0
我已經使用標準的遞歸樹代碼從DB填充樹,但我得到這個錯誤和頁面不打開。Primefaces Tree StackOverFlow異常
Caused by: java.lang.StackOverflowError
at org.primefaces.model.TreeNodeChildren.add(TreeNodeChildren.java:40)
at org.primefaces.model.TreeNodeChildren.add(TreeNodeChildren.java:22)
at org.primefaces.model.DefaultTreeNode.<init>(DefaultTreeNode.java:59)
at com.mesutemre.kitapislemleri.KitapListeTreeBean.createTree(KitapListeTreeBean.java:55)
我在maneged Bean中使用過這些代碼;
private static final long serialVersionUID = 1L;
@EJB
private KitaplarFacade service;
TreeNode root;
TreeNode yazarAd;
private static List<Kitaplar> entityList = new ArrayList<Kitaplar>();
private static List<Kitaplar> araEntitylist;
private Kitaplar kitap;
private List<Kitaplar> subEntitylist;
public KitapListeTreeBean() {
root = new DefaultTreeNode("Root", null);
yazarAd = new DefaultTreeNode("", root);
}
@PostConstruct
public void initialize() {
entityList = service.findAllKitaplar();
createTree(entityList, 10, yazarAd);
}
private void createTree(List<Kitaplar> liste, int id, TreeNode node) {
subEntitylist = subKitaplar(id);
for (Kitaplar k : subEntitylist) {
TreeNode childNode = new DefaultTreeNode(k.getKitapad(), node);
createTree(subEntitylist, k.getKitapID(), childNode);
}
}
public static List<Kitaplar> subKitaplar(int i) {
araEntitylist = new ArrayList<Kitaplar>();
for (Kitaplar k : getEntityList()) {
if (k.getKitapID() == i) {
araEntitylist.add(k);
}
}
return araEntitylist;
}
public static List<Kitaplar> getEntityList() {
return entityList;
}
public static void setEntityList(List<Kitaplar> entityList) {
KitapListeTreeBean.entityList = entityList;
}
public TreeNode getRoot() {
return root;
}
public void setRoot(TreeNode root) {
this.root = root;
}
}
爲了得到我使用JPA的數據。爲什麼我得到這個錯誤?是關於服務器設置還是我的代碼?
感謝。現在作者和書名一一呈現。我想展示一位作者及其作品 – emreturka 2014-10-06 09:08:02