Question

我有这段代码：

@Path("/automation/devices")
@Singleton
public class DevicesWebService {
    private AppiumServerManager appiumServerManager;
    private AdbService adbService;
    private DevicesService deviceService;

    public DevicesWebService() {
        this(new AdbServiceLocal(), new AppiumServerManagerLocal());
    }

    @VisibleForTesting
    public DevicesWebService(AdbService adbService, AppiumServerManagerLocal AppiumServerManager) {
        this.adbService = adbService;
        this.appiumServerManager = AppiumServerManager;
    }


    @GET
    @Produces(MediaType.TEXT_PLAIN)
    public String getMessage() {
        return "welocme to devices web-service";
    }

    @POST
    @Consumes({MediaType.APPLICATION_JSON})
    @Produces({MediaType.TEXT_PLAIN})
    @Path("/acquireDevice/{device}/{port}")
    public Response acquireDevice(@PathParam("device") Device device, @PathParam("port") Integer port) throws
            Exception {
        try {
            deviceService.acquireDevice(device, port);
        } catch (RuntimeException e) {
            return Response.status(Response.Status.NOT_FOUND).build();
        }
        return Response.status(Response.Status.OK).build();

    }
//
    public static void main(String[] args) throws IOException {
        HttpServer server = HttpServerFactory.create("http://localhost:9998/");
        server.start();
        System.out.println("Server running");
        System.out.println("Visit: http://localhost:9998/automation/devices");
    }
}

我的代码在运行时因此异常而失败：

Mar 20, 2016 12:37:51 PM com.sun.jersey.api.core.ScanningResourceConfig logClasses
INFO: Root resource classes found:
  class com.m.mobileautomation.devices.webServices.DevicesWebService
  class com.m.mobileautomation.MobileAutomationWebService
Mar 20, 2016 12:37:51 PM com.sun.jersey.api.core.ScanningResourceConfig logClasses
INFO: Provider classes found:
  class org.codehaus.jackson.jaxrs.JacksonJaxbJsonProvider
  class org.codehaus.jackson.jaxrs.JacksonJsonProvider
  class org.codehaus.jackson.jaxrs.JsonMappingExceptionMapper
  class org.codehaus.jackson.jaxrs.JsonParseExceptionMapper
Mar 20, 2016 12:37:51 PM com.sun.jersey.server.impl.application.WebApplicationImpl _initiate
INFO: Initiating Jersey application, version 'Jersey: 1.19 02/11/2015 05:39 AM'
Mar 20, 2016 12:37:52 PM com.sun.jersey.spi.inject.Errors processErrorMessages
SEVERE: The following errors and warnings have been detected with resource and/or provider classes:
  SEVERE: Missing dependency for method public javax.ws.rs.core.Response com.m.mobileautomation.devices.webServices.DevicesWebService.acquireDevice(com.m.mobileautomation.devices.dataModel.Device,java.lang.Integer) throws java.lang.Exception at parameter at index 0
  SEVERE: Method, public javax.ws.rs.core.Response com.m.mobileautomation.devices.webServices.DevicesWebService.acquireDevice(com.m.mobileautomation.devices.dataModel.Device,java.lang.Integer) throws java.lang.Exception, annotated with POST of resource, class com.m.mobileautomation.devices.webServices.DevicesWebService, is not recognized as valid resource method.
Exception in thread "main" com.sun.jersey.spi.inject.Errors$ErrorMessagesException
    at com.sun.jersey.spi.inject.Errors.processErrorMessages(Errors.java:170)
    at com.sun.jersey.spi.inject.Errors.postProcess(Errors.java:136)
    at com.sun.jersey.spi.inject.Errors.processWithErrors(Errors.java:199)
    at com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:795)
    at com.sun.jersey.api.container.ContainerFactory.createContainer(ContainerFactory.java:172)
    at com.sun.jersey.api.container.ContainerFactory.createContainer(ContainerFactory.java:264)
    at com.sun.jersey.api.container.ContainerFactory.createContainer(ContainerFactory.java:246)
    at com.sun.jersey.api.container.httpserver.HttpServerFactory.create(HttpServerFactory.java:117)
    at com.sun.jersey.api.container.httpserver.HttpServerFactory.create(HttpServerFactory.java:92)
    at com.m.mobileautomation.devices.webServices.DevicesWebService.main(DevicesWebService.java:86)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:483)
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144)

如果我评论public Response acquireDevice一切正常。

我试图删除``但仍然有错误：

SEVERE: The following errors and warnings have been detected with resource and/or provider classes:
  SEVERE: Missing dependency for method public void com.m.mobileautomation.devices.webServices.DevicesWebService.acquireDevice(com.m.mobileautomation.devices.dataModel.Device,java.lang.Integer) throws java.lang.Exception at parameter at index 0
  SEVERE: Method, public void com.m.mobileautomation.devices.webServices.DevicesWebService.acquireDevice(com.m.mobileautomation.devices.dataModel.Device,java.lang.Integer) throws java.lang.Exception, annotated with POST of resource, class com.m.mobileautomation.devices.webServices.DevicesWebService, is not recognized as valid resource method.
Exception in thread "main" com.sun.jersey.spi.inject.Errors$ErrorMessagesException
    at com.sun.jersey.spi.inject.Errors.processErrorMessages(Errors.java:170)
    at com.sun.jersey.spi.inject.Errors.postProcess(Errors.java:136)
    at com.sun.jersey.spi.inject.Errors.processWithErrors(Errors.java:199)
    at com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:795)
    at com.sun.jersey.api.container.ContainerFactory.createContainer(ContainerFactory.java:172)
    at com.sun.jersey.api.container.ContainerFactory.createContainer(ContainerFactory.java:264)
    at com.sun.jersey.api.container.ContainerFactory.createContainer(ContainerFactory.java:246)
    at com.sun.jersey.api.container.httpserver.HttpServerFactory.create(HttpServerFactory.java:117)
    at com.sun.jersey.api.container.httpserver.HttpServerFactory.create(HttpServerFactory.java:92)
    at com.waze.mobileautomation.devices.webServices.DevicesWebService.main(DevicesWebService.java:87)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:483)
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144)

我该如何解决这个问题？

Answer 1

正如@peeskillet所说，@PathParam不应该用于传递对象，因为它更常用于指定一个变量，用于标识您操作的资源/对象（例如在我的情况下，我会也许使用acquireDevice/{deviceId}/{port}如果说，id之前有任何意义）。

当你进行测试或者需要查看日志中发生了什么时，就像你现在一样使用它也可以真正地混淆你的东西 - 想想一个带有json的条目如何卡在中间将查看您的应用程序访问日志。

如果您想要传递物品，您一定要使用请求的身体 - 还要注意杰克逊（我看到你标记了它，所以我假设你用的是什么泽西岛）必须知道如何反序列化该对象，否则你也会失败。

缺少方法public void的依赖项

1 个答案: