[Java] 纯文本查看 复制代码
package cn.itheima.jdbc.domain;
import com.alibaba.druid.pool.DruidDataSourceFactory;
import javax.sql.DataSource;
import java.io.IOException;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Properties;
public class JDBCUtils {
private static DataSource ds;
static {
try {
Properties pro = new Properties();
pro.load(JDBCUtils.class.getClassLoader().getResourceAsStream("druid.properties"));
ds = DruidDataSourceFactory.createDataSource(pro);
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
}
public static Connection getCoonnection() throws SQLException {
return ds.getConnection();
}
public static void close(Statement stat,Connection conn){
if (stat != null){
try {
stat.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
if (conn != null){
try {
conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
public static void close(ResultSet re,Statement stat, Connection conn){
if (re != null){
try {
re.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
if (stat != null){
try {
stat.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
if (conn != null){
try {
conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
public static DataSource getDataSource(){
return ds;
}
}