我有错误，我发送和数组到servlet那里我得到参数值并尝试使用它们存储到mysql数据库，但两个问题，获取参数值和插入数据库是好的，但我得到的是什么第一行插入的值是不需要的，我不知道它是如何发生的，第二个问题是，当preparestatement将值插入数据库时我想使用另一个预备语句来更改另一个表。
这是jsp页面
<script src="js/jquery-1.11.1.min.js"></script>
$("#formGenerate").submit(function(event) { // function to process submitted table
var a = {};
var tableData = []; // we will store rows' data into this array
$("#adminTable") // select table by id
.find(".tableRow") // select rows by class
.has(":checked") // select only rows with checked checkboxes
.each(function() { // for each selected row extract data
var tableRow = {};
var jRow = $(this);
tableRow[0] = jRow.find('td.customerId').text();
tableRow[1] = jRow.find('td.customerName').text();
tableRow[2] = jRow.find('td.customerType').text();
tableRow[3] = jRow.find('td.customerKWH').text();
tableRow[4] = jRow.find('td.customerFaraq').text();
tableRow[5] = jRow.find('td.customerLacag').text();
tableRow[6] = jRow.find('td.customerTax').text();
tableRow[7] = jRow.find('input.name1').val();
tableRow[8] = $('.bishaa').val();
tableRow[9] = $('.readers').val();
tableData.push(tableRow);
});
$.post(
"generateKwd", /*url of consuming servlet*/
{tableData: tableData}, /*data*/
function() {
alert("Success!");
}, /*function to execute in case of success*/
"json" /* data type */
);
event.preventDefault(); //Prevent sending form by browser
location.reload();
}
);
<form id="frmShow" action="showKwh" method="POST">
<label>ID</label>
<input type="text" id="id" name="id"/>
<label>Bisha</label>
<input type="text" id="bisha" name="bisha" class="bishaa" value="${param.bisha}"/>
<label>Reader</label>
<input type="text" id="reader" name="reader" class="readers" value="${param.reader}"/>
<input type="submit" value="show" id="submit"/>
</form>
<form id="formGenerate" action="generateKwd" method="POST">
<input type="submit" value="Generate"/>
<table id="adminTable" class="detailsTable">
<tr class="header">
<th colspan="4">Kilowat Entry</th>
</tr>
<tr class="tableHeading">
<td></td>
<td>customer id</td>
<td>name</td>
<td >group</td>
<td>kwh</td>
<td>faraq</td>
<td>lacag</td>
<td>tax</td>
<td>kwd</td>
</tr>
<c:forEach var="cust" items="${customerKwh}" varStatus="iter">
<tr id="${cust.id}" class="${((iter.index % 2) == 1) ? 'lightBlue' : 'white'} tableRow">
<td><input type="checkbox" name="check1" class="checker" value="ON" /></td>
<td id="id?${customer.id}" class="customerId">${cust.id}</td>
<td class="customerName" id="names">${cust.name}</td>
<td class="customerType">${cust.type}</td>
<td class="customerKWH" >${cust.kwh}</td>
<td class="customerFaraq"></td>
<td class="customerLacag"></td>
<td class="customerTax"></td>
<td><input type="text" name="kwd" size="8" id="kwd${cust.id}" value="${customer.id}" class="name1" />
</td>
</tr>
</c:forEach>
</table>
</form>
这是在servlet中
(userPath.equals("/generateKwd")) {
RateDao rate = new RateDao();
Enumeration tableData1 = request.getParameterNames();
while (tableData1.hasMoreElements()) {
String paramId = (String) tableData1.nextElement();
String paramName = (String) tableData1.nextElement();
String paramType = (String) tableData1.nextElement();
String paramKWH = (String) tableData1.nextElement();
String paramFaraq = (String) tableData1.nextElement();
String paramLacag = (String) tableData1.nextElement();
String paramTax = (String) tableData1.nextElement();
String paramKWD = (String) tableData1.nextElement();
String paramBisha = (String) tableData1.nextElement();
String paramReader = (String) tableData1.nextElement();
String[] paramIdValues = request.getParameterValues(paramId);
String[] paramNameValues = request.getParameterValues(paramName);
String[] paramTypeValues = request.getParameterValues(paramType);
String[] paramKWHValues = request.getParameterValues(paramKWH);
String[] paramFaraqValues = request.getParameterValues(paramFaraq);
String[] paramLacagValues = request.getParameterValues(paramLacag);
String[] paramTaxValues = request.getParameterValues(paramTax);
String[] paramKWDValues= request.getParameterValues(paramKWD);
String[] paramBishaValues= request.getParameterValues(paramBisha);
String[] paramReaderValues= request.getParameterValues(paramReader);
for (int i = 0; i < paramIdValues.length; i++) {
String paramIdValue = paramIdValues[i];
String paramNameValue = paramNameValues[i];
String paramTypeValue = paramTypeValues[i];
String paramKWHValue = paramKWHValues[i];
String paramFaraqValue = paramFaraqValues[i];
String paramLacagValue = paramLacagValues[i];
String paramTaxValue = paramTaxValues[i];
String paramKWDValue = paramKWDValues[i];
String paramBishaValue = paramBishaValues[i];
String paramReaderValue = paramReaderValues[i];
rate.addKulmiye(paramIdValue, paramNameValue, paramTypeValue, paramKWHValue,
paramFaraqValue, paramLacagValue, paramTaxValue, paramKWDValue, paramBishaValue, paramReaderValue);
//customerDao.updateKwh(paramIdValue, paramKWHValue);
}
}
userPath = "/kilowat";
}
这是用于插入值的java方法
public void addKulmiye(String strId, String name, String group, String strKwh, String strFaraq, String strLacag, String strTax, String strKwd, String bisha, String reader) {
String insertQuery = "INSERT INTO KULMIYE( ID,NAME,GROUPS,KWH,FARAQ,LACAG,CANSHUUR,KWD,BISHA,READER,BIXIN,DISCOUNT) "
+ "VALUES (?,?,?,?,?,?,?,?,?,?,?,?)";
try {
pStmt = dbConnection.prepareStatement(insertQuery);
//pStmt.setInt(1, customer.getId());
int id = Integer.parseInt(strId);
int kwh = Integer.parseInt(strKwh);
int kwd = Integer.parseInt(strKwd);
float faraq = Float.parseFloat(strFaraq);
float lacag = Float.parseFloat(strLacag);
float tax = Float.parseFloat(strTax);
pStmt.setInt(1, id);
pStmt.setString(2, name);
pStmt.setString(3, group);
pStmt.setInt(4, kwh);
pStmt.setFloat(5, faraq);
pStmt.setFloat(6, lacag);
pStmt.setFloat(7, tax);
pStmt.setInt(8, kwd);
pStmt.setString(9, bisha);
pStmt.setString(10, reader);
pStmt.setFloat(11, 0);
pStmt.setFloat(12, 0);
pStmt.execute();
} catch (SQLException e) {
System.err.println(e.getMessage());
}
finally {
try {
if (pStmt != null) {
pStmt.close();
}
} catch (SQLException e) {
System.out.println(e);
}
}
}
这是我用来插入
的mysql表 CREATE TABLE `kulmiye` (
`id` int(11) DEFAULT NULL,
`name` varchar(45) DEFAULT NULL,
`bisha` varchar(45) DEFAULT NULL,
`kwh` int(11) DEFAULT NULL,
`kwd` int(11) DEFAULT NULL,
`faraq` int(11) DEFAULT NULL,
`lacag` float DEFAULT NULL,
`canshuur` float DEFAULT NULL,
`reader` varchar(45) DEFAULT NULL,
`bixin` float DEFAULT NULL,
`discount` float DEFAULT NULL,
`trno` int(11) NOT NULL AUTO_INCREMENT,
`taariikh` datetime DEFAULT NULL,
`groups` varchar(45) DEFAULT NULL,
PRIMARY KEY (`trno`)
) ENGINE=InnoDB AUTO_INCREMENT=560 DEFAULT CHARSET=latin1;
插入成功，但第一个显示意外的值，而不是导致
的原因