我是 JSP 页面和 servlet 的新手,并且我在 servlet 中有一条更新语句。这里是:
PreparedStatement checkDB = (PreparedStatement) con.prepareStatement(
"UPDATE users set username=?,password=?,name=?,surname=?,phone=?,address," +
"email=? where username=?");
checkDB.setString(8,request.getParameter("tUserName"));
checkDB.setString(1,request.getParameter("tUserName"));
checkDB.setString(2,request.getParameter("tPassword"));
checkDB.setString(3,request.getParameter("tName"));
checkDB.setString(4,request.getParameter("tSurName"));
checkDB.setString(5,request.getParameter("tPhone"));
checkDB.setString(6,request.getParameter("tAddress"));
checkDB.setString(7,request.getParameter("tEmail"));
result= checkDB.executeUpdate();
当我执行它时,有一个错误提示 java.sql.SQLException: Parameter index out of range (8 > number of parameters, which is 7)。我怎样才能解决这个问题?
谢谢