import java.sql.Timestamp; //导入方法依赖的package包/类

/**

* Tests fix for BUG#5874, timezone correction goes in wrong 'direction' (when useTimezone=true and server timezone differs from client timezone).

*

* @throws Exception

* if the test fails.

*/

public void testBug5874() throws Exception {

TimeZone defaultTimezone = TimeZone.getDefault();

try {

String clientTimezoneName = "America/Los_Angeles";

String serverTimezoneName = "America/Chicago";

TimeZone.setDefault(TimeZone.getTimeZone(clientTimezoneName));

long clientTimezoneOffsetMillis = TimeZone.getDefault().getRawOffset();

long serverTimezoneOffsetMillis = TimeZone.getTimeZone(serverTimezoneName).getRawOffset();

long offsetDifference = clientTimezoneOffsetMillis - serverTimezoneOffsetMillis;

SimpleDateFormat timestampFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

SimpleDateFormat timeFormat = new SimpleDateFormat("HH:mm:ss");

long pointInTime = timestampFormat.parse("2004-10-04 09:19:00").getTime();

Properties props = new Properties();

props.put("useTimezone", "true");

props.put("serverTimezone", serverTimezoneName);

props.put("cacheDefaultTimezone", "false");

Connection tzConn = getConnectionWithProps(props);

Statement tzStmt = tzConn.createStatement();

createTable("testBug5874", "(tstamp DATETIME, t TIME)");

PreparedStatement tsPstmt = tzConn.prepareStatement("INSERT INTO testBug5874 VALUES (?, ?)");

tsPstmt.setTimestamp(1, new Timestamp(pointInTime));

tsPstmt.setTime(2, new Time(pointInTime));

tsPstmt.executeUpdate();

this.rs = tzStmt.executeQuery("SELECT * from testBug5874");

while (this.rs.next()) { // Driver now converts/checks DATE/TIME/TIMESTAMP/DATETIME types when calling getString()...

String retrTimestampString = new String(this.rs.getBytes(1));

Timestamp retrTimestamp = this.rs.getTimestamp(1);

java.util.Date timestampOnServer = timestampFormat.parse(retrTimestampString);

long retrievedOffsetForTimestamp = retrTimestamp.getTime() - timestampOnServer.getTime();

assertEquals("Original timestamp and timestamp retrieved using client timezone are not the same", offsetDifference,

retrievedOffsetForTimestamp);

String retrTimeString = new String(this.rs.getBytes(2));

Time retrTime = this.rs.getTime(2);

java.util.Date timeOnServerAsDate = timeFormat.parse(retrTimeString);

Time timeOnServer = new Time(timeOnServerAsDate.getTime());

long retrievedOffsetForTime = retrTime.getTime() - timeOnServer.getTime();

assertEquals("Original time and time retrieved using client timezone are not the same", offsetDifference, retrievedOffsetForTime);

}

tzConn.close();

} finally {

TimeZone.setDefault(defaultTimezone);

}

}