动态Hibernate配置类

最新推荐文章于 2024-08-05 14:22:58 发布
最新推荐文章于 2024-08-05 14:22:58 发布
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本文介绍了一个动态配置Hibernate连接的Java类实现。该类可以根据不同的数据库类型（如MySQL、SQL Server、Oracle）设置连接属性，并使用C3P0作为连接池。

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import org.hibernate.HibernateException;
import org.hibernate.cfg.Configuration;


public class DynamicHibernateConfiguration extends Configuration {
    public DynamicHibernateConfiguration() {
        super();
    }

    public void reset() {
        super.reset();
    }

    public DynamicHibernateConfiguration(String dialect, String driverClass,
            String ipAddress, String port, String dataBaseName,
            String username, String password) throws HibernateException {
        String connection_url = "";
        if (dialect.indexOf("MySQL") > -1) {
            connection_url = "jdbc:mysql://" + ipAddress + "/" + dataBaseName;
        } else if (dialect.indexOf("SQLServer") > -1) {
            connection_url = "jdbc:sqlserver://" + ipAddress + ":" + port
                    + ";DataBaseName=" + dataBaseName;
        } else if (dialect.indexOf("Oracle") > -1) {
            connection_url = "jdbc:oracle:thin:@//" + ipAddress + ":" + port
                    + "/" + dataBaseName;
        } else {
            throw new HibernateException("The dialect was not allowed.==fd=="
                    + dialect);
        }
        // 连接池提供类，本配置采用bonecp连接池

        /*super.setProperty("hibernate.connection.provider_class","com.jolbox.bonecp.provider.BoneCPConnectionProvider");
        super.setProperty("hibernate.dialect", dialect);
        super.setProperty("hibernate.connection.url", connection_url);
        super.setProperty("hibernate.connection.driver_class", driverClass);
        super.setProperty("hibernate.connection.username", username);
        super.setProperty("hibernate.connection.password", password);
        super.setProperty("bonecp.idleMaxAge", "0");
        super.setProperty("bonecp.idleConnectionTestPeriod", "1");
        super.setProperty("bonecp.partitionCount", "3");
        super.setProperty("bonecp.maxConnectionsPerPartition", "25");
        super.setProperty("bonecp.minConnectionsPerPartition", "5");
        super.setProperty("bonecp.acquireIncrement", "1");
        super.setProperty("bonecp.connectionTimeout", "5000");
        super.setProperty("bonecp.poolAvailabilityThreshold", "30");
        super.setProperty("bonecp.statementsCacheSize", "50");
        super.setProperty("bonecp.preparedStatementCacheSize", "50");
        super.setProperty("bonecp.releaseHelperThreads", "3");
        super.setProperty("bonecp.statementReleaseHelperThreads", "3");
        super.setProperty("bonecp.connectionTestStatement","select 1");
        super.setProperty("hibernate.connection.release_mode","after_statement");*/

        //c3p0
        System.out.println("connection_url==="+connection_url);
        super.setProperty("hibernate.connection.provider_class","org.hibernate.connection.C3P0ConnectionProvider");
        super.setProperty("hibernate.dialect", dialect);
        super.setProperty("hibernate.connection.url", connection_url);
        super.setProperty("hibernate.connection.driver_class", driverClass);
        super.setProperty("hibernate.connection.username", username);
        super.setProperty("hibernate.connection.password", password);
        super.setProperty("hibernate.connection.release_mode","after_statement");
        super.setProperty("hibernate.c3p0.max_size","15");
        super.setProperty("hibernate.c3p0.min_size","10");
        super.setProperty("hibernate.c3p0.timeout","120");
        super.setProperty("hibernate.c3p0.max_statements","100");
        super.setProperty("hibernate.c3p0.idle_test_period","120");
        super.setProperty("hibernate.c3p0.acquire_increment","5");
        super.setProperty("hibernate.c3p0.testConnectionOnCheckin","true");
        super.setProperty("hibernate.c3p0.testConnectionOnCheckout","true");



    }

    public DynamicHibernateConfiguration(String dialect, String driverClass,
            String ipAddress, String port, String dataBaseName,
            String username, String password, String schema, String catalog)
            throws HibernateException {
        String connection_url = "";
        if (dialect.indexOf("MySQL") > -1) {
            connection_url = "jdbc:mysql://" + ipAddress + "/" + dataBaseName;
        } else if (dialect.indexOf("SQLServer") > -1) {
            connection_url = "jdbc:sqlserver://" + ipAddress + ":" + port
                    + ";DataBaseName=" + dataBaseName;
        } else if (dialect.indexOf("Oracle") > -1) {
            connection_url = "jdbc:oracle:thin:@//" + ipAddress + ":" + port
                    + "/" + dataBaseName;
        }else {
            throw new HibernateException("The dialect was not allowed.==fd=="
                    + dialect);
        }
        // 连接池提供类，本配置采用bonecp连接池
        /*super.setProperty("hibernate.connection.provider_class","com.jolbox.bonecp.provider.BoneCPConnectionProvider");
        super.setProperty("hibernate.dialect", dialect);
        super.setProperty("hibernate.connection.url", connection_url);
        super.setProperty("hibernate.connection.driver_class", driverClass);
        super.setProperty("hibernate.connection.username", username);
        super.setProperty("hibernate.connection.password", password);
        super.setProperty("hibernate.default_schema", schema);
        super.setProperty("bonecp.idleMaxAge", "0");
        super.setProperty("bonecp.idleConnectionTestPeriod", "1");
        super.setProperty("bonecp.partitionCount", "3");
        super.setProperty("bonecp.maxConnectionsPerPartition", "25");
        super.setProperty("bonecp.minConnectionsPerPartition", "5");
        super.setProperty("bonecp.acquireIncrement", "1");
        super.setProperty("bonecp.connectionTimeout", "5000");
        super.setProperty("bonecp.poolAvailabilityThreshold", "30");
        super.setProperty("bonecp.statementsCacheSize", "50");
        super.setProperty("bonecp.preparedStatementCacheSize", "50");
        super.setProperty("bonecp.releaseHelperThreads", "3");
        super.setProperty("bonecp.statementReleaseHelperThreads", "3");
        super.setProperty("bonecp.connectionTestStatement","select 1");
        super.setProperty("hibernate.connection.release_mode","after_statement");*/

        super.setProperty("hibernate.connection.provider_class","org.hibernate.connection.C3P0ConnectionProvider");
        super.setProperty("hibernate.dialect", dialect);
        super.setProperty("hibernate.connection.url", connection_url);
        super.setProperty("hibernate.connection.driver_class", driverClass);
        super.setProperty("hibernate.connection.username", username);
        super.setProperty("hibernate.connection.password", password);
        super.setProperty("hibernate.connection.release_mode","after_statement");
        super.setProperty("hibernate.c3p0.max_size","15");
        super.setProperty("hibernate.c3p0.min_size","10");
        super.setProperty("hibernate.c3p0.timeout","120");
        super.setProperty("hibernate.c3p0.max_statements","100");
        super.setProperty("hibernate.c3p0.idle_test_period","120");
        super.setProperty("hibernate.c3p0.acquire_increment","5");
        super.setProperty("hibernate.c3p0.testConnectionOnCheckin","true");
        super.setProperty("hibernate.c3p0.testConnectionOnCheckout","true");

    }



    public DynamicHibernateConfiguration(String dialect, String driverClass,
            String ipAddress, String port, String dataBaseName,
            String username, String password, String cj) throws HibernateException {
        String connection_url = "";
        if (dialect.indexOf("MySQL") > -1) {
            connection_url = "jdbc:mysql://" + ipAddress + "/" + dataBaseName;
        } else if (dialect.indexOf("SQLServer") > -1) {
            connection_url = "jdbc:sqlserver://" + ipAddress + ":" + port
                    + ";DataBaseName=" + dataBaseName;
        }  else if (dialect.indexOf("Oracle") > -1) {
            connection_url = "jdbc:oracle:thin:@//" + ipAddress + ":" + port
                    + "/" + dataBaseName;
        } else {
            throw new HibernateException("The dialect was not allowed.==fd=="
                    + dialect);
        }
        // 连接池提供类，本配置采用bonecp连接池

        /*super.setProperty("hibernate.connection.provider_class","com.jolbox.bonecp.provider.BoneCPConnectionProvider");
        super.setProperty("hibernate.dialect", dialect);
        super.setProperty("hibernate.connection.url", connection_url);
        super.setProperty("hibernate.connection.driver_class", driverClass);
        super.setProperty("hibernate.connection.username", username);
        super.setProperty("hibernate.connection.password", password);
        super.setProperty("bonecp.idleMaxAge", "0");
        super.setProperty("bonecp.idleConnectionTestPeriod", "1");
        super.setProperty("bonecp.partitionCount", "3");
        super.setProperty("bonecp.maxConnectionsPerPartition", "25");
        super.setProperty("bonecp.minConnectionsPerPartition", "5");
        super.setProperty("bonecp.acquireIncrement", "1");
        super.setProperty("bonecp.connectionTimeout", "5000");
        super.setProperty("bonecp.poolAvailabilityThreshold", "30");
        super.setProperty("bonecp.statementsCacheSize", "50");
        super.setProperty("bonecp.preparedStatementCacheSize", "50");
        super.setProperty("bonecp.releaseHelperThreads", "3");
        super.setProperty("bonecp.statementReleaseHelperThreads", "3");
        super.setProperty("bonecp.connectionTestStatement","select 1");
        super.setProperty("hibernate.connection.release_mode","after_statement");*/

        //c3p0

        super.setProperty("hibernate.connection.provider_class","org.hibernate.connection.C3P0ConnectionProvider");
        super.setProperty("hibernate.dialect", dialect);
        super.setProperty("hibernate.connection.url", connection_url);
        super.setProperty("hibernate.connection.driver_class", driverClass);
        super.setProperty("hibernate.connection.username", username);
        super.setProperty("hibernate.connection.password", password);
        super.setProperty("hibernate.connection.release_mode","after_statement");
        super.setProperty("hibernate.c3p0.max_size","15");
        super.setProperty("hibernate.c3p0.min_size","10");
        super.setProperty("hibernate.c3p0.timeout","120");
        super.setProperty("hibernate.c3p0.max_statements","100");
        super.setProperty("hibernate.c3p0.idle_test_period","120");
        super.setProperty("hibernate.c3p0.acquire_increment","5");
        super.setProperty("hibernate.c3p0.testConnectionOnCheckin","true");
        super.setProperty("hibernate.c3p0.testConnectionOnCheckout","true");



    }

    public DynamicHibernateConfiguration(String dialect, String driverClass,
            String ipAddress, String port, String dataBaseName,
            String username, String password, String schema, String catalog, String cj)
            throws HibernateException {
        String connection_url = "";
        if (dialect.indexOf("MySQL") > -1) {
            connection_url = "jdbc:mysql://" + ipAddress + "/" + dataBaseName;
        } else if (dialect.indexOf("SQLServer") > -1) {
            connection_url = "jdbc:sqlserver://" + ipAddress + ":" + port
                    + ";DataBaseName=" + dataBaseName;
        } else if (dialect.indexOf("Oracle") > -1) {
            connection_url = "jdbc:oracle:thin:@//" + ipAddress + ":" + port
                    + "/" + dataBaseName;
        } else {
            throw new HibernateException("The dialect was not allowed.==fd=="
                    + dialect);
        }
        // 连接池提供类，本配置采用bonecp连接池
        /*super.setProperty("hibernate.connection.provider_class","com.jolbox.bonecp.provider.BoneCPConnectionProvider");
        super.setProperty("hibernate.dialect", dialect);
        super.setProperty("hibernate.connection.url", connection_url);
        super.setProperty("hibernate.connection.driver_class", driverClass);
        super.setProperty("hibernate.connection.username", username);
        super.setProperty("hibernate.connection.password", password);
        super.setProperty("hibernate.default_schema", schema);
        super.setProperty("bonecp.idleMaxAge", "0");
        super.setProperty("bonecp.idleConnectionTestPeriod", "1");
        super.setProperty("bonecp.partitionCount", "3");
        super.setProperty("bonecp.maxConnectionsPerPartition", "25");
        super.setProperty("bonecp.minConnectionsPerPartition", "5");
        super.setProperty("bonecp.acquireIncrement", "1");
        super.setProperty("bonecp.connectionTimeout", "5000");
        super.setProperty("bonecp.poolAvailabilityThreshold", "30");
        super.setProperty("bonecp.statementsCacheSize", "50");
        super.setProperty("bonecp.preparedStatementCacheSize", "50");
        super.setProperty("bonecp.releaseHelperThreads", "3");
        super.setProperty("bonecp.statementReleaseHelperThreads", "3");
        super.setProperty("bonecp.connectionTestStatement","select 1");
        super.setProperty("hibernate.connection.release_mode","after_statement");*/

        super.setProperty("hibernate.connection.provider_class","org.hibernate.connection.C3P0ConnectionProvider");
        super.setProperty("hibernate.dialect", dialect);
        super.setProperty("hibernate.connection.url", connection_url);
        super.setProperty("hibernate.connection.driver_class", driverClass);
        super.setProperty("hibernate.connection.username", username);
        super.setProperty("hibernate.connection.password", password);
        super.setProperty("hibernate.connection.release_mode","after_statement");
        super.setProperty("hibernate.c3p0.max_size","15");
        super.setProperty("hibernate.c3p0.min_size","10");
        super.setProperty("hibernate.c3p0.timeout","120");
        super.setProperty("hibernate.c3p0.max_statements","100");
        super.setProperty("hibernate.c3p0.idle_test_period","120");
        super.setProperty("hibernate.c3p0.acquire_increment","5");
        super.setProperty("hibernate.c3p0.testConnectionOnCheckin","true");
        super.setProperty("hibernate.c3p0.testConnectionOnCheckout","true");

    }

}
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