public class JdbcUtils extends Object
| 构造器和说明 |
|---|
JdbcUtils() |
| 限定符和类型 | 方法和说明 |
|---|---|
static void |
closeConnection(Connection conn)
关闭连接
|
static void |
closeResultSet(ResultSet rs)
关闭结果集
|
static void |
closeStatement(Statement stmt)
关闭语句
|
static Connection |
getConnection(DataSource ds)
从数据源中获得一个连接
|
static Object |
getResultSetValue(ResultSet rs,
int index,
Class requiredType) |
static boolean |
isSingleColumnClass(Class clazz)
返回是否是单列类型
|
static String |
lookupColumnName(ResultSetMetaData resultSetMetaData,
int columnIndex)
返回列序号对应的列名字
|
static void |
setParameterValue(PreparedStatement ps,
int index,
Object value) |
public static Connection getConnection(DataSource ds)
ds - public static void closeConnection(Connection conn)
conn - public static void closeStatement(Statement stmt)
stmt - public static void closeResultSet(ResultSet rs)
rs - public static Object getResultSetValue(ResultSet rs, int index, Class requiredType) throws SQLException
SQLExceptionpublic static void setParameterValue(PreparedStatement ps, int index, Object value) throws SQLException
SQLExceptionpublic static boolean isSingleColumnClass(Class clazz)
clazz - public static String lookupColumnName(ResultSetMetaData resultSetMetaData, int columnIndex) throws SQLException
resultSetMetaData - columnIndex - SQLExceptionCopyright © 2014. All rights reserved.