Fix #2248

core/src/main/java/com/alibaba/nacos/core/env/ReloadableConfigs.java

@@ -0,0 +1,72 @@
+/*
+ * Copyright 1999-2018 Alibaba Group Holding Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.alibaba.nacos.core.env;
+
+
+import org.apache.commons.lang3.StringUtils;
+import org.omg.PortableInterceptor.SYSTEM_EXCEPTION;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
+import org.springframework.scheduling.annotation.Scheduled;
+import org.springframework.stereotype.Component;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Properties;
+
+/**
+ * Reload application.properties
+ *
+ * @author nkorange
+ * @since 1.2.0
+ */
+@ConditionalOnProperty(name = "spring.config.location", matchIfMissing = false)
+@Component
+public class ReloadableConfigs {
+
+    private Properties properties;
+
+    @Value("${spring.config.location}")
+    private String path;
+
+    private static final String FILE_PREFIX = "file:";
+
+    @Scheduled(fixedRate = 5000)
+    public void reload() throws IOException {
+        Properties properties = new Properties();
+        InputStream inputStream = null;
+        if (StringUtils.isNotBlank(path) && path.contains(FILE_PREFIX)) {
+            String[] paths = path.split(",");
+            path = paths[paths.length - 1].substring(FILE_PREFIX.length());
+        }
+        try {
+            inputStream = new FileInputStream(new File(path + "application.properties"));
+        } catch (Exception ignore) {
+        }
+        if (inputStream == null) {
+            inputStream = getClass().getResourceAsStream("/application.properties");
+        }
+        properties.load(inputStream);
+        inputStream.close();
+        this.properties = properties;
+    }
+
+    public final Properties getProperties() {
+        return properties;
+    }
+}