判断字符串为空方法(括号为注释,StringUtils的学习)
StringUtils.isNotBlank("字符串")
( Checks if a CharSequence is not empty (""), not null and not whitespace only.
StringUtils.isNotBlank(null) = false
StringUtils.isNotBlank("") = false
StringUtils.isNotBlank(" ") = false
StringUtils.isNotBlank("bob") = true
StringUtils.isNotBlank(" bob ") = true )
瞅谁谁怀孕,瞪谁谁流产~。~