使用 Wildfly 8 和 NetBeans 进行测试
题
我在 NetBeans 和 Maven 下进行 Wildfly 测试时遇到问题。我可以从 IDE 启动应用程序,甚至可以使用 Netbeans 调试器对其进行调试,但是一旦开始单元测试,就会收到以下错误:
No EJBContainer provider available: no provider names had been found.
javax.ejb.EJBException
at javax.ejb.embeddable.EJBContainer.reportError(EJBContainer.java:216)
at javax.ejb.embeddable.EJBContainer.createEJBContainer(EJBContainer.java:146)
at javax.ejb.embeddable.EJBContainer.createEJBContainer(EJBContainer.java:102)
at cz.interactsys.ejb.StatefulSessionBeanTest.setUp(StatefulSessionBeanTest.java:28)
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 org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:27)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
at org.apache.maven.surefire.junit4.JUnit4TestSet.execute(JUnit4TestSet.java:53)
at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:123)
at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:104)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:164)
at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:110)
at org.apache.maven.surefire.booter.SurefireStarter.invokeProvider(SurefireStarter.java:175)
at org.apache.maven.surefire.booter.SurefireStarter.runSuitesInProcessWhenForked(SurefireStarter.java:107)
at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:68)
标准代码如下:
int numberA = 1;
int numberB = 2;
EJBContainer container = javax.ejb.embeddable.EJBContainer.createEJBContainer();
MyBean instance = (MyBean) container.getContext().lookup("java:global/classes/MyBean");
int expResult = 3;
int result = instance.plusOne(1);
assertEquals(expResult, result);
container.close();
提前致谢。
解决方案
问题是Wildfly中根本没有EJBContainer。我不确定这怎么可能,因为根据平台规范 EJBContainer 应该存在。然而我们需要使用不同的东西,那就是 Arquillian。本文的灵感来自许多其他文章,主要是 这个, ,但是这里建议的解决方案是使用与常规部署相同的 Wildfly 安装进行测试,这对我来说似乎更好。
有必要仔细遵循以下提示。然后它就会起作用。
第零步-准备: 让我们准备一些可以用于测试的东西。
让我们有一个常规的 Maven JavaEE 项目,即:
demoproj
demoproj-ear
demoproj-ejb
demoproj-war
我使用的是 NetBeans,但是即使对于其他 IDE,以下步骤也不会有太大不同。当然,让我们创建一些东西,例如实体 bean、持久性单元和会话 bean,以便进行测试。我使用 NetBeans 创建了一个演示持久性单元、一个使用数据库的实体以及来自该实体的会话 bean。
步骤1: 我们将以下代码添加到 pom.xml od demoproj 中(即主项目):
<properties>
<junit-version>4.11</junit-version>
<arquillian-version>1.1.4.Final</arquillian-version>
<arquillian-wildfly-version>8.1.0.Final</arquillian-wildfly-version>
<arquillian-transaction-version>1.0.1.Final</arquillian-transaction-version>
<javaee-server-home>/Java/wildfly-8.1.0.Final</javaee-server-home>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>${javaee-api-version}</version>
</dependency>
<!-- -JUNIT-->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit-version}</version>
</dependency>
<!-- rquillian itself-->
<dependency>
<groupId>org.jboss.arquillian</groupId>
<artifactId>arquillian-bom</artifactId>
<version>${arquillian-version}</version>
<scope>import</scope>
<type>pom</type>
</dependency>
<!-- this is in an extention to arquillian it is optional-->
<dependency>
<groupId>org.jboss.arquillian.extension</groupId>
<artifactId>arquillian-transaction-bom</artifactId>
<version>${arquillian-transaction-version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<!-- this is container adapter for wildfly-->
<dependency>
<groupId>org.wildfly</groupId>
<artifactId>wildfly-arquillian-container-embedded</artifactId>
<version>${arquillian-wildfly-version}</version>
</dependency>
<!-- this is the wildfly emb.container - BUT eventually it is not a fully blown emb.container-->
<dependency>
<groupId>org.wildfly</groupId>
<artifactId>wildfly-embedded</artifactId>
<version>${arquillian-wildfly-version}</version>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<pluginManagement>
<plugins>
<!-- compiler plugin -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>${compiler-plugin-version}</version>
<configuration>
<source>${java-version}</source>
<target>${java-version}</target>
<encoding>${project.build.sourceEncoding}</encoding>
</configuration>
</plugin>
<!-- maven ear plugin -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-ear-plugin</artifactId>
<version>${ear-plugin-version}</version>
<configuration>
<generateModuleId>true</generateModuleId>
<archive>
<manifest>
<addClasspath>true</addClasspath>
<classpathPrefix>lib/</classpathPrefix>
</manifest>
</archive>
</configuration>
</plugin>
<!-- ejb plugin -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-ejb-plugin</artifactId>
<version>${ejb-plugin-version}</version>
<configuration>
<ejbVersion>${ejb-spec-version}</ejbVersion>
</configuration>
</plugin>
<!-- war plugin -skinny wars mode! -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>${war-plugin-version}</version>
<configuration>
<failOnMissingWebXml>false</failOnMissingWebXml>
<packagingExcludes>WEB-INF/lib/*.jar</packagingExcludes>
<archive>
<manifest>
<addClasspath>true</addClasspath>
<classpathPrefix>lib/</classpathPrefix>
</manifest>
</archive>
<webResources>
<resource>
<filtering>true</filtering>
<directory>src/main/webapp</directory>
<includes>
<include>**/web.xml</include>
</includes>
</resource>
</webResources>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.17</version>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>2.8</version>
</plugin>
</plugins>
</pluginManagement>
</build>
第二步: 我们将以下内容添加到 demoproj-ejb 的 pom.xml 的依赖项部分:
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<scope>test</scope>
<type>jar</type>
</dependency>
<dependency>
<groupId>org.jboss.arquillian.junit</groupId>
<artifactId>arquillian-junit-container</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.wildfly</groupId>
<artifactId>wildfly-arquillian-container-embedded</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.wildfly</groupId>
<artifactId>wildfly-embedded</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.jboss.arquillian.extension</groupId>
<artifactId>arquillian-transaction-jta</artifactId>
<scope>test</scope>
</dependency>
将其添加到 demoproj-ejb 的插件部分:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<configuration>
<argLine>-Dfile.encoding=UTF-8</argLine>
<forkCount>1C</forkCount>
<systemPropertyVariables>
<java.util.logging.manager>org.jboss.logmanager.LogManager</java.util.logging.manager>
<jboss.home>${javaee-server-home}</jboss.home>
</systemPropertyVariables>
<redirectTestOutputToFile>false</redirectTestOutputToFile>
</configuration>
</plugin>
第三步: 让我们创建测试单元。如果我们使用普通的 IDE 函数,我们会得到如下所示的结果:
package com.demopack.demoproj;
import org.junit.Before;
import org.junit.Test;
import static org.junit.Assert.*;
public class DemoBeanLocalTest {
public DemoBeanLocalTest() {
}
@Before
public void setUp() {
}
@Test
public void testBusinessMethod() {
}
}
现在我们需要添加 @RunWith(Arquillian.class)
在类的标题之前,您应该删除默认构造函数并在测试类中添加以下代码:
@EJB
DemoBeanLocal demoBean;
@Deployment
public static JavaArchive createDeployment() {
JavaArchive jar = ShrinkWrap.create(JavaArchive.class);
jar.addAsResource("test-persistence.xml", "META-INF/persistence.xml");
jar.addPackage("com.demopack.demoproj");
jar.addAsManifestResource(EmptyAsset.INSTANCE, "beans.xml");
return jar;
}
然后你可以像往常一样添加一些测试方法。整个测试类可能如下所示:
package com.demopack.demoproj;
import javax.ejb.EJB;
import junit.framework.Assert;
import org.jboss.arquillian.container.test.api.Deployment;
import org.jboss.arquillian.junit.Arquillian;
import org.jboss.shrinkwrap.api.ShrinkWrap;
import org.jboss.shrinkwrap.api.asset.EmptyAsset;
import org.jboss.shrinkwrap.api.spec.JavaArchive;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
@RunWith(Arquillian.class)
public class DemoBeanLocalTest {
@EJB
DemoBeanLocal demoBean;
@Deployment
public static JavaArchive createDeployment() {
JavaArchive jar = ShrinkWrap.create(JavaArchive.class);
jar.addAsResource("test-persistence.xml", "META-INF/persistence.xml");
jar.addPackage("com.demopack.demoproj");
jar.addAsManifestResource(EmptyAsset.INSTANCE, "beans.xml");
return jar;
}
@Before
public void setUp() {
}
@Test
public void testBusinessMethod() {
Assert.assertEquals("test test", demoBean.businessMethod("test"));
}
}
第四步: 快完成了,但还剩下一件非常重要的事情:在 demoproj-ejb 下创建 src/test/resources
文件夹并复制到那里 persistence.xml
从 src/main/resources/META-INF
并将其重命名为 test-persistence.xml
.
确保数据库正在运行、安装了有效的驱动程序、使用了正确的数据源等。就我而言,大多数麻烦都是由此类问题引起的。
就是这样! 现在你应该清理并构建 demoproj
如果一切正常,您可以像以前一样使用正常的 NetBeans 测试功能。享受!
更新 如果您更喜欢使用远程实例(在远程服务器上或在同一台计算机上运行的实例),由于某些性能增益,我建议您应该更改代码的以下部分:
在主项目的pom.xml中:
交换:
`<artifactId>wildfly-arquillian-container-embedded</artifactId>` for
`<artifactId>wildfly-arquillian-container-remote</artifactId>`.
消除:
<dependency>
<groupId>org.wildfly</groupId>
<artifactId>wildfly-embedded</artifactId>
<version>${arquillian-wildfly-version}</version>
</dependency>
然后在 demoproj-ejb 的 pom.xml 中执行相同的操作。