摘要
解决Cannot change version of project facet Dynamic web module to 3.0
maven facet Dynamic web
目录[-]
- 问题描述
- 解决这个问题的步骤如下：
- 1.把Servlet改成3.0，打开项目的web.xml
- 2.修改项目的设置，在Navigator下打开项目.settings目录下的org.eclipse.jdt.core.prefs
- 3. 打开org.eclipse.wst.common.component
- 4. 打开org.eclipse.wst.common.project.facet.core.xml
- 最后的效果如图：
问题描述
用Eclipse创建Maven结构的web项目的时候选择了Artifact Id为maven-artchetype-webapp，由于这个catalog比较老，用的servlet还是2.3的，而一般现在都是用3.0，在Project Facets里面修改Dynamic web module为3.0的时候就会出现Cannot change version of project facet Dynamic web module to 3.0，如图：
其实在右边可以看到改到3.0需要的条件以及有冲突的facets，4
解决这个问题的步骤如下：
1.把Servlet改成3.0，打开项目的web.xml
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<?
xml
version
=
"1.0"
encoding
=
"UTF-8"
?>
<
web-app
xmlns:xsi
=
"http://www.w3.org/2001/XMLSchema-instance"
xmlns
=
"http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation
=
"http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
id
=
"schedule-console"
version
=
"3.0"
>
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2.修改项目的设置，在Navigator下打开项目.settings目录下的org.eclipse.jdt.core.prefs
把1.5改成1.7
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eclipse.preferences.version=1
org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.7
org.eclipse.jdt.core.compiler.compliance=1.7
org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
org.eclipse.jdt.core.compiler.problem.forbiddenReference=warning
org.eclipse.jdt.core.compiler.source=1.7
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3. 打开org.eclipse.wst.common.component
本文件不用修改
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<?
xml
version
=
"1.0"
encoding
=
"UTF-8"
?><
project-modules
id
=
"moduleCoreId"
project-version
=
"1.5.0"
>
<
wb-module
deploy-name
=
"xband-schedule-console"
>
<
wb-resource
deploy-path
=
"/"
source-path
=
"/target/m2e-wtp/web-resources"
/>
<
wb-resource
deploy-path
=
"/"
source-path
=
"/src/main/webapp"
tag
=
"defaultRootSource"
/>
<
wb-resource
deploy-path
=
"/WEB-INF/classes"
source-path
=
"/src/main/java"
/>
<
wb-resource
deploy-path
=
"/WEB-INF/classes"
source-path
=
"/src/main/resources"
/>
<
dependent-module
archiveName
=
"xband-schedule-core-1.0-SNAPSHOT.jar"
deploy-path
=
"/WEB-INF/lib"
handle
=
"module:/resource/xband-schedule-core/xband-schedule-core"
>
<
dependency-type
>uses</
dependency-type
>
</
dependent-module
>
<
property
name
=
"java-output-path"
value
=
"/xband-schedule-console/target/classes"
/>
<
property
name
=
"context-root"
value
=
"schedule-console"
/>
</
wb-module
>
</
project-modules
>
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4. 打开org.eclipse.wst.common.project.facet.core.xml
把1.5改成1.7
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<?
xml
version
=
"1.0"
encoding
=
"UTF-8"
?>
<
faceted-project
>
<
fixed
facet
=
"wst.jsdt.web"
/>
<
installed
facet
=
"jst.web"
version
=
"3.0"
/>
<
installed
facet
=
"wst.jsdt.web"
version
=
"1.0"
/>
<
installed
facet
=
"java"
version
=
"1.7"
/>
</
faceted-project
>
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最后的效果如图：