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java.sql.Connection

java.sql.Connection是数据库连接接口。

表 1 对java.sql.Connection接口的支持情况

方法名

返回值类型

支持JDBC 4

abort(Executor executor)

void

Yes

clearWarnings()

void

Yes

close()

void

Yes

commit()

void

Yes

createArrayOf​(String typeName, Object[] elements)

Array

Yes

createBlob()

Blob

Yes

createClob()

Clob

Yes

createSQLXML()

SQLXML

Yes

createStatement()

Statement

Yes

createStatement​(int resultSetType, int resultSetConcurrency)

Statement

Yes

createStatement​(int resultSetType, int resultSetConcurrency, int resultSetHoldability)

Statement

Yes

getAutoCommit()

Boolean

Yes

getCatalog()

String

Yes

getClientInfo()

Properties

Yes

getClientInfo(String name)

String

Yes

getHoldability()

int

Yes

getMetaData()

DatabaseMetaData

Yes

getNetworkTimeout()

int

Yes

getSchema()

String

Yes

getTransactionIsolation()

int

Yes

getTypeMap()

Map<String,​Class<?>>

Yes

getWarnings()

SQLWarning

Yes

isClosed()

Boolean

Yes

isReadOnly()

Boolean

Yes

isValid​(int timeout)

boolean

Yes

nativeSQL​(String sql)

String

Yes

prepareCall​(String sql)

CallableStatement

Yes

prepareCall​(String sql, int resultSetType, int resultSetConcurrency)

CallableStatement

Yes

prepareCall​(String sql, int resultSetType, int resultSetConcurrency, int resultSetHoldability)

CallableStatement

Yes

prepareStatement(String sql)

PreparedStatement

Yes

prepareStatement​(String sql, int autoGeneratedKeys)

PreparedStatement

Yes

prepareStatement​(String sql, int[] columnIndexes)

PreparedStatement

Yes

prepareStatement​(String sql, int resultSetType, int resultSetConcurrency)

PreparedStatement

Yes

prepareStatement​(String sql, int resultSetType, int resultSetConcurrency, int resultSetHoldability)

PreparedStatement

Yes

prepareStatement​(String sql, String[] columnNames)

PreparedStatement

Yes

releaseSavepoint​(Savepoint savepoint)

void

Yes

rollback()

void

Yes

rollback​(Savepoint savepoint)

void

Yes

setAutoCommit(boolean autoCommit)

void

Yes

setClientInfo(Properties properties)

void

Yes

setClientInfo(String name,String value)

void

Yes

setHoldability​(int holdability)

void

Yes

setNetworkTimeout​(Executor executor, int milliseconds)

void

Yes

setReadOnly​(boolean readOnly)

void

Yes

setSavepoint()

Savepoint

Yes

setSavepoint​(String name)

Savepoint

Yes

setSchema​(String schema)

void

Yes

setTransactionIsolation​(int level)

void

Yes

setTypeMap​(Map<String,​Class<?>> map)

void

Yes

须知: 接口内部默认使用自动提交模式,若通过setAutoCommit(false)关闭自动提交,将会导致后面执行的语句都受到显式事务包裹,数据库中不支持事务中执行的语句不能在此模式下执行。

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