Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=os&infra=stock32 error was
14: curl#6 - "Could not resolve host: mirrorlist.centos.org; Unknown error"
 
One of the configured repositories failed (Unknown),
and yum doesn't have enough cached data to continue. At this point the only
safe thing yum can do is fail. There are a few ways to work "fix" this:
 
 1. Contact the upstream for the repository and get them to fix the problem.
 
 2. Reconfigure the baseurl/etc. for the repository, to point to a working
    upstream. This is most often useful if you are using a newer
    distribution release than is supported by the repository (and the
    packages for the previous distribution release still work).
 
 3. Disable the repository, so yum won't use it by default. Yum will then
    just ignore the repository until you permanently enable it again or use
    --enablerepo for temporary usage:
 
        yum-config-manager --disable <repoid>
 
 4. Configure the failing repository to be skipped, if it is unavailable.
    Note that yum will try to contact the repo. when it runs most commands,
    so will have to try and fail each time (and thus. yum will be be much
    slower). If it is a very temporary problem though, this is often a nice
    compromise:
 
        yum-config-manager --save --setopt=<repoid>.skip_if_unavailable=true

id|user_id|name   |
--|-------|-------|
 1|      1|用户1的请假1|
 2|      2|用户2的请假1|
 3|      3|用户3的请假1|
 4|      2|用户2的请假2|
 5|      2|用户2的请假3|
 6|      1|用户1的请假2|

select ROW_NUMBER() over(order by user_id) rowNum, id, user_id, name from leave

rowNum|id|user_id|name   |
------|--|-------|-------|
     1| 1|      1|用户1的请假1|
     2| 6|      1|用户1的请假2|
     3| 2|      2|用户2的请假1|
     4| 4|      2|用户2的请假2|
     5| 5|      2|用户2的请假3|
     6| 3|      3|用户3的请假1|

@Override
public <T> T execute(StatementCallback<T> action) throws DataAccessException {
	Assert.notNull(action, "Callback object must not be null");

	Connection con = DataSourceUtils.getConnection(obtainDataSource());
	Statement stmt = null;
	try {
		stmt = con.createStatement();
		applyStatementSettings(stmt);
		// 重写 doInStatement 方法时要加上查询和处理返回值的操作
		T result = action.doInStatement(stmt);
		handleWarnings(stmt);
		return result;
	}
	catch (SQLException ex) {
		// Release Connection early, to avoid potential connection pool deadlock
		// in the case when the exception translator hasn't been initialized yet.
		String sql = getSql(action);
		JdbcUtils.closeStatement(stmt);
		stmt = null;
		DataSourceUtils.releaseConnection(con, getDataSource());
		con = null;
		throw translateException("StatementCallback", sql, ex);
	}
	finally {
		JdbcUtils.closeStatement(stmt);
		DataSourceUtils.releaseConnection(con, getDataSource());
	}
}

The native API dll was not found (C:\Windows\system32\WinHvPlatform.dll) (VERR_NEM_NOT_AVAILABLE).
VT-x is not available (VERR_VMX_NO_VMX).

返回 代码: 
E_FAIL (0x80004005)
组件: 
ConsoleWrap
界面: 
IConsole {872da645-4a9b-1727-bee2-5585105b9eed}

...
...
... 
VT-x is not available (VERR_VMX_NO_VMX)

dism.exe /Online /Disable-Feature:Microsoft-Hyper-V

List<T> query(String sql, RowMapper<T> rowMapper, Object... args)

void query(String sql, Object[] args, RowCallbackHandler rch)

T query(String sql, ResultSetExtractor<T> rse, Object... args)

Caused by: java.sql.SQLException: No current row in the ResultSet.

D:\Program Files\LibreOffice\program>soffice.bin --headless --invisible --convert-to pdf c:\Users\wu\xxx.doc --outdir c:\Users\wu