SpringBoot3.x嵌入MongoDB进行测试的步骤详解
作者：HBLOG
本文介绍了在 Spring Boot 应用中使用Flapdoodle Embed Mongo进行 MongoDB 测试的方法,包括Embed Mongo 的概念,添加依赖、配置、运行测试的步骤,还列举了其优势如快速启动关闭、环境一致、无需外部依赖等,以及注意事项和结论,需要的朋友可以参考下
在现代应用开发中，数据库是不可或缺的一部分。对于使用 MongoDB 的 Java 应用，进行单元测试时，通常需要一个轻量级的数据库实例。de.flapdoodle.embed.mongo 是一个非常有用的库，它允许开发者在测试中嵌入 MongoDB 实例，而无需在本地或 CI 环境中安装 MongoDB。本文将介绍如何在 Spring Boot 应用中使用 Flapdoodle Embed Mongo。
1. 什么是Embed Mongo？
Embed Mongo 是一个用于在 Java 应用中嵌入 MongoDB 的库。它可以在测试期间启动和停止 MongoDB 实例，确保测试环境的干净和一致性。这个库特别适合于单元测试和集成测试，因为它可以快速启动和关闭 MongoDB 实例。
2. 添加依赖
在使用 Flapdoodle Embed Mongo 之前，需要在 Maven 项目的 pom.xml 文件中添加相关依赖：
<?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">
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>3.2.1</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>embedded-mongodb</artifactId>
<properties>
<maven.compiler.source>17</maven.compiler.source>
<maven.compiler.target>17</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-autoconfigure</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-mongodb</artifactId>
</dependency>
<dependency>
<groupId>de.flapdoodle.embed</groupId>
<artifactId>de.flapdoodle.embed.mongo.spring3x</artifactId>
<version>4.18.0</version>
</dependency>
</dependencies>
</project>
3. 配置嵌入式 MongoDB
在测试类中配置嵌入式 MongoDB。以下是一个示例代码，展示了如何在 JUnit 测试中使用 Flapdoodle Embed Mongo：
package com.et;
import org.bson.Document;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.test.autoconfigure.data.mongo.AutoConfigureDataMongo;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.test.annotation.DirtiesContext;
import org.springframework.test.context.ContextConfiguration;
import static org.assertj.core.api.Assertions.as;
import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.InstanceOfAssertFactories.LIST;
import static org.assertj.core.api.InstanceOfAssertFactories.MAP;
@AutoConfigureDataMongo
@SpringBootTest(
properties = {
"de.flapdoodle.mongodb.embedded.version=4.4.18",
"spring.data.mongodb.username=customUser",
"spring.data.mongodb.password=userPassword123",
}
)
@EnableAutoConfiguration
@DirtiesContext
public class AuthTest {
@Test
void example(@Autowired final MongoTemplate mongoTemplate) {
assertThat(mongoTemplate.getDb()).isNotNull();
mongoTemplate.getDb().getCollection("first").insertOne(new Document("value","a"));
mongoTemplate.getDb().getCollection("second").insertOne(new Document("value","b"));
Document result = mongoTemplate.getDb().runCommand(new Document("listCollections", 1));
assertThat(result).containsEntry("ok", 1.0);
assertThat(result)
.extracting(doc -> doc.get("cursor"), as(MAP))
.containsKey("firstBatch")
.extracting(cursor -> cursor.get("firstBatch"), as(LIST))
.hasSize(2)
.anySatisfy(collection -> assertThat(collection)
.isInstanceOfSatisfying(Document.class, col -> assertThat(col)
.extracting(c -> c.get("name")).isEqualTo("first")))
.anySatisfy(collection -> assertThat(collection)
.isInstanceOfSatisfying(Document.class, col -> assertThat(col)
.extracting(c -> c.get("name")).isEqualTo("second")));
}
}
@AutoConfigureDataMongo：自动配置 MongoDB 数据库，适用于测试环境。@SpringBootTest：标记这个类为 Spring Boot 测试类，允许加载 Spring 上下文。properties属性用于设置嵌入式 MongoDB 的版本和数据库的用户名、密码。@EnableAutoConfiguration：启用 Spring Boot 的自动配置功能。@DirtiesContext：在测试后重置 Spring 上下文，以确保每个测试都有一个干净的上下文。
以上只是一些关键代码。
4. 运行测试
运行测试类，返回日志如下
2024-12-09T14:47:07.859+08:00 INFO 3128 --- [ main] com.et.AuthTest : Starting AuthTest using Java 17.0.9 with PID 3128 (started by Dell in D:\IdeaProjects\ETFramework\embedded-mongodb)
2024-12-09T14:47:07.862+08:00 INFO 3128 --- [ main] com.et.AuthTest : No active profile set, falling back to 1 default profile: "default"
2024-12-09T14:47:08.951+08:00 INFO 3128 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data MongoDB repositories in DEFAULT mode.
2024-12-09T14:47:08.984+08:00 INFO 3128 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 24 ms. Found 0 MongoDB repository interfaces.
2024-12-09T14:47:09.310+08:00 WARN 3128 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'de.flapdoodle.embed.mongo.spring.autoconfigure.EmbeddedMongoAutoConfiguration' of type [de.flapdoodle.embed.mongo.spring.autoconfigure.EmbeddedMongoAutoConfiguration] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying). The currently created BeanPostProcessor [fixTransactionAndAuth] is declared through a non-static factory method on that class; consider declaring it as static instead.
2024-12-09T14:47:09.354+08:00 WARN 3128 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'de.flapdoodle.mongodb.embedded-de.flapdoodle.embed.mongo.spring.autoconfigure.EmbeddedMongoProperties' of type [de.flapdoodle.embed.mongo.spring.autoconfigure.EmbeddedMongoProperties] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying). Is this bean getting eagerly injected into a currently created BeanPostProcessor [fixTransactionAndAuth]? Check the corresponding BeanPostProcessor declaration and its dependencies.
2024-12-09T14:47:09.397+08:00 WARN 3128 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'net' of type [de.flapdoodle.embed.mongo.config.ImmutableNet] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying). Is this bean getting eagerly injected into a currently created BeanPostProcessor [fixTransactionAndAuth]? Check the corresponding BeanPostProcessor declaration and its dependencies.
2024-12-09T14:47:09.403+08:00 WARN 3128 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'spring.data.mongodb-org.springframework.boot.autoconfigure.mongo.MongoProperties' of type [org.springframework.boot.autoconfigure.mongo.MongoProperties] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying). Is this bean getting eagerly injected into a currently created BeanPostProcessor [fixTransactionAndAuth]? Check the corresponding BeanPostProcessor declaration and its dependencies.
2024-12-09T14:47:10.260+08:00 INFO 3128 --- [ main] d.f.e.m.s.a.SyncClientServerFactory : sync server factory
2024-12-09T14:47:10.482+08:00 INFO 3128 --- [ main] d.f.e.mongo.commands.MongodArguments :
---------------------------------------
hint: auth==true starts mongod with authorization enabled.
---------------------------------------
2024-12-09T14:47:11.795+08:00 INFO 3128 --- [ main] d.f.e.m.s.autoconfigure.EmbeddedMongo : download https://fastdl.mongodb.org/windows/mongodb-windows-x86_64-4.4.18.zip : starting...
2024-12-09T14:47:11.798+08:00 INFO 3128 --- [ main] d.f.e.m.s.autoconfigure.EmbeddedMongo : download https://fastdl.mongodb.org/windows/mongodb-windows-x86_64-4.4.18.zip : 0 %
2024-12-09T14:47:27.750+08:00 INFO 3128 --- [ main] d.f.e.m.s.autoconfigure.EmbeddedMongo : download https://fastdl.mongodb.org/windows/mongodb-windows-x86_64-4.4.18.zip : 10 %
2024-12-09T14:47:46.534+08:00 INFO 3128 --- [ main] d.f.e.m.s.autoconfigure.EmbeddedMongo : download https://fastdl.mongodb.org/windows/mongodb-windows-x86_64-4.4.18.zip : 20 %
2024-12-09T14:48:01.351+08:00 INFO 3128 --- [ main] d.f.e.m.s.autoconfigure.EmbeddedMongo : download https://fastdl.mongodb.org/windows/mongodb-windows-x86_64-4.4.18.zip : 30 %
2024-12-09T14:48:14.834+08:00 INFO 3128 --- [ main] d.f.e.m.s.autoconfigure.EmbeddedMongo : download https://fastdl.mongodb.org/windows/mongodb-windows-x86_64-4.4.18.zip : 40 %
2024-12-09T14:48:28.763+08:00 INFO 3128 --- [ main] d.f.e.m.s.autoconfigure.EmbeddedMongo : download https://fastdl.mongodb.org/windows/mongodb-windows-x86_64-4.4.18.zip : 50 %
2024-12-09T14:48:41.964+08:00 INFO 3128 --- [ main] d.f.e.m.s.autoconfigure.EmbeddedMongo : download https://fastdl.mongodb.org/windows/mongodb-windows-x86_64-4.4.18.zip : 60 %
2024-12-09T14:48:55.361+08:00 INFO 3128 --- [ main] d.f.e.m.s.autoconfigure.EmbeddedMongo : download https://fastdl.mongodb.org/windows/mongodb-windows-x86_64-4.4.18.zip : 70 %
2024-12-09T14:49:08.897+08:00 INFO 3128 --- [ main] d.f.e.m.s.autoconfigure.EmbeddedMongo : download https://fastdl.mongodb.org/windows/mongodb-windows-x86_64-4.4.18.zip : 80 %
2024-12-09T14:49:21.762+08:00 INFO 3128 --- [ main] d.f.e.m.s.autoconfigure.EmbeddedMongo : download https://fastdl.mongodb.org/windows/mongodb-windows-x86_64-4.4.18.zip : 90 %
2024-12-09T14:49:39.435+08:00 INFO 3128 --- [ main] d.f.e.m.s.autoconfigure.EmbeddedMongo : download https://fastdl.mongodb.org/windows/mongodb-windows-x86_64-4.4.18.zip : finished
2024-12-09T14:49:40.936+08:00 INFO 3128 --- [ Thread-3] d.f.e.m.s.autoconfigure.EmbeddedMongo : {"t":{"$date":"2024-12-09T14:49:40.936+08:00"},"s":"I", "c":"CONTROL", "id":23285, "ctx":"main","msg":"Automatically disabling TLS 1.0, to force-enable TLS 1.0 specify --sslDisabledProtocols 'none'"}
2024-12-09T14:49:40.940+08:00 INFO 3128 --- [ Thread-3] d.f.e.m.s.autoconfigure.EmbeddedMongo : {"t":{"$date":"2024-12-09T14:49:40.941+08:00"},"s":"I", "c":"NETWORK", "id":4648602, "ctx":"main","msg":"Implicit TCP FastOpen in use."}
2024-12-09T14:49:40.941+08:00 INFO 3128 --- [ Thread-3] d.f.e.m.s.autoconfigure.EmbeddedMongo : {"t":{"$date":"2024-12-09T14:49:40.942+08:00"},"s":"I", "c":"STORAGE", "id":4615611, "ctx":"initandlisten","msg":"MongoDB starting","attr":{"pid":1564,"port":55855,"dbPath":"C:/Users/Dell/AppData/Local/Temp/temp--1e662e0c-8152-4e9b-85bf-e7a1b889a385/mongod-database4734833998090360154","architecture":"64-bit","host":"BJDPLHHUAPC"}}
2024-12-09T14:49:40.942+08:00 INFO 3128 --- [ Thread-3] d.f.e.m.s.autoconfigure.EmbeddedMongo : {"t":{"$date":"2024-12-09T14:49:40.942+08:00"},"s":"I", "c":"CONTROL", "id":23398, "ctx":"initandlisten","msg":"Target operating system minimum version","attr":{"targetMinOS":"Windows 7/Windows Server 2008 R2"}}
2024-12-09T14:49:40.942+08:00 INFO 3128 --- [ Thread-3] d.f.e.m.s.autoconfigure.EmbeddedMongo : {"t":{"$date":"2024-12-09T14:49:40.942+08:00"},"s":"I", "c":"CONTROL", "id":23403, "ctx":"initandlisten","msg":"Build Info","attr":{"buildInfo":{"version":"4.4.18","gitVersion":"8ed32b5c2c68ebe7f8ae2ebe8d23f36037a17dea","modules":[],"allocator":"tcmalloc","environment":{"distmod":"windows","distarch":"x86_64","target_arch":"x86_64"}}}}
2024-12-09T14:49:40.942+08:00 INFO 3128 --- [ Thread-3] d.f.e.m.s.autoconfigure.EmbeddedMongo : {"t":{"$date":"2024-12-09T14:49:40.942+08:00"},"s":"I", "c":"CONTROL", "id":51765, "ctx":"initandlisten","msg":"Operating System","attr":{"os":{"name":"Microsoft Windows 10","version":"10.0 (build 19045)"}}}
2024-12-09T14:49:40.942+08:00 INFO 3128 --- [ Thread-3] d.f.e.m.s.autoconfigure.EmbeddedMongo : {"t":{"$date":"2024-12-09T14:49:40.942+08:00"},"s":"I", "c":"CONTROL", "id":21951, "ctx":"initandlisten","msg":"Options set by command line","attr":{"options":{"net":{"bindIp":"127.0.0.1","port":55855},"security":{"authorization":"enabled"},"storage":{"dbPath":"C:\\Users\\Dell\\AppData\\Local\\Temp\\temp--1e662e0c-8152-4e9b-85bf-e7a1b889a385\\mongod-database4734833998090360154","journal":{"enabled":false},"syncPeriodSecs":0.0}}}}
2024-12-09T14:49:40.943+08:00 INFO 3128 --- [ Thread-3] d.f.e.m.s.autoconfigure.EmbeddedMongo : {"t":{"$date":"2024-12-09T14:49:40.944+08:00"},"s":"I", "c":"STORAGE", "id":22315, "ctx":"initandlisten","msg":"Opening WiredTiger","attr":{"config":"create,cache_size=15732M,session_max=33000,eviction=(threads_min=4,threads_max=4),config_base=false,statistics=(fast),log=(enabled=true,archive=true,path=journal,compressor=snappy),file_manager=(close_idle_time=100000,close_scan_interval=10,close_handle_minimum=250),statistics_log=(wait=0),verbose=[recovery_progress,checkpoint_progress,compact_progress],,log=(enabled=false),"}}
2024-12-09T14:49:40.973+08:00 INFO 3128 --- [ Thread-3] d.f.e.m.s.autoconfigure.EmbeddedMongo : {"t":{"$date":"2024-12-09T14:49:40.973+08:00"},"s":"I", "c":"STORAGE", "id":22430, "ctx":"initandlisten","msg":"WiredTiger message","attr":{"message":"[1733726980:972932][1564:140732446234768], txn-recover: [WT_VERB_RECOVERY | WT_VERB_RECOVERY_PROGRESS] Set global recovery timestamp: (0, 0)"}}
2024-12-09T14:49:40.973+08:00 INFO 3128 --- [ Thread-3] d.f.e.m.s.autoconfigure.EmbeddedMongo : {"t":{"$date":"2024-12-09T14:49:40.973+08:00"},"s":"I", "c":"STORAGE", "id":22430, "ctx":"initandlisten","msg":"WiredTiger message","attr":{"message":"[1733726980:973932][1564:140732446234768], txn-recover: [WT_VERB_RECOVERY | WT_VERB_RECOVERY_PROGRESS] Set global oldest timestamp: (0, 0)"}}
2024-12-09T14:49:41.015+08:00 INFO 3128 --- [ Thread-3] d.f.e.m.s.autoconfigure.EmbeddedMongo : {"t":{"$date":"2024-12-09T14:49:41.015+08:00"},"s":"I", "c":"STORAGE", "id":4795906, "ctx":"initandlisten","msg":"WiredTiger opened","attr":{"durationMillis":71}}
2024-12-09T14:49:41.015+08:00 INFO 3128 --- [ Thread-3] d.f.e.m.s.autoconfigure.EmbeddedMongo : {"t":{"$date":"2024-12-09T14:49:41.016+08:00"},"s":"I", "c":"RECOVERY", "id":23987, "ctx":"initandlisten","msg":"WiredTiger recoveryTimestamp","attr":{"recoveryTimestamp":{"$timestamp":{"t":0,"i":0}}}}
2024-12-09T14:49:41.056+08:00 INFO 3128 --- [ Thread-3] d.f.e.m.s.autoconfigure.EmbeddedMongo : {"t":{"$date":"2024-12-09T14:49:41.057+08:00"},"s":"I", "c":"STORAGE", "id":22262, "ctx":"initandlisten","msg":"Timestamp monitor starting"}
2024-12-09T14:49:41.066+08:00 INFO 3128 --- [ Thread-3] d.f.e.m.s.autoconfigure.EmbeddedMongo : {"t":{"$date":"2024-12-09T14:49:41.066+08:00"},"s":"I", "c":"STORAGE", "id":20320, "ctx":"initandlisten","msg":"createCollection","attr":{"namespace":"admin.system.version","uuidDisposition":"provided","uuid":{"uuid":{"$uuid":"4b54d1be-03c7-49af-88f1-9d3712096917"}},"options":{"uuid":{"$uuid":"4b54d1be-03c7-49af-88f1-9d3712096917"}}}}
2024-12-09T14:49:41.101+08:00 INFO 3128 --- [ Thread-3] d.f.e.m.s.autoconfigure.EmbeddedMongo : {"t":{"$date":"2024-12-09T14:49:41.102+08:00"},"s":"I", "c":"INDEX", "id":20345, "ctx":"initandlisten","msg":"Index build: done building","attr":{"buildUUID":null,"namespace":"admin.system.version","index":"_id_","commitTimestamp":{"$timestamp":{"t":0,"i":0}}}}
2024-12-09T14:49:41.102+08:00 INFO 3128 --- [ Thread-3] d.f.e.m.s.autoconfigure.EmbeddedMongo : {"t":{"$date":"2024-12-09T14:49:41.102+08:00"},"s":"I", "c":"COMMAND", "id":20459, "ctx":"initandlisten","msg":"Setting featureCompatibilityVersion","attr":{"newVersion":"4.4"}}
2024-12-09T14:49:41.105+08:00 INFO 3128 --- [ Thread-3] d.f.e.m.s.autoconfigure.EmbeddedMongo : {"t":{"$date":"2024-12-09T14:49:41.105+08:00"},"s":"I", "c":"STORAGE", "id":20536, "ctx":"initandlisten","msg":"Flow Control is enabled on this deployment"}
2024-12-09T14:49:41.108+08:00 INFO 3128 --- [ Thread-3] d.f.e.m.s.autoconfigure.EmbeddedMongo : {"t":{"$date":"2024-12-09T14:49:41.109+08:00"},"s":"I", "c":"STORAGE", "id":20320, "ctx":"initandlisten","msg":"createCollection","attr":{"namespace":"local.startup_log","uuidDisposition":"generated","uuid":{"uuid":{"$uuid":"58fa3f13-3396-4738-8475-95d295160a24"}},"options":{"capped":true,"size":10485760}}}
2024-12-09T14:49:41.140+08:00 INFO 3128 --- [ Thread-3] d.f.e.m.s.autoconfigure.EmbeddedMongo : {"t":{"$date":"2024-12-09T14:49:41.140+08:00"},"s":"I", "c":"INDEX", "id":20345, "ctx":"initandlisten","msg":"Index build: done building","attr":{"buildUUID":null,"namespace":"local.startup_log","index":"_id_","commitTimestamp":{"$timestamp":{"t":0,"i":0}}}}
2024-12-09T14:49:42.185+08:00 INFO 3128 --- [ Thread-3] d.f.e.m.s.autoconfigure.EmbeddedMongo : {"t":{"$date":"2024-12-09T14:49:42.186+08:00"},"s":"I", "c":"FTDC", "id":20625, "ctx":"initandlisten","msg":"Initializing full-time diagnostic data capture","attr":{"dataDirectory":"C:/Users/Dell/AppData/Local/Temp/temp--1e662e0c-8152-4e9b-85bf-e7a1b889a385/mongod-database4734833998090360154/diagnostic.data"}}
2024-12-09T14:49:42.186+08:00 INFO 3128 --- [ Thread-3] d.f.e.m.s.autoconfigure.EmbeddedMongo : {"t":{"$date":"2024-12-09T14:49:42.186+08:00"},"s":"I", "c":"REPL", "id":6015317, "ctx":"initandlisten","msg":"Setting new configuration state","attr":{"newState":"ConfigReplicationDisabled","oldState":"ConfigPreStart"}}
2024-12-09T14:49:42.188+08:00 INFO 3128 --- [ Thread-3] d.f.e.m.s.autoconfigure.EmbeddedMongo : {"t":{"$date":"2024-12-09T14:49:42.188+08:00"},"s":"I", "c":"NETWORK", "id":23015, "ctx":"listener","msg":"Listening on","attr":{"address":"127.0.0.1"}}
2024-12-09T14:49:42.189+08:00 INFO 3128 --- [ Thread-3] d.f.e.m.s.autoconfigure.EmbeddedMongo : {"t":{"$date":"2024-12-09T14:49:42.189+08:00"},"s":"I", "c":"NETWORK", "id":23016, "ctx":"listener","msg":"Waiting for connections","attr":{"port":55855,"ssl":"off"}}
2024-12-09T14:49:42.189+08:00 INFO 3128 --- [ Thread-3] d.f.e.m.s.autoconfigure.EmbeddedMongo : {"t":{"$date":"2024-12-09T14:49:42.189+08:00"},"s":"I", "c":"CONTROL", "id":20712, "ctx":"LogicalSessionCacheReap","msg":"Sessions collection is not set up; waiting until next sessions reap interval","attr":{"error":"NamespaceNotFound: config.system.sessions does not exist"}}
2024-12-09T14:49:42.189+08:00 INFO 3128 --- [ Thread-3] d.f.e.m.s.autoconfigure.EmbeddedMongo : {"t":{"$date":"2024-12-09T14:49:42.189+08:00"},"s":"I", "c":"STORAGE", "id":20320, "ctx":"LogicalSessionCacheRefresh","msg":"createCollection","attr":{"namespace":"config.system.sessions","uuidDisposition":"generated","uuid":{"uuid":{"$uuid":"ed455ffc-d5e2-4bbf-9bdc-55d2f5b3ec99"}},"options":{}}}
2024-12-09T14:49:42.229+08:00 INFO 3128 --- [ Thread-3] d.f.e.m.s.autoconfigure.EmbeddedMongo : {"t":{"$date":"2024-12-09T14:49:42.229+08:00"},"s":"I", "c":"INDEX", "id":20345, "ctx":"LogicalSessionCacheRefresh","msg":"Index build: done building","attr":{"buildUUID":null,"namespace":"config.system.sessions","index":"_id_","commitTimestamp":{"$timestamp":{"t":0,"i":0}}}}
2024-12-09T14:49:42.229+08:00 INFO 3128 --- [ Thread-3] d.f.e.m.s.autoconfigure.EmbeddedMongo : {"t":{"$date":"2024-12-09T14:49:42.229+08:00"},"s":"I", "c":"INDEX", "id":20345, "ctx":"LogicalSessionCacheRefresh","msg":"Index build: done building","attr":{"buildUUID":null,"namespace":"config.system.sessions","index":"lsidTTLIndex","commitTimestamp":{"$timestamp":{"t":0,"i":0}}}}
2024-12-09T14:49:42.317+08:00 INFO 3128 --- [ Thread-3] d.f.e.m.s.autoconfigure.EmbeddedMongo : {"t":{"$date":"2024-12-09T14:49:42.317+08:00"},"s":"I", "c":"NETWORK", "id":22943, "ctx":"listener","msg":"Connection accepted","attr":{"remote":"127.0.0.1:55997","connectionId":1,"connectionCount":1}}
2024-12-09T14:49:42.317+08:00 INFO 3128 --- [ Thread-3] d.f.e.m.s.autoconfigure.EmbeddedMongo : {"t":{"$date":"2024-12-09T14:49:42.318+08:00"},"s":"I", "c":"NETWORK", "id":22943, "ctx":"listener","msg":"Connection accepted","attr":{"remote":"127.0.0.1:55998","connectionId":2,"connectionCount":2}}
2024-12-09T14:49:42.327+08:00 INFO 3128 --- [ Thread-3] d.f.e.m.s.autoconfigure.EmbeddedMongo : {"t":{"$date":"2024-12-09T14:49:42.327+08:00"},"s":"I", "c":"ACCESS", "id":20248, "ctx":"conn2","msg":"note: no users configured in admin.system.users, allowing localhost access"}
2024-12-09T14:49:42.327+08:00 INFO 3128 --- [ Thread-3] d.f.e.m.s.autoconfigure.EmbeddedMongo : {"t":{"$date":"2024-12-09T14:49:42.327+08:00"},"s":"I", "c":"NETWORK", "id":51800, "ctx":"conn2","msg":"client metadata","attr":{"remote":"127.0.0.1:55998","client":"conn2","doc":{"driver":{"name":"mongo-java-driver|sync","version":"4.11.1"},"os":{"type":"Windows","name":"Windows 10","architecture":"amd64","version":"10.0"},"platform":"Java/JetBrains s.r.o./17.0.9+8-b1166.2"}}}
2024-12-09T14:49:42.327+08:00 INFO 3128 --- [ Thread-3] d.f.e.m.s.autoconfigure.EmbeddedMongo : {"t":{"$date":"2024-12-09T14:49:42.327+08:00"},"s":"I", "c":"NETWORK", "id":51800, "ctx":"conn1","msg":"client metadata","attr":{"remote":"127.0.0.1:55997","client":"conn1","doc":{"driver":{"name":"mongo-java-driver|sync","version":"4.11.1"},"os":{"type":"Windows","name":"Windows 10","architecture":"amd64","version":"10.0"},"platform":"Java/JetBrains s.r.o./17.0.9+8-b1166.2"}}}
2024-12-09T14:49:42.328+08:00 INFO 3128 --- [ main] org.mongodb.driver.client : MongoClient with metadata {"driver": {"name": "mongo-java-driver|sync", "version": "4.11.1"}, "os": {"type": "Windows", "name": "Windows 10", "architecture": "amd64", "version": "10.0"}, "platform": "Java/JetBrains s.r.o./17.0.9+8-b1166.2"} created with settings MongoClientSettings{readPreference=primary, writeConcern=WriteConcern{w=null, wTimeout=null ms, journal=null}, retryWrites=true, retryReads=true, readConcern=ReadConcern{level=null}, credential=null, transportSettings=null, streamFactoryFactory=null, commandListeners=[], codecRegistry=ProvidersCodecRegistry{codecProviders=[ValueCodecProvider{}, BsonValueCodecProvider{}, DBRefCodecProvider{}, DBObjectCodecProvider{}, DocumentCodecProvider{}, CollectionCodecProvider{}, IterableCodecProvider{}, MapCodecProvider{}, GeoJsonCodecProvider{}, GridFSFileCodecProvider{}, Jsr310CodecProvider{}, JsonObjectCodecProvider{}, BsonCodecProvider{}, EnumCodecProvider{}, com.mongodb.client.model.mql.ExpressionCodecProvider@642c72cf, com.mongodb.Jep395RecordCodecProvider@4e6cbdf1, com.mongodb.KotlinCodecProvider@67fac095]}, loggerSettings=LoggerSettings{maxDocumentLength=1000}, clusterSettings={hosts=[kubernetes.docker.internal:55855], srvServiceName=mongodb, mode=SINGLE, requiredClusterType=UNKNOWN, requiredReplicaSetName='null', serverSelector='null', clusterListeners='[]', serverSelectionTimeout='30000 ms', localThreshold='15 ms'}, socketSettings=SocketSettings{connectTimeoutMS=10000, readTimeoutMS=0, receiveBufferSize=0, proxySettings=ProxySettings{host=null, port=null, username=null, password=null}}, heartbeatSocketSettings=SocketSettings{connectTimeoutMS=10000, readTimeoutMS=10000, receiveBufferSize=0, proxySettings=ProxySettings{host=null, port=null, username=null, password=null}}, connectionPoolSettings=ConnectionPoolSettings{maxSize=100, minSize=0, maxWaitTimeMS=120000, maxConnectionLifeTimeMS=0, maxConnectionIdleTimeMS=0, maintenanceInitialDelayMS=0, maintenanceFrequencyMS=60000, connectionPoolListeners=[], maxConnecting=2}, serverSettings=ServerSettings{heartbeatFrequencyMS=10000, minHeartbeatFrequencyMS=500, serverListeners='[]', serverMonitorListeners='[]'}, sslSettings=SslSettings{enabled=false, invalidHostNameAllowed=false, context=null}, applicationName='null', compressorList=[], uuidRepresentation=UNSPECIFIED, serverApi=null, autoEncryptionSettings=null, dnsClient=null, inetAddressResolver=null, contextProvider=null}5. 优势
- 快速启动和关闭：嵌入式 MongoDB 可以快速启动和关闭，适合于频繁的测试。
- 环境一致性：每次测试都在一个干净的数据库环境中运行，避免了数据污染。
- 无需外部依赖：不需要在本地或 CI 环境中安装 MongoDB，减少了环境配置的复杂性。
5. 注意事项
- 确保使用的 MongoDB 版本与生产环境中的版本兼容。
- 根据需要调整 MongoDB 的配置，例如端口、数据库名称等。
结论
Flapdoodle Embed Mongo 是一个强大的工具，可以帮助开发者在 Java 应用中轻松地进行 MongoDB 测试。通过嵌入式 MongoDB，开发者可以确保测试的可靠性和一致性，从而提高开发效率。希望本文能帮助你在项目中顺利集成和使用 Flapdoodle Embed Mongo。
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