将html table中的数据封装成json格式数据

var tab=document.getElementById("table1");
    var rows=tab.rows;

//alert(rows.length);

var txt = "[";

for(var i=2;i<rows.length;i++)

{

var r = "[";

for(var j=0;j<rows[i].cells.length;j++)

{

// alert("第"+(i+1)+"行，第"+(j+1)+"列的值是:"+rows[i].cells[j].innerHTML);

r += "\"" + rows[i].cells[j].innerHTML+"\",";

}

r = r.substring(0, r.length - 1);

r += "],";

txt += r;

}

txt = txt.substring(0, txt.length - 1);

txt += "]";

// alert(txt);

JSONArray jsonarray = JSONArray.fromObject(txt);

for(int i=0;i<jsonarray.size();i++){

log.debug(jsonarray.get(i));

JSONArray jsoncol = JSONArray.fromObject(jsonarray.get(i));

for(int j=0;j<jsoncol.size();j++){

log.debug(jsoncol.get(j));

}

}