请问这是什么异常?为什么数据显示三条
来源:2-5 核心控制器
慕函数4495222
2020-03-13 23:43:57
13-Mar-2020 23:41:06.331 璀﹀憡 [RMI TCP Connection(10)-127.0.0.1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesJdbc Web搴旂敤绋嬪簭 [ROOT] 娉ㄥ唽浜咼DBC椹卞姩绋嬪簭 [com.mysql.jdbc.Driver]锛屼絾鍦╓eb搴旂敤绋嬪簭鍋滄鏃舵棤娉曟敞閿�瀹冦�� 涓洪槻姝㈠唴瀛樻硠婕忥紝JDBC椹卞姩绋嬪簭宸茶寮哄埗鍙栨秷娉ㄥ唽銆�
13-Mar-2020 23:41:06.331 璀﹀憡 [RMI TCP Connection(10)-127.0.0.1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesJdbc Web搴旂敤绋嬪簭 [ROOT] 娉ㄥ唽浜咼DBC椹卞姩绋嬪簭 [org.apache.ibatis.datasource.unpooled.UnpooledDataSource.DriverProxy]锛屼絾鍦╓eb搴旂敤绋嬪簭鍋滄鏃舵棤娉曟敞閿�瀹冦�� 涓洪槻姝㈠唴瀛樻硠婕忥紝JDBC椹卞姩绋嬪簭宸茶寮哄埗鍙栨秷娉ㄥ唽銆�
13-Mar-2020 23:41:06.332 璀﹀憡 [RMI TCP Connection(10)-127.0.0.1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [ROOT] appears to have started a thread named [Abandoned connection cleanup thread] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
java.lang.Object.wait(Native Method)
java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:143)
com.mysql.jdbc.AbandonedConnectionCleanupThread.run(AbandonedConnectionCleanupThread.java:64)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
java.lang.Thread.run(Thread.java:748)
13-Mar-2020 23:41:06.986 淇℃伅 [RMI TCP Connection(10)-127.0.0.1] org.apache.jasper.servlet.TldScanner.scanJars 鑷冲皯鏈変竴涓狫AR琚壂鎻忕敤浜嶵LD浣嗗皻鏈寘鍚玊LD銆� 涓烘璁板綍鍣ㄥ惎鐢ㄨ皟璇曟棩蹇楄褰曪紝浠ヨ幏鍙栧凡鎵弿浣嗘湭鍦ㄥ叾涓壘鍒癟LD鐨勫畬鏁碕AR鍒楄〃銆� 鍦ㄦ壂鎻忔湡闂磋烦杩囦笉闇�瑕佺殑JAR鍙互缂╃煭鍚姩鏃堕棿鍜孞SP缂栬瘧鏃堕棿銆�
[2020-03-13 11:41:07,507] Artifact icakepro:war exploded: Artifact is deployed successfully
[2020-03-13 11:41:07,507] Artifact icakepro:war exploded: Deploy took 1,210 milliseconds
13-Mar-2020 23:41:10.343 淇℃伅 [Abandoned connection cleanup thread] org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading Illegal access: this web application instance has been stopped already. Could not load []. The following stack trace is thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access.
java.lang.IllegalStateException: Illegal access: this web application instance has been stopped already. Could not load []. The following stack trace is thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access.
at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading(WebappClassLoaderBase.java:1385)
at org.apache.catalina.loader.WebappClassLoaderBase.getResource(WebappClassLoaderBase.java:1038)
at com.mysql.jdbc.AbandonedConnectionCleanupThread.checkContextClassLoaders(AbandonedConnectionCleanupThread.java:90)
at com.mysql.jdbc.AbandonedConnectionCleanupThread.run(AbandonedConnectionCleanupThread.java:63)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:748)
1回答
好帮手慕阿莹
2020-03-14
1、请同学贴一下分类管理页面的jsp代码
2、请同学贴一下查找分类的后台相关代码,老师帮你看一下,
3、同学可以先输出一下查询出来的所有分类。把打印的结果也贴一下
祝学习愉快。
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