对接小程序二维码

nxhs-service/src/main/java/cc/yunxi/controller/QRCodeController.java

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+package cc.yunxi.controller;
+
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiOperation;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.core.io.ClassPathResource;
+import org.springframework.core.io.Resource;
+import org.springframework.http.ResponseEntity;
+import org.springframework.util.StringUtils;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+@ApiModel("机柜扫码登录")
+@Slf4j
+@RestController("/qrcode")
+public class QRCodeController {
+
+    private static final Map<String, String> FILE_CONTEXT = new ConcurrentHashMap<>();
+
+//    @ApiOperation("二维码校验文件")
+//    @GetMapping("/qrcode/{filename}")
+//    public void getQRCode(HttpServletResponse response, @PathVariable String filename) throws IOException {
+//        Resource resource = new ClassPathResource("static/" + filename);
+//
+//        if (resource.exists() || resource.isReadable()) {
+//            // 设置响应头
+//            String contentType = null;
+//            try (InputStream inputStream = resource.getInputStream()) {
+//                contentType = "application/octet-stream";
+//            } catch (IOException e) {
+//                // 如果无法获取输入流，则回退到默认内容类型
+//                contentType = "application/octet-stream";
+//            }
+//
+//            response.setContentType(contentType);
+//            response.setHeader(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=\"" + resource.getFilename() + "\"");
+//
+//            try (InputStream inputStream = resource.getInputStream();
+//                 OutputStream outputStream = response.getOutputStream()) {
+//
+//                byte[] buffer = new byte[4096];
+//                int bytesRead = -1;
+//                while ((bytesRead = inputStream.read(buffer)) != -1) {
+//                    outputStream.write(buffer, 0, bytesRead);
+//                }
+//                outputStream.flush();
+//            }
+//        } else {
+//            response.setStatus(HttpServletResponse.SC_NOT_FOUND);
+//        }
+//    }
+
+    @ApiOperation("二维码校验文件")
+    @GetMapping("/qrcode/{filename:.+}")
+    public ResponseEntity<String> getFile(@PathVariable String filename) {
+        if (StringUtils.hasText(filename)) {
+            String context = FILE_CONTEXT.get(filename);
+            if (StringUtils.hasText(context)) return ResponseEntity.ok(context);
+        }
+        Resource resource = new ClassPathResource("static/" + filename);
+        if (resource.exists() || resource.isReadable()) {
+
+            try {
+                Path path = resource.getFile().toPath();
+                String content = new String(Files.readAllBytes(path), StandardCharsets.UTF_8);
+                FILE_CONTEXT.put(filename, content);
+                return ResponseEntity.ok(content);
+            } catch (IOException e) {
+                e.printStackTrace();
+                log.error("读取校验文件失败: {}", e.getMessage());
+            }
+        }
+        return ResponseEntity.notFound().build();
+    }
+
+
+}

nxhs-service/src/main/resources/static/7Hmf2EbbCc.txt

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+175babf4957dd6090b5b36b78cd51c78