关键字: jsp <
jsp-config>
<jsp-config>
包括
<taglib>
和
<jsp-property-group>
两个子元素。其中<taglib>
元素在JSP 1.2
时就已经存在;而<jsp-property-group>
是JSP 2.0
新增的元素。<jsp-property-group>
元素主要有八个子元素,它们分别为:
1.<description>:设定的说明
2.<display-name>:设定名称
3.<url-pattern>:设定值所影响的范围,如:
/CH2 或
/*.jsp
4.<el-ignored>:若为
true,表示不支持
EL 语法
5.<scripting-invalid>:若为
true,表示不支持
<% scripting %>语法
6.<page-encoding>:设定
JSP 网页的编码
7.<include-prelude>:设置
JSP 网页的抬头,扩展名为
.jspf
8.<include-coda>:设置
JSP 网页的结尾,扩展名为
.jspf
一个简单的<jsp-config>
元素完整配置:
- <jsp-config>
- <taglib>
- <taglib-uri>Taglib</taglib-uri>
- <taglib-location>/WEB-INF/tlds/MyTaglib.tld</taglib-location>
- </taglib>
- <jsp-property-group>
- <description>Special property group for JSP Configuration JSP example.</description>
- <display-name>JSPConfiguration</display-name>
- <url-pattern>/jsp/* </url-pattern>
- <el-ignored>true</el-ignored>
- <page-encoding>GB2312</page-encoding>
- <scripting-invalid>true</scripting-invalid>
- <include-prelude>/include/prelude.jspf</include-prelude>
- <include-coda>/include/coda.jspf</include-coda>
- </jsp-property-group>
- </jsp-config>
<jsp-config>
<taglib>
<taglib-uri>Taglib</taglib-uri>
<taglib-location>/WEB-INF/tlds/MyTaglib.tld</taglib-location>
</taglib>
<jsp-property-group>
<description>Special property group for JSP Configuration JSP example.</description>
<display-name>JSPConfiguration</display-name>
<url-pattern>/jsp/* </url-pattern>
<el-ignored>true</el-ignored>
<page-encoding>GB2312</page-encoding>
<scripting-invalid>true</scripting-invalid>
<include-prelude>/include/prelude.jspf</include-prelude>
<include-coda>/include/coda.jspf</include-coda>
</jsp-property-group>
</jsp-config>
对于Web
应用程式来说,Scriptlet
是个不乐意被见到的东西,因为它会使得HTML
与Java
程式码交相混杂,对于程式的维护来说相当的麻烦,必要的时候,您可以在web.xml
中加上<script-invalid>
标签,设定所有的JSP
网页都不可以使用Scriptlet
,例如:
- <web-app ..>
- ....
- <jsp-config>
- <jsp-property-group>
- <url-pattern>*.jsp</url-pattern>
- <script-invalid>true</script-invalid>
- </jsp-property-group>
- </jsp-config>
- ....
- </web-app>
<web-app ..>
....
<jsp-config>
<jsp-property-group>
<url-pattern>*.jsp</url-pattern>
<script-invalid>true</script-invalid>
</jsp-property-group>
</jsp-config>
....
</web-app>
原文地址:http://janwer.javaeye.com/blog/150217