詳解Springboot使用阿里云的OSS對(duì)象存儲(chǔ)服務(wù)實(shí)現(xiàn)文件上傳的功能

# 定義的端口號(hào)
server:
  port: 8080

aliyun:
  oss:
    #yourEndpoint填寫B(tài)ucket所在地域?qū)?yīng)的Endpoint，可在創(chuàng)建好的Bucket概況頁(yè)查看。
    endpoint: oss-cn-chengdu.aliyuncs.com		# 以成都為例，Endpoint填寫為https://oss-cn-chengdu.aliyuncs.com
    #阿里云賬號(hào)AccessKey擁有所有API的訪問(wèn)權(quán)限，風(fēng)險(xiǎn)很高。強(qiáng)烈建議您創(chuàng)建并使用RAM用戶進(jìn)行API訪問(wèn)或日常運(yùn)維，請(qǐng)登錄RAM控制臺(tái)創(chuàng)建RAM用戶
    accessKeyId: **********				# 阿里云賬號(hào)AccessKey里所對(duì)應(yīng)的AccessKey ID
    accessKeySecret: **********				# 阿里云賬號(hào)AccessKey里所對(duì)應(yīng)的AccessKey Secret
    bucketName: **********				# OSS對(duì)象存儲(chǔ)空間名

import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;
import java.util.Map;

@Service
public interface AliyunOssService {
    Map<String, Object> upload(MultipartFile file, String fileName);
}

import com.system.demo.service.AliyunOssService;
import com.system.demo.util.FileUploadUtil;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;
import javax.annotation.Resource;
import java.util.HashMap;
import java.util.Map;

@Service("aliyunOssService")
public class AliyunOssServiceImpl implements AliyunOssService {

    @Resource
    private FileUploadUtil fileUploadUtil;

    @Override
    public Map<String, Object> upload(MultipartFile file, String fileName){
        //定義一個(gè)目錄（這里的目錄可根據(jù)自己實(shí)際情況自己拼接定義）
        String path = "a";   //我這里就隨便定義一個(gè)a文件夾
        //拼接，這里將路徑和文件名拼接在了一起
        fileName = path + "/" +fileName;
        Map<String, Object> map =new HashMap<>();
        map.put("code", 200);
        map.put("msg", "查詢成功");
        map.put("data", this.fileUploadUtil.upload(file, fileName));
        return map;
    }

}

import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.model.ObjectMetadata;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
import org.springframework.web.multipart.MultipartFile;
import java.io.IOException;
import java.io.InputStream;

@Component
public class FileUploadUtil {

    @Value("${aliyun.oss.endpoint}")
    private String endpoint;

    @Value("${aliyun.oss.accessKeyId}")
    private String accessKeyId;

    @Value("${aliyun.oss.accessKeySecret}")
    private String accessKeySecret;

    @Value("${aliyun.oss.bucketName}")
    private String bucketName;

    public String upload(MultipartFile file, String fileName){
            // 寫入文件
            try {
                //獲取上傳的輸入流
                InputStream inputStream = file.getInputStream();

                //設(shè)置訪問(wèn)地址是默認(rèn)是預(yù)覽圖片
                ObjectMetadata meta = new ObjectMetadata();
                meta.setContentType("image/jpg");

                // 創(chuàng)建OSSClient實(shí)例
                OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);

                /*
                調(diào)用oss上傳到阿里云對(duì)象存儲(chǔ)oss----Bucket存儲(chǔ)空間
                第一個(gè)參數(shù) bucket名稱
                第二個(gè)參數(shù) 文件名稱
                第三個(gè)參數(shù) 輸入流
                第四個(gè)參數(shù) 文件類型
                 */
                ossClient.putObject(bucketName, fileName, inputStream, meta);

                // 刪除文件。如需刪除文件夾，請(qǐng)將ObjectName設(shè)置為對(duì)應(yīng)的文件夾名稱。如果文件夾非空，則需要將文件夾下的所有object刪除后才能刪除該文件夾。
                //ossClient.deleteObject(bucketName, "a/");

                // 關(guān)閉OSSClient。
                ossClient.shutdown();

                //上傳成功后獲取文件路徑
                String url = "https://" + bucketName + "." + endpoint + "/"+ fileName;
                return url;
            } catch (IOException e) {
                e.printStackTrace();
            }
        return null;
    }
}

import com.system.demo.service.impl.AliyunOssServiceImpl;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;
import javax.annotation.Resource;
import java.util.Map;

@RestController
@RequestMapping("oss")
public class FileUpload {

    @Resource
    private AliyunOssServiceImpl aliyunOssServiceImpl;

    @RequestMapping(value = "fileoss", method = RequestMethod.POST)
    public Map<String, Object> uploadOssFile(MultipartFile file, String fileName){
        return this.aliyunOssServiceImpl.upload(file, fileName);

    }
}