The idea adds the Web. XML configuration file to an issue that was not found in the Web. xml file that was encountered in Tomcat startup

1. How to add a configuration file for Web. XML to the war project in idea

The idea of creating a war project through Maven did not specify a folder that was WebApp caused the project to be created without webapp. In fact, the War project is under the "Project name/src/main" directory.

Just create a webapp/web-inf/web.xml under this project.

2, if you do not put the Web. XML in "project name/src/main/webapp/web-inf/web.xml", then Tomcat will start error:

MAVEN Package Error message: "Error assembling War:webxml attribute is required" or pre-existing web-inf/web.xml if executing in update mo De

Reason:

The default webroot for MAVEN packaged Web projects is at Src\main\webapp. If the Web. XML is not found in this directory, the above exception is thrown.

WORKAROUND: You need to add the <webResources> configuration to the Pom.xml as follows:

1   <plugin> 2                 <groupId>org.apache.maven.plugins</groupId> 3                 < Artifactid>maven-war-plugin</artifactid> 4                 <version>2.1.1</version> 5                 <configuration> 6  7                     <webxml>src\webapp\web-inf\web.xml</webxml > 8  9                 </configuration>             </plugin>

The position of the <webXml> here is relative to the path of the project, and the parent is the directory of the project name:

The path to Web. XML is

Project Name \src\webapp\web-inf\web.xml

Add the Web. XML configuration file to idea and the Web. xml file encountered in Tomcat startup is not found