当实例化Velocity时,我得到了这个错误(只发布了“由”-messages引起的):
java.lang.RuntimeException: Velocity could not be initialized!
Caused by: org.apache.velocity.exception.VelocityException: Error initializing log: Failed to initialize an instance of org.apache.velocity.runtime.log.Log4JLogChute with the current runtime c
昨天,我回答了How to check/uncheck all checkboxes based on the selection of one checkbox和我提出的一个堆叠溢出问题。但问题是,它只工作一次,但如果你点击它两次,它将无法工作。
$('#allcb').click(function(){
if ($('#allcb').is(':checked'))
{
$('.chk').each(function(){
$(this).attr('checked'