打印机状态

src/main/java/com/goeing/printserver/main/PrintController.java

@@ -197,6 +197,65 @@ public class PrintController implements PrintService {
         return settings;
     }
     
+    /**
+     * 获取打印机连接状态
+     * 
+     * @return 包含各种连接状态的详细信息
+     */
+    @GetMapping("printers/status")
+    public Map<String, Object> getPrintersStatus() {
+        Map<String, Object> status = new HashMap<>();
+        
+        // Java后端服务状态
+        Map<String, Object> backendStatus = new HashMap<>();
+        backendStatus.put("status", "connected");
+        backendStatus.put("uptime", getUptime());
+        backendStatus.put("timestamp", System.currentTimeMillis());
+        status.put("backend", backendStatus);
+        
+        // WebSocket连接状态
+        Map<String, Object> websocketStatus = new HashMap<>();
+        boolean isWebSocketConnected = printerClient.isConnected();
+        websocketStatus.put("status", isWebSocketConnected ? "connected" : "disconnected");
+        websocketStatus.put("url", config.getWebsocketUrl());
+        websocketStatus.put("printerId", config.getPrinterId());
+        if (isWebSocketConnected) {
+            websocketStatus.put("connectionUrl", printerClient.getCurrentConnectionUrl());
+        }
+        websocketStatus.put("timestamp", System.currentTimeMillis());
+        status.put("websocket", websocketStatus);
+        
+        // 本地打印机状态
+        Map<String, Object> printersStatus = new HashMap<>();
+        javax.print.PrintService[] printServices = PrinterJob.lookupPrintServices();
+        List<Map<String, Object>> printerList = Arrays.stream(printServices)
+                .map(service -> {
+                    Map<String, Object> printer = new HashMap<>();
+                    printer.put("name", service.getName());
+                    printer.put("status", "available"); // 简化处理，假设所有检测到的打印机都可用
+                    printer.put("isDefault", service.getName().equals(config.getDefaultPrinter()));
+                    return printer;
+                })
+                .sorted((a, b) -> ((String) a.get("name")).compareTo((String) b.get("name")))
+                .collect(Collectors.toList());
+        
+        printersStatus.put("count", printerList.size());
+        printersStatus.put("printers", printerList);
+        printersStatus.put("defaultPrinter", config.getDefaultPrinter());
+        printersStatus.put("timestamp", System.currentTimeMillis());
+        status.put("localPrinters", printersStatus);
+        
+        // 打印队列状态
+        Map<String, Object> queueStatus = new HashMap<>();
+        queueStatus.put("queueSize", printQueueService.getQueueSize());
+        queueStatus.put("maxQueueSize", printQueueService.getMaxQueueSize());
+        queueStatus.put("currentTask", printQueueService.getCurrentTaskInfo());
+        queueStatus.put("timestamp", System.currentTimeMillis());
+        status.put("queue", queueStatus);
+        
+        return status;
+    }
+    
     /**
      * 保存系统设置
      *