我的jsp中有以下js代码。刷新页面后,我无法保留下面的文本框值。知道如何保留这些价值吗? 我调用这个js函数onclick一个html按钮,以便它动态地将行添加到表中。
<script>
function addRow(tableID) {
if(validateForm()==true){
document.getElementById('cruisedowntime2').style.display = "block";
var table = document.getElementById(tableID);
var rowCount = table.rows.length;
var row = table.insertRow(rowCount);
/* var cell1 = row.insertCell(0);
var element1 = document.createElement("input");
element1.type = "checkbox";
element1.name = "chkbox[]";
element1.defaultChecked="true";
cell1.appendChild(element1);*/
var cell0 = row.insertCell(0);
var element0=document.createElement("select");
element0.name="cruiselinedropdown";
var dropdownlist1=document.getElementById("droplist1");
var defaultselected=dropdownlist1.options[dropdownlist1.selectedIndex].value;
//window.location.replace("http://localhost:8085/Bridge_Downtime_Utility/Servlet?var="+defaultselected);
<%Map<String, String> map = new HashMap<String,String>();
for (int i = 0; i < crsenamelist.size(); i++) {
map.put(crsenamelist.get(i),crsecodelist.get(i));
}
%>
element0.options.add( new Option(defaultselected,defaultselected,true,true) );
element0.options.add( new Option("--","") );
<%
for(Map.Entry m:map.entrySet()){ %>
element0.options.add( new Option("<%=m.getValue()%>","<%=m.getValue()%>") );
cell0.appendChild(element0);<%}%>
var textbox3=document.getElementById('starttime');
var textbox7=document.getElementById('startdate');
var cell2 = row.insertCell(1);
var element2 = document.createElement("input");
element2.title="Date: YYYY-MM-DD";
element2.type = "text";
element2.name = "starttimetextbox";
element2.value=textbox7.value+" "+textbox3.value;
cell2.appendChild(element2);
var textbox5=document.getElementById('endtime');
var textbox9=document.getElementById('enddate');
var cell3 = row.insertCell(2);
var element3 = document.createElement("input");
element3.title="Date: YYYY-MM-DD";
element3.type = "text";
element3.name = "endtimetextbox";
element3.value=textbox9.value+" "+textbox5.value;
cell3.appendChild(element3);
var textbox1=document.getElementById('descrip');
var cell4 = row.insertCell(3);
var element4 = document.createElement("input");
element4.type = "text";
element4.name = "descriptextbox";
if(textbox1.value==''){element4.value="-";}
else
element4.value=textbox1.value;
cell4.appendChild(element4);
//cell4.contenteditable=true;
/* var addRowBox = document.createElement("input");
addRowBox.setAttribute("type", "button");
addRowBox.setAttribute("value", "Edit");
var cell5 = row.insertCell(5);
cell5.appendChild(addRowBox);*/
var deleteRowBox = document.createElement("input");
deleteRowBox.setAttribute("type", "button");
deleteRowBox.setAttribute("value", "X");
deleteRowBox.setAttribute("onclick","SomeDeleteRowFunction(this)");
var cell6 = row.insertCell(4);
cell6.appendChild(deleteRowBox);
}}
</script>
答案 0 :(得分:0)
如果您希望在页面刷新后保留数据,则可以存储数据然后从localStorage加载。
答案 1 :(得分:0)
要在页面刷新时保留您的数据,您需要将其保存在某个地方,以备将来(页面重新加载后)访问。
没有其他方法可以保留数据而不实际保留数据:)