阿里云OSS的使用
作者:互联网
文章目录
1、第一步:阿里云申请账号:(以下可能有点混搭,因为涉及到钱。。。但是步骤是没错的)
搜索 RAM-> 进入 RAM 访问控制。
创建用户:
授予权限
进入OSS控制台
信息确认无误后,点击确定:
记录地域地址:
oss-cn-beijing.aliyuncs.com
oss-cn-beijing-internal.aliyuncs.com
oss-cn-beijing-internal.aliyuncs.com
获得access-key和secret-key
2.1、maven依赖
com.alibaba.cloud spring-cloud-starter-alicloud-oss
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2.2、增加OSS配置文件
spring: cloud: alicloud: access-key: 上面获得的access-key secret-key: 上面获得的secret-key oos: endpoint: oss-cn-beijing.aliyuncs.com
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2.3、文件上传接口开发
package com.zhz.controller; import cn.hutool.core.date.DateUtil; import com.alibaba.fastjson.JSONObject; import com.aliyun.oss.OSS; import com.aliyun.oss.common.utils.BinaryUtil; import com.aliyun.oss.model.MatchMode; import com.aliyun.oss.model.PolicyConditions; import com.zhz.model.R; import io.swagger.annotations.Api; import io.swagger.annotations.ApiImplicitParam; import io.swagger.annotations.ApiImplicitParams; import io.swagger.annotations.ApiOperation; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.beans.factory.annotation.Value; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.PostMapping; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.bind.annotation.RestController; import org.springframework.web.multipart.MultipartFile; import java.io.IOException; import java.util.Date; import java.util.LinkedHashMap; import java.util.Map; /** * 完成文件上传的功能 */ @RestController @Api(tags = "文件上传的控制器") public class FileController { // spring-cloud-alibaba-oss 会自动的注入该对象,爆红也不用理 @Autowired private OSS ossClient; @Value("${spring.cloud.alicloud.access-key}") private String accessId; @Value("${oss.bucket.name:coin-exchange-imgs1}") private String bucketName; @Value("${spring.cloud.alicloud.oss.endpoint}") private String endPoint; @Value("${oss.callback.url:http://coinoss.free.idcfengye.com}")//nginx负载均衡地址 private String ossCallbackUrl; // @ApiOperation(value = "上传文件") @PostMapping("/image/AliYunImgUpload") @ApiImplicitParams({ @ApiImplicitParam(name = "file", value = "你要上传的文件") }) public RfileUpload(@RequestParam("file") MultipartFile file) throws IOException { /** * 1 bucketName * 2 文件的名称 日期 +原始的文件名(uuid)来做 * 3 文件的输入流 */ // 2020-10-10->2020/10/10/xxx.jpg String fileName = DateUtil.today().replaceAll("-", "/") + "/" + file.getOriginalFilename(); ossClient.putObject(bucketName, fileName, file.getInputStream()); // https://coin-exchange-imgs.oss-cn-beijing.aliyuncs.com/2020/10/10/xxx.jpg // https://coin-exchange-imgs.oss-cn-beijing.aliyuncs.com/2020/10/10/banner9.jpg return R.ok("https://" + bucketName + "." + endPoint + "/" + fileName); //能使用浏览器访问到文件路径http://xxx.com/路径 } @GetMapping("/image/pre/upload")//自己的地址 @ApiOperation(value = "文件的上传获取票据") public R<Map> preUploadPolicy() { String dir = DateUtil.today().replaceAll("-", "/") + "/"; Mappolicy = getPolicy(30L, 3 * 1024 * 1024L, dir); return R.ok(policy) ; } private MapgetPolicy(long expireTime, long maxFileSize, String dir) { try { long expireEndTime = System.currentTimeMillis() + expireTime * 1000; Date expiration = new Date(expireEndTime); // PostObject请求最大可支持的文件大小为5 GB,即CONTENT_LENGTH_RANGE为5*1024*1024*1024。 PolicyConditions policyConds = new PolicyConditions(); // 设置上传文件的最大的体积 policyConds.addConditionItem(PolicyConditions.COND_CONTENT_LENGTH_RANGE, 0, maxFileSize); // 设置上传文件上传到那个文件夹 policyConds.addConditionItem(MatchMode.StartWith, PolicyConditions.COND_KEY, dir); String postPolicy = ossClient.generatePostPolicy(expiration, policyConds); // 设置该Policy(票据) 有效时间 byte[] binaryData = postPolicy.getBytes("utf-8"); String encodedPolicy = BinaryUtil.toBase64String(binaryData); String postSignature = ossClient.calculatePostSignature(postPolicy); // 返回值 MaprespMap = new LinkedHashMap(); respMap.put("accessid", accessId); // 设置我们之前的accessKey respMap.put("policy", encodedPolicy); respMap.put("signature", postSignature); respMap.put("dir", dir); respMap.put("host", "https://" + bucketName +"."+ endPoint); // 设置 上传的Host https://bulkname.endpoint respMap.put("expire", String.valueOf(expireEndTime / 1000)); // respMap.put("expire", formatISO8601Date(expiration)); JSONObject jasonCallback = new JSONObject(); jasonCallback.put("callbackUrl", ossCallbackUrl); // 当我们的前端把文件上传到oss 服务器成功后 // ,oss 服务器会想回调的callbackUrl(公网) 发一个post请求来告诉后端服务器用户上传文件的情况 jasonCallback.put("callbackBody", "filename=${object}&size=${size}&mimeType=${mimeType}&height=${imageInfo.height}&width=${imageInfo.width}"); jasonCallback.put("callbackBodyType", "application/x-www-form-urlencoded"); String base64CallbackBody = BinaryUtil.toBase64String(jasonCallback.toString().getBytes()); respMap.put("callback", base64CallbackBody); return respMap; } catch (Exception e) { e.printStackTrace(); } return null; } }
标签:String,OSS,respMap,阿里,使用,put,import,com,oss 来源: https://blog.51cto.com/u_15254813/2871061