找不到类[de.flapdoodle.embed.process.config.IRuntimeConfig]

Question

升级到3.0.0版本的嵌入式MongoDB后，我得到以下异常。

我在build.gradle中使用以下内容。

testImplementation group: 'de.flapdoodle.embed', name: 'de.flapdoodle.embed.mongo', version: '3.0.0'

下面给出例外。

Caused by: java.lang.ClassNotFoundException: de.flapdoodle.embed.process.config.IRuntimeConfig
at java.net.URLClassLoader.findClass(URLClassLoader.java:382) ~[na:1.8.0_261]
at java.lang.ClassLoader.loadClass(ClassLoader.java:418) ~[na:1.8.0_261]
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:355) ~[na:1.8.0_261]
at java.lang.ClassLoader.loadClass(ClassLoader.java:351) ~[na:1.8.0_261]
at java.lang.Class.forName0(Native Method) ~[na:1.8.0_261]
at java.lang.Class.forName(Class.java:348) ~[na:1.8.0_261]
at org.springframework.util.ClassUtils.forName(ClassUtils.java:284) ~[spring-core-5.2.10.RELEASE.jar:5.2.10.RELEASE]
at org.springframework.util.ClassUtils.resolveClassName(ClassUtils.java:324) ~[spring-core-5.2.10.RELEASE.jar:5.2.10.RELEASE]

我提供下面的代码。我想在spring启动的集成测试中使用嵌入式mongoDB的mongoDB事务特性。

@Profile("test")
@ActiveProfiles("test")
public class TestMongoConfig1 implements InitializingBean, DisposableBean {
MongodForTestsFactory factory = null;

MongodConfig mongodConfig = MongodConfig.builder().version(Version.Main.PRODUCTION).build();
MongodStarter runtime = MongodStarter.getDefaultInstance();
MongodExecutable mongodExecutable = null;
MongodProcess mongod = null;

@Override
public void destroy() throws Exception {
mongodExecutable.stop();

}
@Override
public void afterPropertiesSet() throws Exception {
mongodExecutable = runtime.prepare(mongodConfig);
mongod = mongodExecutable.start();
}

@Bean(name = "test1")
public MongoClient mongoClient() {
MongoClient mongoClient = MongoClients.create();
System.out.println("============================================");
System.out.println(mongoClient);
System.out.println("============================================");

return mongoClient;
}
}

Answer 1

首先，如果您使用@DataMongoTest，则必须在build.gradle中使用以下依赖项。

implementation("org.springframework.boot:spring-boot-starter-data-mongodb")
testImplementation("de.flapdoodle.embed:de.flapdoodle.embed.mongo")

要使用嵌入式MongoDB进行测试，您必须使用下面的代码片段，它可能有效。

@Profile("test")
@ActiveProfiles("test")
@Configuration
public class TestMongoConfig1 implements InitializingBean, DisposableBean {
private MongodExecutable executable;

@Override
public void afterPropertiesSet() throws Exception {
IFeatureAwareVersion version = Versions.withFeatures(new GenericVersion("4.0.0"), 
Version.Main.PRODUCTION.getFeatures());
IMongoCmdOptions cmdOptions = new 
MongoCmdOptionsBuilder().useNoPrealloc(false).useSmallFiles(false)
.master(false).verbose(false).useNoJournal(false).syncDelay(0).build();
int port = Network.getFreeServerPort();
IMongodConfig mongodConfig = new MongodConfigBuilder().version(version)
.net(new Net(port, Network.localhostIsIPv6())).replication(new Storage(null, "testRepSet", 5000))
.configServer(false).cmdOptions(cmdOptions).build();
MongodStarter starter = MongodStarter.getDefaultInstance();
executable = starter.prepare(mongodConfig);
executable.start();
}