📄 splitjoin.jsp
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<%@ page contentType="text/html;charset=GBk" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %><%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %><html><head> <title>JSTL 函数 • Split/Join</title></head><body><c:set var="s1" value="北京 欢迎 您 Welcome to Beijing"/><c:set var="s3" value="长城||故宫|+颐和园|*天坛"/><c:set var="s5" value="长城|故宫+颐和园*天坛"/><h4>fn:split</h4><table border="1"> <tr> <th>输入串</th> <th>分割符</th> <th>结果</th> </tr> <tr> <td>${s1}</td> <td>空串</td> <td>${fn:join(fn:split(s1, ""),"<font color='red'> • </font>")}</td> </tr> <tr> <td>${s3}</td> <td>|</td> <td>${fn:join(fn:split(s3, "|"),"<font color='red'> • </font>")} </tr> <tr> <td>${s3}</td> <td>+</td> <td>${fn:join(fn:split(s3, "+"),"<font color='red'> • </font>")} </tr> <tr> <td>${s5}</td> <td>|+</td> <td>${fn:join(fn:split(s5, "|+*"),"<font color='red'> • </font>")} </tr> <tr> <td>空串</td> <td>空串</td> <td>${fn:join(fn:split("", ""),"<font color='red'> • </font>")} </tr></table><h4>fn:join</h4><c:set var="a1" value='${fn:split(s1, " ")}'/><table border="1"> <tr> <th>输入字符串数组</th> <th>分隔符</th> <th>结果</th> </tr> <tr> <td>${fn:join(a1,"<font color='red'> • </font>")} <td> + </td> <td>${fn:join(a1, " + ")}</td> </tr> <tr> <td>${fn:join(a1,"<font color='red'> • </font>")} <td><sep></td> <td>${fn:join(a1, " <sep> ")}</td> </tr> <tr> <td>${fn:join(a1,"<font color='red'> • </font>")} <td>空串</td> <td>${fn:join(a1, "")}</td> </tr> <tr> <td>${fn:join(a1,"<font color='red'> • </font>")} <td>null</td> <td>${fn:join(a1, null)}</td> </tr> <tr> <td>null</td> <td>空串</td> <td> ${fn:join(null, "")}</td> </tr></table></body></html>⌨️ 快捷键说明
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