七牛云对象存储（如图片存储）

新建存储空间

 

 

 

 

进入对象存储菜单，点击“新建存储空间”，这里需要实名认证，上传身份证正反面之类的，大概一个小时左右就认证成功了，效率真是棒棒哒~

 

 

 

 

这里的存储空间名称要记住，之后在代码里面会用到。

二.代码实现
1.在pom.xml添加七牛云依赖

我的项目使用了maven管理jar包，所以只需直接添加相应依赖即可：

    com.qiniu
    qiniu-java-sdk
    7.2.6

2.添加七牛云图片操作工具类

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;

/**
 * 七牛云工具类
 * Zone.zone0:华东
 * Zone.zone1:华北
 * Zone.zone2:华南
 * Zone.zoneNa0:北美
 * ———http上传，自动识别上传区域——
 * Zone.httpAutoZone
 * ———https上传，自动识别上传区域—— //Zone.httpsAutoZone
 * Configuration cfg = new Configuration(Zone.zone2());其中Configuration中的Zone.zone2()可以改为Zone.zone0()
 */
public class QiniuUtils {
    public  static String accessKey = "NmqvfVvXetScbrEOXgTE2Szg21qdSxp-sTRHaBSB";
    public  static String secretKey = "ft26PJWXnAfs6QksAnHQT85FqDDv2VUXP-AXjEt8";
    //空间名称
    public  static String bucket = "picture-server01";
    //外链域名
    public static String domain = "http://qcsorc5ip.bkt.clouddn.com/";

    public static void upload2Qiniu(String filePath,String fileName){
        //构造一个带指定Zone对象的配置类
        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);
            //解析上传成功的结果
            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
            }
        }
    }

    //上传文件
    public static String upload2Qiniu(byte[] bytes, String fileName){
        //构造一个带指定Zone对象的配置类
        Configuration cfg = new Configuration(Zone.zone2());
        //...其他参数参考类注释
        UploadManager uploadManager = new UploadManager(cfg);

        //默认不指定key的情况下，以文件内容的hash值作为文件名
        String key = fileName;
        Auth auth = Auth.create(accessKey, secretKey);
        String upToken = auth.uploadToken(bucket);
        try {
            Response response = uploadManager.put(bytes, key, upToken);
            //解析上传成功的结果
            DefaultPutRet putRet = new Gson().fromJson(response.bodyString(), DefaultPutRet.class);
            System.out.println(putRet.key);
            System.out.println(putRet.hash);
            //返回文件完整路径
            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 "";
    }

    //删除文件
    public static void deleteFileFromQiniu(String fileName){
        //构造一个带指定Zone对象的配置类
        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) {
            //如果遇到异常，说明删除失败
            System.err.println(ex.code());
            System.err.println(ex.response.toString());
        }
    }
}
此工具类中注意事项：
（1）.获取需要操作的账号的AK和SK

    public  static String accessKey = "NmqvfVvXetScbrEOXgTE2Szg21qdSxp-sTRHaBSB";
    public  static String secretKey = "ft26PJWXnAfs6QksAnHQT85FqDDv2VUXP-AXjEt8";
进入个人中心-密钥管理

 

 （2）.获取要上传的空间

private static final String bucketname = "你的空间名称";

此处图片若不显示，可以点击该篇文章右侧编辑按钮查看对应图片

 

 （3）.获取图片上传URL路径

//外链域名
    public static String domain = "http://qcsorc5ip.bkt.clouddn.com/";
3.后端代码调用

@RequestMapping("/upload")
@ResponseBody
public HashMap upload(@RequestParam("file") MultipartFile imgFile){
    HashMap result = new HashMap();
    String originalFilename = imgFile.getOriginalFilename();//获取图片原始文件名
    int index = originalFilename.lastIndexOf(".");
    String extention = originalFilename.substring(index);//获得图片后缀名  .jpg
    String fileName = UUID.randomUUID().toString() + extention; //进行拼接
    fileName = fileName.replace("-","");
    try {
        //使用工具类将文件上传到七牛云服务器
        String filePath = QiniuUtils.upload2Qiniu(imgFile.getBytes(),fileName);
        result.put("filePath",filePath);
    } catch (IOException e) {
        throw new BusinessException("上传图片失败！",e.getMessage());
    }
    return result;
}
也可以参考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