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| import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.apache.commons.dbutils.QueryRunner;
public class DaoBase {
public Connection getConnection() throws SQLException {
return MyDataSource.getInstance().getDatasource().getConnection();
}
public List<Map<String, Object>> find(String sql) throws SQLException {
List<Map<String, Object>> datas = new ArrayList<Map<String, Object>>();
Connection con = null;
Statement stmt = null;
ResultSet rs = null;
try {
con = getConnection();
stmt = con.createStatement();
rs = stmt.executeQuery(sql);
// ignore...
} catch (SQLException e) {
throw e;
} finally {
close(rs);
close(stmt);
close(con);
}
return datas;
}
public void close(ResultSet rs) {
if (rs != null) {
try {
rs.close();
} catch (SQLException e) {
}
}
}
public void close(Statement stmt) {
if (stmt != null) {
try {
stmt.close();
} catch (SQLException e) {
}
}
}
public void close(Connection con) {
if (con != null) {
try {
con.close();
} catch (SQLException e) {
}
}
}
}
|
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