Question

我是JSF的新手，所以这是我的第一个项目。我的IDE是netbeans 7.0.1，Mojarra 2.1.1和primefaces 2.2.1

我通过http://www.primefaces.org/showcase/ui/tree.jsf使用了树例子虽然我设法使用素数的其他faclet（例如p：按钮）树不适合我（空白屏幕）有人可以请你解释我做错了什么吗？

谢谢

 <?xml version='1.0' encoding='UTF-8' ?>
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0    Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
  <html xmlns="http://www.w3.org/1999/xhtml"
  xmlns:p="http://primefaces.prime.com.tr/ui"
  xmlns:h="http://java.sun.com/jsf/html"
  xmlns:f="http://java.sun.com/jsf/core">
<f:view contentType="text/html"> 
<h:head>
    <title>Facelet Title</title>
</h:head>
<h:body>
    <h:form>
        <p:tree value="#{treeBean.root}" var="node">
            <p:treeNode>
                <h:outputText value="#{node}" /> 
            </p:treeNode>
        </p:tree>
    </h:form>
</h:body>
</f:view>

 package org.primefaces.examples.view;

import javax.faces.bean.SessionScoped;
import org.primefaces.model.TreeNode;
import org.primefaces.model.DefaultTreeNode;


public class TreeBean {

private TreeNode root;

public TreeBean() {
    root = new DefaultTreeNode("Root", null);
    TreeNode node0 = new DefaultTreeNode("Node 0", root);
    TreeNode node1 = new DefaultTreeNode("Node 1", root);
    TreeNode node2 = new DefaultTreeNode("Node 2", root);

    TreeNode node00 = new DefaultTreeNode("Node 0.0", node0);
    TreeNode node01 = new DefaultTreeNode("Node 0.1", node0);

    TreeNode node10 = new DefaultTreeNode("Node 1.0", node1);
    TreeNode node11 = new DefaultTreeNode("Node 1.1", node1);

    TreeNode node000 = new DefaultTreeNode("Node 0.0.0", node00);
    TreeNode node001 = new DefaultTreeNode("Node 0.0.1", node00);
    TreeNode node010 = new DefaultTreeNode("Node 0.1.0", node01);

    TreeNode node100 = new DefaultTreeNode("Node 1.0.0", node10);
}

public TreeNode getRoot() {
    return root;
}

}

Answer 1

我认为这是因为你的TreeBean类中没有@ManagedBean注释

无法查看primefaces树

1 个答案: