阿里云OOS对象存储

刺骨的言语ヽ痛彻心扉 2023-02-10 04:00 52阅读 0赞

## 1. 开通阿里云对象存储 ##

1.  先进入阿里云对象存储控制台
2.  创建一个Buket
3.  AccessKey 开通 （使用子用户的AccessKey）  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Z5ajEzOTI1NDc1OTU3_size_16_color_FFFFFF_t_70]  
    创建用户  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Z5ajEzOTI1NDc1OTU3_size_16_color_FFFFFF_t_70 1]  
    添加权限  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Z5ajEzOTI1NDc1OTU3_size_16_color_FFFFFF_t_70 2]

获取到 AccessKey ID 和 AccessKey Secret  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Z5ajEzOTI1NDc1OTU3_size_16_color_FFFFFF_t_70 3]

## 2. 上传服务 ##

获取pom依赖  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Z5ajEzOTI1NDc1OTU3_size_16_color_FFFFFF_t_70 4]

<dependency>
    	  <groupId>com.alibaba.cloud</groupId>
          <artifactId>spring-cloud-starter-alicloud-oss</artifactId>
      </dependency>

yml 配置

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Z5ajEzOTI1NDc1OTU3_size_16_color_FFFFFF_t_70 5]

### 服务端上传 ###

代码示例一： （后台上传）

@SpringBootTest
    class FyjmallThirdPartyApplicationTests { 
    
        @Autowired
        private OSS oss;
        @Test
        void contextLoads() throws FileNotFoundException { 
    
    
    // 上传内容到指定的存储空间（bucketName）并保存为指定的文件名称（objectName）。
            String content = "Hello OSS";
            InputStream inputStream = new FileInputStream("E:\\0d40c24b264aa511.jpg");
            oss.putObject("fyjmall", "0d40c24b264aa511.jpg", inputStream);
    
    // 关闭OSSClient。
            oss.shutdown();
            System.out.println("上传完成");
        }
    }

### 服务端生成签名，给前台直接上传 ###

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Z5ajEzOTI1NDc1OTU3_size_16_color_FFFFFF_t_70 6]

代码示例:

yml配置  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Z5ajEzOTI1NDc1OTU3_size_16_color_FFFFFF_t_70 7]

@RestController
    public class OssController { 
    
        @Autowired
        OSS ossClient;
    
        @Value("${spring.cloud.alicloud.oss.endpoint}")
        private String endpoint;
        @Value("${spring.cloud.alicloud.oss.bucket}")
        private String bucket;
    
        @Value("${spring.cloud.alicloud.access-key}")
        private String accessId;
    
    
    
        @RequestMapping("/oss/policy")
        public R policy() { 
            String host = "https://" + bucket + "." + endpoint; // host的格式为 bucketname.endpoint
            // callbackUrl为 上传回调服务器的URL，请将下面的IP和Port配置为您自己的真实信息。
    // String callbackUrl = "http://88.88.88.88:8888";
            String format = new SimpleDateFormat("yyyy-MM-dd").format(new Date());
            String dir = format + "/"; // 用户上传文件时指定的前缀。
    
            Map<String, String> respMap = null;
            try { 
                long expireTime = 30;
                long expireEndTime = System.currentTimeMillis() + expireTime * 1000;
                Date expiration = new Date(expireEndTime);
                PolicyConditions policyConds = new PolicyConditions();
                policyConds.addConditionItem(PolicyConditions.COND_CONTENT_LENGTH_RANGE, 0, 1048576000);
                policyConds.addConditionItem(MatchMode.StartWith, PolicyConditions.COND_KEY, dir);
    
                String postPolicy = ossClient.generatePostPolicy(expiration, policyConds);
                byte[] binaryData = postPolicy.getBytes("utf-8");
                String encodedPolicy = BinaryUtil.toBase64String(binaryData);
                String postSignature = ossClient.calculatePostSignature(postPolicy);
    
                respMap = new LinkedHashMap<String, String>();
                respMap.put("accessid", accessId);
                respMap.put("policy", encodedPolicy);
                respMap.put("signature", postSignature);
                respMap.put("dir", dir);
                respMap.put("host", host);
                respMap.put("expire", String.valueOf(expireEndTime / 1000));
                // respMap.put("expire", formatISO8601Date(expiration));
    
    
            } catch (Exception e) { 
                // Assert.fail(e.getMessage());
                System.out.println(e.getMessage());
            }
    
            return R.ok().put("data",respMap);
        }
    }

## 允许跨域设置 ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Z5ajEzOTI1NDc1OTU3_size_16_color_FFFFFF_t_70 8]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Z5ajEzOTI1NDc1OTU3_size_16_color_FFFFFF_t_70 9]

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