struts2约束提醒

struts2约束提示
struts.xml文件中没有提示代码，导入去约束dtd文件。


在myeclipse中  Preferences 下的 XML Catalog 中  add  （事先将dtd文件放置到工程目录中）   选择 workspace 选择dtd文件；然后选择 System Id   ，将key为空间名称（"http://struts.apache.org/dtds/struts-2.0.dtd"）   即可。



struts-2.1.7.dtd文件

<?xml version="1.0" encoding="UTF-8"?>
<!--
/*
* $Id: struts-2.0.dtd 651946 2008-04-27 13:41:38Z apetrelli $
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements.  See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership.  The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License.  You may obtain a copy of the License at
*
*  http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied.  See the License for the
* specific language governing permissions and limitations
* under the License.
*/
-->
<!-- START SNIPPET: strutsDtd -->

<!--
   Struts configuration DTD.
   Use the following DOCTYPE

   <!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.1.7//EN"
"http://struts.apache.org/dtds/struts-2.1.7.dtd">
-->

<!ELEMENT struts ((package|include|bean|constant)*, unknown-handler-stack?)>
<!ATTLIST struts
    order CDATA #IMPLIED
>

<!ELEMENT package (result-types?, interceptors?, default-interceptor-ref?, default-action-ref?, default-class-ref?, global-results?, global-exception-mappings?, action*)>
<!ATTLIST package
    name CDATA #REQUIRED
    extends CDATA #IMPLIED
    namespace CDATA #IMPLIED
    abstract CDATA #IMPLIED
    externalReferenceResolver NMTOKEN #IMPLIED
>

<!ELEMENT result-types (result-type+)>

<!ELEMENT result-type (param*)>
<!ATTLIST result-type
    name CDATA #REQUIRED
    class CDATA #REQUIRED
    default (true|false) "false"
>

<!ELEMENT interceptors (interceptor|interceptor-stack)+>

<!ELEMENT interceptor (param*)>
<!ATTLIST interceptor
    name CDATA #REQUIRED
    class CDATA #REQUIRED
>

<!ELEMENT interceptor-stack (interceptor-ref*)>
<!ATTLIST interceptor-stack
    name CDATA #REQUIRED
>

<!ELEMENT interceptor-ref (param*)>
<!ATTLIST interceptor-ref
    name CDATA #REQUIRED
>

<!ELEMENT default-interceptor-ref (#PCDATA)>
<!ATTLIST default-interceptor-ref
    name CDATA #REQUIRED
>

<!ELEMENT default-action-ref (#PCDATA)>
<!ATTLIST default-action-ref
    name CDATA #REQUIRED
>

<!ELEMENT default-class-ref (#PCDATA)>
<!ATTLIST default-class-ref
    class CDATA #REQUIRED
>

<!ELEMENT global-results (result+)>

<!ELEMENT global-exception-mappings (exception-mapping+)>

<!ELEMENT action (param|result|interceptor-ref|exception-mapping)*>
<!ATTLIST action
    name CDATA #REQUIRED
    class CDATA #IMPLIED
    method CDATA #IMPLIED
    converter CDATA #IMPLIED
>

<!ELEMENT param (#PCDATA)>
<!ATTLIST param
    name CDATA #REQUIRED
>

<!ELEMENT result (#PCDATA|param)*>
<!ATTLIST result
    name CDATA #IMPLIED
    type CDATA #IMPLIED
>

<!ELEMENT exception-mapping (#PCDATA|param)*>
<!ATTLIST exception-mapping
    name CDATA #IMPLIED
    exception CDATA #REQUIRED
    result CDATA #REQUIRED
>

<!ELEMENT include (#PCDATA)>
<!ATTLIST include
    file CDATA #REQUIRED
>

<!ELEMENT bean (#PCDATA)>
<!ATTLIST bean
    type CDATA #IMPLIED
    name CDATA #IMPLIED
    class CDATA #REQUIRED
    scope CDATA #IMPLIED
    static CDATA #IMPLIED
    optional CDATA #IMPLIED
>

<!ELEMENT constant (#PCDATA)>
<!ATTLIST constant
    name CDATA #REQUIRED
    value CDATA #REQUIRED
>

<!ELEMENT unknown-handler-stack (unknown-handler-ref*)>
<!ELEMENT unknown-handler-ref (#PCDATA)>
<!ATTLIST unknown-handler-ref
    name CDATA #REQUIRED
>

<!-- END SNIPPET: strutsDtd -->