使用jbc查询数据封装成对象的工具类

适用于获取Connection对象的util
package com.briup.myDataSource;

import java.io.FileReader;
import java.io.InputStream;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Properties;

// 用于连接数据库的工具类
public class JDBCUTil {
	private static String url;
	private static String user;
	private static String password;

	static {

		try {
			Properties pro = new Properties();
			InputStream is = JDBCUTil.class.getClassLoader().getResourceAsStream("com/briup/jdbctest/jdbc.properties");
			pro.load(is);

			url = pro.getProperty("url");
			user = pro.getProperty("user");
			password = pro.getProperty("password");
			// 加载驱动类
			Class.forName(pro.getProperty("driver"));
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

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

	// 释放增删改的资源
	public static void close(Statement statement, Connection conn) {
		if (statement != null) {
			try {
				statement.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();
			}
		}
	}

	// 用于查询时的释放资源
	public static void close(ResultSet set, Statement statement, Connection conn) {
		if (set != null) {
			try {
				set.close();
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}

		if (statement != null) {
			try {
				statement.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();
			}
		}
	}
}