文件可上传至阿里云OSS中,也可以从OSS中下载文件。
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package com.fr.plugin.file.download.oss;
import com.aliyun.oss.OSSClient;
import com.aliyun.oss.model.OSSObject;
import com.fr.general.GeneralUtils;
import com.fr.general.IOUtils;
import com.fr.log.FineLoggerFactory;
import com.fr.plugin.oss.universal.config.OssUniversalConfig;
import com.fr.script.AbstractFunction;
import com.fr.stable.ArrayUtils;
import com.fr.stable.Primitive;
import javax.imageio.ImageIO;
import java.io.ByteArrayInputStream;
import java.io.IOException;
/**
* 将OSS中的文件已图片的方式展示到报表中来
*/
public class OssFile2Image extends AbstractFunction {
@Override
public Object run(Object[] args) {
int len = ArrayUtils.getLength(args);
if (len < 2) {
return Primitive.ERROR_VALUE;
}
String key = GeneralUtils.objectToString(args[0]);
String bucket = GeneralUtils.objectToString(args[1]);
OSSClient ossClient = new OSSClient(
OssUniversalConfig.getInstance().getEndPoint(),
OssUniversalConfig.getInstance().getAccessKeyId(),
OssUniversalConfig.getInstance().getRealAccessKeySecret());
OSSObject object = ossClient.getObject(bucket, key);
byte[] bytes = IOUtils.inputStream2Bytes(object.getObjectContent());
try {
return ImageIO.read(new ByteArrayInputStream(bytes));
} catch (IOException e) {
FineLoggerFactory.getLogger().error(e.getMessage(), e);
return Primitive.ERROR_VALUE;
}
}
}