mysql 工具类

package JDBC;

import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Properties;

import com.mysql.jdbc.Statement;

public class 工具类 {
private static String url;
private static String user;
private static String password;
private static String driver;
static {
try {
// 读取资源获取值
Properties pro = new Properties();
// 加载文件
pro.load(new FileReader(“src/db.properties”));
// 获取文件数据
url = pro.getProperty(“url”);
user = pro.getProperty(“user”);
password = pro.getProperty(“password”);
driver = pro.getProperty(“driver”);
// 注册驱动
Class.forName(driver);

	} catch (FileNotFoundException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	} catch (IOException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	} catch (ClassNotFoundException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	}
}

public static Connection getConnection() throws SQLException {
	return DriverManager.getConnection(url, user, password);
}

public static void close(Statement stmt, Connection conn, ResultSet rs) {
	if (rs != null) {
		try {
			rs.close();
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		if (stmt != null) {
			try {
				stmt.close();
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			if (conn != null) {
				try {
					conn.close();
				} catch (SQLException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
			}
		}

	}
}

}