网络拓扑图生成(js版 IE&FF兼容)

package com.ncs.topology.test; import java.io.IOException; import javax.servlet.ServletException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import net.sf.json.JSONObject; import com.ncs.topology.Node; import com.ncs.topology.NodeTree; public class JsonSrc extends javax.servlet.http.HttpServlet implements javax.servlet.Servlet { static final long serialVersionUID = 1L; public JsonSrc() { super(); } protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doPost(request,response); } protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { NodeTree nt=new NodeTree(); Node n1=new Node(); n1.setId(1); n1.setFatherId(0); n1.setName("根节点"); n1.setState(0); n1.setUrl("images/topic.gif"); nt.getNodeList().add(n1); //-------------------------------------- Node n2=new Node(); n2.setId(2); n2.setFatherId(1); n2.setName("二级节点"); n2.setState(0); n2.setUrl("images/nm.gif"); nt.getNodeList().add(n2); //-------------------------------------- Node n3=new Node(); n3.setId(3); n3.setFatherId(1); n3.setName("二级节点"); n3.setState(0); n3.setUrl("images/nm.gif"); nt.getNodeList().add(n3); //-------------------------------------- Node n4=new Node(); n4.setId(4); n4.setFatherId(2); n4.setName("三级节点"); n4.setState(0); n4.setUrl("images/sensor.gif"); nt.getNodeList().add(n4); //-------------------------------------- Node n5=new Node(); n5.setId(5); n5.setFatherId(2); n5.setName("三级节点"); n5.setState(1); n5.setUrl("images/sensor.gif"); nt.getNodeList().add(n5); //------------------------------------------------ response.setCharacterEncoding("UTF-8"); response.setContentType("application/json"); response.getWriter().print(JSONObject.fromObject(nt).toString()); } }