<dependencies>
    <dependency>
        <groupId>com.aliyun.fc.runtime</groupId>
        <artifactId>fc-java-core</artifactId>
        <version>1.4.0</version>
    </dependency>
    <dependency>
        <groupId>com.aliyun.fc.runtime</groupId>
        <artifactId>fc-java-common</artifactId>
        <version>2.2.2</version>
    </dependency>
    <dependency>
        <groupId>commons-io</groupId>
        <artifactId>commons-io</artifactId>
        <version>2.11.0</version>
    </dependency>
</dependencies>
<build>
    <finalName>zip-oss</finalName>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-dependency-plugin</artifactId>
            <executions>
                <execution>
                    <id>copy-dependencies</id>
                    <phase>prepare-package</phase>
                    <goals>
                        <goal>copy-dependencies</goal>
                    </goals>
                    <configuration>
                        <outputDirectory>${project.build.directory}/classes/lib</outputDirectory>
                        <includeScope>runtime</includeScope>
                    </configuration>
                </execution>
            </executions>
        </plugin>
    </plugins>
</build>

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package example;

import com.aliyun.fc.runtime.Context;
import com.aliyun.fc.runtime.Credentials;
import com.aliyun.fc.runtime.HttpRequestHandler;
import com.aliyun.oss.OSSClient;
import com.aliyun.oss.model.OSSObject;
import org.apache.commons.io.IOUtils;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.*;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;


public class App implements HttpRequestHandler {

    String endpoint = "oss-cn-hangzhou.aliyuncs.com";


    public void handleRequest(HttpServletRequest request, HttpServletResponse response, Context context)
            throws IOException {
        String bucket = request.getParameter("bucket");
        String objectKey= request.getParameter("objectKey");
        Credentials creds = context.getExecutionCredentials();
        OSSClient client = new OSSClient(endpoint, creds.getAccessKeyId(), creds.getAccessKeySecret(), creds.getSecurityToken());
        response.setContentType("application/x-zip-compressed");
        ZipOutputStream zipOutputStream = new ZipOutputStream(response.getOutputStream());
        String [] objectKeys=objectKey.split(",");
        for (String key : objectKeys) {
            OSSObject ossObject = client.getObject(bucket, key);
            ZipEntry zipEntry = new ZipEntry(key);
            zipOutputStream.putNextEntry(zipEntry);
            IOUtils.copy(ossObject.getObjectContent(), zipOutputStream);
            ossObject.close();
        }
        zipOutputStream.closeEntry();
        zipOutputStream.finish();
    }
}

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