form submit 如何提交js文件里的变量

Question

我的一个jsp页面 有几个input 还有个extjs树带checkbox的（js文件里的） 现在想用form submit提交input 和树的节点 改怎么提交啊 节点信息已经放到check里面了 如何把check提交到action (struts2) 给个完整点的答案 谢谢了
[code="java"]
var check = [];
Ext.onReady(function() {
Ext.BLANK_IMAGE_URL = "/dtjcsy/pages/js/ext/resources/images/default/s.gif";
var Tree= Ext.tree;
var loader = new Ext.tree.TreeLoader;

var tree = new Tree.TreePanel({
    el:'tree-div',
    autoScroll:true,
    animate:true,
    enableDD:true,
    frame:false,
    border:false,
    useArrows:true,
    checkModel:'cascade',
    onlyLeafCheckable:false,
    rootVisible:true,
    bodyStyle:'background-color:#b4d5f5',
    containerScroll: true,
    listeners:{
        checkchange:function(node,checked){
        if(checked){
            var id = node.attributes.id;
            check.push(id);
        }
        }
    },
    loader: new Tree.TreeLoader({
        dataUrl:'rightAction.action',
        baseParams:{roleId:1},
        baseAttrs: { uiProvider: Ext.ux.TreeCheckNodeUI }
    })
});

var root =new Tree.AsyncTreeNode({
    text:"可用权限列表",
    draggable:false,
    id:'0'
});

tree.setRootNode(root);
tree.render();
root.expand();

});

[/code]

Answer 1

[code="java"]
/*!

• Ext JS Library 3.3.1
• Copyright(c) 2006-2010 Sencha Inc.
• [e-mail]
• http://www.sencha.com/license */

Ext.onReady(function(){
var form = Ext.get('example-form');//你要赋值的form

var tree = new Ext.tree.TreePanel({
    renderTo:'tree-div',
    title: 'My Task List',
    height: 300,
    width: 400,
    useArrows:true,
    autoScroll:true,
    animate:true,
    enableDD:true,
    containerScroll: true,
    rootVisible: false,
    frame: true,
    root: {
        nodeType: 'async'
    },

    // auto create TreeLoader
    loader : new Ext.tree.TreeLoader({  
        dataUrl:'check-nodes.json',
        requestMethod : 'GET'
    }),
    listeners: {
        'checkchange': function(node, checked){
            var id = node.attributes.id;
            if(checked){
                Ext.DomHelper.append('example-form' , {tag: 'input', name: 'id', type : 'hidden' , value: id});
            }else{
                var inputs = Ext.DomQuery.jsSelect('input[value=' + id + ']' , 'example-form');
                for(var i = 0 , len = inputs.length ; i < len ; i++) {
                    form.dom.removeChild(inputs[i]);
                } 
            }
        }
    },

    buttons: [{
        text: 'Get Completed Tasks',
        handler: function(){
            var msg = '', selNodes = tree.getChecked();
            Ext.each(selNodes, function(node){
                if(msg.length > 0){
                    msg += ', ';
                }
                msg += node.text;
            });
            Ext.Msg.show({
                title: 'Completed Tasks', 
                msg: msg.length > 0 ? msg : 'None',
                icon: Ext.Msg.INFO,
                minWidth: 200,
                buttons: Ext.Msg.OK
            });
        }
    }]
});

tree.getRootNode().expand(true);

});
[/code]
这个是我把extjs提供的例子，check-tree.html做了一下改动写的，你看看，我测试过了可以的，页面上加了一个form。我不知道你check提供到服务器端使用什么参数名，所以这里都采用了name为id，你可以按需要更改。