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15-判断用户输入的日期是否为当前日期(字符串处理)

2013-07-02 14:29 549 查看

StringUtil.java

package com.lh.bean;

import java.util.Calendar;

public class StringUtil {
// 用户输入的日期
private String dateStr;
// 判断是否是今天
private boolean today;
// 提示信息
private String cue;

public StringUtil() {
}

public String getDateStr() {
return dateStr;
}

public void setDateStr(String dateStr) {
// 替换日期中的空格为“”
dateStr = dateStr.replaceAll(" ", "");
this.dateStr = dateStr;
}

public boolean isToday() {
// 将日期字符串分解为数组
String dateArr[] = dateStr.split("-");
int year = Integer.parseInt(dateArr[0]);
int month = Integer.parseInt(dateArr[1]);
int date = Integer.parseInt(dateArr[2]);
// 获得系统当前时间的Calender对象
Calendar now = Calendar.getInstance();
int nowYear = now.get(now.YEAR);
int nowMonth = now.get(now.MONTH) + 1;
int nowDate = now.get(now.DAY_OF_MONTH);
if (year == nowYear && month == nowMonth && date == nowDate) {
// 如果年月日的值都相同
cue = "输入的日期为当前日期！";
today = true;
} else {
cue = "输入的日期不是当前日期！";
today = false;
}
return today;
}

public String getCue() {
return cue;
}

public void setCue(String cue) {
this.cue = cue;
}

public void setToday(boolean today) {
this.today = today;
}

}

index.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<html>
<head>
<title>index.jsp</title>
</head>

<body>
<form action="check.jsp" method="post">
<table>
<tr>
<td align="right">请输入日期：</td>
<td><input type="text" name="datestr" /><font>格式为：2012-12-21</font>
</td>
</tr>
<tr>
<td colspan="2" align="center"><input type="submit" value="检查" />
</td>
</tr>
</table>
</form>
</body>
</html>

check.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<html>
<head>
<title>check.jsp</title>
</head>

<body>
<%
request.setCharacterEncoding("UTF-8");
String dateStr = request.getParameter("datestr");
%>

<jsp:useBean id="strBean" class="com.lh.bean.StringUtil"></jsp:useBean>

<jsp:setProperty property="dateStr" name="strBean"
value="<%=dateStr %>" />
<table>
<tr>
<td align="right">输入的日期为：</td>
<td>
 <jsp:getProperty
property="dateStr" name="strBean" /></td>
</tr>
<tr>
<td align="right">是否为当前日期：</td>
<td>
 <jsp:getProperty property="today"
name="strBean" /></td>
</tr>
<tr>
<td align="right">提示信息：</td>
<td>
 <jsp:getProperty property="cue"
name="strBean" /></td>
</tr>
</table>
</body>
</html>

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