检查字符串是否以指定字符串开头

作者: 神坛下的我 | 来源:发表于2018-08-18 18:38 被阅读0次

字符串相关方法
字符串操作2
2018-07-09-Python3 startswith()方
检查字符串是否以指定字符串开头
startsWith()和endsWith() 的使用
Design & Coed 5:检查字符串结尾
NSString
字符串扩展
每日python—— 匹配字符串开头或结尾
Confirm the Ending

StringUtil7.java

public class StringUtil7 {
    private String startStr;//指定开头的字符串
    private String str;//被判断的字符串
    private boolean check;
    public String getStartStr() {
        return startStr;
    }
    public void setStartStr(String startStr) {
        this.startStr = startStr;
    }
    public String getStr() {
        return str;
    }
    public void setStr(String str) {
        this.str = str;
    }
    public boolean isCheck() {
        /*该方法判断字符串是否以指定字符开头*/
        return str.startsWith(startStr);
    }
    
}

index.jsp

<body>
    <form action="result.jsp" method="post">
        <table>
            <tr>
                <td align="right">请输入字符串：</td>
                <td><input type="text" name="str" size="40"/></td>
            </tr>
            <tr>
                <td align="right">请输入开头的字符串：</td>
                <td><input type="text" name="startStr"/></td>
            </tr>
            <tr>
                <td colspan="2" align="center"><input type="submit" value="验证"/></td>
            </tr>
        </table>
    </form>
</body>

result.jsp

<body>
    <%
        request.setCharacterEncoding("utf-8");
        String str= request.getParameter("str");
        String startStr= request.getParameter("startStr");
    %>
    <jsp:useBean id="strBean" class="com.count.StringUtil7"></jsp:useBean>
    <jsp:setProperty property="str" name="strBean" value="<%=str %>"/>
    <jsp:setProperty property="startStr" name="strBean" value="<%=startStr %>"/>
    
    <table>
        <tr>
            <td>过滤之前的字符串：</td>
            <td align="left">
                <jsp:getProperty property="str" name="strBean"/>
            </td>
        </tr>
        <tr>
            <td>开头的字符串：</td>
            <td align="center">
                <jsp:getProperty property="startStr" name="strBean"/>
            </td>
        </tr>
        <tr>
            <td>验证结果：</td>
            <td align="right">
                <jsp:getProperty property="check" name="strBean"/>
            </td>
        </tr>
    </table>
</body>