forjs循环在jsp中不显示任何输出

这根本不对。。。您正在做这件事。。。在此之前，您必须阅读servlet jsp。

为您的项目创建一个servlet，并将数据从servlet传递到jsp，然后只有jsp可以从那里访问数据

首先尝试servlet jsp示例。

public class Login extends HttpServlet {    private static final long serialVersionUID = 1L;    public Login() {        super();    }    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {//right your pre here to get data from jstlClass and pass it to the jsp in request      request.setAttribute("",""); request.getRequestDispatcher("/FirstJSP.jsp").forward(request, response);  }protected void doget(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {        }    }    }}

然后您可以在那里访问参数

试试这个例子 http://www.java-
samples.com/showtutorial.php?tutorialid=552