maven项目中改Dynamic Web Module版本和jdk版本

矫情吗；* 2022-05-31 03:36 201阅读 0赞

![SouthEast][]

默认的Dynamic Web Module为2.3，使用Tomcat 8，需要修改为3.1

修改方法：

1. maven工程所在目录下org.eclipse.wst.common.project.facet.core.xml

![SouthEast 1][]

编辑内容，如下所示

<?xml version="1.0" encoding="UTF-8"?>
    <faceted-project>
      <runtime name="Apache Tomcat v8.0"/>
      <fixed facet="wst.jsdt.web"/>
      <installed facet="jst.web" version="2.3"/>
      <installed facet="wst.jsdt.web" version="1.0"/>
      <installed facet="java" version="1.5"/>
    </faceted-project>

改为

<?xml version="1.0" encoding="UTF-8"?>
    <faceted-project>
      <runtime name="Apache Tomcat v8.0"/>
      <fixed facet="wst.jsdt.web"/>
      <installed facet="jst.web" version="3.1"/>
      <installed facet="wst.jsdt.web" version="1.0"/>
      <installed facet="java" version="1.8"/>
    </faceted-project>

2.maven工程下的web.xml文件修改为

<?xml version="1.0" encoding="UTF-8"?>
    <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
           xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
           version="3.1" metadata-complete="true">
    </web-app>

3.在pom.xml文件中修改build节点，添加如下内容

<plugins>
           <plugin>
                  <groupId>org.apache.maven.plugins</groupId>
                  <artifactId>maven-compiler-plugin</artifactId>
                  <configuration>
                         <source>1.8</source>
                         <target>1.8</target>
                  </configuration>
           </plugin>
    </plugins>

4.修改后，在项目上右键，找到Maven属性下的Update Project即可  
  
![SouthEast 2][]

![SouthEast 3][]

[SouthEast]: /images/20220531/ff27fb2f774947dd985432bc7c503f12.png
[SouthEast 1]: /images/20220531/19389ae4eead4fc8bf63ea5878ff2f84.png
[SouthEast 2]: /images/20220531/598139144c3743ef83968c9d54f5414f.png
[SouthEast 3]: /images/20220531/20536ff066b547a9a4af6e79f30f1ec2.png