今天偶然在Greasemonkey的maillist里发现了个有趣的东西
Monkeygrease ，一个服务器端的Greasemonkey，可以在服务器端执行js代码，可以对现有的html中插入你想要的html或js代码，有些像在html中作aop操作。
只需要简单简单的配置Monkeygrease就可以工作了：
加入一个Filter<filter>
<filter-name>Monkeygrease</filter-name>
<filter-class>
org.manalang.monkeygrease.MonkeygreaseFilter
</filter-class>
<init-param>
<param-name>confReloadCheckInterval</param-name>
<param-value>0</param-value>
</init-param>
<init-param>
<param-name>commentsOn</param-name>
<param-value>true</param-value>
</init-param>
<init-param>
<param-name>logLevel</param-name>
<param-value>2</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>Monkeygrease</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
配置插入规则：
<?xml version="1.0" encoding="UTF-8"?>
<mg:monkeygrease xmlns:mg="http://monkeygrease.org"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://monkeygrease.org http://monkeygrease.org/monkeygrease.xsd ">
<rule enabled="true" name="Sample rule 1" url-pattern="/.*" insert-at="head-begin">
<![CDATA[
<!-- Whatever you insert here gets injected as the first item in the <head> section -->
]]>
</rule>
<rule enabled="true" name="Sample rule 2" url-pattern="/.*" insert-at="head-begin">
<![CDATA[
<!-- Whatever you insert here gets injected as the last item in the <head> section -->
]]>
</rule>
<rule enabled="true" name="Sample rule 3" url-pattern="/.*" insert-at="body-begin">
<![CDATA[
<!-- Whatever you insert here gets injected as the first item in the <body> section -->
]]>
</rule>
<rule enabled="true" name="Sample rule 4" url-pattern="/.*" insert-at="body-end">
<![CDATA[
<!-- Whatever you insert here gets injected as the last item in the <body> section -->
]]>
</rule>
</mg:monkeygrease>
</xml>
你可以在
<![CDATA[
中放入js或html代码，比如插入如下js代码
<![CDATA[
<script type="text/javascript" language="javascript">
<!--
window.onload = function() {
alert('Hello World!!!');
};
-->
</script>
]]>
接下来简单说一下规则：insert-at="head-begin"
在head前插入如下文本
<!-- Whatever you insert here gets injected as the first item in the <head> section -->
其他配置以此类推
原始的html<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Test</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
<body>
This is a test
</body>
按规则插入后的html
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>This page has been monkeygrease'd</title>
<script type="text/javascript" src="/dojo/dojo.js"> </script>
<link href="css.css" rel="stylesheet" type="text/css" />
<title>Test</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
<body>
<div style="background:green">beginning of body</div>
This is a test
<div style="background:red">End of body</div>
</body>
</html>
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