JSP里保存数组的错误，求救
String lid = request.getParameter( "LID ");

String slist [] = new String [200];

int i = 0;

slist = (String []) session.getAttribute( "shoplist ");

slist [i] = lid;（这行报错）

session.setAttribute( "shoplist ",slist);

为什么啊？？

[解决办法]
slist = lid;