[英]Retrieving multiple textbox values with same name from JSP in Servlet
我试图将具有相同名称的文本框的值从JSP传递到servlet但不能完成此任务。
我尝试在servlet中使用它,但我只获得一个文本框值:
String[] words = request.getParameterValues("words");
String[] meanings = request.getParameterValues("meaning");
我的javascript有助于生成多个表行:
<SCRIPT language="javascript">
function addRow(tableID) {
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";
cell1.appendChild(element1);
var cell2 = row.insertCell(1);
var element2 = document.createElement("input");
element2.type = "text";
cell2.appendChild(element2);
var cell3 = row.insertCell(2);
var element3 = document.createElement("input");
element3.type = "text";
cell3.appendChild(element3);
}
function deleteRow(tableID) {
try {
var table = document.getElementById(tableID);
var rowCount = table.rows.length;
for(var i=0; i<rowCount; i++) {
var row = table.rows[i];
var chkbox = row.cells[0].childNodes[0];
if(null != chkbox && true == chkbox.checked) {
table.deleteRow(i);
rowCount--;
i--;
}
}
}catch(e) {
alert(e);
}
}
</SCRIPT>
生成多行的Html表: -
</body>
<form name="managelist" action="../createlistpath" method="post">
<TABLE id="dataTable" width="600px" border="0">
<tr>
<td><b> List Name</b></td>
<td colspan="2"><input type="text" name="listname"></td>
</tr>
<tr >
<td><b>Select</b></td>
<td><b>Word</b></td>
<td><b>Meaning</b></td>
</tr>
<TR >
<TD><INPUT type="checkbox" name="checkbox"/></TD>
<TD> <INPUT type="text" name="words" /> </TD>
<TD> <INPUT type="text" name="meaning" /> </TD>
</TR>
</TABLE>
<INPUT type="button" value="Add Row" onclick="addRow('dataTable')" />
<INPUT type="button" value="Delete Row" onclick="deleteRow('dataTable')" />
<br>
<input type="submit" value = "submit" name="submit">
</form>
</body>
您没有命名动态创建的输入元素(“单词”或“含义”)
var element2 = document.createElement("input");
element2.name = "words";
element2.type = "text";
cell2.appendChild(element2);
如果您有这样的表格:
<form method="post">
<input type="text" name="words"><br>
<input type="text" name="words"><br>
<input type="submit">
</form>
如果您在文本框中放入一个和两个 ,则发送
words=one&words=two
为了得到,
String[] words = request.getParameterValues("words");
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