package com.wei.common.web.api;

import com.aliyun.oss.OSSClient;
import com.aliyun.oss.model.OSSObject;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletResponse;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.net.URLEncoder;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

import static org.springframework.util.ObjectUtils.isEmpty;

@Api(description = "檔案下載-相關介面")
@Slf4j
@RestController
@RequestMapping("/test/filedownload")
public class Test {

    @Autowired
    private OSSClient ossClient;

    /**
     * 參考：阿里雲(oss)官網api地址
     * https://help.aliyun.com/product/31815.html
     */

    @ApiOperation(value = "檔案壓縮下載", httpMethod = "GET", notes = "檔案壓縮下載")
    @RequestMapping(value = "zipDownload")
    public void zipDownload(HttpServletResponse response){
        // 設定強制下載不開啟
        response.setContentType("application/force-download");
        ZipOutputStream zos = null;
        BufferedInputStream bis = null;
        BufferedOutputStream out = null;
        byte[] buffer = new byte[100 * 1024];
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        try {
            String key = "376058d3dfc338c555cf308f8a2deb52.jpg*圖片測試.jpg,d41d8cd98f00b204e9800998ecf8427e.docx*excel測試.xlsx,";
            if(!isEmpty(key)){
                String zipName = "壓縮包名稱.zip";
                // 用於將資料壓縮成Zip檔案格式
                zos = new ZipOutputStream(baos);
                String[] keylist = key.split(",");
                for (String ossfile : keylist) {
                    String type=ossfile.substring(0, ossfile.indexOf("*"));
                    String name=ossfile.substring(type.length()+1, ossfile.length());
                    //bucketName需改為自己的bucketName
                    OSSObject ossObject = ossClient.getObject("bucketName", type);
                    bis = new BufferedInputStream(ossObject.getObjectContent());
                    zos.putNextEntry(new ZipEntry(name));
                    int i = bis.read(buffer);
                    // 向壓縮檔案中輸出資料
                    while(i != -1){
                        zos.write(buffer, 0, i);
                        i = bis.read(buffer);
                    }
                    zos.closeEntry();
                }
                // 設定檔名
                response.addHeader("Content-Disposition", "attachment;fileName=" + URLEncoder.encode(zipName , "UTF-8"));
                out=new BufferedOutputStream(response.getOutputStream());
                out.write(baos.toByteArray());
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            //關閉流
            if(zos != null){
                try {
                    zos.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }if(bis != null){
                try {
                    bis.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            if(out != null){
                try {
                    out.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }
}
 

pom參考：

<dependency>
    <groupId>com.aliyun.oss</groupId>
    <artifactId>aliyun-sdk-oss</artifactId>
    <version>3.4.2</version>
</dependency>

//工作隨記，如若有誤，感謝指正。