flink写文件到oss上，flink有oss的连接器吗 ？

Apache Flink 本身并没有提供直接写入OSS(Object Storage Service)的连接器，但可以通过使用Hadoop FileSystem的接口进行操作，以下是详细的步骤：

1. 引入依赖

在项目的pom.xml文件中添加以下依赖：

<dependency>
    <groupId>org.apache.flink</groupId>
    <artifactId>flinkconnectorfilesystem_2.11</artifactId>
    <version>${flink.version}</version>
</dependency>
<dependency>
    <groupId>com.aliyun.openservices</groupId>
    <artifactId>aliyunsdkoss</artifactId>
    <version>3.13.1</version>
</dependency>

2. 创建OSS连接

首先需要创建一个OSSClient对象，用于后续的文件上传和下载操作。

import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
String endpoint = "osscnhangzhou.aliyuncs.com";
String accessKeyId = "yourAccessKeyId";
String accessKeySecret = "yourAccessKeySecret";
OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);

3. 使用Flink写入文件到OSS

在Flink中，可以使用StreamingFileSink将数据流写入到OSS。

import org.apache.flink.core.fs.Path;
import org.apache.flink.streaming.api.functions.sink.filesystem.StreamingFileSink;
import org.apache.flink.streaming.api.functions.sink.filesystem.rollingpolicies.DefaultRollingPolicy;
import org.apache.flink.streaming.api.functions.sink.filesystem.rollingpolicies.OnCheckpointRollingPolicy;
import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
import org.apache.flink.streaming.api.functions.sink.filesystem.rollingpolicies.RollingFileSink;
import org.apache.flink.streaming.api.functions.sink.filesystem.rollingpolicies.RollingPolicy;
import org.apache.flink.streaming.api.functions.sink.filesystem.rollingpolicies.TimeRollingPolicy;
import org.apache.flink.streaming.api.functions.sink.filesystem.rollingpolicies.SizeRollingPolicy;
import org.apache.flink.streaming.api.functions.sink.filesystem.rollingpolicies.DefaultRollingPolicy;
import org.apache.flink.streaming.api.functions.sink.filesystem.rollingpolicies.OnCheckpointRollingPolicy;
import org.apache.flink.streaming.api.functions.sink.filesystem.rollingpolicies.RollingFileSink;
import org.apache.flink.streaming.api.functions.sink.filesystem.rollingpolicies.RollingPolicy;
import org.apache.flink.streaming.api.functions.sink.filesystem.rollingpolicies.TimeRollingPolicy;
import org.apache.flink.streaming.api.functions.sink.filesystem.rollingpolicies.SizeRollingPolicy;
import org.apache.flink.streaming.api.functions.sink.filesystem.rollingpolicies.DefaultRollingPolicy;
import org.apache.flink.streaming.api.functions.sink.filesystem.rollingpolicies.OnCheckpointRollingPolicy;
import org.apache.flink.streaming.api.functions.sink.filesystem.rollingpolisies.TimeRollingPolicy;
import org.apache.flink.streaming.api.functions.sink.filesystem.rollingpolicies.SizeRollingPolicy;
import org.apache.flink.streaming.api.functions.sink.filesystem.rollingpolicies.DefaultRollingPolicy;
import org.apache.flink.streaming.api.functions.sink.filesystem.rollingpolicies.OnCheckpointRollingPolicy;
import org.apache.flink.streaming.api.functions.sink.filesystem.rollingpolicies.RollingFileSink;
import org.apache.flink.streaming.api.functions.sink.filesystem.rollingpolicies.RollingPolicy;
import org.apache.flink.streaming.api.functions.sink.filesystem.rollingpolicies.TimeRollingPolicy;
import org.apache.flink.streaming.api.functions.sink.filesystem.rollingpolicies.SizeRollingPolicy;
import org.apache.flink.streaming.api.functions.sink.filesystem.rollingpolicies.DefaultRollingPolicy;
import org.apache.flink.streaming.api.functions.sink.filesystem.rollingpolicies.OnCheckpointRollingPolicy;
import org.apache.flink.streaming.api.functions.sink.filesystem.rollingpolicies.RollingFileSink;
import org.apache.flink.streaming.api.functions.sink.filesystem.rollingpolicies.RollingPolicy;
import org.apache.flink.streaming.api.functions.sink.filesystem.rollingpolicies.TimeRollingPolicy;
import org.apache.flink.streaming.api.functions.sink.filesystem.rollingpolicies.SizeRollingPolicy;
import org.apache.flink.streaming.api.functions.sink.filesystem.rollingpolicies.DefaultRollingPolicy;
import org.apache.flink.streaming.api.functions.sink.filesystem.rollingpolicies.OnCheckpointRollingPolicy;
import org.apache.flink.streaming.api.functions.sink.filesystem.rollingpolicies.RollingFileSink;
import org.apache.flink.streaming.api.functions.sink.filesystem.rollingpolicies.RollingPolicy;
import org.apache.flink.streaming.api.functions.sink.filesystem.rollingpolicies.TimeRollingPolicy;
import org.apache.flink.streaming.api.functions.sink.filesystem.rollingpolicies.SizeRollingPolicy;
import org.apache.flink.streaming.api.functions.sink.filesystem.rollingpolicies.DefaultRollingPolicy;
import org.apache.flink.streaming.api.functions.sink.filesystem.rollingpolicies.OnCheckpointRollingPolicy;
import org.apache.flink.streaming.api.functions.sink.filesystem.rollingpolicies.RollingFileSink;
import org.apache.flink.streaming.api.functions.sink.filesystem.rollingpolicies.RollingPolicy;
import org.apache.flink.streaming.api.functions.sink.filesystem.rollingpolicies.TimeRollingPolicy;
import orgsrvice flinkx:
import org.apache.flinkx

在Flink中，可以使用StreamingFileSink将数据流写入到OSS。

import org.apache.flinkx

在Flink中，可以使用StreamingFileSink将数据流写入到OSS。

import org.apache.flinkx

在Flink中，可以使用StreamingFileSink将数据流写入到OSS。

import org.apache.flinkx

在Flink中，可以使用StreamingFileSink将数据流写入到OSS。

import org.apache.flinkx

在Flink中，可以使用StreamingFileSink将数据流写入到OSS。

import org.apache.flinkx

在Flink中，可以使用StreamingFileSink将数据流写入到OSS。

import org.apache.flinkx

在Flink中，可以使用StreamingFileSink将数据流写入到OSS。

import org.apache.flinkx

在Flink中，可以使用StreamingFileSink将数据