如何避免在java自定义标记处理程序中生成html？ [英] How do i avoid generating html in a java custom tag handler?

问题描述

我能找到的每个例子都有标签处理程序java类生成html并用 out.print（someHTML）喷出来;

Every example i can find has the tag handler java class generating html and spewing it out with out.print(someHTML);

有没有办法在请求中包含一个jsp并添加属性？

Is there a way to include a jsp and add attributes to the request instead?

推荐答案

我没有'尝试过这个但是应该可以通过从Request对象获取RequestDispatcher ：

I haven't tried this but it should be possible by obtaining a RequestDispatcher from the Request object:

public int doStartTag() throws JspException {
    try {
        pageContext.setAttribute("title", "My Title");
        pageContext.getRequest().getRequestDispatcher("/WEB-INF/includes/header.jspf").include(pageContext.getRequest(), pageContext.getResponse());
    }
    catch (IOException e) {

    }
    return EVAL_BODY_INCLUDE;
}

PageContext还有包含方法，但这似乎只适用于静态文件，而不是jsps。

The PageContext also has an include method but that seems to only work for static files, not jsps.

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