-- DBCP database connection settings --> <parameter> <name>url</name> <value>jdbc:jtds:sqlserver://localhost:1433;DatabaseName=pubs</value> </parameter> <parameter> <name>driverClassName</name> <value>net.sourceforge.jtds.jdbc.Driver</value> </parameter> <parameter> <name>username</name>...
03:28:47.399 [main] ERROR org.apache.tomcat.jdbc.pool.ConnectionPool - Unable to create initial connections of pool. org.postgresql.util.PSQLException: The connection attempt failed. at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.jav...
private static final String DRIVER="com.mysql.jdbc.Driver"; private static final String URL = "jdbc:mysql://127.0.0.1:3306/my_report"; private static final String USERNAME = "root"; private static final String PASSWORD = "21424019"; Connection con = null; ResultSet result = null; PreparedS...
I am using the Tomcat JDBC Connection Pool with OpenJPA in a web application. The application does not see updated data. Specifically, another java application adds or removes records from the database, but the web application never sees these updates. This is quite a serious issue. I must ...
数据库驱动的名称为:com.oceanbase.jdbc.Driver OBServer 节点的 IP 地址为xxx.xxx.xxx.xxx。 访问端口使用的是 3306。 需要访问的 Schema 名称为TEST。 租户的连接账户是root。 密码是***。 示例代码如下:#Apache Commons DBCP2 Connection Pool #Database Connection Pool Driver Class Name db.app.pool.driver...
假设您处于开发环境中,并且安全性对您来说不是问题,则可以使用以下SQL命令创建登录
web server apache tomcat11-30-The Tomcat JDBC Connection Pool web server apache tomcat11-31-websocket web server apache tomcat11-32-rewrite web server apache tomcat11-33-CDI web server apache tomcat11-34-Ahead of Time compilation support
推荐在使用连接池的情况下connection对象每次用完后都关闭. 这种情况我看应该修改一下jdbc连接池的配置.添加如下配置: removeAbandoned:true removeAbandonedTimeout:120 testOnBorrow:true logAbandoned:true 分析总结。 推荐在使用连接池的情况下connection对象每次用完后都关闭反馈...
tomcat-jdbc 8.5.15 mysql-connector-java 6.0.6 mysql 5.7.18 error is : --> SQLCODE : 0 --> SQLSTATE: 08001 --> Message : Could not create connection to database server. org.apache.tomcat.jdbc.pool.ConnectionPool.init Unable to create initial connections of pool. ...
web server apache tomcat11-30-The Tomcat JDBC Connection Pool web server apache tomcat11-31-websocket web server apache tomcat11-32-rewrite web server apache tomcat11-33-CDI web server apache tomcat11-34-Ahead of Time compilation support