支持动态调整日志级别

@@ -16,6 +16,8 @@ import java.util.concurrent.TimeUnit;
  */
  */
 public final class LogUtils {
 public final class LogUtils {
 
 
+    private static final Logger ROOT_LOGGER = (Logger) LoggerFactory.getLogger(Logger.ROOT_LOGGER_NAME);
+
     private static final Map<String, Level> sourceLevelMap = new ConcurrentHashMap<>();
     private static final Map<String, Level> sourceLevelMap = new ConcurrentHashMap<>();
 
 
     // 最大支持打开五分钟
     // 最大支持打开五分钟
@@ -38,8 +40,8 @@ public final class LogUtils {
             return "The logger [" + loggerName + "] is not found.";
             return "The logger [" + loggerName + "] is not found.";
         }
         }
 
 
-        final Level srcLevel = logger.getLevel();
-        if (srcLevel == null || level == srcLevel) {
+        final Level srcLevel = logger.getLevel() != null ? logger.getLevel() : ROOT_LOGGER.getLevel();
+        if (level == srcLevel) {
             return "The logger [" + loggerName + "] is [" + levelStr + "] already.";
             return "The logger [" + loggerName + "] is [" + levelStr + "] already.";
         }
         }
 
 

@@ -177,11 +177,21 @@ public class ToolsController {
     }
     }
 
 
 
 
+    /**
+     * 用于动态地变更日记级别。
+     * @param loggerName 日志名称，有三类：
+     *                   第一种是ROOT，对所有日志都起作用，
+     *                   第二种是具体的日志名称，如CACHE_MATCH_REQUEST，
+     *                   第三种就是全限定类名，如com.yoho.search.service.servicenew.impl.ProductListServiceImpl。
+     * @param level  调整目标级别，支持ALL/TRACE/DEBUG/INFO/WARN/ERROR/OFF这些取值
+     * @param seconds 调整日志级别的有效时间，默认为60秒，最多只能为300秒，到了时间后变更为原来的日志级别。
+     * @return
+     */
     @RequestMapping(method = RequestMethod.GET, value = "/changeLogLevel")
     @RequestMapping(method = RequestMethod.GET, value = "/changeLogLevel")
     @ResponseBody
     @ResponseBody
     public SearchApiResult changeLogLevel(@RequestParam(defaultValue = "ProductListServiceImpl") String loggerName,
     public SearchApiResult changeLogLevel(@RequestParam(defaultValue = "ProductListServiceImpl") String loggerName,
                                           @RequestParam(defaultValue = "DEBUG") String level,
                                           @RequestParam(defaultValue = "DEBUG") String level,
-                                          @RequestParam(defaultValue = "60") int seconds) throws Exception {
+                                          @RequestParam(defaultValue = "60") int seconds) {
         try {
         try {
             return new SearchApiResult().setData(LogUtils.changeRootLogLevel(loggerName, level, seconds));
             return new SearchApiResult().setData(LogUtils.changeRootLogLevel(loggerName, level, seconds));
         } catch (Exception e) {
         } catch (Exception e) {

@@ -21,6 +21,23 @@
         </encoder>
         </encoder>
     </appender>
     </appender>
 
 
+    <!-- DEBUG级别日志 appender -->
+    <appender name="DEBUG" class="ch.qos.logback.core.rolling.RollingFileAppender">
+        <!-- 过滤器，过滤掉 TRACE 和 DEBUG 和 INFO 级别的日志 -->
+        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
+            <!-- 按天回滚 daily -->
+            <fileNamePattern>${catalina.home}/logs/%d{yyyy-MM-dd}/debug.log</fileNamePattern>
+            <!-- 日志最大的保存天数 -->
+            <maxHistory>${maxHistory}</maxHistory>
+        </rollingPolicy>
+        <triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
+            <maxFileSize>${maxFileSize}</maxFileSize>
+        </triggeringPolicy>
+        <encoder>
+            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger - %msg%n</pattern>
+        </encoder>
+    </appender>
+
     <!-- WARN级别日志 appender -->
     <!-- WARN级别日志 appender -->
     <appender name="WARN" class="ch.qos.logback.core.rolling.RollingFileAppender">
     <appender name="WARN" class="ch.qos.logback.core.rolling.RollingFileAppender">
         <!-- 过滤器，过滤掉 TRACE 和 DEBUG 和 INFO 级别的日志 -->
         <!-- 过滤器，过滤掉 TRACE 和 DEBUG 和 INFO 级别的日志 -->
@@ -191,6 +208,8 @@
         <appender-ref ref="STDOUT" />
         <appender-ref ref="STDOUT" />
         <!-- 文件输出 -->
         <!-- 文件输出 -->
         <appender-ref ref="WARN" />
         <appender-ref ref="WARN" />
+        <!-- 文件输出 -->
+        <appender-ref ref="DEBUG" />
     </root>
     </root>
 
 
     <!-- http请求处理超时日志 -->
     <!-- http请求处理超时日志 -->