将JSP转换为JSTL

问题描述

我是JSP的初学者，需要一些帮助.我从我的第一个JSP页面中的这段代码开始了

I am a beginner in JSP and need some help. I started out with this bit of code inside one of my first JSP pages

<%
    LoginService user = new LoginService();
%>

Hello <%=user.getUserID() %>!

工作正常.我正确导入了LoginService类，并且那段代码起作用了！但是现在我正在学习JSTL，并尝试将以上内容转换为JSTL标签.所以我右脚下车，但需要一些帮助.到目前为止，我有

And works just fine. I imported the LoginService class correctly and that bit of code works! But now I am learning JSTL and trying to convert the above to JSTL tags. So I got off on the right foot but need some help finishing. So far I have

<jsp:useBean id="user" class="org.test.LoginService"></jsp:useBean>

但是我在将最后一个Hello行转换为JSTL标签时遇到了麻烦！我不知道如何像在JSP标记中那样引用方法getUserID().我自己已经走了这么远，但需要一些帮助才能完成！任何回应将不胜感激！

But I'm having trouble converting that last Hello line into a JSTL tag! I can't figure out how to reference the method getUserID() like I did in the JSP tag. I've come this far on my own but need some help finishing up! Any response would be greatly appreciated!

推荐答案

您可以使用:

<jsp:getProperty name="user" property="userID" /> 

但最好使用:

${user.userID}

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