解決memory leak問題

 應用程序註冊了JDBC驅動，但當程序停止時無法註銷這個驅動，tomcat爲了防止內存溢出，就給強制註銷了

 

解決：

重寫了org.apache.commons.dbcp.BasicDataSource  的 close（）方法：

 

package org.company.util;

import java.sql.DriverManager;
import java.sql.SQLException;

import org.apache.commons.dbcp.BasicDataSource;

public class XBasicDataSource extends BasicDataSource{
 @Override
 public synchronized void close() throws SQLException{
//  System.out.println("......輸出數據源Driver的url："+DriverManager.getDriver(url));
  DriverManager.deregisterDriver(DriverManager.getDriver(url));
  super.close();
 }
}

。。。

 

在dbcp數據源中的配置：

  class="org.company.util.XBasicDataSource" destroy-method="close">
  
   value="oracle.jdbc.driver.OracleDriver">
  
  
   value="jdbc:oracle:thin:@XX.XXX.XX.X:1521:ccdb">
  

 

問題解決~

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再重新加載的時候發現還有：

嚴重: The web application [/codeMarket] registered the JBDC 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.
2012-2-9 17:43:12 org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc

檢查了一下jar包  發現多了一個mysql-connector-java-bin.jar   趕緊刪之   ok~