package druidConnect;
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import com.alibaba.druid.pool.DruidDataSourceFactory;
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import javax.sql.DataSource;
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import java.io.IOException;
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import java.sql.Connection;
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import java.sql.ResultSet;
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import java.sql.SQLException;
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import java.sql.Statement;
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import java.util.Properties;
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public class JDBCUtils{
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//1.¶¨Òå³ÉÔ±±äÁ¿
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private static DataSource dataSource;
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static {
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try {
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//1.¼ÓÔØÅäÖÃÎļþ
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Properties properties = new Properties();
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properties.load(JDBCUtils.class.getClassLoader().getResourceAsStream("druid.properties"));
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//System.out.println(properties);
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//2.»ñÈ¡DataSource
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dataSource = DruidDataSourceFactory.createDataSource(properties);
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} catch (IOException e) {
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e.printStackTrace();
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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/**
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* »ñÈ¡Á¬½Ó
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*/
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public static Connection getConnection() throws Exception {
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return dataSource.getConnection();
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}
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/**
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* ÊÍ·Å×ÊÔ´
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*/
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public static void close(Statement stmt, Connection conn){
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close(null, stmt, conn);
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}
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/**
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* ÊÍ·Å×ÊÔ´
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*/
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public static void close(ResultSet rs, Statement stmt, Connection conn){
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if (rs != null){
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try {
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rs.close();
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} catch (SQLException e) {
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e.printStackTrace();
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}
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}
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if (stmt != null){
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try {
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stmt.close();
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} catch (SQLException e) {
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e.printStackTrace();
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}
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}
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if (conn != null){
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try {
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conn.close();
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} catch (SQLException e) {
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e.printStackTrace();
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}
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}
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}
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/**
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* »ñÈ¡Á¬½Ó³Ø
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*/
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public static DataSource getDataSource(){
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return dataSource;
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}
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public static void main(String[] args) throws SQLException {
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//getDataSource();
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}
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}
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