maven利用jtds，c3p0连接SqlServer

由于maven无法直接使用sqljdbc4.jar来连接SqlServer，因此使用jtds和c3p0来替代。

具体做法：

1. 加入pom依赖

<dependency>
        <groupId>net.sourceforge.jtds</groupId>
        <artifactId>jtds</artifactId>
        <version>1.3.1</version>
    </dependency>
    <dependency>
        <groupId>c3p0</groupId>
        <artifactId>c3p0</artifactId>
        <version>0.9.1.2</version>
    </dependency>

2. 在src/main/resources下加入c3p0-config.xml

<c3p0-config>

    <default-config>
        <property name="driverClass">net.sourceforge.jtds.jdbc.Driver</property>

        <property name="jdbcUrl">jdbc:jtds:sqlserver://localhost:1433/mydb
        </property>

        <property name="user">sa</property>

        <property name="password">Admin123</property>

        <property name="acquireIncrement">50</property>

        <property name="initialPoolSize">100</property>

        <property name="minPoolSize">50</property>

        <property name="maxPoolSize">1000</property>
       
    </default-config>
   
   
    <named-config name="mydb">

        <property name="driverClass">net.sourceforge.jtds.jdbc.Driver</property>

        <property name="jdbcUrl">jdbc:jtds:sqlserver://127.0.0.1:1433/mydb
        </property>

        <property name="user">sa</property>

        <property name="password">Admin123</property>

        <property name="checkoutTimeout">30000</property>

        <property name="idleConnectionTestPeriod">30</property>

        <property name="initialPoolSize">10</property>

        <property name="maxIdleTime">30</property>

        <property name="maxPoolSize">100</property>

        <property name="minPoolSize">10</property>

        <property name="maxStatements">200</property>

    </named-config>

</c3p0-config>

3.测试

public class Test
{

private static HashMap connMap = new HashMap();

public static void main(String[] args) throws Exception
{
testConn();
}

public static void testConn() throws Exception
{
// Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
// Connection ct = DriverManager.getConnection("jdbc:sqlserver://localhost:1433; DatabaseName=mydb","sa","Admin123");

Connection ct = getConnection("mydb");
// Connection ct = getDefaultConnection();
PreparedStatement st = ct.prepareStatement("select id, name from dbo.test_conn");
st.execute();
ResultSet rs = st.getResultSet();
while(rs.next())
{
System.out.println("result: " + rs.getString(1));
}
}

public static Connection getConnection(String name){

Connection conn = null;
ComboPooledDataSource ds =null;
if(name==null||name.equals(""))
return null;

if(connMap.keySet().contains(name)){
ds = (ComboPooledDataSource)connMap.get(name);
}else{
ds = new ComboPooledDataSource(name);
}
try {
if(ds==null){
return null;
}
conn = ds.getConnection();
connMap.put(name, ds);
} catch (SQLException e) {
}
return conn;
}

public static Connection getDefaultConnection(){
ComboPooledDataSource ds = new ComboPooledDataSource();
try{
return ds.getConnection();
}catch(SQLException e){
}
return null;
}

}

maven利用jtds，c3p0连接SqlServer

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