JSON数据转换成树型JSON数据结构

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JSON数据转换成树型JSON数据结构

<script type="text/javascript">
        var json={
            "t001p":{"ID":"t001","Name":"node_t001","ParentID":"y001"},
            "s001p":{"ID":"s001","Name":"node_t001","ParentID":"y001"},
            "m001p":{"ID":"m001","Name":"node_m001","ParentID":"y001"},
            "r001p":{"ID":"r001","Name":"node_r001","ParentID":"s001"},
            "u001p":{"ID":"u001","Name":"node_u001","ParentID":"s001"},
            "h001p":{"ID":"h001","Name":"node_h001","ParentID":"s001"},
            "e001p":{"ID":"e001","Name":"node_e001","ParentID":"h001"},
            "k001p":{"ID":"k001","Name":"node_k001","ParentID":"h001"},
            "j001p":{"ID":"j001","Name":"node_j001","ParentID":"m001"},
            "y001p":{"ID":"y001","Name":"node_y001","ParentID":"y001"}
        };
        function convert(source){
            var tmp={},parent,n;
            for(n in source){
                var item=source[n];
                if(!tmp[item.ID]){
                    tmp[item.ID]={};
                }
                tmp[item.ID].Name=item.Name;
                tmp[item.ID].ID=item.ID;
                if(!tmp[item.ID].children)tmp[item.ID].children=[];
                if(item.ID!=item.ParentID){
                    if(tmp[item.ParentID]){
                        tmp[item.ParentID].children.push(tmp[item.ID]);
                    }else{
                        tmp[item.ParentID]={children:[tmp[item.ID]]};
                    }
                }else{
                    parent=item.ID;
                }
            }
            return tmp[parent];
        }
        var obj=convert(json);
</script>