cannot change version of project facet Dynamic Web Module to 3.
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1、先勾选change java从1.5到1.8 点apply ,然后再勾选Dynamic Web Module3.0,选择下面的further 设置好输出文件夹,最后点击应用
2、项目中maven dependence找不到:项目右键 ---maven ---update project
3、项目中配置错误:maven Dynamic web module 3.0 requires java 1.6 or newer 解决方案:
- <!-- 官方文档 -->
- <!-- http://maven.apache.org/plugins/maven-compiler-plugin/examples/set-compiler-source-and-target.html -->
- <build>
- <plugins>
- <plugin>
- <groupId>org.apache.maven.plugins</groupId>
- <artifactId>maven-compiler-plugin</artifactId>
- <version>3.3</version>
- <configuration>
- <!-- 指定source和target的版本 -->
- <source>1.8</source>
- <target>1.8</target>
- </configuration>
- </plugin>
- </plugins>
- </build>
4、https://github.com/源码网站
5、项目创建是遇到could not caculate build plan
Could not calculate build plan: Failure to transfer org.apache.maven.plugins:maven-surefire-plugin:pom:2.7.1 from http://repo1.maven.org/maven2 was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced. Original error: Could not transfer artifact org.apache.maven.plugins:maven-surefire-plugin:pom:2.7.1 from/to central (http://repo1.maven.org/maven2): Access denied to http://repo1.maven.org/maven2/org/apache/maven/plugins/maven-surefire-plugin/2.7.1/maven-surefire-plugin-2.7.1.pom. Error code 407, Proxy Authentication Required ( The ISA Server requires authorization to fulfill the request. Access to the Web Proxy service is denied. ) log4j-test01 Unknown Maven Problem
解决方法如下:
(1)将C:\User\.m2\repository\org\apache\maven\plugins\maven-deploy-plugin目录下的文件夹删除,
(2)然后右击项目Maven->Update Project->Update Dependencies(如果更新无效,选择强制更新如下图)
6、web.xml is missing and <failOnMissingWebXml> is set to true错误解决方案
解决方案:
1.在视图Project Explorer中,选择Deployment Descriptor项目并鼠标右键。
2.选择Generate Deployment Descriptor Stub,如图2。
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