1、前台jsp界面：
<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<%@include file="../include/taglib.jsp"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Insert title here</title>
<script src="js/common/jquery-1.9.1.min.js" type="text/javascript"></script>
<script type="text/javascript">
$(function() {
//对每行的第一个复选框实现简单的单选
$("#tablelist input[name=goodscheck]").click(function(){
$("#tablelist input[name=goodscheck]").attr('checked',false);
$(this).get(0).checked=true;
});
//添加一行，就是将第一个tr复制，默认有一个tr
$("#addbtn").click(function(){
var tr =$("#tablelist tr").eq(0);
var temptr=$(tr).clone(true); //复制tr
$("input",temptr).val(''); //将tr下的值清空
$("#tablelist").append(temptr);
});
//删除一行，至少有两个tr才能删除
$("#delbtn").click(function(){
if($("#tablelist tr").length>1){
var checks = $("#tablelist input[name=goodscheck]:checked");
if(checks && checks.length==1){
$(checks).parent().parent().remove();
}
}
});
//提交表单
$("#submit").click(function(){
refresh('tablelist');
testForm.submit();
});
});
//后台接收的是数组，因此需要刷新数组的索引值。如果刷新提交的索引为userTests[0]和userTests[2]（假如userTests[1]被删除）,
//后台的List集合的大小为3，索引为1的对象被认为是null.
function refresh(jq){
$("#"+jq+" tr").each(function(j){
$(this).children('td').children('input').each(function(){
var curname = $(this).attr('name');
if(curname){
var curnamearr = curname.split(".") ;
if(curnamearr && curnamearr.length>1){
var val="";
for(var i=1;i<curnamearr.length;i++){
val+="."+curnamearr[i];
}
$(this).attr('name','userTests['+j+']'+val);
}
}
});
});
}
</script>
</head>
<body>
<s:form action="login/test.do" id='testForm'>
<table id="tablelist">
<tr>
<td><input type="checkbox" name="goodscheck"></td>
<td><input type="text" name="userTests[0].name"/></td>
<td><input type="text" name="userTests[0].jtCode"/></td>
<td><input type="text" name="userTests[0].code"/></td>
<td><input type="text" name="userTests[0].operator.code"/></td>
</tr>
</table>
<s:submit id="submit" value="提交"></s:submit>
</s:form>
<br>
<input type="button" id="addbtn" value="添加">
<input type="button" id="delbtn" value="删除">
</body>
</html>
2、后台action代码：
private List<UserTest> userTests; //get set方法省略
public void test() {
if (userTests!=null) {
for(UserTest userTest: userTests){
logger.info(" ============ "+userTest +" operator： "+userTest.getOperator().getCode());
}
}else{
logger.info(" ============ userTest is null ");
}
}
3、javaBean对象
public class UserTest {
private String name;
private String code;
private String jtCode;
private TBLOperator operator;
...get set
｝
public class TBLOperator implements Serializable {
private String code;
｝
4、测试数据：
13:23:21,524 INFO [LoginAction] ============ UserTest [name=1, code=, jtCode=, operator=com.cjonline.foundation.evisa.entity.TBLOperator@1225261] operator： 11
13:23:21,524 INFO [LoginAction] ============ UserTest [name=2, code=, jtCode=, operator=com.cjonline.foundation.evisa.entity.TBLOperator@355104] operator： 22
13:23:21,524 INFO [LoginAction] ============ UserTest [name=4, code=, jtCode=, operator=com.cjonline.foundation.evisa.entity.TBLOperator@59e5ec] operator： 44444444
13:23:21,524 INFO [LoginAction] ============ UserTest [name=5, code=, jtCode=, operator=com.cjonline.foundation.evisa.entity.TBLOperator@5f77e] operator： 5555555555