var newnode={id:(100 + newCount), pId:treeNode.id, name:"new node" + (newCount++)};
zTree.addNodes(treeNode, newnode);
$.ajax({
type: "POST",
url: "tree2serlvet",
data: newnode,
dataType:"json",
success: function(data){
// alert( "Data Saved: " + data.id );
}
});
return false;
});
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html; charset=UTF-8");
response.setCharacterEncoding("UTF-8");
request.setCharacterEncoding("UTF-8");
String newnode=request.getParameter("newnode");
System.out.println(newnode);
request.getRequestDispatcher("tree2.jsp").forward(request, response);
}
新增的节点信息我想传入serlvet 但是输出一直是null

利用 chrome 的开发者调试工具查看 network ，检查你发出的 ajax url、参数是否正确