Question

我正在尝试使用RESTEasy和Weld进行注入的REST Web服务。当包在wildfly上部署时，我没有问题，但在尝试测试服务时，我得到以下错误。

我不知道如何解决这个问题。

有人可以帮助我吗？

21:54:17,066 ERROR [io.undertow.request] (default task-19) UT005023: Exception handling request to /cdi-test/hello: org.jboss.resteasy.spi.UnhandledException: org.jboss.weld.exceptions.IllegalArgumentException: WELD-001456: Argument resolvedBean must not be null
    at org.jboss.resteasy.core.ExceptionHandler.handleApplicationException(ExceptionHandler.java:76) [resteasy-jaxrs-3.0.8.Final.jar:]
    at org.jboss.resteasy.core.ExceptionHandler.handleException(ExceptionHandler.java:212) [resteasy-jaxrs-3.0.8.Final.jar:]
    at org.jboss.resteasy.core.SynchronousDispatcher.writeException(SynchronousDispatcher.java:149) [resteasy-jaxrs-3.0.8.Final.jar:]
    at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:372) [resteasy-jaxrs-3.0.8.Final.jar:]
    at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:179) [resteasy-jaxrs-3.0.8.Final.jar:]
    at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:220) [resteasy-jaxrs-3.0.8.Final.jar:]
    at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:56) [resteasy-jaxrs-3.0.8.Final.jar:]
    at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:51) [resteasy-jaxrs-3.0.8.Final.jar:]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) [jboss-servlet-api_3.1_spec-1.0.0.Final.jar:1.0.0.Final]
    at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85) [undertow-servlet-1.0.15.Final.jar:1.0.15.Final]
    at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:61) [undertow-servlet-1.0.15.Final.jar:1.0.15.Final]
    at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36) [undertow-servlet-1.0.15.Final.jar:1.0.15.Final]
    at org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:25) [undertow-core-1.0.15.Final.jar:1.0.15.Final]
    at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:113) [undertow-servlet-1.0.15.Final.jar:1.0.15.Final]
    at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:56) [undertow-servlet-1.0.15.Final.jar:1.0.15.Final]
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:25) [undertow-core-1.0.15.Final.jar:1.0.15.Final]
    at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:45) [undertow-core-1.0.15.Final.jar:1.0.15.Final]
    at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:61) [undertow-servlet-1.0.15.Final.jar:1.0.15.Final]
    at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:58) [undertow-core-1.0.15.Final.jar:1.0.15.Final]
    at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:70) [undertow-servlet-1.0.15.Final.jar:1.0.15.Final]
    at io.undertow.security.handlers.SecurityInitialHandler.handleRequest(SecurityInitialHandler.java:76) [undertow-core-1.0.15.Final.jar:1.0.15.Final]
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:25) [undertow-core-1.0.15.Final.jar:1.0.15.Final]
    at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:25) [undertow-core-1.0.15.Final.jar:1.0.15.Final]
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:25) [undertow-core-1.0.15.Final.jar:1.0.15.Final]
    at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:240) [undertow-servlet-1.0.15.Final.jar:1.0.15.Final]
    at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:227) [undertow-servlet-1.0.15.Final.jar:1.0.15.Final]
    at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:73) [undertow-servlet-1.0.15.Final.jar:1.0.15.Final]
    at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:146) [undertow-servlet-1.0.15.Final.jar:1.0.15.Final]
    at io.undertow.server.Connectors.executeRootHandler(Connectors.java:177) [undertow-core-1.0.15.Final.jar:1.0.15.Final]
    at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:727) [undertow-core-1.0.15.Final.jar:1.0.15.Final]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [rt.jar:1.8.0_20]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [rt.jar:1.8.0_20]
    at java.lang.Thread.run(Thread.java:745) [rt.jar:1.8.0_20]
Caused by: org.jboss.weld.exceptions.IllegalArgumentException: WELD-001456: Argument resolvedBean must not be null
    at org.jboss.weld.util.Preconditions.checkArgumentNotNull(Preconditions.java:40) [weld-core-impl-2.1.2.Final.jar:2014-01-09 09:23]
    at org.jboss.weld.manager.BeanManagerImpl.getReference(BeanManagerImpl.java:766) [weld-core-impl-2.1.2.Final.jar:2014-01-09 09:23]
    at org.jboss.weld.injection.ParameterInjectionPointImpl.getValueToInject(ParameterInjectionPointImpl.java:76) [weld-core-impl-2.1.2.Final.jar:2014-01-09 09:23]
    at org.jboss.weld.injection.ConstructorInjectionPoint.getParameterValues(ConstructorInjectionPoint.java:138) [weld-core-impl-2.1.2.Final.jar:2014-01-09 09:23]
    at org.jboss.weld.injection.ConstructorInjectionPoint.newInstance(ConstructorInjectionPoint.java:68) [weld-core-impl-2.1.2.Final.jar:2014-01-09 09:23]
    at org.jboss.weld.injection.producer.AbstractInstantiator.newInstance(AbstractInstantiator.java:28) [weld-core-impl-2.1.2.Final.jar:2014-01-09 09:23]
    at org.jboss.weld.injection.producer.BasicInjectionTarget.produce(BasicInjectionTarget.java:85) [weld-core-impl-2.1.2.Final.jar:2014-01-09 09:23]
    at org.jboss.weld.injection.producer.BeanInjectionTarget.produce(BeanInjectionTarget.java:183) [weld-core-impl-2.1.2.Final.jar:2014-01-09 09:23]
    at org.hibernate.validator.internal.cdi.DestructibleBeanInstance.createAndInjectBeans(DestructibleBeanInstance.java:53) [hibernate-validator-cdi-5.1.0.Final.jar:5.1.0.Final]
    at org.hibernate.validator.internal.cdi.DestructibleBeanInstance.<init>(DestructibleBeanInstance.java:33) [hibernate-validator-cdi-5.1.0.Final.jar:5.1.0.Final]
    at org.hibernate.validator.internal.cdi.ValidatorFactoryBean.createInstance(ValidatorFactoryBean.java:206) [hibernate-validator-cdi-5.1.0.Final.jar:5.1.0.Final]
    at org.hibernate.validator.internal.cdi.ValidatorFactoryBean.createConstraintValidatorFactory(ValidatorFactoryBean.java:192) [hibernate-validator-cdi-5.1.0.Final.jar:5.1.0.Final]
    at org.hibernate.validator.internal.cdi.ValidatorFactoryBean.create(ValidatorFactoryBean.java:119) [hibernate-validator-cdi-5.1.0.Final.jar:5.1.0.Final]
    at org.hibernate.validator.internal.cdi.ValidatorFactoryBean.create(ValidatorFactoryBean.java:52) [hibernate-validator-cdi-5.1.0.Final.jar:5.1.0.Final]
    at org.jboss.weld.context.AbstractContext.get(AbstractContext.java:96) [weld-core-impl-2.1.2.Final.jar:2014-01-09 09:23]
    at org.jboss.weld.bean.proxy.ContextBeanInstance.getInstance(ContextBeanInstance.java:98) [weld-core-impl-2.1.2.Final.jar:2014-01-09 09:23]
    at org.jboss.weld.bean.proxy.ProxyMethodHandler.invoke(ProxyMethodHandler.java:99) [weld-core-impl-2.1.2.Final.jar:2014-01-09 09:23]
    at org.jboss.weld.proxies.ValidatorFactory$627848863$Proxy$_$$_WeldClientProxy.getMessageInterpolator(Unknown Source) [weld-core-impl-2.1.2.Final.jar:]
    at org.jboss.as.ee.beanvalidation.LazyValidatorFactory.getMessageInterpolator(LazyValidatorFactory.java:101)
    at org.jboss.resteasy.plugins.validation.GeneralValidatorImpl.getValidator(GeneralValidatorImpl.java:559) [resteasy-validator-provider-11-3.0.8.Final.jar:]
    at org.jboss.resteasy.plugins.validation.GeneralValidatorImpl.validate(GeneralValidatorImpl.java:69) [resteasy-validator-provider-11-3.0.8.Final.jar:]
    at org.jboss.resteasy.cdi.JaxrsInjectionTarget.validate(JaxrsInjectionTarget.java:108) [resteasy-cdi-3.0.8.Final.jar:]
    at org.jboss.resteasy.cdi.JaxrsInjectionTarget.inject(JaxrsInjectionTarget.java:69) [resteasy-cdi-3.0.8.Final.jar:]
    at org.jboss.weld.bean.ManagedBean.create(ManagedBean.java:150) [weld-core-impl-2.1.2.Final.jar:2014-01-09 09:23]
    at org.jboss.weld.context.AbstractContext.get(AbstractContext.java:96) [weld-core-impl-2.1.2.Final.jar:2014-01-09 09:23]
    at org.jboss.weld.bean.proxy.ContextBeanInstance.getInstance(ContextBeanInstance.java:98) [weld-core-impl-2.1.2.Final.jar:2014-01-09 09:23]
    at org.jboss.weld.bean.proxy.ProxyMethodHandler.invoke(ProxyMethodHandler.java:78) [weld-core-impl-2.1.2.Final.jar:2014-01-09 09:23]
    at com.test.service.HelloWorld$Proxy$_$$_WeldClientProxy.getHelloWorldJSON(Unknown Source) [classes:]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.8.0_20]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) [rt.jar:1.8.0_20]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.8.0_20]
    at java.lang.reflect.Method.invoke(Method.java:483) [rt.jar:1.8.0_20]
    at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:137) [resteasy-jaxrs-3.0.8.Final.jar:]
    at org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTarget(ResourceMethodInvoker.java:296) [resteasy-jaxrs-3.0.8.Final.jar:]
    at org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:250) [resteasy-jaxrs-3.0.8.Final.jar:]
    at org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:237) [resteasy-jaxrs-3.0.8.Final.jar:]
    at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:356) [resteasy-jaxrs-3.0.8.Final.jar:]
    ... 31 more

我的项目文件，

package com.test.service;

import javax.ws.rs.ApplicationPath;
import javax.ws.rs.core.Application;

@ApplicationPath("/")
public class RESTConfig extends Application {

}

package com.test.service;

import javax.inject.Inject;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Response;
import javax.enterprise.context.RequestScoped;

@Path("/hello")
@RequestScoped
public class HelloWorld {
    @Inject
    HelloService helloService;

    @GET
    @Produces({ "application/json" })
    public Response getHelloWorldJSON() {
        String res = helloService.createHelloMessage("World");
        return Response.ok(res).build();
    }
}

package com.test.service;

import javax.enterprise.context.RequestScoped;

@RequestScoped
public class HelloService {

    String createHelloMessage(String name) {
        return "Hello " + name + "!";
    }

}

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.test.service</groupId>
  <artifactId>cdi-test</artifactId>
  <version>0.0.1-SNAPSHOT</version>

  <dependencies>
        <dependency>
            <groupId>org.jboss.weld</groupId>
            <artifactId>weld-core</artifactId>
            <version>2.2.4.Final</version>
        </dependency>
        <dependency>
            <groupId>org.jboss.resteasy</groupId>
            <artifactId>resteasy-jaxrs</artifactId>
            <version>3.0.7.Final</version>
        </dependency>
        <dependency>
            <groupId>org.jboss.resteasy</groupId>
            <artifactId>jaxrs-api</artifactId>
            <version>3.0.7.Final</version>
        </dependency>
        <dependency>
            <groupId>org.jboss.resteasy</groupId>
            <artifactId>resteasy-jackson2-provider</artifactId>
            <version>3.0.7.Final</version>
        </dependency>
        <dependency>
            <groupId>org.jboss.resteasy</groupId>
            <artifactId>resteasy-cdi</artifactId>
            <version>3.0.7.Final</version>
        </dependency>
    </dependencies>
</project>

<beans xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/beans_1_1.xsd"
    bean-discovery-mode="all">
</beans>

Answer 1

如果您不使用特定的焊接或重新安装功能，则不应添加焊接和重新安装依赖项。如果这样做，您应该将这些依赖项放在provided范围内。否则它将打包在你的WAR中。

但是看看你的代码，你似乎没有使用特定的焊接或重复功能。在这种情况下，我建议只是为Java EE apis添加一个依赖项，而不是其他：

    <dependency>
        <groupId>javax</groupId>
        <artifactId>javaee-api</artifactId>
        <version>7.0</version>
        <scope>provided</scope>
    </dependency>

Wildfly将在运行时提供所有实现。

Answer 2

默认情况下，Java EE 7具有隐式bean归档。您的HelloWorld类没有范围注释，因此它不被CDI视为托管bean，并且注入此类不起作用。

尝试添加@ApplicationScoped。

Answer 3

我按照Benjamin所说的方式提供了包裹，然后我删除了旧的野生动物并解压缩了另一个。在新的野生蝇中，解决方案可行。

Answer 4

问题是您使用单身代表您的终端。由于您正在实例化它们，因此您将绕过注射。您可以从RESTConfig课程中删除所有方法，也可以让它在getClasses()中返回您的课程。没有必要在EE应用程序中指定它们，因为容器是要扫描的。

使用RESTEasy，Weld和Wildfly失败的@Inject对象

4 个答案: