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JAVA實現URL rewrite偽靜態，具體代碼如下：

urlrewrite偽靜態

<rule>

<from><![CDATA[/products/id-([0-9]+)-pid-([0-9]+).html]]></from>

<to><![CDATA[/products/index.jsp?id=$1&pid=$2]]></to>

</rule>

你不是想做java版的偽靜態嗎 這個比外國的urlrewrite.jar效率更高

JAVA代碼：

package org.apple.util.urlrewrite;

/**

*

曹正輝 QQ：330937205 SimpleOnline 開發團隊

*

*/

public class Rule {

@Override

public String toString() {

return "Rule [from=" + from + ", to=" + to + "]";

}

private String from;

private String to;

public void setFrom(String from) {

this.from = from;

}

public String getFrom() {

return from;

}

public void setTo(String to) {

this.to = to;

}

public String getTo() {

return to;

}

/**

* 真正的處理方法

*

*/

public String dealWithUrl(String url, Boolean isHandler) {

boolean isMatches = url.matches(from);

if (isMatches) {

isHandler = true;

url = url.replaceAll(from, to);

return url;

} else {

return url;

}

}

}

package org.apple.util.urlrewrite;

/**

*

曹正輝 QQ：330937205 SimpleOnline 開發團隊

*

*/

public class StringUtils {

public static boolean isBlank(String string) {

if (string == null) {

return true;

} else {

return false;

}

}

public static boolean isNotBlank(String string) {

if (string != null && "".equals(string.trim())) {

return true;

} else {

return false;

}

}

}

package org.apple.util.urlrewrite;

import java.io.File;

import java.io.IOException;

import javax.servlet.Filter;

import javax.servlet.FilterChain;

import javax.servlet.FilterConfig;

import javax.servlet.ServletException;

import javax.servlet.ServletRequest;

import javax.servlet.ServletResponse;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

/**

*

曹正輝 QQ：330937205 SimpleOnline 開發團隊 2013-9-2

*

*/

public class UrlRewriteFilter implements Filter {

private UrlRewriter urlRewriter;

private boolean reloadConfig = true;

private long reloadConfigInterval = 60;

private String configPath = "/WEB-INF/urlrewrite.xml";

private String configURLPath = "";

private long lastReloadConfigCheckTime = System.currentTimeMillis();

private long configFilelastModified = System.currentTimeMillis();

public void init(FilterConfig filterConfig) throws ServletException {

String configPath = filterConfig.getInitParameter("configPath");

if (StringUtils.isNotBlank(configPath)) {

this.configURLPath = WebPath.WebRootPath + configPath;

File file = new File(this.configURLPath);

if (!file.exists()) {

throw new RuntimeException("urlrewrite所需的配置文件路徑出錯");

}

} else {

this.configURLPath = WebPath.WebRootPath + this.configPath;

File file = new File(this.configURLPath);

if (!file.exists()) {

throw new RuntimeException("urlrewrite.xml配置文件不存在");

}

}

urlRewriter = new UrlRewriter(configURLPath);

}

public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {

if (this.reloadConfig) {

reloadConfig();

}

try {

boolean isOk = urlRewriter.dealWithUrl((HttpServletRequest) servletRequest, (HttpServletResponse) servletResponse);

if (isOk) {

// 自動跳轉

} else {

filterChain.doFilter(servletRequest, servletResponse);

}

} catch (Exception e) {

throw new RuntimeException(e);

}

}

/**

* 每次http訪問的時候根據配置文件檢查時間大于其系統規定的間隔時間和配置文件是否修改，來決定是否重新加載配置文件

*/

private void reloadConfig() {

/**

* 下面是自動加載配置文件的算法實現

*/

long now = System.currentTimeMillis();

if ((now - this.reloadConfigInterval > this.lastReloadConfigCheckTime)) {

this.lastReloadConfigCheckTime = now;

File file = new File(this.configURLPath);

long lastModified = file.lastModified();

if (configFilelastModified != lastModified) {

configFilelastModified = lastModified;

// 修改后重新加載到內存

urlRewriter = new UrlRewriter(configURLPath);

}

}

}

public void destroy() {

}

}

package org.apple.util.urlrewrite;

import java.io.File;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.Iterator;

import java.util.Map;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import org.dom4j.Document;

import org.dom4j.Element;

import org.dom4j.io.SAXReader;

/**

*

曹正輝 QQ：330937205 SimpleOnline 開發團隊

*

*/

public class UrlRewriter {

private Rule[] rules;

//構建url匹配規則

public UrlRewriter(String configURLPath) {

ArrayList<Rule> roleUrlList = getAllRileList(configURLPath);

int size = roleUrlList.size();

rules = new Rule[size];

if (size != 0) {

for (int i = 0; i < size; i++) {

rules[i] = roleUrlList.get(i);

}

}

}

//構建url匹配規則

@SuppressWarnings("unchecked")

public ArrayList<Rule> getAllRileList(String filePath) {

Map<String, String> regularExpressionMap = new HashMap<String, String>();

ArrayList<Rule> roleUrlList = null;

try {

SAXReader reader = new SAXReader();

Document document = reader.read(new File(filePath));

Element root = document.getRootElement();

roleUrlList = new ArrayList<Rule>();

for (Iterator<Rule> iterator = root.elementIterator(); iterator.hasNext();) {

Element element = (Element) iterator.next();

Rule rule = new Rule();

rule.setFrom(element.elementText("from"));

rule.setTo(element.elementText("to"));

String from = element.elementText("from");

if (regularExpressionMap.containsKey(from)) {

throw new RuntimeException("from: " + from + "值重復");

}

regularExpressionMap.put(from, "ok");

// 加入之前需要檢測該from和to所對應的正則表達式是否存在

roleUrlList.add(rule);

}

} catch (Exception e) {

throw new RuntimeException(e);

}

return roleUrlList;

}

public boolean dealWithUrl(HttpServletRequest request, HttpServletResponse response) throws Exception {

String url = request.getServletPath().trim();// 只是針對

String url_copy = url;

if (rules.length != 0) {

int rulesLength = rules.length;

Boolean isHandler = false;

for (int i = 0; i < rulesLength; i++) {

url = rules[i].dealWithUrl(url, isHandler);

//如果匹配則進行替換,然后進行頁面的跳轉

if (url != null && !"".equals(url) && (!url_copy.equals(url))) {

request.getRequestDispatcher(url).forward(request, response);

return true;

}

}

}

return false;

}

}

package org.apple.util.urlrewrite;

public class WebPath {//獲取web根目錄

/**

* @return eg:/D:/apache-tomcat-6.0.35/webapps/urlrewrite/

*/

public static String WebRootPath = WebPath.class.getResource("/").getPath().toString().replace("/WEB-INF/classes/", "");

}

<?xml version="1.0" encoding="UTF-8"?>

<web-app version="2.5" xmlns="

xmlns:xsi=""

xsi:schemaLocation=

">

<welcome-file-list>

<welcome-file>index.jsp</welcome-file>

</welcome-file-list>

<filter>

<display-name>SimpleOnline 開發團隊開發的一個UrlRewrite插件--注意該過濾器建議配置為第一個過濾器</display-name>

<filter-name>UrlRewriteFilter</filter-name>

<filter-class>org.apple.util.urlrewrite.UrlRewriteFilter</filter-class>

<init-param>

<param-name>configPath</param-name>

<param-value>/WEB-INF/urlrewrite.xml</param-value>

</init-param>

<init-param>

<description>用于信息調試--該插件自帶SimpleOnline 開發團隊的日志[log4j]記錄插件,建議自己修改源碼中的日志記錄方式,如果需要修改本團隊的日志插件為自身的配置只需修改Apple-CommonsLogging.jar/log4j.properties中的配置</description>

<param-name>devMode</param-name>

<param-value>true</param-value>

</init-param>

</filter>

<filter-mapping>

<filter-name>UrlRewriteFilter</filter-name>

<url-pattern>/*</url-pattern>

</filter-mapping>

</web-app>

<?xml version="1.0" encoding="utf-8"?>

<!--

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配置如下

<filter>

<filter-name>UrlRewriteFilter</filter-name>

<filter-class>org.apple.util.urlrewrite.UrlRewriteFilter</filter-class>

<init-param>

<param-name>configPath</param-name>

<param-value>/WEB-INF/urlrewrite.xml</param-value>

</init-param>

<init-param>

<param-name>devMode</param-name>

<param-value>true</param-value>

</init-param>

</filter>

<filter-mapping>

<filter-name>UrlRewriteFilter</filter-name>

<url-pattern>/*</url-pattern>

</filter-mapping>

下面是支持的策略

注意<from><![CDATA[/test]]></from>

<to><![CDATA[/rewrite.jsp]]></to>中間不要有空格

-->

<urlrewrite>

<rule>

<from><![CDATA[/test]]></from>

<to><![CDATA[/rewrite.jsp]]></to>

</rule>

<rule>

<from><![CDATA[/test/test]]></from>

<to><![CDATA[/rewrite.jsp]]></to>

</rule>

<rule>

<from><![CDATA[/some/old/page.html]]></from>

<to><![CDATA[/some/new/page.html]]></to>

</rule>

<rule>

<from><![CDATA[/test/test/(.*)]]></from>

<to><![CDATA[/test2/test2/$1]]></to>

</rule>

<rule>

<from><![CDATA[/products/([0-9]+)]]></from>

<to><![CDATA[/products/index.jsp?id=$1]]></to>

</rule>

<rule>

<from><![CDATA[/products/([0-9]+)/([0-9]+)]]></from>

<to><![CDATA[/products/index.jsp?id=$1&pid=$2]]></to>

</rule>

</urlrewrite>

<!-- 插件支持:自動重新加載rule列表 -->

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