Tomcat部署遇到的问题排查

女爷i 2022-08-05 13:13 258阅读 0赞

项目服务端：Tomcat6.0.41

选用数据库：Mysql5.6.17

JDK环境：1.6.37

运行系统：Windows server 2008（64bit）

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部署好Tomcat项目，运行startup.bat.提示错误（节选）：

……

2014-8-20 15:59:13 org.apache.cxf.endpoint.ServerImpl initDestination  
信息: Setting the server's publish address to be /pay  
2014-8-20 15:59:13 org.apache.cxf.jaxrs.provider.ProviderFactory setDefaultProvider  
信息: Problem with setting the default provider org.apache.cxf.jaxrs.provider.JSONProviderorg/codehaus/jettison/mapped/TypeConverter  
2014-8-20 15:59:14 org.apache.catalina.core.StandardContext start  
严重: Error listenerStart  
2014-8-20 15:59:14 org.apache.catalina.core.StandardContext start  
严重: Context \[/xGameServer\] startup failed due to previous errors  
2014-8-20 15:59:14 org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc  
**严重: The web application \[/xGameServer\] registered the JDBC driver \[com.mysql.jdbc.Driver\] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.**  
2014-8-20 15:59:14 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads  
严重: The web application \[/xGameServer\] appears to have started a thread named \[Thread-2\] but has failed to stop it. This is very likely to create a memory leak.  
2014-8-20 15:59:14 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads  
严重: The web application \[/xGameServer\] appears to have started a thread named \[Thread-3\] but has failed to stop it. This is very likely to create a memory leak.  
2014-8-20 15:59:14 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads  
严重: The web application \[/xGameServer\] appears to have started a thread named \[Thread-5\] but has failed to stop it. This is very likely to create a memory leak.  
2014-8-20 15:59:14 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads  
严重: The web application \[/xGameServer\] appears to have started a thread named \[NioSocketAcceptor-1-idleStatusChecker\] but has failed to stop it. This is very likely to create a memory leak.

……

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在这里，需要吐槽tomcat的错误提示。因为它的错误提示很表面。单纯看这错误提示内容，**红色**部分内容，我们简单地理解为web项目启动了JDBC驱动程序，但是在web项目停止时，JDBC驱动程序注销失败。为了防止内存泄漏，该驱动程序被强制干掉了....然后就引发了后面一大片的蓝色部分内容：提示好多好多线程被启动了，吓唬你不关闭线程的话可能会导致程序内存泄漏（也就是可能会导致程序挂掉）。

这个时候，你需要这样一份文件（Tomcat不自带）：

============================文件内容===============================

**handlers = org.apache.juli.FileHandler, java.util.logging.ConsoleHandler   
  
\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#   
\# Handler specific properties.   
\# Describes specific configuration info for Handlers.   
\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#   
  
org.apache.juli.FileHandler.level = FINE   
org.apache.juli.FileHandler.directory = $\{catalina.base\}/logs   
org.apache.juli.FileHandler.prefix = error-debug.   
  
java.util.logging.ConsoleHandler.level = FINE   
java.util.logging.ConsoleHandler.formatter = java.util.logging.SimpleFormatter**

============================文件内容===============================

新建一个记事本，将上面绿色字体内容C-V操作，然后保存文件为**logging.properties**

OK，完成。

将这份文件拷贝到部署项目目录的\\WEB-INF\\Classes目录下。

e.g.假设我的部署项目目录名为：HeHe

把文件放在：webapps\\HeHe\\WEB-INF\\Classes\\logging.properties

然后再次运行tomcat的startup.bat，界面显示的错误不变，我们要查看的是Tomcat根目录下的logs目录（例如：E:\\tomcat6\\logs），有一份文本文件：**error-debug.xxxx-xx-xx**

回到我们项目运行失败的问题上，从**error-debug.xxxx-xx-xx**文件中可以看到，最根本报错的地方是：

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2014-8-20 16:25:46 org.apache.catalina.core.ApplicationContext log  
信息: Initializing Spring root WebApplicationContext  
2014-8-20 16:25:51 org.apache.cxf.endpoint.ServerImpl initDestination  
信息: Setting the server's publish address to be /pay  
2014-8-20 16:25:51 org.apache.cxf.jaxrs.provider.ProviderFactory setDefaultProvider  
信息: Problem with setting the default provider org.apache.cxf.jaxrs.provider.JSONProviderorg/codehaus/jettison/mapped/TypeConverter  
2014-8-20 16:25:52 org.apache.catalina.core.StandardContext listenerStart  
严重: Exception sending context initialized event to listener instance of class com.linyun.xgame.listener.InitSystemListener  
org.springframework.jdbc.UncategorizedSQLException: SqlMapClient operation; uncategorized SQLException for SQL \[\]; SQL state \[HY000\]; error code \[1130\];     
\--- The error occurred in com/linyun/xgame/dao/sqlmap/Global.xml.    
\--- The error occurred while executing query.    
\--- Check the    SELECT VALUE\_INT AS valueInt, VALUE\_STR AS valueStr,PRO\_1 AS pro\_1,PRO\_2 AS pro\_2,PRO\_3 AS pro\_3,PRO\_4 AS pro\_4,PRO\_5 AS pro\_5,PARA\_ID AS paraID,PARA\_DESC AS paraDesc,ISCLIENT AS isclient     FROM T\_GLOBAL  .    
\--- Check the SQL Statement (preparation failed).    
\--- **Cause: java.sql.SQLException: null,  message from server: "Host 'iZ23e08c18sZ' is not allowed to connect to this MySQL server"; nested exception is com.ibatis.common.jdbc.exception.NestedSQLException:  **   
\--- The error occurred in com/linyun/xgame/dao/sqlmap/Global.xml.    
\--- The error occurred while executing query.    
\--- Check the    SELECT VALUE\_INT AS valueInt, VALUE\_STR AS valueStr,PRO\_1 AS pro\_1,PRO\_2 AS pro\_2,PRO\_3 AS pro\_3,PRO\_4 AS pro\_4,PRO\_5 AS pro\_5,PARA\_ID AS paraID,PARA\_DESC AS paraDesc,ISCLIENT AS isclient     FROM T\_GLOBAL  .    
\--- Check the SQL Statement (preparation failed).    
\--- Cause: java.sql.SQLException: null,  message from server: "Host 'iZ23e08c18sZ' is not allowed to connect to this MySQL server"  
 at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:83)  
 at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:80)  
 at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:80)

……

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红色部分就把问题暴露出来了：**数据库访问失败了...**

访问数据库失败原因：Mysql默认是不可以通过远程机器访问的，所以我们需要开启远程访问。

解决方式（网上有提供其他方法，这里只说我选择的方式）：

1.进入到Mysql控制台。运行-CMD，一直cd进入到Mysql的bin目录，输入：mysql -uroot -p

2.提示输入mysql的访问密码。

![201936178624555.jpg][]

3.输入密码后输入：use mysql;(记得分号)

4.输入：show tables;

5.输入：select host from user;

6.输入：update user set host = '%' where user = 'root' and host = 'loaclhost';