StringUtil.java
package com.lh.bean;public class StringUtil {// 第一種方法轉換後的Int值private int intValue1;// 第一種方法轉換後的Int值private int intValue2;// 被轉換的字串private String strValue;// 預設構造方法public StringUtil() {}// 使用Integer類的parseInt()方法進行轉換public int getIntValue1() {return Integer.parseInt(strValue);}// 使用Integer類的valueOf()方法進行轉換public int getIntValue2() {return Integer.valueOf(strValue);}public String getStrValue() {return strValue;}public void setStrValue(String strValue) {this.strValue = strValue;}}
index.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><html><head><title>index.jsp</title></head><body><%String strAge = "26";%><!-- 使用userBean動作匯入StringUtil類 --><jsp:useBean id="strBean" class="com.lh.bean.StringUtil"></jsp:useBean><!-- 對StringUtil類對象中的strValue屬性賦值 --><jsp:setProperty property="strValue" name="strBean"value="<%=strAge %>" /><table><tr bgcolor="skyblue"><td align="center">使用Integer.parseInt()方法轉換字串：</td></tr><tr><td align="center"><!-- 獲得StringUtil類對象中的IntValue1屬性值 --> 年齡1:<jsp:getPropertyproperty="intValue1" name="strBean" />歲</td></tr><tr bgcolor="skyblue"><td align="center">使用Integer.valueOf()方法轉換字串：</td></tr><tr><td align="center"><!-- 獲得StringUtil類對象中的IntValue2屬性值 --> 年齡2：<jsp:getPropertyproperty="intValue2" name="strBean" />歲</td></tr></table></body></html>
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