📄 tree_jsp.java

📁 dojo与json创建无限级树的时候,当在父结点下添加了一个新结点,我怎么让父亲结点重新调用json加载一下子结点内容.
💻 JAVA
字号:
package org.apache.jsp;

import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.jsp.*;

public final class tree_jsp extends org.apache.jasper.runtime.HttpJspBase
    implements org.apache.jasper.runtime.JspSourceDependent {

  private static java.util.List _jspx_dependants;

  public Object getDependants() {
    return _jspx_dependants;
  }

  public void _jspService(HttpServletRequest request, HttpServletResponse response)
        throws java.io.IOException, ServletException {

    JspFactory _jspxFactory = null;
    PageContext pageContext = null;
    HttpSession session = null;
    ServletContext application = null;
    ServletConfig config = null;
    JspWriter out = null;
    Object page = this;
    JspWriter _jspx_out = null;
    PageContext _jspx_page_context = null;


    try {
      _jspxFactory = JspFactory.getDefaultFactory();
      response.setContentType("text/html; charset=gb2312");
      pageContext = _jspxFactory.getPageContext(this, request, response,
      			null, true, 8192, true);
      _jspx_page_context = pageContext;
      application = pageContext.getServletContext();
      config = pageContext.getServletConfig();
      session = pageContext.getSession();
      out = pageContext.getOut();
      _jspx_out = out;

      out.write("\r\n");
      out.write("<html>\r\n");
      out.write("<head>\r\n");
      out.write("  <title>dojotree</title>\r\n");
      out.write("\r\n");
      out.write("   <style type=\"text/css\" media=\"screen\">\r\n");
      out.write("       @import url( style.css );\r\n");
      out.write("   </style>\r\n");
      out.write("   \r\n");
      out.write("<script type=\"text/javascript\" src=\"ajax/dojo/dojo.js\"></script>\r\n");
      out.write("<script type=\"text/javascript\">\r\n");
      out.write("dojo.require(\"dojo.widget.Tree\");\r\n");
      out.write("dojo.require(\"dojo.widget.TreeNode\");\r\n");
      out.write("dojo.require(\"dojo.widget.TreeSelector\");\r\n");
      out.write("dojo.require(\"dojo.widget.TreeRPCController\");\r\n");
      out.write("dojo.require(\"dojo.widget.TreeLoadingController\");\r\n");
      out.write("dojo.require(\"dojo.widget.TreeContextMenu\");\r\n");
      out.write("\r\n");
      out.write("\r\n");
      out.write("function treeSelectFired() {\r\n");
      out.write("    var treeSelector = dojo.widget.manager.getWidgetById('treeSelector');\r\n");
      out.write("    var treeNode = treeSelector.selectedNode;\r\n");
      out.write("    var hostDiv = document.getElementById(\"songDisplay\");\r\n");
      out.write("    var isFolder = treeNode['isFolder'];\r\n");
      out.write("    //alert(isFolder);\r\n");
      out.write("    if(!isFolder) {\r\n");
      out.write("       var song = treeNode['title'];\r\n");
      out.write("       var url = treeNode['url'];\r\n");
      out.write("       link(url);\r\n");
      out.write("    } else { \r\n");
      out.write("    }\r\n");
      out.write("}\r\n");
      out.write("\r\n");
      out.write("function link(url){\r\n");
      out.write("  alert(url);\r\n");
      out.write("  if(url){\r\n");
      out.write("    parent.MainFrame.location.href=url;\r\n");
      out.write("  }\r\n");
      out.write("}\r\n");
      out.write("\r\n");
      out.write("function init() { \r\n");
      out.write("\r\n");
      out.write("    //get a reference to the treeSelector\r\n");
      out.write("    var treeSelector = dojo.widget.manager.getWidgetById('treeSelector');\r\n");
      out.write("\r\n");
      out.write("    //connect the select event to the function treeSelectFired()\r\n");
      out.write("    dojo.event.connect(treeSelector,'select','treeSelectFired'); \r\n");
      out.write("}\r\n");
      out.write("\r\n");
      out.write("dojo.addOnLoad(init);\r\n");
      out.write("</script>\r\n");
      out.write("\r\n");
      out.write("<style type=\"text/css\"> \r\n");
      out.write("body {\r\n");
      out.write("  font-family: \"宋体\",\"黑体\";\r\n");
      out.write("}  \r\n");
      out.write("div {\r\n");
      out.write("  font-size: 12px; \r\n");
      out.write("  font-style: normal;\r\n");
      out.write("  font-weight: normal; \r\n");
      out.write("  line-height: 17px;\r\n");
      out.write("}  \r\n");
      out.write("</style>\r\n");
      out.write("\r\n");
      out.write("</head>\r\n");
      out.write("\r\n");
      out.write("<body background=\"images/body_bg.gif\" leftmargin=\"2\" topmargin=\"5\">\r\n");
      out.write("  <div dojoType=\"TreeLoadingController\" RPCUrl=\"treeServlet\" widgetId=\"treeController\" DNDController=\"create\"></div>\r\n");
      out.write("  <div dojoType=\"TreeSelector\" widgetId=\"treeSelector\"></div>\r\n");
      out.write("  <div dojoType=\"Tree\" DNDMode=\"between\" selector=\"treeSelector\" widgetId=\"bandTree\" controller=\"treeController\">\r\n");
      out.write("  <div dojoType=\"TreeNode\" title=\"root\" widgetId=\"root\" objectId=\"root\" isFolder=\"true\" childIconSrc=\"images/comm.gif\" expandLevel=\"1\"/>\r\n");
      out.write("</body>\r\n");
      out.write("</html>\r\n");
    } catch (Throwable t) {
      if (!(t instanceof SkipPageException)){
        out = _jspx_out;
        if (out != null && out.getBufferSize() != 0)
          out.clearBuffer();
        if (_jspx_page_context != null) _jspx_page_context.handlePageException(t);
      }
    } finally {
      if (_jspxFactory != null) _jspxFactory.releasePageContext(_jspx_page_context);
    }
  }
}
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