struts2调整Freemarker

struts2整合Freemarker
１.解压struts2-core-X.X.X.jar文件，把在META-INF文件夹下面的struts-tags.tld文件复制到WEB-INF文件夹下。
将freemark的jar导入到工程中

２.在web.xml文件中配置freemark同时启动JSPSupportServlet.代码如下：

<servlet>
        <servlet-name>freemarker</servlet-name>
        <servlet-class>
            freemarker.ext.servlet.FreemarkerServlet
        </servlet-class>
        <!--下面的配置freemarke的ftl文件的位置 -->
        <init-param>
            <param-name>TemplatePath</param-name>
            <param-value>/</param-value>
        </init-param>
        <!-- 是否和服务器（tommcat)一起启动。0为不。1为是-->
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>freemarker</servlet-name>
        <url-pattern>*.ftl</url-pattern>
    </servlet-mapping>


<servlet>
  <!-- define a JspSupportServlet Object -->
  <servlet-name>JspSupportServlet</servlet-name>
  <servlet-class>org.apache.struts2.views.JspSupportServlet</servlet-class>
  <!-- setting JspSupportServlet auto start -->
  <load-on-startup>1</load-on-startup>
 </servlet>

３.在FreeMarker模板中使用assign指令导入标签库。代码如下

<#assign s=JspTaglibs["/WEB-INF/struts-tags.tld"] /> 注：这里我把struts-tags.tld放在WEB-INF下面

4.现在我们可以在FreeMarker模板中使用标签了
示例代码如下：

<#assign s=JspTaglibs["/WEB-INF/struts-tags.tld"] />
<@s.form action="login">
 <@s.textfield name="username" label="username"/>
 <@s.submit value="login" />
/@s.form

<#assign s=JspTaglibs["/WEB-INF/struts-tags.tld"] />
<html>
<head>
<title>Login Form</title>
</head>
<body>
please input username and password login<br>
<@s.form action="Login.action">
 <@s.textfield name="username" label="username"/>
 <@s.password name="password" label="password" />
 <@s.submit value="submit" />
</@s.form>
</body>
</html>

<html>
<head>
<title>Success</title>
</haed>
<body>
WelCome,${username},you logined!<br>
<a href="ShowInfo.action">Show Information</a>
</body>
</html>

<html>
<head>
<title>User Information</title>
<body>
<table border="1" width="360">
<caption>User Information</caption>

<tr>
<td>username:</td>
<td>${username}</td>
</tr>
<tr>
<td>sex:</td>
<td>${sex}</td>
</tr>
<tr>
<td>age:</td>
<td>${age}</td>
</tr>
</table>
</body>
</html>

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