关于七牛云的注册以及申请存储空间这里就不详细介绍了，网上的教程很多而且注册以及申请存储空间也是比较简单的。直接进入正题，说一下整合的事情。
配置文件application.yml
qiniu:
accessKey: xxxx-xxxx-xxxx
secretKey: xxxx_xxxx-xxxx
bucket: rongdi
path: http://up-z1.qiniup.com # 每个地区的地址都不一样
上面参数对应七牛云中的配置如下图
创建上传文件以及图片的配置类
@Data
@Component
@ConfigurationProperties(prefix = "qiniu")
public class QiNiuYunConfig {
@Value("${accessKey}")
private String accessKey;
@Value("${secretKey}")
private String secretKey;
@Value("${bucket}")
private String bucket;
@Value("${path}")
private String path;
public String uploadImgToQiNiu(FileInputStream file, String filename) {
// 构造一个带指定Zone对象的配置类，注意后面的zone各个地区不一样的
Configuration cfg = new Configuration(Zone.zone1());
// 其他参数参考类注释
UploadManager uploadManager = new UploadManager(cfg);
// 生成密钥
Auth auth = Auth.create(accessKey, secretKey);
try {
String upToken = auth.uploadToken(bucket);
try {
Response response = uploadManager.put(file, filename, upToken, null, null);
// 解析上传成功的结果
DefaultPutRet putRet = new Gson().fromJson(response.bodyString(), DefaultPutRet.class);
// 这个returnPath是获得到的外链地址,通过这个地址可以直接打开图片
String returnPath = getPath() + "/" + putRet.key;
return returnPath;
} catch (QiniuException ex) {
Response r = ex.response;
System.err.println(r.toString());
try {
System.err.println(r.bodyString());
} catch (QiniuException ex2) {
//ignore
}
}
} catch (Exception e) {
e.printStackTrace();
}
return "";
}
}
Controller层
@Controller
public class QiNiuYunController {
@Autowired
private QiNiuYunConfig qiNiuYunConfig;
@GetMapping("/upload")
public String upload(){
return "upload";
}
@PostMapping("/qiniu")
public String qiNiuYunUpload(@RequestParam("file")MultipartFile file,
Model model) throws IOException {
String filename = file.getOriginalFilename();
FileInputStream inputStream = (FileInputStream) file.getInputStream();
//为文件重命名：uuid+filename
filename = UUID.randomUUID()+ filename;
String link = qiNiuYunConfig.uploadImgToQiNiu(inputStream, filename);
model.addAttribute("link", link);
return "upload";
}
}
HTML代码
<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8">
<title>上传文件</title>
</head>
<body>
<form action="/qiniu" method="post" enctype="multipart/form-data">
<label>上传图片</label>
<input type="file" name="file"/>
<input type="submit" value="上传"/>
<p>回显图片:</p>
<img th:src="${link}"/>
</form>
</body>
</html>
效果如下
