QiniuUtils七牛云对象存储java-api

<!--七牛云-对象存储-图片云盘服务-->
<dependency>
	<groupId>com.qiniu</groupId>
	<artifactId>qiniu-java-sdk</artifactId>
	<version>[7.7.0, 7.7.99]</version>
</dependency>

package com.yppah.utils;

import com.alibaba.fastjson.JSON;
import com.qiniu.http.Response;
import com.qiniu.storage.Configuration;
import com.qiniu.storage.Region;
import com.qiniu.storage.UploadManager;
import com.qiniu.storage.model.DefaultPutRet;
import com.qiniu.util.Auth;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
import org.springframework.web.multipart.MultipartFile;

@Component
public class QiniuUtils {

    public static final String url = "xxx";

    @Value("${qiniu.accessKey}") //公钥（配置在.properties/yml文件中）
    private String accessKey;
    @Value("${qiniu.accessSecretKey}") //私钥
    private String accessSecretKey;

    public  boolean upload(MultipartFile file, String fileName){
        //构造一个带指定 Region 对象的配置类
        Configuration cfg = new Configuration(Region.huabei());
        //...其他参数参考类注释
        UploadManager uploadManager = new UploadManager(cfg);
        //...生成上传凭证，然后准备上传
        String bucket = "xxx";
        //默认不指定key的情况下，以文件内容的hash值作为文件名
        try {
            byte[] uploadBytes = file.getBytes();
            Auth auth = Auth.create(accessKey, accessSecretKey);
            String upToken = auth.uploadToken(bucket);
            Response response = uploadManager.put(uploadBytes, fileName, upToken);
            //解析上传成功的结果
            DefaultPutRet putRet = JSON.parseObject(response.bodyString(), DefaultPutRet.class);
            return true;
        } catch (Exception ex) {
            ex.printStackTrace();
        }
        return false;
    }

}

---

package com.yppah.controller;

import com.yppah.utils.QiniuUtils;
import com.yppah.vo.Result;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;

import java.util.UUID;

/**
 * 编写博客时，上传图片（markdown菜单栏、图片按钮、上传）
 */
@RestController
@RequestMapping("upload")
public class UploadController {

    @Autowired
    private QiniuUtils qiniuUtils;

    @PostMapping
    public Result upload(@RequestParam("image") MultipartFile file){
        // 原始文件名称，如test.png
        String originalFilename = file.getOriginalFilename();
        // 唯一的文件名称
        // .substringAfterLast(test.png, ".") ==> png
        String fileName = UUID.randomUUID().toString() + "." + StringUtils.substringAfterLast(originalFilename, ".");
        // 配置七牛云,文件字节数组上传file.getBytes()
        //上传文件到七牛云 云服务器 按量付费 速度快 把图片发放到离用户最近的服务器上,降低 我们自身应用服务器的带宽消耗
        boolean upload = qiniuUtils.upload(file, fileName);
        if (upload){
            return Result.success(QiniuUtils.url + fileName);
        }else {
            return Result.fail(20001, "上传失败");
        }
    }

}