程序包 Main.cases

类 DBHelper

java.lang.Object

Main.cases.DBHelper

public class DBHelper
extends Object

构造器概要

构造器

构造器	说明
DBHelper()

方法概要

修饰符和类型	方法	说明
void	close()
int	countTuple(String tableName)
void	createTable(String sql)
void	dropTable(String tableName)
Connection	getConn()
String	getDBName()
void	launch()
ResultSet	selectAll(String tableName)
void	shutDown()
void	truncateTable(String tableName)

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

DBHelper

public DBHelper()

方法详细资料

getDBName

public String getDBName()

getConn

public Connection getConn()

createTable

public void createTable(String sql)
                 throws SQLException

抛出:

SQLException

truncateTable

public void truncateTable(String tableName)

dropTable

public void dropTable(String tableName)
               throws SQLException

抛出:

SQLException

countTuple

public int countTuple(String tableName)
               throws SQLException

抛出:

SQLException

selectAll

public ResultSet selectAll(String tableName)
                    throws SQLException

抛出:

SQLException

shutDown

public void shutDown()
              throws IOException

抛出:

IOException

launch

public void launch()
            throws IOException

抛出:

IOException

close

public void close()