java之七牛云存储照片

骑猪看日落 2023-06-14 14:56 8阅读 0赞

环境搭建基于spring 环境下

## 首先导入依赖 ##

引入qiniuyun.properties 在spring

<dependency>
                <groupId>commons-fileupload</groupId>
                <artifactId>commons-fileupload</artifactId>
                <version>1.3.1</version>
            </dependency>
               
                <dependency>
                    <groupId>com.qiniu</groupId>
                    <artifactId>qiniu-java-sdk</artifactId>
                    <version>[7.2.0, 7.2.99]</version>
                </dependency>
                <dependency>
                    <groupId>com.google.code.gson</groupId>
                    <artifactId>gson</artifactId>
                    <version>2.8.5</version>
                </dependency>

## 配置上传文件 spring-mvc.xml ##

<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
            
            <property name="maxUploadSize">
                <value>5242880</value>
            </property>
        </bean>

### 以及加载qiniuyun.properties文件所需要xml ###

<context:property-placeholder location="classpath:qiniu.properties"></context:property-placeholder>

## qiniu.properties配置文件 ##

qiniu.accessKey=M1lFUDcdSppLe9nKIqSdB4xSu6w9szFt3Dpvz8Gn
    qiniu.secretKey=ftlOxjBYAOe1xX4gWUfIgVwun6QUdj2wbNM6Wx48
    qiniu.bucket=saas1121
    qiniu.rtValue=q13pvmsvo.bkt.clouddn.com

## 工具类 //返回该照片的在云端的唯一id ##

package com.czh.web.qiniuyun;
    
    import com.google.gson.Gson;
    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;
    import org.springframework.beans.factory.annotation.Value;
    import org.springframework.stereotype.Component;
    import org.springframework.web.multipart.MultipartFile;
    
    import java.util.UUID;
    
    
    @Component
    public class FileUploadUtil { 
    
        @Value("${qiniu.accessKey}")
        private String accessKey ;
    
        @Value("${qiniu.secretKey}")
        private String secretKey;
    
        @Value("${qiniu.bucket}")
        private String bucket;
    
        @Value("${qiniu.rtValue}")
        private String rtValue;
    
        /** * 将图片上传到七牛云服务 * 1.更新用户图片信息（用户id=key） * 2.访问图片 * 存储空间分配的临时域名（免费用户有效期一个月）：http://pkbivgfrm.bkt.clouddn.com+上传的文件名 * 3.对于更新之后访问图片，防止缓存 * 更新图片之后：访问的时候，再请求连接添加上时间戳 * */
        public String upload(MultipartFile multipartFile)throws Exception{ 
    	    String img = "";
            try { 
                //取出原始文件名
                String fileName = multipartFile.getOriginalFilename();
                //随机化文件名
                String uuid = UUID.randomUUID().toString().replace("-","").toUpperCase();
                fileName = uuid+"_"+fileName;
                //构造一个带指定Zone对象的配置类
                //指定上传文件服务器地址：
                Configuration cfg = new Configuration(Zone.zone0());
                //...其他参数参考类注释
                //上传管理器
                UploadManager uploadManager = new UploadManager(cfg);
                //身份认证
                Auth auth = Auth.create(accessKey, secretKey);
                //指定覆盖上传
                String upToken = auth.uploadToken(bucket,fileName);
                //上传
                Response response = uploadManager.put(multipartFile.getBytes(), fileName, upToken);
                //解析上传成功的结果
                DefaultPutRet putRet = new Gson().fromJson(response.bodyString(), DefaultPutRet.class);
                img = "http://"+rtValue+"/"+fileName;
            } catch (QiniuException ex) { 
                System.err.println(ex.getMessage());
                Response r = ex.response;
                System.err.println(r.toString());
                try { 
                    System.err.println(r.bodyString());
                } catch (QiniuException ex2) { 
                }
            }
            return img;
        }
    }

## 测试 ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4NDMxMzAz_size_16_color_FFFFFF_t_70]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4NDMxMzAz_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20191120090128278.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4NDMxMzAz,size_16,color_FFFFFF,t_70