....

src/main/java/cn/com/qmth/examcloud/web/actuator/ApiStatusEndpoint.java

@@ -6,6 +6,7 @@ import java.util.Comparator;
 import java.util.Date;
 import java.util.List;
 import java.util.Map;
+import java.util.concurrent.atomic.AtomicBoolean;
 
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.actuate.endpoint.annotation.Endpoint;
@@ -16,6 +17,7 @@ import org.springframework.http.MediaType;
 
 import com.google.common.collect.Maps;
 
+import cn.com.qmth.examcloud.commons.util.DateUtil;
 import cn.com.qmth.examcloud.commons.util.FreeMarkerUtil;
 import cn.com.qmth.examcloud.commons.util.ResourceLoader;
 
@@ -30,6 +32,8 @@ import cn.com.qmth.examcloud.commons.util.ResourceLoader;
 @Endpoint(id = "api-status")
 public class ApiStatusEndpoint {
 
+	private static AtomicBoolean running = new AtomicBoolean(false);
+
 	@Autowired
 	ApiStatusInfoCollector apiStatusInfoCollector;
 
@@ -54,44 +58,55 @@ public class ApiStatusEndpoint {
 	@ReadOperation(produces = {MediaType.TEXT_HTML_VALUE})
 	public String get(@Selector String order) {
 
-		List<ApiStatusInfo> list = ApiStatusInfoHolder.getApiStatusInfoList();
-
-		Collections.sort(list, new Comparator<ApiStatusInfo>() {
-			@Override
-			public int compare(ApiStatusInfo o1, ApiStatusInfo o2) {
-
-				try {
-					Field field = o1.getClass().getDeclaredField(order);
-					field.setAccessible(true);
-					Object value1 = field.get(o1);
-					Object value2 = field.get(o2);
-
-					if (null == value1) {
-						return -1;
-					} else if (null == value2) {
-						return 1;
-					} else if (value1 instanceof Long) {
-						return (int) (((Long) value2) - ((Long) value1));
-					} else if (value1 instanceof Double) {
-						return (int) (((Double) value2) - ((Double) value1));
-					} else if (value1 instanceof String) {
-						return ((String) value1).compareToIgnoreCase((String) value2);
-					} else {
+		if (!running.compareAndSet(false, true)) {
+			return DateUtil.chinaNow() + " | 请求限制";
+		}
+
+		String ret = null;
+		try {
+			List<ApiStatusInfo> list = ApiStatusInfoHolder.getApiStatusInfoList();
+
+			Collections.sort(list, new Comparator<ApiStatusInfo>() {
+				@Override
+				public int compare(ApiStatusInfo o1, ApiStatusInfo o2) {
+
+					try {
+						Field field = o1.getClass().getDeclaredField(order);
+						field.setAccessible(true);
+						Object value1 = field.get(o1);
+						Object value2 = field.get(o2);
+
+						if (null == value1) {
+							return -1;
+						} else if (null == value2) {
+							return 1;
+						} else if (value1 instanceof Long) {
+							return (int) (((Long) value2) - ((Long) value1));
+						} else if (value1 instanceof Double) {
+							return (int) (((Double) value2) - ((Double) value1));
+						} else if (value1 instanceof String) {
+							return ((String) value1).compareToIgnoreCase((String) value2);
+						} else {
+							return 0;
+						}
+					} catch (Exception e) {
 						return 0;
 					}
-				} catch (Exception e) {
-					return 0;
 				}
-			}
-		});
+			});
+
+			Map<String, Object> map = Maps.newHashMap();
+			map.put("data", list);
+			map.put("dateTime", new Date());
+
+			String html = ResourceLoader.getResource("api-status.html");
 
-		Map<String, Object> map = Maps.newHashMap();
-		map.put("data", list);
-		map.put("dateTime", new Date());
+			ret = FreeMarkerUtil.process(html, map);
 
-		String html = ResourceLoader.getResource("api-status.html");
+		} finally {
+			running.compareAndSet(true, false);
+		}
 
-		String ret = FreeMarkerUtil.process(html, map);
 		return ret;
 	}