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📄 node_delete.jsp

📁 用JAVA实现的对动态树状信息的管理。操作员可以通过IE浏览器查看整个树形结构信息
💻 JSP
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🔍 
<%@ page contentType="text/html; charset=gb2312" language="java" import="java.sql.*" errorPage="" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<%@ page import="com.socialite.bizlogic.util.CookieTool,
                 com.socialite.bizlogic.util.Char,
                 com.socialite.bizlogic.client.BizLogicClient,
                 com.socialite.bizlogic.util.XMLObject,
				 com.socialite.bizlogic.tree.TreeNodeObject,
				 com.socialite.bizlogic.tree.TreeObject,
				 com.socialite.bizlogic.tree.TreeIterator,
				 javax.swing.tree.DefaultTreeModel,
				 javax.swing.tree.DefaultMutableTreeNode"%>
<%
 // 如果操作员没有登录，则转到登录页面
    String op_id = com.socialite.bizlogic.util.CookieTool.getCookieValue(request.getCookies(),"op_id");
    if(op_id==null)
    {
        response.sendRedirect("/login/logout.jsp");
        return;
    }  else if (op_id.equalsIgnoreCase("-1") ){
        response.sendRedirect("/login/logout.jsp");
        return;
    }
	
	if(op_id==null||false)//check privilege here
    {
        response.sendRedirect("/login/logout.jsp");
        return;
    }
	
	 request.setCharacterEncoding("gb2312");
	 
	 String node_id=request.getParameter("node_id");
	 
	 

	 if(node_id==null){
	 	response.sendRedirect("tree_show.jsp");
        return;
	 }
	StringBuffer xml=new StringBuffer("<bizlogic><logic_name>com.socialite.bizlogic.businesslogic.treemanagementlogic.TreeManagementBusinessLogic</logic_name>");
    xml.append(Char.LINE_SEPARATOR);
    xml.append("<requesttype>DELETE_TREE_NODE</requesttype>");
    xml.append(Char.LINE_SEPARATOR);
    xml.append("<requestparameter>");
	xml.append("<node_id>" + node_id + "</node_id>" + Char.LINE_SEPARATOR);
	xml.append("</requestparameter>");
    xml.append(Char.LINE_SEPARATOR);
    xml.append("</bizlogic>");
    xml.append(Char.LINE_SEPARATOR);

    BizLogicClient hc=new BizLogicClient();
    String xmlResult=hc.send(xml.toString());

    XMLObject xmlObj = new XMLObject(xmlResult,0);	
    String result=xmlObj.getValue("bizlogic.resultcode");

    if("0".equals(result)){
		//操作成功，更新application树中节点信息
	   TreeObject tObject=null;
	   TreeNodeObject node=null;
		
	   tObject=(TreeObject)application.getAttribute("tree");
	
	  //得到节点信息
	   DefaultMutableTreeNode dfNode=tObject.getNode(node_id);
	   node=(TreeNodeObject)dfNode.getUserObject();
	   
	   tObject.deleteNode(node);
	
	}
	 
	 
%>

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>树型节点管理——删除节点</title>
</head>

<body>
<table width="916" height="351" border="0.2">
  <%
  if("0".equals(result)){
  %>
  <tr>
    <td height="169"><div align="center">
      <p>您的操作成功</p>
      <p>请<a href="tree_show.jsp">返回主页</a></p>
    </div></td>
  </tr>
  <%
  }else{
  %>
  <tr>
    <td><div align="center">操作失败，请<a href="tree_show.jsp">重试</a></div></td>
  </tr>
  <%
  }
  %>
</table>
</body>
</html>

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