七牛雲對象存儲（如圖片存儲）

新建存儲空間

 

 

 

 

進入對象存儲菜單，點擊“新建存儲空間”，這里需要實名認證，上傳身份證正反面之類的，大概一個小時左右就認證成功了，效率真是棒棒噠~

 

 

 

 

這里的存儲空間名稱要記住，之后在代碼里面會用到。

二.代碼實現
1.在pom.xml添加七牛雲依賴

我的項目使用了maven管理jar包，所以只需直接添加相應依賴即可：

<!--七牛雲-->
<dependency>
    <groupId>com.qiniu</groupId>
    <artifactId>qiniu-java-sdk</artifactId>
    <version>7.2.6</version>
</dependency>
2.添加七牛雲圖片操作工具類

package gbq.ssm.utils;

import com.google.gson.Gson;
import com.qiniu.common.QiniuException;
import com.qiniu.common.Zone;
import com.qiniu.http.Response;
import com.qiniu.storage.BucketManager;
import com.qiniu.storage.Configuration;
import com.qiniu.storage.UploadManager;
import com.qiniu.storage.model.DefaultPutRet;
import com.qiniu.util.Auth;

/**
 * 七牛雲工具類
 * Zone.zone0:華東
 * Zone.zone1:華北
 * Zone.zone2:華南
 * Zone.zoneNa0:北美
 * ———http上傳，自動識別上傳區域——
 * Zone.httpAutoZone
 * ———https上傳，自動識別上傳區域—— //Zone.httpsAutoZone
 * Configuration cfg = new Configuration(Zone.zone2());其中Configuration中的Zone.zone2()可以改為Zone.zone0()
 */
public class QiniuUtils {
    public  static String accessKey = "NmqvfVvXetScbrEOXgTE2Szg21qdSxp-sTRHaBSB";
    public  static String secretKey = "ft26PJWXnAfs6QksAnHQT85FqDDv2VUXP-AXjEt8";
    //空間名稱
    public  static String bucket = "picture-server01";
    //外鏈域名
    public static String domain = "http://qcsorc5ip.bkt.clouddn.com/";

    public static void upload2Qiniu(String filePath,String fileName){
        //構造一個帶指定Zone對象的配置類
        Configuration cfg = new Configuration(Zone.zone2());
        UploadManager uploadManager = new UploadManager(cfg);
        Auth auth = Auth.create(accessKey, secretKey);
        String upToken = auth.uploadToken(bucket);
        try {
            Response response = uploadManager.put(filePath, fileName, upToken);
            //解析上傳成功的結果
            DefaultPutRet putRet = new Gson().fromJson(response.bodyString(), DefaultPutRet.class);
        } catch (QiniuException ex) {
            Response r = ex.response;
            try {
                System.err.println(r.bodyString());
            } catch (QiniuException ex2) {
                //ignore
            }
        }
    }

    //上傳文件
    public static String upload2Qiniu(byte[] bytes, String fileName){
        //構造一個帶指定Zone對象的配置類
        Configuration cfg = new Configuration(Zone.zone2());
        //...其他參數參考類注釋
        UploadManager uploadManager = new UploadManager(cfg);

        //默認不指定key的情況下，以文件內容的hash值作為文件名
        String key = fileName;
        Auth auth = Auth.create(accessKey, secretKey);
        String upToken = auth.uploadToken(bucket);
        try {
            Response response = uploadManager.put(bytes, key, upToken);
            //解析上傳成功的結果
            DefaultPutRet putRet = new Gson().fromJson(response.bodyString(), DefaultPutRet.class);
            System.out.println(putRet.key);
            System.out.println(putRet.hash);
            //返回文件完整路徑
            return domain+putRet.key;
        } catch (QiniuException ex) {
            Response r = ex.response;
            System.err.println(r.toString());
            try {
                System.err.println(r.bodyString());
                return "";
            } catch (QiniuException ex2) {
                //ignore
            }
        }
        return "";
    }

    //刪除文件
    public static void deleteFileFromQiniu(String fileName){
        //構造一個帶指定Zone對象的配置類
        Configuration cfg = new Configuration(Zone.zone2());
        String key = fileName;
        Auth auth = Auth.create(accessKey, secretKey);
        BucketManager bucketManager = new BucketManager(auth, cfg);
        try {
            bucketManager.delete(bucket, key);
        } catch (QiniuException ex) {
            //如果遇到異常，說明刪除失敗
            System.err.println(ex.code());
            System.err.println(ex.response.toString());
        }
    }
}
此工具類中注意事項：
（1）.獲取需要操作的賬號的AK和SK

    public  static String accessKey = "NmqvfVvXetScbrEOXgTE2Szg21qdSxp-sTRHaBSB";
    public  static String secretKey = "ft26PJWXnAfs6QksAnHQT85FqDDv2VUXP-AXjEt8";
進入個人中心-密鑰管理

 

 （2）.獲取要上傳的空間

private static final String bucketname = "你的空間名稱";

此處圖片若不顯示，可以點擊該篇文章右側編輯按鈕查看對應圖片

 

 （3）.獲取圖片上傳URL路徑

//外鏈域名
    public static String domain = "http://qcsorc5ip.bkt.clouddn.com/";
3.后端代碼調用

@RequestMapping("/upload")
@ResponseBody
public HashMap<String, Object> upload(@RequestParam("file") MultipartFile imgFile){
    HashMap<String,Object> result = new HashMap<String,Object>();
    String originalFilename = imgFile.getOriginalFilename();//獲取圖片原始文件名
    int index = originalFilename.lastIndexOf(".");
    String extention = originalFilename.substring(index);//獲得圖片后綴名  .jpg
    String fileName = UUID.randomUUID().toString() + extention; //進行拼接
    fileName = fileName.replace("-","");
    try {
        //使用工具類將文件上傳到七牛雲服務器
        String filePath = QiniuUtils.upload2Qiniu(imgFile.getBytes(),fileName);
        result.put("filePath",filePath);
    } catch (IOException e) {
        throw new BusinessException("上傳圖片失敗！",e.getMessage());
    }
    return result;
}
也可以參考https://blog.csdn.net/j1231230/article/details/80061834?utm_medium=distribute.pc_relevant_t0.none-task-blog-BlogCommendFromMachineLearnPai2-1.nonecase&depth_1-utm_source=distribute.pc_relevant_t0.none-task-blog-BlogCommendFromMachineLearnPai2-1.nonecase