数据库部门数据生成xml树

部门bean主要代码

    private String deptname;//部门名称
    private String deptcode;//部门编码
    private String fdeptcode;//上级部门编码
    private String isleaf;//是否为叶子部门
    private List<Dep> children;//子部门集合
    private String id;//部门id
    //设置如何获取子部门
    public void setChildren(String fdeptcode) {
        if(isleaf.equals("1")){
        }else{
            List<Dep> listDep=new ArrayList<Dep>();
            DbConn db=new DbConn();
            ResultSet rst=null;
            
            String sql1="select deptcode from comdept where fdeptcode=‘"+fdeptcode+"‘";
            try {
                rst=db.executeQuery(sql1);
                while(rst.next()){
                    String depcode=rst.getString("deptcode");
                    //调用构造方法如果dep还有子部门也会放到dep下
                    Dep dep=new Dep(depcode);
                    listDep.add(dep);
                }
            } catch (SQLException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            this.children = listDep;
        }

    }
    //构造方法
    public Dep(String deptcode){
        this.deptcode=deptcode;
        setAll(deptcode);
        setChildren(deptcode);
    }

向xml写树形目录代码

public class WriteToXml {
    static List<Dep> listdep=new Dep("0000"); //0000为部门根
    Element  root=DocumentHelper.createElement("Dep");
    Document doc=DocumentHelper.createDocument();
    public  void Write(List<Dep> listdep,Element element){

            for(Dep dep:listdep){
                //添加节点名字为部门名字
                Element menuElement = element.addElement(dep.getDeptname());
                //向节点添加属性deptcode，value为部门id
                Attribute att=DocumentHelper.createAttribute(menuElement, "deptcode",dep.getDeptcode());
                menuElement.add(att);
                if(dep.getChildren()!=null&&dep.getChildren().size()>0){
                    Write(dep.getChildren(),menuElement); 
                }
            }
    }
    public void WriteAll(String path){
        //全部节点写到root节点
        Write(listdep,root);
        try{

            XMLWriter xmlwriter=new XMLWriter(new FileWriter(new File(path)));
            doc.add(root);
            xmlwriter.write(doc);
            xmlwriter.close();
        }catch(IOException e){
            e.printStackTrace();
        }
    }
    public static void main(String[] args) {
        WriteToXml t=new WriteToXml();
        t.WriteAll("E://test.xml");
    }
}

好不容易终于大概知道xml是怎么写的了...下一步再把xml形成html的树形目录。