Spring实战之属性覆盖占位符配置器用法示例

<&＃63;xml version="1.0" encoding="GBK"&＃63;>

   
   
      
        
           dbconn.properties
           
        
      
   
   
   

dataSource.driverClass=com.mysql.jdbc.Driver
dataSource.jdbcUrl=jdbc:mysql://localhost:3306/spring
dataSource.user=root
dataSource.password=32147

package lee;
import javax.sql.DataSource;
import java.sql.*;
import org.springframework.context.*;
import org.springframework.context.support.*;
public class BeanTest
{
  public static void main(String[] args)throws Exception
  {
    ApplicationContext ctx = new
      ClassPathXmlApplicationContext("beans.xml");
    DataSource ds = (DataSource)ctx.getBean("dataSource");
    Connection cOnn= ds.getConnection();
    PreparedStatement pstmt = conn.prepareStatement(
      "insert into news_inf value(null , &＃63; , &＃63;)");
    pstmt.setString(1 , "疯狂Java讲义3");
    pstmt.setString(2 , "疯狂iOS讲义3");
    pstmt.executeUpdate();
    pstmt.close();
    conn.close();
  }
}