package tech.aiflowy.ai.controller;
|
|
import cn.dev33.satoken.annotation.SaIgnore;
|
import org.springframework.beans.factory.annotation.Value;
|
import org.springframework.core.io.ClassPathResource;
|
import org.springframework.http.HttpHeaders;
|
import org.springframework.http.HttpStatus;
|
import org.springframework.http.ResponseEntity;
|
import org.springframework.web.bind.annotation.GetMapping;
|
import org.springframework.web.bind.annotation.RestController;
|
import org.springframework.web.servlet.HandlerMapping;
|
import tech.aiflowy.common.util.StringUtil;
|
|
import javax.servlet.http.HttpServletRequest;
|
import java.io.File;
|
import java.io.IOException;
|
import java.nio.file.Files;
|
|
@RestController
|
public class FilePreviewController {
|
|
// 定义图片存储的基础路径
|
@Value("${aiflowy.storage.local.root}")
|
private String fileUploadPath;
|
|
@SaIgnore
|
@GetMapping("/api/images/**")
|
public ResponseEntity<byte[]> getImage(HttpServletRequest request) throws IOException {
|
// 获取完整的路径
|
String fullPath = (String) request.getAttribute(HandlerMapping.PATH_WITHIN_HANDLER_MAPPING_ATTRIBUTE);
|
String basePath = "/api/images/";
|
String filePath = fullPath.substring(basePath.length()-1);
|
String imagePath = getRootPath() + filePath;
|
File imageFile = new File(imagePath);
|
|
if (!imageFile.exists()) {
|
return new ResponseEntity<>(HttpStatus.NOT_FOUND);
|
}
|
|
// 读取文件内容
|
byte[] fileContent = Files.readAllBytes(imageFile.toPath());
|
|
// 返回文件内容
|
return ResponseEntity.ok()
|
.header(HttpHeaders.CONTENT_TYPE, getContentType(imageFile))
|
.body(fileContent);
|
}
|
|
// 根据文件扩展名获取 MIME 类型
|
private String getContentType(File file) {
|
String fileName = file.getName().toLowerCase();
|
if (fileName.endsWith(".jpg") || fileName.endsWith(".jpeg")) {
|
return "image/jpeg";
|
} else if (fileName.endsWith(".png")) {
|
return "image/png";
|
} else if (fileName.endsWith(".gif")) {
|
return "image/gif";
|
}
|
return "application/octet-stream"; // 默认类型
|
}
|
|
public String getRootPath() {
|
if (StringUtil.hasText(this.fileUploadPath)) {
|
return this.fileUploadPath;
|
}
|
ClassPathResource fileResource = new ClassPathResource("/");
|
try {
|
return new File(fileResource.getFile(), "/public").getAbsolutePath();
|
} catch (IOException e) {
|
throw new RuntimeException(e);
|
}
|
}
|
}
|