web.xlm中jsp-config标签详解 博客分类: web前端 web.xml
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2024-03-14 21:59:41
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原文转自:http://blog.csdn.net/chssheng2007/article/details/5916960
<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:
Xml代码 复制代码
<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>
[xml] view plaincopy
<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:
Xml代码 复制代码
<web-app ..>
....
<jsp-config>
<jsp-property-group>
<url-pattern>*.jsp</url-pattern>
<script-invalid>true</script-invalid>
</jsp-property-group>
</jsp-config>
....
</web-app>
[xml] view plaincopy
<web-app ..>
....
<jsp-config>
<jsp-property-group>
<url-pattern>*.jsp</url-pattern>
<script-invalid>true</script-invalid>
</jsp-property-group>
</jsp-config>
....
</web-app>
<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:
Xml代码 复制代码
<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>
[xml] view plaincopy
<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:
Xml代码 复制代码
<web-app ..>
....
<jsp-config>
<jsp-property-group>
<url-pattern>*.jsp</url-pattern>
<script-invalid>true</script-invalid>
</jsp-property-group>
</jsp-config>
....
</web-app>
[xml] view plaincopy
<web-app ..>
....
<jsp-config>
<jsp-property-group>
<url-pattern>*.jsp</url-pattern>
<script-invalid>true</script-invalid>
</jsp-property-group>
</jsp-config>
....
</web-app>