增加SSE前端推送支持

src/main/java/com/genersoft/iot/vmp/vmanager/SEEController/SEEController.java

@@ -0,0 +1,32 @@
+package com.genersoft.iot.vmp.vmanager.SEEController;
+
+import com.genersoft.iot.vmp.gb28181.event.alarm.AlarmEventListener;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.servlet.mvc.method.annotation.SseEmitter;
+
+/**
+ * @description: SSE推送
+ * @author: lawrencehj
+ * @data: 2021-01-20
+ */
+
+@Controller
+@RequestMapping("/api")
+public class SEEController {
+    @Autowired 
+    AlarmEventListener alarmEventListener;
+    
+   	//设置响应
+    @RequestMapping("/emit")
+    public SseEmitter emit() {
+        SseEmitter sseEmitter = new SseEmitter(0L);
+        try {
+            alarmEventListener.addSseEmitters(sseEmitter);
+        }catch (Exception e){
+            sseEmitter.completeWithError(e);
+        }
+        return sseEmitter;
+    }
+}