springboot实现存储文件（图片）到七牛云

你的名字 2022-04-10 12:56 307阅读 0赞

maven添加包：

<dependency>  
          <groupId>com.qiniu</groupId>  
          <artifactId>qiniu-java-sdk</artifactId>  
          <version>\[7.2.0, 7.2.99\]</version>  
        </dependency>

1、创建QiniuConstant.java

package com.zhonghao.pinfang.core.util.qiniu;

import org.springframework.boot.context.properties.ConfigurationProperties;  
import org.springframework.stereotype.Component;

@Component  
@ConfigurationProperties(prefix = "qiniu")  
public interface QiniuConstant \{

String BUCKET = "你的存储空间名称";  
      
    String PATH = "你绑定的域名（或默认的测试域名）";  
      
    String ACCESSKEY = "你的accesskey";

String SECRETKEY = "你的secretkey";  
\}

2、创建QiniuUtil.java

package com.zhonghao.pinfang.core.util.qiniu;

import java.io.FileInputStream;

import org.slf4j.Logger;  
import org.slf4j.LoggerFactory;  
import org.springframework.stereotype.Component;

import com.alibaba.fastjson.JSON;  
import com.qiniu.common.QiniuException;  
import com.qiniu.common.Zone;  
import com.qiniu.http.Response;  
import com.qiniu.storage.Configuration;  
import com.qiniu.storage.UploadManager;  
import com.qiniu.storage.model.DefaultPutRet;  
import com.qiniu.util.Auth;

@Component  
public class QiniuUtil \{

private static final Logger logger = LoggerFactory.getLogger(QiniuUtil.class);  
      
    /\*\* 将图片上传到七牛云  
     \* @Title: uploadImg  
     \* @author tianshuhao  
     \* @param @param file  
     \* @param @param key 保存在空间中的名字，如果为空会使用文件的hash值为文件名  
     \* @param @return    参数  
     \* @return String    返回类型  
     \* @throws  
     \*/  
    public  static String uploadImg(FileInputStream file, String key) \{  
        //构造一个带指定Zone对象的配置类  
        Configuration cfg = new Configuration(Zone.zone1());  
        //...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 = QiniuConstant.BUCKET;  
        String path = QiniuConstant.PATH;  
        String accessKey = QiniuConstant.ACCESSKEY;  
        String secretKey = QiniuConstant.SECRETKEY;  
          
        //默认不指定key的情况下，以文件内容的hash值作为文件名  
        Auth auth = Auth.create(accessKey, secretKey);  
        String upToken = auth.uploadToken(bucket);  
          
        try \{  
            Response response = uploadManager.put(file, key, upToken, null, null);  
            //解析上传成功的结果  
            DefaultPutRet putRet = JSON.parseObject(response.bodyString(), DefaultPutRet.class);  
//                DefaultPutRet putRet = new Gson().fromJson(response.bodyString(), DefaultPutRet.class);  
//                System.out.println(putRet.key);  
//                System.out.println(putRet.hash);  
            String return\_path = path + "/" + putRet.key;  
            logger.info("保存地址=\{\}",return\_path);  
            return return\_path;  
        \} catch (QiniuException ex) \{  
            Response r = ex.response;  
            System.err.println(r.toString());  
            try \{  
                System.err.println(r.bodyString());  
            \} catch (QiniuException ex2) \{  
                //ignore  
            \}  
        \}  
        return "";  
    \}  
\}

3、文件上传controller

package com.zhonghao.pinfang.modular.system.controller;

import java.io.FileInputStream;  
import java.util.UUID;

import org.springframework.stereotype.Controller;  
import org.springframework.web.bind.annotation.RequestMapping;  
import org.springframework.web.bind.annotation.RequestMethod;  
import org.springframework.web.bind.annotation.RequestPart;  
import org.springframework.web.bind.annotation.ResponseBody;  
import org.springframework.web.multipart.MultipartFile;

import com.zhonghao.pinfang.core.util.qiniu.QiniuUtil;

import cn.stylefeng.roses.core.base.controller.BaseController;

/\*\*  
 \* 文件管理控制器  
 \* @ClassName: FileController  
 \* @author tianshuhao  
 \* @date 2019年1月2日 下午4:15:40  
 \*  
 \*/  
@Controller  
@RequestMapping("/file")  
public class FileController extends BaseController \{

/\*\*  
     \* 上传文件到七牛云  
     \* @throws Exception   
     \*/  
    @RequestMapping(method = RequestMethod.POST, path = "/upload")  
    @ResponseBody  
    public String upload(@RequestPart("file") MultipartFile picture) throws Exception \{  
        FileInputStream inputStream = (FileInputStream) picture.getInputStream();  
        String path = QiniuUtil.uploadImg(inputStream, UUID.randomUUID().toString().substring(0, 8));   
        return path;  
    \}  
\}