java - 编译 GWT 应用程序时出错 (Errai)

Question

任何人都可以帮助我理解为什么我的应用程序在运行时抛出此错误

mvn gwt:compile:

[INFO] Compiling module org.jboss.errai.ui.demo.App
[INFO]    Scanning for additional dependencies: jar:file:/home/xkm/.m2/repository/org/jboss/errai/errai-ioc/2.2.0.Final/errai-ioc-2.2.0.Final.jar!/org/jboss/errai/ioc/client/Container.java
[INFO]       Computing all possible rebind results for 'org.jboss.errai.ioc.client.QualifierEqualityFactory'
[INFO]          Rebinding org.jboss.errai.ioc.client.QualifierEqualityFactory
[INFO]             Invoking generator org.jboss.errai.ioc.rebind.ioc.bootstrapper.QualifierEqualityFactoryGenerator
[INFO]                Generating Extensions Bootstrapper...
[ERROR] Apr 07, 2013 1:39:10 PM org.jboss.errai.reflections.Reflections scan
[ERROR] INFO: Reflections took 1387 ms to scan 12 urls, producing 403 keys and 1809 values [using 2 cores]
[INFO]          Rebinding org.jboss.errai.ioc.client.QualifierEqualityFactory
[INFO]             Invoking generator org.jboss.errai.ioc.rebind.ioc.bootstrapper.QualifierEqualityFactoryGenerator
[INFO]                Generating Extensions Bootstrapper...
[INFO]          Rebinding org.jboss.errai.ioc.client.QualifierEqualityFactory
[INFO]             Invoking generator org.jboss.errai.ioc.rebind.ioc.bootstrapper.QualifierEqualityFactoryGenerator
[INFO]                Generating Extensions Bootstrapper...
[INFO]          Rebinding org.jboss.errai.ioc.client.QualifierEqualityFactory
[INFO]             Invoking generator org.jboss.errai.ioc.rebind.ioc.bootstrapper.QualifierEqualityFactoryGenerator
[INFO]                Generating Extensions Bootstrapper...
[INFO]          Rebinding org.jboss.errai.ioc.client.QualifierEqualityFactory
[INFO]             Invoking generator org.jboss.errai.ioc.rebind.ioc.bootstrapper.QualifierEqualityFactoryGenerator
[INFO]                Generating Extensions Bootstrapper...
[INFO]          Rebinding org.jboss.errai.ioc.client.QualifierEqualityFactory
[INFO]             Invoking generator org.jboss.errai.ioc.rebind.ioc.bootstrapper.QualifierEqualityFactoryGenerator
[INFO]                Generating Extensions Bootstrapper...
[INFO]       Computing all possible rebind results for 'org.jboss.errai.ioc.client.Bootstrapper'
[INFO]          Rebinding org.jboss.errai.ioc.client.Bootstrapper
[INFO]             Invoking generator org.jboss.errai.ioc.rebind.ioc.bootstrapper.IOCGenerator
[INFO]                Generating Extensions Bootstrapper...
[ERROR] Apr 07, 2013 1:39:11 PM org.jboss.errai.ioc.rebind.ioc.bootstrapper.IOCBootstrapGenerator generate
[ERROR] INFO: generating IOC bootstrapping class...
[ERROR] Apr 07, 2013 1:39:11 PM org.jboss.errai.config.rebind.EnvUtil getAllReachableClasses
[ERROR] WARNING: reachability analysis disabled. errai may generate unnecessary code.
[ERROR] Apr 07, 2013 1:39:11 PM org.jboss.errai.config.rebind.EnvUtil getAllReachableClasses
[ERROR] WARNING: enable reachability analysis with -Derrai.compile.perf.perform_reachability_analysis=true
[INFO]                Checking ErraiApp.properties for configured types ...
[ERROR] Apr 07, 2013 1:39:13 PM org.jboss.errai.ioc.rebind.ioc.bootstrapper.IOCBootstrapGenerator generate
[ERROR] INFO: generated IOC bootstrapping class in 1827ms (4034 beans processed)
[ERROR] Apr 07, 2013 1:39:13 PM org.jboss.errai.ioc.rebind.ioc.bootstrapper.IOCBootstrapGenerator generate
[ERROR] INFO: using IOC bootstrapping code at: /home/xkm/juno/workspace/myapp/.errai/BootstrapperImpl.java
[INFO]          Rebinding org.jboss.errai.ioc.client.Bootstrapper
[INFO]             Invoking generator org.jboss.errai.ioc.rebind.ioc.bootstrapper.IOCGenerator
[INFO]                Generating Extensions Bootstrapper...
[INFO]          Rebinding org.jboss.errai.ioc.client.Bootstrapper
[INFO]             Invoking generator org.jboss.errai.ioc.rebind.ioc.bootstrapper.IOCGenerator
[INFO]                Generating Extensions Bootstrapper...
[INFO]          Rebinding org.jboss.errai.ioc.client.Bootstrapper
[INFO]             Invoking generator org.jboss.errai.ioc.rebind.ioc.bootstrapper.IOCGenerator
[INFO]                Generating Extensions Bootstrapper...
[INFO]          Rebinding org.jboss.errai.ioc.client.Bootstrapper
[INFO]             Invoking generator org.jboss.errai.ioc.rebind.ioc.bootstrapper.IOCGenerator
[INFO]                Generating Extensions Bootstrapper...
[INFO]          Rebinding org.jboss.errai.ioc.client.Bootstrapper
[INFO]             Invoking generator org.jboss.errai.ioc.rebind.ioc.bootstrapper.IOCGenerator
[INFO]                Generating Extensions Bootstrapper...
[INFO]    Scanning for additional dependencies: jar:file:/home/xkm/.m2/repository/org/jboss/errai/errai-marshalling/2.2.0.Final/errai-marshalling-2.2.0.Final.jar!/org/jboss/errai/marshalling/client/api/MarshallerFramework.java
[INFO]       Computing all possible rebind results for 'org.jboss.errai.marshalling.client.api.MarshallerFactory'
[INFO]          Rebinding org.jboss.errai.marshalling.client.api.MarshallerFactory
[INFO]             Invoking generator org.jboss.errai.marshalling.rebind.MarshallersGenerator
[INFO]                Generating Marshallers Bootstrapper...
[ERROR] Apr 07, 2013 1:39:13 PM org.jboss.errai.marshalling.rebind.MarshallerGeneratorFactory generate
[ERROR] INFO: generating marshalling class...
[ERROR] Apr 07, 2013 1:39:14 PM org.jboss.errai.marshalling.rebind.MarshallerGeneratorFactory generate
[ERROR] INFO: generated marshalling class in 583ms.
[ERROR] Apr 07, 2013 1:39:14 PM org.jboss.errai.marshalling.rebind.MarshallersGenerator _generate
[ERROR] INFO: considering '/home/xkm/juno/workspace/myapp/src/main/webapp/WEB-INF/classes/' as module output path ...
[ERROR] Apr 07, 2013 1:39:14 PM org.jboss.errai.marshalling.rebind.MarshallersGenerator _generate
[ERROR] INFO:    found '/home/xkm/juno/workspace/myapp/src/main/webapp/WEB-INF/classes' output directory
[ERROR] Apr 07, 2013 1:39:15 PM org.jboss.errai.marshalling.rebind.MarshallersGenerator _generate
[ERROR] INFO: ** deposited marshaller class in : /home/xkm/juno/workspace/myapp/src/main/webapp/WEB-INF/classes
[ERROR] Apr 07, 2013 1:39:15 PM org.jboss.errai.config.rebind.EnvUtil getAllReachableClasses
[ERROR] WARNING: reachability analysis disabled. errai may generate unnecessary code.
[ERROR] Apr 07, 2013 1:39:15 PM org.jboss.errai.config.rebind.EnvUtil getAllReachableClasses
[ERROR] WARNING: enable reachability analysis with -Derrai.compile.perf.perform_reachability_analysis=true
[ERROR] Apr 07, 2013 1:39:15 PM org.jboss.errai.marshalling.rebind.MarshallerGeneratorFactory generate
[ERROR] INFO: generating marshalling class...
[ERROR] Apr 07, 2013 1:39:15 PM org.jboss.errai.marshalling.rebind.MarshallerGeneratorFactory generate
[ERROR] INFO: generated marshalling class in 509ms.
[INFO]          Rebinding org.jboss.errai.marshalling.client.api.MarshallerFactory
[INFO]             Invoking generator org.jboss.errai.marshalling.rebind.MarshallersGenerator
[INFO]                Generating Marshallers Bootstrapper...
[INFO]          Rebinding org.jboss.errai.marshalling.client.api.MarshallerFactory
[INFO]             Invoking generator org.jboss.errai.marshalling.rebind.MarshallersGenerator
[INFO]                Generating Marshallers Bootstrapper...
[INFO]          Rebinding org.jboss.errai.marshalling.client.api.MarshallerFactory
[INFO]             Invoking generator org.jboss.errai.marshalling.rebind.MarshallersGenerator
[INFO]                Generating Marshallers Bootstrapper...
[INFO]          Rebinding org.jboss.errai.marshalling.client.api.MarshallerFactory
[INFO]             Invoking generator org.jboss.errai.marshalling.rebind.MarshallersGenerator
[INFO]                Generating Marshallers Bootstrapper...
[INFO]          Rebinding org.jboss.errai.marshalling.client.api.MarshallerFactory
[INFO]             Invoking generator org.jboss.errai.marshalling.rebind.MarshallersGenerator
[INFO]                Generating Marshallers Bootstrapper...
[ERROR] Apr 07, 2013 1:39:17 PM org.jboss.errai.bus.rebind.RpcProxyLoaderGenerator generate
[ERROR] INFO: generating rpc proxy loader class.
[INFO]    Scanning for additional dependencies: /home/xkm/juno/workspace/myapp/target/.generated/org/jboss/errai/ioc/client/BootstrapperImpl.java
[INFO]       Computing all possible rebind results for 'org.jboss.errai.ioc.client.BootstrapperImpl.org_jboss_errai_ui_demo_client_local_PasswordRequiredPageTemplateResource'
[INFO]          Rebinding org.jboss.errai.ioc.client.BootstrapperImpl.org_jboss_errai_ui_demo_client_local_PasswordRequiredPageTemplateResource
[INFO]             Invoking generator com.google.gwt.resources.rebind.context.InlineClientBundleGenerator
[INFO]                Creating assignment for getContents()
[INFO]                   Finding resources
[INFO]                      [ERROR] Resource org/jboss/errai/ui/demo/client/local/PasswordRequiredPage.html not found. Is the name specified as Class.getResource() would expect?
[INFO]       [WARN] For the following type(s), generated source was never committed (did you forget to call commit()?)
[INFO]          [WARN] org.jboss.errai.ioc.client.BootstrapperImpl_org_jboss_errai_ui_demo_client_local_PasswordRequiredPageTemplateResource_default_InlineClientBundleGenerator
[INFO]    [ERROR] Errors in '/home/xkm/juno/workspace/myapp/target/.generated/org/jboss/errai/ioc/client/BootstrapperImpl.java'
[INFO]       [ERROR] Line 149:  Failed to resolve 'org.jboss.errai.ioc.client.BootstrapperImpl.org_jboss_errai_ui_demo_client_local_PasswordRequiredPageTemplateResource' via deferred binding
[ERROR] Apr 07, 2013 1:39:21 PM org.jboss.errai.databinding.rebind.BindableProxyLoaderGenerator generate
[ERROR] INFO: generating bindable proxy loader class.
[ERROR] Apr 07, 2013 1:39:21 PM org.jboss.errai.enterprise.rebind.JaxrsProxyLoaderGenerator generate
[ERROR] INFO: generating jax-rs proxy loader class.
[INFO]    [ERROR] Cannot proceed due to previous errors

深入查看代码我可以看到:

[ERROR] Resource org/jboss/errai/ui/demo/client/local/PasswordRequiredPage.html not found. Is the name specified as Class.getResource() would expect?

但是 html 页面带有相应的PasswordRequiredPage.java:

PasswordRequiredPage.java:

@Dependent
@Templated("#passwordrequired")
@Page
public class PasswordRequiredPage extends Composite {
}

PasswordRequiredPage.html:

<div data-field="passwordrequired">
 <!-- Content -->
</div>

我的应用程序可能出了什么问题？我已经完成了:

 - mvn clean (SUCCESS)
 - mvn gwt:compile (FAIL)
 - mvn gwt:run (FAILE)

Answer 1

虽然 PasswordRequiredPage.html 与 PasswordRequiredPage.java 位于同一文件夹中，但当 gwt 编译器运行时，它应该位于类路径中。

您可以通过两种方式修复它:

1. 将PasswordRequiredPage.html复制到java编译器生成PasswordRequiredPage.class的文件夹中，maven-resources-plugin配置完成(目标复制资源)

2. 将 .html 所在的源文件夹添加到您的编译类路径中。

我从未使用过 Errai，也不知道它如何使用 gwt 编译器，但由于某种原因，它会将 .java 文件添加到类路径中(可能还有 .css 和 .png)，但没有 .html 文件。