Today test, a strange problem
$ .Ajax transmission js array, spring receiving this array, the emergence of a strange phenomenon, if only one element of the array, and the last element of a character string that is a comma, ending with the words,
spring will automatically remove the comma, not an error. . . .
If the array contains two or more, it can display this comma normal. . . .
If it were the other end of the symbols can be used normally! ! ! !
My guess is ajax or spring to deal with the data, an element, as a default string, resulting in the extra comma separators removed
I do not know why, Baidu did not find information on this, and this record