jdbc调用mysql存储过程

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public static void updateMtBeginTimeIsSix() {
		Connection connection = null;
		CallableStatement cs = null;
		try {
			connection = DataSource.getInstance().getConnection();
			cs = connection.prepareCall("{call update_mt_begin_time_is_six()}");
			cs.execute();
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			try {
				if (connection != null) {
					connection.close();
				}
				if (cs != null) {
					cs.close();
				}
			} catch (Exception e2) {
				e2.printStackTrace();
			}

		}
	}

public static void SubjectOne(String beginDateStr, String endDateStr) {
		Connection connection = null;
		CallableStatement cs = null;
		try {
			connection = DataSource.getInstance().getConnection();
			cs = connection.prepareCall("{call queryDataForSubject1(?,?)}");
			cs.setInt(1, Integer.parseInt(beginDateStr));
			cs.setInt(2, Integer.parseInt(endDateStr));
			cs.execute();
			System.out.println(cs);
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			try {
				if (connection != null) {
					connection.close();
				}
				if (cs != null) {
					cs.close();
				}
			} catch (Exception e2) {
				e2.printStackTrace();
			}
		}
	}

数据源c3p0

public class DataSource {

    private static DataSource datasource;
    private ComboPooledDataSource cpds;

    private DataSource() throws IOException, SQLException, PropertyVetoException {
        cpds = new ComboPooledDataSource();
        cpds.setDriverClass("com.mysql.jdbc.Driver"); 
        cpds.setJdbcUrl("jdbc:mysql://localhost:3306/stopsix_two_phase");
        cpds.setUser("root");
        cpds.setPassword("root");
        cpds.setMinPoolSize(5);
        cpds.setAcquireIncrement(5); 
        cpds.setMaxPoolSize(20); 
    }

    public static DataSource getInstance() throws IOException, SQLException, PropertyVetoException { 
        if (datasource == null) {
            datasource = new DataSource();
            return datasource;
        } else {
            return datasource;
        }
    }

    public Connection getConnection() throws SQLException {
        return this.cpds.getConnection();
    }

}