
    at org.apache.cxf.transport.servlet.CXFNonSpringServlet.invoke(CXFNonSpringServlet.java:167)
    at org.apache.cxf.transport.servlet.AbstractHTTPServlet.handleRequest(AbstractHTTPServlet.java:286)
    at org.apache.cxf.transport.servlet.AbstractHTTPServlet.doPost(AbstractHTTPServlet.java:206)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:595)
    at org.apache.cxf.transport.servlet.AbstractHTTPServlet.service(AbstractHTTPServlet.java:262)
    at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:684)
    at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:501)
    at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)
    at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:557)
    at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231)
    at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1086)
    at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:428)
    at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193)
    at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1020)
    at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
    at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:154)
    at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
    at org.eclipse.jetty.server.Server.handle(Server.java:366)
    at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:494)
    at org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:971)
    at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:1033)
    at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:644)
    at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235)
    at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82)
    at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:667)
    at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:52)
    at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)
    at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)
    at java.lang.Thread.run(Thread.java:724)

Answer 1

您没有将POST请求定位到/services/Order/，而是定位到/services/Order/Hey（它在例外情况下）。您的应用程序中不存在此资源。检查客户端是否使用了正确的URI，或者您的应用程序是否包含任何能够更改请求URI的过滤器。

Answer 2

您的REST模式不遵循最常见的约定。这会引起混乱！特别是，将订单集合建模为单个资源（例如/Orders）并将各个订单作为子资源/Orders/{id}进行建模是正常的。为此，您需要注释您的方法：

@GET
@Produces("application/xml")
@Path("/Order/{orderId}")
public Order getOrder(@PathParam("orderId") String orderId);

@GET
@Produces("application/xml")
@Path("/Order")
public OrderList getAllOrders();

@POST
@Consumes("application/xml")
@Produces("text/plain")
@Path("/Order")
public String sendOrder(Order order);

（你可能希望从那里的POST处理程序返回Response，也可能传入@Context UriInfo ui参数;这样你就可以发送一个重定向创建的订单资源。但这不是那么重要。）

完成此操作后，您对/services/Order/Hey的GET请求变得有意义，导致实施的getOrder方法被调用，orderId设置为“Hey”。

如何使用Jersey客户端将复杂对象发送到jax-rc服务器？

2 个答案: