ExtJs动态树

html:

tree

s2:

request.setCharacterEncoding(\ response.setCharacterEncoding(\

// 获得node参数，对应的是正在展开的节点id String node = request.getParameter(\ System.out.println(node);

List list=ld.getLocation(Integer.parseInt(node)); JSONArray ja=JSONArray.fromObject(list); String sf=ja.toString(); System.out.println(sf);

response.getWriter().print(sf);

dao:

Connection con=null;

PreparedStatement stmt=null; ResultSet rs=null;

List list=new ArrayList(); try {

con=DbUtil.getConnection();

stmt=con.prepareStatement(\ stmt.setInt(1, parentid); rs=stmt.executeQuery();

while(rs.next()){ Node n=new Node(); n.setId(rs.getInt(\ n.setText(rs.getString(\

if(rs.getInt(\ n.setLeaf(true); }else{

n.setLeaf(false); }

n.setChecked(false); list.add(n); }

return list;

} catch (Exception e) { e.printStackTrace(); }finally{ try { rs.close();

} catch (SQLException e) {

e.printStackTrace(); } try {

stmt.close();

} catch (SQLException e) { e.printStackTrace(); } try {

con.close();

} catch (SQLException e) { e.printStackTrace();

} }

return null;