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整合了下网上资料，弄了个自己的方法，可以参考下：
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn"%>
<!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=gb2312" />
<title>无标题文档</title>
</head>
<body onload="window.show()">
<select class="easyui-combobox" id="years" name="select" panelHeight="auto" style=" width:80px; padding-top:5px; margin-top:10px;">
</select>年
<select class="easyui-combobox" id="months" name="select" panelHeight="auto" style=" width:80px; padding-top:5px; margin-top:10px;">
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
<option value="5">5</option>
<option value="6">6</option>
<option value="7">7</option>
<option value="8">8</option>
<option value="9">9</option>
<option value="10">10</option>
<option value="11">11</option>
<option value="12">12</option>
</select>月
</body>
<script type="text/javascript">
function show(){
var currentMonth = new Date().getMonth();
var currentYear = new Date().getFullYear();
document.getElementById("months").value =currentMonth+1;
var year = document.getElementById("years");
for (var i = 0; i <= 5; i++) {
var theOption1 = document.createElement("option");
theOption1.innerHTML = currentYear-i;
theOption1.value = currentYear-i;
year.appendChild(theOption1);
}
}
</script>
</html><%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn"%>
<!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=gb2312" />
<title>无标题文档</title>
</head>
<body onload="show()">
<select class="easyui-combobox" id="years" name="select" panelHeight="auto" style=" width:80px; padding-top:5px; margin-top:10px;">
</select>年
<select class="easyui-combobox" id="months" name="select" panelHeight="auto" style=" width:80px; padding-top:5px; margin-top:10px;">
<option value=7>7</option>
</select>月
</body>
<script type="text/javascript">
function show(){
var currentYear = new Date().getFullYear();
var currentMonth = new Date().getMonth();
var year = document.getElementById("years");
var month = document.getElementById("months");
var theOption1 = document.createElement("option");
var theOption2 = document.createElement("option");
for (var i = 0; i <= 11; i++) {
var theOption1 = document.createElement("option");
var theOption2 = document.createElement("option");
theOption1.innerHTML = currentYear-i;
theOption1.value = currentYear+5-i;
year.appendChild(theOption1);
theOption2.innerHTML = currentMonth+4-i;
theOption2.value = currentMonth+4-i;
month.appendChild(theOption2);
}
}
</script>
</html>