js将表格数据转换成json java

js将表格数据转换成json

var materia = document.getElementById('material');//表格id
var sendName = new Array();
var trs = materia.getElementsByTagName("tr");
var inputNames = trs[1].getElementsByTagName("input");
for(var i = 0; i < inputNames.length; i++){
sendName[i] = inputNames[i].getAttribute("name");
}
var trnum = trs.length;
var oknum = 0;
var materias = "{data:["
for(var i = 0; i < trnum-1; i++){
var values = trs[i+1].getElementsByTagName("input");
var postStringAry = "{";
for(var j = 0; j < values.length ; j++){
postStringAry = postStringAry + "\""+sendName[j]+"\":"+"\""+values[j].value+"\"";
if(j+1<values.length){
postStringAry = postStringAry + ",";
}
}
postStringAry = postStringAry + "}";
if(i+1<trnum-1){
postStringAry = postStringAry + ",";
}
materias = materias + postStringAry;
}
materias = materias + "]}";

return materias;

将materias传入后台

Map<String, Class<?>> classMap = new HashMap<String, Class<?>>();
classMap.put("data", Material.class);
JsonData jd = (JsonData) JSONObject.toBean(JSONObject.fromObject(materias),JsonData.class, classMap);
for (final Iterator<?> iterator = jd.getData().iterator(); iterator.hasNext();) {
final Material material = (Material) iterator.next();
deviceMaintain.addMaterial(material);
}