如何從數據庫中生成動態tree.properties文件並將其傳遞給richfaces的樹結構

Question

如何從數據庫生成動態tree.properties文件並將其傳遞給richfaces的樹結構。

Answer 1

尼斯鏈路4實施Lucene的（休眠搜索）的przemek TreeManager.java

enter code : public class TreeManager implements Serializable{ 
@ManagedProperty(value="#{BuyerServiceBean}") 
BuyerServiceBean buyerServiceBean; 

public BuyerServiceBean getBuyerServiceBean() { 
    return buyerServiceBean; 
} 

public void setBuyerServiceBean(BuyerServiceBean buyerServiceBean) { 
    this.buyerServiceBean = buyerServiceBean; 
} 
private TreeNode<String> root = null; 
private String nodeTitle; 
private String selectedCategory; 

public TreeManager() {} 

public TreeNode getRoot() { 
    if (root == null) { 
     List<DepartmentMasterDataBean> c = new ArrayList<DepartmentMasterDataBean>(); 
     c = buyerServiceBean.treeList(0); 
     TreeModel tm = null; 
     tm = new TreeModel(c); 
     root = tm.getRoot(); 
    } 
    return root; 
} 

public void processSelection(NodeSelectedEvent event) { 
    HtmlTree tree = (HtmlTree) event.getComponent(); 
    selectedCategory = (String)tree.getRowData(); 
    String test = tree.getRowKey().toString(); 
    Integer id = Integer.parseInt(test.substring(test.lastIndexOf(":")+1, test.length())); 
    buyerServiceBean.getDepartmentMasterBindBean().setParentdeptid(id); 
    setNodeTitle(selectedCategory); 
} 

public String getNodeTitle() { 
    return nodeTitle; 
} 

public void setNodeTitle(String nodeTitle) { 
    this.nodeTitle = nodeTitle; 
} 

public void setRoot(TreeNode<String> root) { 
    this.root = root; 
} 

public String getSelectedCategory() { 
    return selectedCategory; 
} 

public void setSelectedCategory(String selectedCategory) { 
    this.selectedCategory = selectedCategory; 
} 

}

TreeModel.java

enter code here : public class TreeModel { 


private TreeNode<String> root; 

public TreeModel(List<DepartmentMasterDataBean> c) { 
    root = new TreeNodeImpl<String>(); 
    root.setParent(null); 
    root.setData("Kategorie"); 
    createChildren(root, c); 
} 

private void createChildren(TreeNode<String> r, List<DepartmentMasterDataBean> ch) { 
    for (DepartmentMasterDataBean c : ch) { 
     TreeNode<String> nodeImpl = new TreeNodeImpl<String>(); 
     nodeImpl.setData(c.getDeptname()); 
     r.addChild(c.getDeptid(), nodeImpl);    
     if (c.getChildren() != null) { 
      createChildren(nodeImpl, c.getChildren()); 
     } 
    } 
} 

public TreeNode getRoot() { 
    return root; 
} 

}

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使用在實施例

迭代的重要方法

enter code here : public List<DepartmentMasterDataBean> treeList(Integer deptid) { 
    List<DepartmentMasterDataBean> dataBeans = new ArrayList<DepartmentMasterDataBean>(); 
    List<DepartmentMaster> dms = departmentMasterService.getDepartmentList("parentdeptid", Operation_enum.EQ, deptid); 
    for (DepartmentMaster departmentMaster : dms) { 
     dataBeans.add(_toDepartmentMasterDataBean(departmentMaster)); 
    } 
    return dataBeans; 
} 

public DepartmentMasterDataBean _toDepartmentMasterDataBean(DepartmentMaster departmentMaster) { 
    DepartmentMasterDataBean dmdb = new DepartmentMasterDataBean(); 
    List<DepartmentMasterDataBean> list1 = new ArrayList<DepartmentMasterDataBean>(); 
    dmdb.setDeptid(departmentMaster.getDeptid()); 
    dmdb.setDeptname(departmentMaster.getDeptname()); 
    dmdb.setParentdeptid(departmentMaster.getParentdeptid()); 
    dmdb.setAddress(departmentMaster.getAddress()); 
    dmdb.setDatentime(departmentMaster.getDatentime()); 
    dmdb.setPhone(departmentMaster.getPhone()); 
    List<DepartmentMaster> dms = new ArrayList<DepartmentMaster>(); 
    dms = departmentMasterService.getDepartmentList("parentdeptid", Operation_enum.EQ, departmentMaster.getDeptid()); 
    for (DepartmentMaster departmentMaster1 : dms) { 
     list1.add(_toDepartmentMasterDataBean(departmentMaster1)); 
    } 
    dmdb.setChildren(list1); 
    return dmdb; 
}