Could not find artifact org.apache.tomcat.maven:tomcat7-maven-plugin:pom.....报红

在pom.xml文件中直接暴力配置 

<build>
        <plugins>
            <plugin>
                <groupId>org.apache.tomcat.maven</groupId>
                <artifactId>tomcat7-maven-plugin</artifactId>
                <version>2.1</version>
                <configuration>
                    <path>/shiro</path>
                    <port>8080</port>
                    <uriEncoding>UTF-8</uriEncoding>
                    <url>http://localhost:8080/shiro</url>
                    <server>Tomcat7</server>
                </configuration>
            </plugin>

            <!-- 编译插件 -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.1</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>
        </plugins>
    </build>

解决