当前测试版本如下：
- springboot 2.3.4.RELEASE
- minio 8.3.7
minio+Springboot 高性能分布式存储
一、安装
办法有很多，可以参照官网说明
可以区分部署的形式，分为Linux(Docker,wget)/K8S/MasOS/Windows/Source这些形式
以下通过docker进行部署测试
a@b:~$ docker run -d -p 9000:9000 -p 9001:9001 --name minioserver -v ~/docker/minio/data:/data -e "MINIO_ROOT_USER=user" -e "MINIO_ROOT_PASSWORD=password" minio/minio server /data --console-address ":9001" --address ":9000"
console at port 9001 ,api at port 9000
二、结合SpringBoot进行文件获取和保存
坑点: 8.3.7版本对接后，出现异常
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.3.4.RELEASE)
engine: [Apache Tomcat/9.0.38]
2022-03-30 13:24:59.814 INFO 1605 --- [ restartedMain] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2022-03-30 13:24:59.814 INFO 1605 --- [ restartedMain] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 1310 ms
2022-03-30 13:24:59.887 WARN 1605 --- [ restartedMain] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'testController': Unsatisfied dependency expressed through field 'minioService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'minioService': Unsatisfied dependency expressed through field 'minioClient'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'minioClient' defined in class path resource [com/learning/minio/config/MinioConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [io.minio.MinioClient]: Factory method 'minioClient' threw exception; nested exception is java.lang.ExceptionInInitializerError
2022-03-30 13:24:59.889 INFO 1605 --- [ restartedMain] o.apache.catalina.core.StandardService : Stopping service [Tomcat]
2022-03-30 13:24:59.903 INFO 1605 --- [ restartedMain] ConditionEvaluationReportLoggingListener :
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2022-03-30 13:24:59.911 ERROR 1605 --- [ restartedMain] o.s.b.d.LoggingFailureAnalysisReporter :
***************************
APPLICATION FAILED TO START
***************************
Description:
An attempt was made to call a method that does not exist. The attempt was made from the following location:
io.minio.S3Base.<clinit>(S3Base.java:98)
The following method did not exist:
okhttp3.RequestBody.create([BLokhttp3/MediaType;)Lokhttp3/RequestBody;
The method's class, okhttp3.RequestBody, is available from the following locations:
jar:file:~/.m2/repository/com/squareup/okhttp3/okhttp/3.14.9/okhttp-3.14.9.jar!/okhttp3/RequestBody.class
The class hierarchy was loaded from the following locations:
okhttp3.RequestBody: file:~/.m2/repository/com/squareup/okhttp3/okhttp/3.14.9/okhttp-3.14.9.jar
Action:
Correct the classpath of your application so that it contains a single, compatible version of okhttp3.RequestBody
Process finished with exit code 0
看到提示是OKhttp的问题，由于minio底层要依赖okhttp进行和minio服务端进行通信，考虑是多个okhttp版本造成冲突
解决一 降低minio版本
此处是因为是测试，如果是生产所需可以考虑降低minio版本至8.2.X，具体需要测试下（看到8.2.2是正常的
解决二 剔除冲突的okhttp版本，添加适配的版本
Unsupported OkHttp library found. Must use okhttp >= 4.8
okhttp-4.8及以上版本均可
<dependency>
<groupId>io.minio</groupId>
<artifactId>minio</artifactId>
<version>8.3.7</version>
<exclusions>
<exclusion>
<groupId>com.squareup.okhttp3</groupId>
<artifactId>okhttp</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>com.squareup.okhttp3</groupId>
<artifactId>okhttp</artifactId>
<version>4.9.0</version>
</dependency>
实战
根据自定义配置，配置客户端对象
@Bean
public MinioClient minioClient() {
return MinioClient.builder()
.endpoint(url)
.credentials(accessKey, secretKey)
.build();
}
具体demo参考代码，赶快have a try【Github:CzyerChen/springboot-forall/boot-for-minio】
