Url Rewrite Filter 是一个基于java的 URL rewrite 一个包。 使用它后就可以使用一些友好的URL来代替 ?&组成的URL了。 例如可以把 http://www.cngump.com/world/china/guangzhou 转换为 http://www.cngump.com/world.jsp?country=china&city=guangzhou
步骤如下:
1. 下载和安装 Tomcat
2. 部署一个空白的 Java Web Application. urlrewrite.war
3. 下载 Url Rewrite Filter http://tuckey.org/urlrewrite/
4. 解压 下载后的 urlrewritefilter-2.6.zip 到 TOMCAT_HOME\webapps\urlrewrite\ 下
5. 修改 web.xml 如下
<?xml version=”1.0″ encoding=”UTF-8″?>
<web-app id=”WebApp_9″ version=”2.4″ xmlns=”http://java.sun.com/xml/ns/j2ee”
xmlns:xsi=”http://www.w3.org/2001/XMLSchema-instance”
xsi:schemaLocation=”http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd“>
<display-name>Url Rewrite</display-name>
<filter>
<filter-name>UrlRewriteFilter</filter-name>
<filter-class>org.tuckey.web.filters.urlrewrite.UrlRewriteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>UrlRewriteFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
6. 在更目录新建一个 world.jsp 文件。代码如下:
<html>
<header>
<title>world</title>
</header>
<body>
<%
String country = request.getParameter(”country”);
String city = request.getParameter(”city”);
out.write(”Country=” + country);
out.write(”<br>city=” + city);
%>
</body>
</html>
7. 修改 WEB-INF 下的 urlrewrite.xml: (使用正则式进行解释)
<urlrewrite>
<rule>
<from>/world/([0-9]+)/([0-9]+)</from>
<to>/world.jsp?country=$1&city=$2</to>
</rule>
</urlrewrite>
8. 重新加载 urlrewrite 后测试:
http://localhost:8080/urlrewrite/world/china/guangzhou
和http://localhost:8080/urlrewrite/world.jsp?country=china&city=guangzhou效果一样
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