我正在尝试使用MongoDB嵌入我的应用程序SpringBoot中进行测试，但是运行我的应用程序时出现错误，这是我第一次，我从未使用Springboot，mongodb，junit进行过测试。
首先，我在pom.xml中添加此依赖项：
<dependency>
<groupId>de.flapdoodle.embed</groupId>
<artifactId>de.flapdoodle.embed.mongo</artifactId>
<version>1.50.2</version>
<scope>runtime</scope>
</dependency>
有了这种依赖关系，我将拥有mongoDB（但是我不知道这个版本是否正确...）
然后我创建了两个java类：
1º
@Configuration
@ComponentScan(excludeFilters = @ComponentScan.Filter(type = FilterType.ASSIGNABLE_TYPE, value = CommandLineRunner.class))
@EnableAutoConfiguration
public class TestApplicationConfiguration {
@Bean
GenerarCsv service() {
return new GenerarCsvImpl();
}
}
在这个类中，我有我的接口，我将生成我的实现，现在是我的2º类java：
import static org.junit.Assert.assertEquals;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.ActiveProfiles;
import org.springframework.test.context.TestPropertySource;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import com.batch.DesarrolloBatch.model.Documento;
import com.batch.DesarrolloBatch.persistence.DocumentoRepository;
import com.batch.DesarrolloBatch.service.interfaces.GenerarCsv;
import com.mongodb.MongoClient;
import com.mongodb.client.MongoCollection;
import com.mongodb.client.MongoDatabase;
import de.flapdoodle.embed.mongo.MongodExecutable;
import de.flapdoodle.embed.mongo.MongodProcess;
import de.flapdoodle.embed.mongo.MongodStarter;
import de.flapdoodle.embed.mongo.config.IMongodConfig;
import de.flapdoodle.embed.mongo.config.MongodConfigBuilder;
import de.flapdoodle.embed.mongo.config.Net;
import de.flapdoodle.embed.mongo.distribution.Version;
import de.flapdoodle.embed.process.runtime.Network;
@RunWith(SpringJUnit4ClassRunner.class)
@ActiveProfiles("test")
@SpringBootTest(classes=TestApplicationConfiguration.class)
public class GenerarDocumentoTest {
@Autowired
private GenerarCsv service;
@Autowired
private DocumentoRepository repository;
private static final String DATABASE_NAME = "documento";
private MongodExecutable mongodExe;
private MongodProcess mongod;
private MongoClient mongo;
@Before
public void beforeEach() throws Exception {
MongodStarter starter = MongodStarter.getDefaultInstance();
String bindIp = "localhost";
int port = 27017;
IMongodConfig mongodConfig = new MongodConfigBuilder()
.version(Version.Main.PRODUCTION)
.net(new Net(bindIp, port, Network.localhostIsIPv6()))
.build();
this.mongodExe = starter.prepare(mongodConfig);
this.mongod = mongodExe.start();
this.mongo = new MongoClient(bindIp, port);
}
@After
public void afterEach() throws Exception {
if (this.mongod != null) {
this.mongod.stop();
this.mongodExe.stop();
}
}
@Test
public void shouldCreateNewObjectInEmbeddedMongoDb() {
// given
MongoDatabase db = mongo.getDatabase(DATABASE_NAME);
db.createCollection("documento");
MongoCollection<Documento> col = db.getCollection("documento", Documento.class);
// when
Documento doc = new Documento();
doc.set_id("999999999999999999999999");
col.insertOne(doc);
// then
assertEquals(1L, col.countDocuments());
}
}
好吧，在这个类中，我在内存中创建了mongoDB并创建了锥子，然后尝试在mongDB中插入对象类型documento，最后我问在mongoDB中我是否已注册1，但是，尝试运行时出现错误此应用程序->
at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:117) ~[spring-test-5.1.6.RELEASE.jar:5.1.6.RELEASE]
... 26 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'embeddedMongoServer' defined in class path resource [org/springframework/boot/autoconfigure/mongo/embedded/EmbeddedMongoAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [de.flapdoodle.embed.mongo.MongodExecutable]: Factory method 'embeddedMongoServer' threw exception; nested exception is de.flapdoodle.embed.process.exceptions.DistributionException: java.io.IOException: Could not open inputStream for http://downloads.mongodb.org/win32/mongodb-win32-x86_64-3.5.5.zip
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:627) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:607) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1321) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1160) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
... 26 more
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [de.flapdoodle.embed.mongo.MongodExecutable]: Factory method 'embeddedMongoServer' threw exception; nested exception is de.flapdoodle.embed.process.exceptions.DistributionException: java.io.IOException: Could not open inputStream for http://downloads.mongodb.org/win32/mongodb-win32-x86_64-3.5.5.zip
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:622) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:607) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1321) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1160) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
Caused by: de.flapdoodle.embed.process.exceptions.DistributionException: java.io.IOException: Could not open inputStream for http://downloads.mongodb.org/win32/mongodb-win32-x86_64-3.5.5.zip
at de.flapdoodle.embed.process.runtime.Starter.prepare(Starter.java:68) ~[de.flapdoodle.embed.process-1.50.1.jar:?]
at org.springframework.boot.autoconfigure.mongo.embedded.EmbeddedMongoAutoConfiguration.embeddedMongoServer(EmbeddedMongoAutoConfiguration.java:116) ~[spring-boot-autoconfigure-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.boot.autoconfigure.mongo.embedded.EmbeddedMongoAutoConfiguration$$EnhancerBySpringCGLIB$$67c9dfd6.CGLIB$embeddedMongoServer$1(<generated>) ~[spring-boot-autoconfigure-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.boot.autoconfigure.mongo.embedded.EmbeddedMongoAutoConfiguration$$EnhancerBySpringCGLIB$$67c9dfd6$$FastClassBySpringCGLIB$$8d580d09.invoke(<generated>) ~[spring-boot-autoconfigure-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:244) ~[spring-core-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:363) ~[spring-context-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.boot.autoconfigure.mongo.embedded.EmbeddedMongoAutoConfiguration$$EnhancerBySpringCGLIB$$67c9dfd6.embeddedMongoServer(<generated>) ~[spring-boot-autoconfigure-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_171]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_171]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_171]
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_171]
... 26 more
Caused by: java.io.IOException: Could not open inputStream for http://downloads.mongodb.org/win32/mongodb-win32-x86_64-3.5.5.zip
at de.flapdoodle.embed.process.store.Downloader.downloadInputStream(Downloader.java:131) ~[de.flapdoodle.embed.process-1.50.1.jar:?]
at de.flapdoodle.embed.process.store.Downloader.download(Downloader.java:69) ~[de.flapdoodle.embed.process-1.50.1.jar:?]
at de.flapdoodle.embed.process.store.ArtifactStore.checkDistribution(ArtifactStore.java:66) ~[de.flapdoodle.embed.process-1.50.1.jar:?]
at de.flapdoodle.embed.process.store.ExtractedArtifactStore.checkDistribution(ExtractedArtifactStore.java:60) ~[de.flapdoodle.embed.process-1.50.1.jar:?]
at de.flapdoodle.embed.process.runtime.Starter.prepare(Starter.java:55) ~[de.flapdoodle.embed.process-1.50.1.jar:?]
Caused by: java.net.SocketTimeoutException: connect timed out
at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method) ~[?:1.8.0_171]
at java.net.DualStackPlainSocketImpl.socketConnect(Unknown Source) ~[?:1.8.0_171]
at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source) ~[?:1.8.0_171]
如果我在导航中复制了这些链接“ htpp ...... zip”，则可以下载这些.zip，那么我不知道为什么SpringBoot无法下载.zip。
最后，我想让我知道自己不知道这样做，我将其他帖子复制并粘贴到了google中。如果有人知道如何在Springboot中使用mongoDB进行Junit测试，这是我的最终目标。这是我第一次谢谢。
编辑：
我更改了依存关系：
<dependency>
<groupId>de.flapdoodle.embed</groupId>
<artifactId>de.flapdoodle.embed.mongo</artifactId>
<scope>test</scope>
</dependency>
现在，当我运行我的应用程序时，她正在下载，但始终是0％永远不会启动...
019-06-12 09:45:02.242 INFO 14372 --- [ main] c.b.D.GenerarDocumentoTest : The following profiles are active: test
2019-06-12 09:45:03.108 INFO 14372 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data repositories in DEFAULT mode.
2019-06-12 09:45:03.282 INFO 14372 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 166ms. Found 1 repository interfaces.
2019-06-12 09:45:04.005 INFO 14372 --- [ main] o.s.b.a.m.e.EmbeddedMongo : Download Version{3.5.5}:Windows:B64 : starting...
2019-06-12 09:45:06.621 INFO 14372 --- [ main] o.s.b.a.m.e.EmbeddedMongo : Download Version{3.5.5}:Windows:B64 : DownloadSize: 245893992
2019-06-12 09:45:08.809 INFO 14372 --- [ main] o.s.b.a.m.e.EmbeddedMongo : Download Version{3.5.5}:Windows:B64 : 0 %
答案 0 :(得分：3)
方法de.flapdoodle.embed.process.store.LocalArtifactStore.getArtifact（IDownloadConfig运行时，分发分发）检查用户的本地文件夹，以查看分发文件是否已在本地存在。如果此方法尚不存在，则将返回null。
然后，调用方法将尝试下载文件，超时并抛出包裹IO异常的de.flapdoodle.embed.process.distribution.Distributon.DistributionException。
这会中断Spring Boot运行时注入和所有测试，具体取决于失败。
下载文件http://downloads.mongodb.org/win32/mongodb-win32-x86_64-3.5.5.zip
在Windows上，将其复制到您的用户文件夹，如下所示： c：\ users \您的用户名\ .embeddedmongo \ win32 \ mongodb-win32-x86_64-3.5.5.zip
现在运行测试，它将嵌入式服务器可执行文件解压缩到 c：\ users \您的用户名\ .embeddedmongo \ extracted \ Windows-B64--3.5.5 \ extractmongod.exe
您的测试现在应该可以正常运行。