问题
I'm having trouble getting my brand new project to build. I used https://start.spring.io/ to generate a fresh new Spring 2.0 MongoDB Maven project, and I want to have an embedded MongoDB database for my integration tests. The spring initializer added a dependency for de.flapdoodle.embed.mongo to that end.
But every time I try to run a "mvn clean package", I get the following error during my test:
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]:
Invocation of init method failed; nested exception is java.io.IOException:
Could not start process: <EOF>
at de.flapdoodle.embed.mongo.AbstractMongoProcess.onAfterProcessStart(AbstractMongoProcess.java:79) ~[de.flapdoodle.embed.mongo-2.0.3.jar:na]
at de.flapdoodle.embed.process.runtime.AbstractProcess.<init>(AbstractProcess.java:116) ~[de.flapdoodle.embed.process-2.0.2.jar:na]
at de.flapdoodle.embed.mongo.AbstractMongoProcess.<init>(AbstractMongoProcess.java:53) ~[de.flapdoodle.embed.mongo-2.0.3.jar:na]
at de.flapdoodle.embed.mongo.MongodProcess.<init>(MongodProcess.java:50) ~[de.flapdoodle.embed.mongo-2.0.3.jar:na]
at de.flapdoodle.embed.mongo.MongodExecutable.start(MongodExecutable.java:44) ~[de.flapdoodle.embed.mongo-2.0.3.jar:na]
at de.flapdoodle.embed.mongo.MongodExecutable.start(MongodExecutable.java:34) ~[de.flapdoodle.embed.mongo-2.0.3.jar:na]
at de.flapdoodle.embed.process.runtime.Executable.start(Executable.java:108) ~[de.flapdoodle.embed.process-2.0.2.jar:na]
What am I missing?
My Application file is pretty straightforward:
@SpringBootApplication
public class NewnewinternetApplication {
public static void main(String[] args) {
SpringApplication.run(NewnewinternetApplication.class, args);
}
}
My Config file is very simple:
@Configuration
@EnableMongoRepositories
@ComponentScan(basePackages = "com.snoop.dougg.newnewinternet")
public class AppConfig {
@Bean
public InternalResourceViewResolver viewResolver() {
InternalResourceViewResolver resolver = new InternalResourceViewResolver();
resolver.setPrefix("/");
resolver.setSuffix(".html");
return resolver;
}
}
I have two simple controllers returning just static output for now.
I have a little document:
@Document(collection = "user")
public class User implements Serializable {
protected static final long serialVersionUID = -1L;
@Id
private String id;
private String username;
private String firstName;
private String lastName;
public User() {}
public User(String username, String firstName, String lastName) {
this.username = username;
this.firstName = firstName;
this.lastName = lastName;
}
//Getters, setters, and equals and hash code methods...
}
And then a silly little test:
@RunWith(SpringRunner.class)
//@SpringBootTest -> Doesn't work either
@DataMongoTest
public class NewnewinternetApplicationTests {
@Autowired
private MongoTemplate mongoTemplate;
@Test
public void sillyLittleTest() {
mongoTemplate.save(new User("sdoug", "Snoop", "Dougg"));
Assert.notNull(
mongoTemplate.find(
new Query(Criteria.where("firstName").is("Snoop")), User.class),
"Couldn't find by first name!");
}
}
And then my pom file, which I really just left alone:
<?xml version="1.0" encoding="UTF-8"?>
<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.snoop.dougg.newnewinternet</groupId>
<artifactId>NewNewInternet</artifactId>
<version>0.0.1</version>
<packaging>jar</packaging>
<name>NewNewInternet</name>
<description>A new new internet</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.1.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<azure.version>2.0.1</azure.version>
<java.version>1.8</java.version>
<spring-cloud.version>Finchley.M9</spring-cloud.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-mongodb</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>com.microsoft.azure</groupId>
<artifactId>azure-active-directory-spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>com.microsoft.azure</groupId>
<artifactId>azure-keyvault-secrets-spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>com.microsoft.azure</groupId>
<artifactId>azure-spring-boot</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-oauth2</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.session</groupId>
<artifactId>spring-session-core</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>de.flapdoodle.embed</groupId>
<artifactId>de.flapdoodle.embed.mongo</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<groupId>com.microsoft.azure</groupId>
<artifactId>azure-spring-boot-bom</artifactId>
<version>${azure.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
</project>
回答1:
I was in the same situation, and I could resolve it using @DirtiesContext on this way:
@DirtiesContext(classMode = ClassMode.AFTER_EACH_TEST_METHOD)
public class CommoditiesApplicationTests {
}
回答2:
chances are the instance of mongodb downloaded through the spring plugin is 32 & you are running on 64 bit java or vice versa. Please confirm if there is any other way you have identified the fix.
回答3:
My case was a bit special, but maybe this help someone else too to resolve this.
If, by any chance, you are using win 10 and you have already a MongoDB running as a service (in my case it was an earlier version - v3.4 - running), then try to stop the service, and run the test afterwards.
回答4:
Try to add @DirtiesContext to the test class level.
回答5:
I had the pretty same scenario here, and solved it using
<dependency>
<groupId>com.github.fakemongo</groupId>
<artifactId>fongo</artifactId>
<version>2.1.1</version>
<scope>test</scope>
</dependency>
instead of de.flapdoodle.embed.mongo
回答6:
Commenting out the following lines in application.properties and placing them in a different profile can also work. I found it here
spring.data.mongodb.database=
spring.data.mongodb.host=
spring.data.mongodb.port=
来源：https://stackoverflow.com/questions/49990340/why-does-my-flapdoodle-embedded-mongodb-test-fail-to-run-creating-embeddedmon