Java h:commandLink未按预期工作

我有一个问题，这反过来又引起了很多头痛。我需要动态创建链接到JSF actionListener的按钮/图像。代码如下：

HTML:

courseBean.course获取的是重写的toString，它返回以下内容：

@Override
public String toString() {

    return "<div class=\"carousel-feature\"> "
            + "<h:commandLink id=\"" + courseID + "\" actionListener=\"#{courseBean.getCourseSelected}\">"
            + "<img class=\"carousel-image\" src=\"Images/testButton.jpg\"/>"
            + "<span style=\"display:bloack; position:absolute; top:20px; bottom:20px; left:0; right:0; "
            + "background:white; background:rgba(255, 255, 255, 0.25);\">" + courseName + "</span>"
            + "</h:commandLink> "
            + "<div class=\"carousel-caption\"> "
            + "</div>"
            + "</div>";
}//end method toString

@覆盖
公共字符串toString（）{
返回“”
+ ""
+ ""
+“+courseName+”
+ " "
+ " "
+ ""
+ "";
}//结束方法toString

HTML呈现良好，图像显示在旋转木马中，但当单击它时，actionListener没有被调用，这就是问题所在

编辑：actionListener仅将courseID打印到控制台

---

感谢您花时间：）

这种方法是错误的，如果您选择“查看源代码”，您将看到

@Override
public String toString() {

    return "<div class=\"carousel-feature\"> "
            + "<h:commandLink id=\"" + courseID + "\" actionListener=\"#{courseBean.getCourseSelected}\">"
            + "<img class=\"carousel-image\" src=\"Images/testButton.jpg\"/>"
            + "<span style=\"display:bloack; position:absolute; top:20px; bottom:20px; left:0; right:0; "
            + "background:white; background:rgba(255, 255, 255, 0.25);\">" + courseName + "</span>"
            + "</h:commandLink> "
            + "<div class=\"carousel-caption\"> "
            + "</div>"
            + "</div>";
}//end method toString