基于Java写minio客户端实现上传下载文件
作者：帅过驴的袋鼠
这篇文章主要介绍了基于Java写minio客户端实现上传下载文件,文中通过示例代码介绍的非常详细，对大家的学习或者工作具有一定的参考学习价值,需要的朋友可以参考下
前言：
确保已经安装了minio的服务端
代码：
pom.xml
<dependency> <groupId>io.minio</groupId> <artifactId>minio</artifactId> <version>7.0.2</version> </dependency>
application.yml
server: port:90 minio: url: http://10.69.94.140:9000 accessKey: 账号 secretKey: 密码 defaultFolder: /
MinioProperties.java
@ConfigurationProperties("minio")
@Data
public class MinioProperties {
private String url;
private String accessKey;
private String secretKey;
private String defaultFolder;
}
SpringConfig.java
@Configuration
@EnableConfigurationProperties(MinioProperties.class)
@Slf4j
public class SpringConfig {
@Autowired
private MinioProperties minioProperties;
@Bean
public MinioClient minioClient() {
try {
return new MinioClient(minioProperties.getUrl(), minioProperties.getAccessKey(), minioProperties.getSecretKey());
} catch (Exception e) {
log.error(e.toString());
}
return null;
}
}
ImagesController.java
@RestController
@RequestMapping("/image")
@Slf4j
@CrossOrigin(origins = "*")
public class ImageController {
@Autowired
private FileService fileService;
/*******
* Get image file, this method return an image type file which can be displayed in browser.
* @param bucketName, system, each system should belong a special bucket.
* @param category, a system may contain multiple category
* @param fileName
*/
@GetMapping(value = "/get/{bucketName}/{category}/{objectName}/{fileName}", produces = MediaType.IMAGE_JPEG_VALUE)
public byte[] get(@PathVariable("bucketName") String bucketName, @PathVariable("category") String category,
@PathVariable("objectName") String objectName,
@PathVariable("fileName") String fileName) throws Exception {
return fileService.getFile(bucketName, category, objectName);
}
@GetMapping("/download/{bucketName}/{category}/{objectName}/{fileName}")
public void download(@PathVariable("bucketName") String bucketName, @PathVariable("category") String category,
@PathVariable("objectName") String objectName,
@PathVariable("fileName") String fileName, HttpServletResponse response) throws Exception {
byte[] buffer = fileService.getFile(bucketName, category, objectName);
response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
response.setHeader("Content-disposition", "attachment; filename=\"" + fileName + "\"");
response.getOutputStream().write(buffer);
response.flushBuffer();
response.getOutputStream().close();
}
@PostMapping("/upload/{bucketName}/{category}")
public String upload(@PathVariable("bucketName") String bucketName, @PathVariable("category") String category,
@RequestParam("file") MultipartFile file) throws Exception {
String objectName = UUID.randomUUID().toString();
fileService.storeFile(bucketName, category, objectName, file.getBytes());
return String.format("image/get/%s/%s/%s/%s", bucketName, category, objectName, file.getOriginalFilename());
}
}
FilesController.java
@RestController
@RequestMapping("/files")
@Slf4j
@CrossOrigin(origins = "*")
public class FilesController {
@Autowired
private FileService fileService;
@GetMapping("/download/{bucketName}/{category}/{objectName}/{fileName}")
public void download(@PathVariable("bucketName") String bucketName, @PathVariable("category") String category,
@PathVariable("objectName") String objectName, @PathVariable("fileName") String fileName, HttpServletResponse response) throws Exception {
byte[] buffer = fileService.getFile(bucketName, category, objectName);
response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
response.setHeader("Content-disposition", "attachment; filename=\"" + fileName + "\"");
response.getOutputStream().write(buffer);
response.flushBuffer();
response.getOutputStream().close();
}
@PostMapping("/upload/{bucketName}/{category}")
public String upload(@PathVariable("bucketName") String bucketName, @PathVariable("category") String category,
@RequestParam("file") MultipartFile file) throws Exception {
String objectName = UUID.randomUUID().toString();
fileService.storeFile(bucketName, category, objectName, file.getBytes());
return String.format("files/download/%s/%s/%s/%s", bucketName, category, objectName, file.getOriginalFilename());
}
}
upload.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Upload file test</title>
</head>
<body>
<form action="http://localhost:90/image/upload/zeng/test" method="post" enctype="multipart/form-data">
<input type="file" name="file" />
<input type="submit" value="Submit">
</form>
</body>
</html>
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。