模糊查询时“索引 1 超出范围”

SQL语句:select * from bookinfo where name like '%?%' or author like '%?%' or publication like '%?%'

从JSP获取到搜索值key，然后
prs.setString(1,key);
prs.setString(2,key);
prs.setString(3,key);
ResultSet rs = prs.executeQuery();
就报错“索引 1 超出范围”。求高手解救