Spring Boot 使用七牛云存储图片并且使用自定义域名访问
提示:文章写完后,目录可以自动生成,如何生成可参考右边的帮助文档文章目录前言一、pandas是什么?二、使用步骤1.引入库2.读入数据总结前言提示:这里可以添加本文要记录的大概内容:例如:随着人工智能的不断发展,机器学习这门技术也越来越重要,很多人都开启了学习机器学习,本文就介绍了机器学习的基础内容。提示:以下是本篇文章正文内容,下面案例可供参考一、pandas是什么?示例:pandas 是基于N
文章目录
前言
七牛云为每个用户提供了10G免费存储空间。个人使用还是很香的。本文将记录如何上传文件。
一、环境准备
1. 账号准备
注册七牛云账号并实名
https://s.qiniu.com/b2qUry
创建对象存储空间
https://portal.qiniu.com/kodo/bucket
获取密钥
https://portal.qiniu.com/user/key
注意保管好自己的密钥
2. 创建spring boot 项目
pom.xml
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.qiniu</groupId>
<artifactId>qiniu-java-sdk</artifactId>
<!-- 这里的version指定了一个版本范围,每次更新pom.xml的时候会尝试去下载7.7.x版本中的最新版本,你可以手动指定一个固定的版本。-->
<version>[7.7.0, 7.10.99]</version>
</dependency>
<dependency>
<groupId>com.squareup.okhttp3</groupId>
<artifactId>okhttp</artifactId>
<version>3.14.2</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>com.qiniu</groupId>
<artifactId>happy-dns-java</artifactId>
<version>0.1.6</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.71</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.13.1</version>
<scope>test</scope>
</dependency>
</dependencies>
注意:从 7.2.24 开始,okhttp3 升级到 3.14.2,其要求 java 1.8 及以上。
若一定 java 1.7 ,请手动指定 okhttp3 依赖 3.12,要求 3.12.3 及以上
application.yml
logging:
level:
root: warn
com.king: info
org.springframework: error
Qiniu:
AccessKey: xxxxxxxxxxx上述步骤获取密钥 你的AccessKey
SecretKey: xxxxxxxxxx你的SecretKey xxxxxxxxxxxxxxxx
spring:
servlet:
multipart:
max-file-size: 10MB
max-request-size: 10MB
二、上传本地文件测试
QiniuServiceImpl.java
代码如下:
package com.king.oss.service;
import com.alibaba.fastjson.JSON;
import com.qiniu.common.QiniuException;
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 com.qiniu.util.IOUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.UUID;
/**
* @author: 12613
* @project: mooc
* @pcakage: com.king.mooc.service.impl.QiniuServiceImpl
* @date: 2022年05月02日 00:38
* @description:
*/
@Service
public class QiniuServiceImpl {
@Value(value = "${Qiniu.AccessKey}")
private String accessKey;
@Value(value = "${Qiniu.SecretKey}")
private String secretKey;
private final Logger logger = LoggerFactory.getLogger(this.getClass());
//测试文件上传
public void testUpload() {
//构造一个带指定 Region 对象的配置类,指定存储区域,和存储空间选择的区域一致
//
Configuration cfg = new Configuration(Region.huanan());
//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 = "hnking";
//默认不指定key的情况下,以文件内容的hash值作为文件名
String key = UUID.randomUUID() + ".png";
FileInputStream fileInputStream = null;
try {
String filePath = "C:\\Users\\12613\\Pictures\\20201029195525.png";
fileInputStream = new FileInputStream(new File(filePath));
//得到本地文件的字节数组
byte[] bytes = IOUtils.toByteArray(fileInputStream);
//认证
Auth auth = Auth.create(accessKey, secretKey);
//认证通过后得到token(令牌)
String upToken = auth.uploadToken(bucket);
try {
//上传文件,参数:字节数组,key,token令牌
//key: 建议我们自已生成一个不重复的名称
Response response = uploadManager.put(bytes, key, upToken);
//解析上传成功的结果
DefaultPutRet putRet = JSON.parseObject(response.bodyString(),
DefaultPutRet.class);
logger.info("上传成功{}", JSON.toJSONString(putRet));
} catch (QiniuException ex) {
Response r = ex.response;
System.err.println(r.toString());
try {
System.err.println(r.bodyString());
} catch (QiniuException ex2) {
logger.error("上传失败{}",ex2.getMessage());
}
}
} catch (IOException ex) {
logger.error("上传文件失败", ex);
}
}
}
测试代码
QiniuServiceImplTest.java
package com.king.oss.service;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
@SpringBootTest
@RunWith(SpringJUnit4ClassRunner.class)
public class QiniuServiceImplTest {
@Autowired
private QiniuServiceImpl qiniuService;
@Test
public void uploadFile() {
qiniuService.testUpload();
}
}
运行结果
使用七牛云提供的测试域名
rb3lparfv.hn-bkt.clouddn.com/834c9118-ee9e-4d31-a247-5998d9ddbeed.png
即可访问图片
三、从浏览器上传文件
这里先参考之前的文章:SpringBoot 使用表单或者vue实现文件上传
修改后的 FileController.java
package com.king.oss.controller;
import com.king.oss.service.QiniuServiceImpl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.ObjectUtils;
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 javax.servlet.http.HttpServletRequest;
import java.io.File;
import java.io.IOException;
import java.util.Collections;
import java.util.List;
/**
* @program: springboot
* @description:
* @author: King
* @create: 2022-01-30 23:09
*/
@RestController
@RequestMapping("/file")
public class FileController {
//默认上传到的路径
@Autowired
QiniuServiceImpl qiniuService;
@PostMapping("/upload")
public String upload(@RequestParam("file") MultipartFile uploadFile, HttpServletRequest req) {
if (!uploadFile.isEmpty()) {
return qiniuService.saveFile(uploadFile);
}
return "上传失败!";
}
@PostMapping("/uploads")
public List<String> upload(@RequestParam("files") MultipartFile[] uploadFiles, HttpServletRequest req) {
if (!ObjectUtils.isEmpty(uploadFiles) && uploadFiles.length > 0) {
return qiniuService.saveFile(uploadFiles);
}
return Collections.singletonList("上传失败!");
}
}
修改后的QiniuServiceImpl.java
package com.king.oss.service;
import com.alibaba.fastjson.JSON;
import com.qiniu.common.QiniuException;
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 com.qiniu.util.IOUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.UUID;
/**
* @author: 12613
* @project: mooc
* @pcakage: com.king.mooc.service.impl.QiniuServiceImpl
* @date: 2022年05月02日 00:38
* @description:
*/
@Service
public class QiniuServiceImpl {
@Value(value = "${Qiniu.AccessKey}")
private String accessKey;
@Value(value = "${Qiniu.SecretKey}")
private String secretKey;
private final Logger logger = LoggerFactory.getLogger(this.getClass());
public String saveFile(MultipartFile uploadFile) {
Configuration cfg = new Configuration(Region.huanan());
UploadManager uploadManager = new UploadManager(cfg);
String bucket = "hnking";
String fileName = uploadFile.getOriginalFilename();
String key = UUID.randomUUID() + fileName.substring(fileName.lastIndexOf("."));
Auth auth = Auth.create(accessKey, secretKey);
String upToken = auth.uploadToken(bucket);
try {
Response response = uploadManager.put(uploadFile.getBytes(), key, upToken);
DefaultPutRet putRet = JSON.parseObject(response.bodyString(), DefaultPutRet.class);
return "http://rb3lparfv.hn-bkt.clouddn.com/" + putRet.key;
} catch (QiniuException e) {
logger.error("上传文件失败", e);
logger.error(JSON.toJSONString(e.response));
} catch (IOException e) {
logger.error("上传文件失败", e);
}
return null;
}
public List<String> saveFile(MultipartFile[] uploadFiles) {
List<String> list = new ArrayList<>();
for (MultipartFile uploadFile : uploadFiles) {
list.add(saveFile(uploadFile));
}
return list;
}
}
http://rb3lparfv.hn-bkt.clouddn.com/ff63da0f-bbe2-4f96-9edd-531ec98ffdd1.png
ok 完美运行
四、源码地址
Github https://github.com/KingJin-web/springboot
Gitee https://gitee.com//KingJin-web/springboot
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