优化快照的存储与显示

src/main/java/com/genersoft/iot/vmp/media/zlm/ZLMHttpHookListener.java

@@ -91,10 +91,9 @@ public class ZLMHttpHookListener {
 	public ResponseEntity<String> onServerKeepalive(@RequestBody JSONObject json){
 
 		if (logger.isDebugEnabled()) {
-			logger.debug("[ ZLM HOOK ]on_server_keepalive API调用，参数：" + json.toString());
+			logger.debug("[ ZLM HOOK ] on_server_keepalive API调用，参数：" + json.toString());
 		}
 		String mediaServerId = json.getString("mediaServerId");
-
 		List<ZLMHttpHookSubscribe.Event> subscribes = this.subscribe.getSubscribes(ZLMHttpHookSubscribe.HookType.on_server_keepalive);
 		if (subscribes != null  && subscribes.size() > 0) {
 			for (ZLMHttpHookSubscribe.Event subscribe : subscribes) {
@@ -164,7 +163,6 @@ public class ZLMHttpHookListener {
 			if (mediaInfo != null) {
 				subscribe.response(mediaInfo, json);
 			}
-
 		}
 		JSONObject ret = new JSONObject();
 		ret.put("code", 0);

src/main/java/com/genersoft/iot/vmp/media/zlm/ZLMRESTfulUtils.java

@@ -151,7 +151,7 @@ public class ZLMRESTfulUtils {
                         }
 
                     }
-                    File snapFile = new File(targetPath + "/" + fileName);
+                    File snapFile = new File(targetPath + File.separator + fileName);
                     FileOutputStream outStream = new FileOutputStream(snapFile);
 
                     outStream.write(Objects.requireNonNull(response.body()).bytes());

src/main/java/com/genersoft/iot/vmp/service/impl/PlayServiceImpl.java

@@ -123,36 +123,19 @@ public class PlayServiceImpl implements IPlayService {
         result.onCompletion(()->{
             // 点播结束时调用截图接口
             // TODO 应该在上流时调用更好，结束也可能是错误结束
-            try {
+            String path =  "snap";
-                String classPath = ResourceUtils.getURL("classpath:").getPath();
+            String fileName =  deviceId + "_" + channelId + ".jpg";
-                // 兼容打包为jar的class路径
+            ResponseEntity responseEntity =  (ResponseEntity)result.getResult();
-                if(classPath.contains("jar")) {
+            if (responseEntity != null && responseEntity.getStatusCode() == HttpStatus.OK) {
-                    classPath = classPath.substring(0, classPath.lastIndexOf("."));
+                WVPResult wvpResult = (WVPResult)responseEntity.getBody();
-                    classPath = classPath.substring(0, classPath.lastIndexOf("/") + 1);
+                if (Objects.requireNonNull(wvpResult).getCode() == 0) {
+                    StreamInfo streamInfoForSuccess = (StreamInfo)wvpResult.getData();
+                    MediaServerItem mediaInfo = mediaServerService.getOne(streamInfoForSuccess.getMediaServerId());
+                    String streamUrl = streamInfoForSuccess.getFmp4();
+                    // 请求截图
+                    logger.info("[请求截图]: " + fileName);
+                    zlmresTfulUtils.getSnap(mediaInfo, streamUrl, 15, 1, path, fileName);
                 }
-                if (classPath.startsWith("file:")) {
-                    classPath = classPath.substring(classPath.indexOf(":") + 1);
-                }
-                String path = classPath + "static/static/snap/";
-                // 兼容Windows系统路径（去除前面的“/”）
-                if(System.getProperty("os.name").contains("indows")) {
-                    path = path.substring(1);
-                }
-                String fileName =  deviceId + "_" + channelId + ".jpg";
-                ResponseEntity responseEntity =  (ResponseEntity)result.getResult();
-                if (responseEntity != null && responseEntity.getStatusCode() == HttpStatus.OK) {
-                    WVPResult wvpResult = (WVPResult)responseEntity.getBody();
-                    if (Objects.requireNonNull(wvpResult).getCode() == 0) {
-                        StreamInfo streamInfoForSuccess = (StreamInfo)wvpResult.getData();
-                        MediaServerItem mediaInfo = mediaServerService.getOne(streamInfoForSuccess.getMediaServerId());
-                        String streamUrl = streamInfoForSuccess.getFmp4();
-                        // 请求截图
-                        logger.info("[请求截图]: " + fileName);
-                        zlmresTfulUtils.getSnap(mediaInfo, streamUrl, 15, 1, path, fileName);
-                    }
-                }
-            } catch (FileNotFoundException e) {
-                e.printStackTrace();
             }
         });
         if (streamInfo != null) {

src/main/java/com/genersoft/iot/vmp/vmanager/gb28181/device/DeviceQuery.java

@@ -21,16 +21,22 @@ import io.swagger.annotations.Api;
 import io.swagger.annotations.ApiImplicitParam;
 import io.swagger.annotations.ApiImplicitParams;
 import io.swagger.annotations.ApiOperation;
+import org.apache.commons.compress.utils.IOUtils;
+import org.apache.http.HttpResponse;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
 import org.springframework.util.StringUtils;
 import org.springframework.web.bind.annotation.*;
 import org.springframework.web.context.request.async.DeferredResult;
 
+import javax.servlet.http.HttpServletResponse;
 import javax.sip.DialogState;
+import java.io.*;
+import java.nio.file.Files;
 import java.util.*;
 
 @Api(tags = "国标设备查询", value = "国标设备查询")
@@ -456,4 +462,17 @@ public class DeviceQuery {
 		wvpResult.setData(dialogStateMap);
 		return wvpResult;
 	}
+
+	@GetMapping("/snap/{deviceId}/{channelId}")
+	@ApiOperation(value = "请求截图", notes = "请求截图")
+	public void getSnap(HttpServletResponse resp, @PathVariable String deviceId, @PathVariable String channelId) {
+
+		try {
+			final InputStream in = Files.newInputStream(new File("snap" + File.separator + deviceId + "_" + channelId + ".jpg").toPath());
+			resp.setContentType(MediaType.IMAGE_PNG_VALUE);
+			IOUtils.copy(in, resp.getOutputStream());
+		} catch (IOException e) {
+			resp.setStatus(HttpServletResponse.SC_NOT_FOUND);
+		}
+	}
 }

web_src/src/components/channelList.vue

@@ -39,21 +39,22 @@
     </el-table-column>
     <el-table-column label="快照" width="80" align="center">
       <template slot-scope="scope">
-        <img style="max-height: 3rem;max-width: 4rem;"
+<!--        <img style="max-height: 3rem;max-width: 4rem;"-->
-             v-if="scope.row.subCount === 0 && scope.row.parental === 0"
+<!--             v-if="scope.row.subCount === 0 && scope.row.parental === 0"-->
-             :id="scope.row.deviceId + '_' + scope.row.channelId"
+<!--             :deviceId="scope.row.deviceId"-->
-             :src="getSnap(scope.row)"
+<!--             :channelId="scope.row.channelId"-->
-             @error="getSnapErrorEvent($event.target.id)"
+<!--             :src="getSnap(scope.row)"-->
-             alt="">
+<!--             @error="getSnapErrorEvent($event.target.deviceId, $event.target.channelId)"-->
-        <!--                    <el-image-->
+<!--             alt="">-->
-        <!--                      :id="'snapImg_' + scope.row.deviceId + '_' + scope.row.channelId"-->
+                  <el-image
-        <!--                      :src="getSnap(scope.row)"-->
+                    :src="getSnap(scope.row)"
-        <!--                      @error="getSnapErrorEvent($event, scope.row)"-->
+                    :preview-src-list="getBigSnap(scope.row)"
-        <!--                      :fit="'contain'">-->
+                    @error="getSnapErrorEvent(scope.row.deviceId, cope.row.channelId)"
-        <!--                      <div slot="error" class="image-slot">-->
+                    :fit="'contain'">
-        <!--                        <i class="el-icon-picture-outline"></i>-->
+                    <div slot="error" class="image-slot">
-        <!--                      </div>-->
+                      <i class="el-icon-picture-outline"></i>
-        <!--                    </el-image>-->
+                    </div>
+                  </el-image>
       </template>
     </el-table-column>
     <el-table-column prop="subCount" label="子节点数">
@@ -227,7 +228,7 @@ export default {
           setTimeout(() => {
 
             let snapId = deviceId + "_" + channelId;
-            that.loadSnap[snapId] = 0;
+            that.loadSnap[deviceId + channelId] = 0;
             that.getSnapErrorEvent(snapId)
           }, 5000)
           that.$refs.devicePlayer.openDialog("media", deviceId, channelId, {
@@ -269,19 +270,24 @@ export default {
       });
     },
     getSnap: function (row) {
-      return '/static/snap/' + row.deviceId + '_' + row.channelId + '.jpg'
+      let url = (process.env.NODE_ENV === 'development'? "debug": "") + '/api/device/query/snap/' + row.deviceId + '/' + row.channelId
+      return url
     },
-    getSnapErrorEvent: function (id) {
+    getBigSnap: function (row) {
+      return [this.getSnap(row)]
+    },
+    getSnapErrorEvent: function (deviceId, channelId) {
 
-      if (typeof (this.loadSnap[id]) != "undefined") {
+      if (typeof (this.loadSnap[deviceId + channelId]) != "undefined") {
-        console.log("下载截图" + this.loadSnap[id])
+        console.log("下载截图" + this.loadSnap[deviceId + channelId])
-        if (this.loadSnap[id] > 5) {
+        if (this.loadSnap[deviceId + channelId] > 5) {
-          delete this.loadSnap[id];
+          delete this.loadSnap[deviceId + channelId];
           return;
         }
         setTimeout(() => {
-          this.loadSnap[id]++
+          let url = (process.env.NODE_ENV === 'development'? "debug": "") + '/api/device/query/snap/' + deviceId + '/' + channelId
-          document.getElementById(id).setAttribute("src", '/static/snap/' + id + '.jpg?' + new Date().getTime())
+          this.loadSnap[deviceId + channelId]++
+          document.getElementById(deviceId + channelId).setAttribute("src", url + '?' + new Date().getTime())
         }, 1000)
 
       }