JDBC

#######配置文件：config.properties
#oracle
#driver=oracle.jdbc.driver.OracleDriver
#url=jdbc:oracle:thin:@localhost:1521:myoracle
#username=scott
#password=tiger

#mysql driver
driver=org.gjt.mm.mysql.Driver
url=jdbc:mysql://localhost:3306/newvillage
username=root
password=

#####文件：GetConfig.java

package myconn;

import java.util.ResourceBundle;

public class GetConfig {
static String path="myconn.config";
static ResourceBundle resource=ResourceBundle.getBundle(path);
public static String getValues(String key){
return resource.getString(key);
}
}


#得到数据链接文件DBConnection.java
package myconn;

import java.sql.Connection;
import java.sql.DriverManager;

import myconn.GetConfig;

public class DBConnection {
public static Connection getConn() {
Connection conn = null;
String driver = GetConfig.getValues("driver");
String url = GetConfig.getValues("url");
String username = GetConfig.getValues("username");
String password = GetConfig.getValues("password");
try {
Class.forName(driver);
conn = DriverManager.getConnection(url, username, password);
} catch (Exception e) {
e.printStackTrace();
}
return conn;
}
/**
*主方法测试用
*/
public static void main(String args[]){
Connection con=getConn();
System.out.print(con);
}
}