how to deploy react app in tomcat server

JavaScript
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.frugalis</groupId>
    <artifactId>Frugalis</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>war</packaging>
 
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <npm.output.directory>build</npm.output.directory>
    </properties>
 
    <build>
        <finalName>${project.artifactId}</finalName>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-war-plugin</artifactId>
                <version>2.1.1</version>
                <configuration>
                    <webResources>
                        <resource>
                            <directory>${npm.output.directory}</directory>
                        </resource>
                    </webResources>
                    <webXml>${basedir}/web.xml</webXml>
                </configuration>
            </plugin>
 
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>exec-maven-plugin</artifactId>
                <version>1.3.2</version>
                <executions>
                    <execution>
                        <id>npm run build (compile)</id>
                        <goals>
                            <goal>exec</goal>
                        </goals>
                        <phase>compile</phase>
                        <configuration>
                            <executable>npm</executable>
                            <arguments>
                                <argument>run</argument>
                                <argument>build</argument>
                            </arguments>
                        </configuration>
                    </execution>
 
                </executions>
 
                <configuration>
                    <environmentVariables>
                        <CI>false</CI>
                        <!-- The following parameters create an NPM sandbox for CI -->
                        <NPM_CONFIG_PREFIX>${basedir}/npm</NPM_CONFIG_PREFIX>
                        <NPM_CONFIG_CACHE>${NPM_CONFIG_PREFIX}/cache</NPM_CONFIG_CACHE>
                        <NPM_CONFIG_TMP>${project.build.directory}/npmtmp</NPM_CONFIG_TMP>
                    </environmentVariables>
                </configuration>
            </plugin>
        </plugins>
    </build>
 
    <profiles>
        <profile>
            <id>local</id>
            <activation>
                <activeByDefault>true</activeByDefault>
            </activation>
            <build>
                <plugins>
                    <plugin>
                        <groupId>org.codehaus.mojo</groupId>
                        <artifactId>exec-maven-plugin</artifactId>
 
                        <configuration>
                            <environmentVariables>
                                <PUBLIC_URL>http://localhost:8080/${project.artifactId}</PUBLIC_URL>
                                <REACT_APP_ROUTER_BASE>/${project.artifactId}</REACT_APP_ROUTER_BASE>
                            </environmentVariables>
                        </configuration>
                    </plugin>
                </plugins>
            </build>
        </profile>
 
        <profile>
            <id>prod</id>
            <build>
                <plugins>
                    <plugin>
                        <groupId>org.codehaus.mojo</groupId>
                        <artifactId>exec-maven-plugin</artifactId>
 
                        <configuration>
                            <environmentVariables>
                                <PUBLIC_URL>http://frugalisminds.com/${project.artifactId}</PUBLIC_URL>
                                <REACT_APP_ROUTER_BASE>/${project.artifactId}</REACT_APP_ROUTER_BASE>
                            </environmentVariables>
                        </configuration>
                    </plugin>
                </plugins>
            </build>
        </profile>
    </profiles>
</project>
</span>
import React, { Component } from 'react';
import {
    BrowserRouter,
    Link,
    Route,
    Switch
} from 'react-router-dom';
 
import Home from './Home.jsx';
import ContactUs from './ContactUs.jsx';
import Blog  from './Blog.jsx';
 
class App extends Component {
  render() {
    return (
      <div className="App">
        <div className="App-header">
          <h2>Welcome to React</h2>
        </div>
        <BrowserRouter basename={process.env.REACT_APP_ROUTER_BASE || ''}>
          <div>
            <ul className="nav">
              <li><Link to="/">Home</Link></li>
              <li><Link to="/blog">Blog</Link></li>
              <li><Link to="/contactUs">Contact Us</Link></li>
            </ul>
            <Switch>
              <Route path="/blog" component={Blog}/>
              <Route path="/contactUs" component={ContactUs}/>
              <Route path="/" component={Home}/>
            </Switch>
          </div>
        </BrowserRouter>
      </div>
    );
  }
}
 
export default App;
<span style="font-family: helvetica, arial, sans-serif;"><project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.frugalis</groupId>
    <artifactId>Frugalis</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>war</packaging>
 
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <npm.output.directory>build</npm.output.directory>
    </properties>
 
    <build>
        <finalName>${project.artifactId}</finalName>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-war-plugin</artifactId>
                <version>2.1.1</version>
                <configuration>
                    <webResources>
                        <resource>
                            <directory>${npm.output.directory}</directory>
                        </resource>
                    </webResources>
                    <webXml>${basedir}/web.xml</webXml>
                </configuration>
            </plugin>
 
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>exec-maven-plugin</artifactId>
                <version>1.3.2</version>
                <executions>
                    <execution>
                        <id>npm run build (compile)</id>
                        <goals>
                            <goal>exec</goal>
                        </goals>
                        <phase>compile</phase>
                        <configuration>
                            <executable>npm</executable>
                            <arguments>
                                <argument>run</argument>
                                <argument>build</argument>
                            </arguments>
                        </configuration>
                    </execution>
 
                </executions>
 
                <configuration>
                    <environmentVariables>
                        <CI>false</CI>
                        <!-- The following parameters create an NPM sandbox for CI -->
                        <NPM_CONFIG_PREFIX>${basedir}/npm</NPM_CONFIG_PREFIX>
                        <NPM_CONFIG_CACHE>${NPM_CONFIG_PREFIX}/cache</NPM_CONFIG_CACHE>
                        <NPM_CONFIG_TMP>${project.build.directory}/npmtmp</NPM_CONFIG_TMP>
                    </environmentVariables>
                </configuration>
            </plugin>
        </plugins>
    </build>
 
    <profiles>
        <profile>
            <id>local</id>
            <activation>
                <activeByDefault>true</activeByDefault>
            </activation>
            <build>
                <plugins>
                    <plugin>
                        <groupId>org.codehaus.mojo</groupId>
                        <artifactId>exec-maven-plugin</artifactId>
 
                        <configuration>
                            <environmentVariables>
                                <PUBLIC_URL>http://localhost:8080/${project.artifactId}</PUBLIC_URL>
                                <REACT_APP_ROUTER_BASE>/${project.artifactId}</REACT_APP_ROUTER_BASE>
                            </environmentVariables>
                        </configuration>
                    </plugin>
                </plugins>
            </build>
        </profile>
 
        <profile>
            <id>prod</id>
            <build>
                <plugins>
                    <plugin>
                        <groupId>org.codehaus.mojo</groupId>
                        <artifactId>exec-maven-plugin</artifactId>
 
                        <configuration>
                            <environmentVariables>
                                <PUBLIC_URL>http://frugalisminds.com/${project.artifactId}</PUBLIC_URL>
                                <REACT_APP_ROUTER_BASE>/${project.artifactId}</REACT_APP_ROUTER_BASE>
                            </environmentVariables>
                        </configuration>
                    </plugin>
                </plugins>
            </build>
        </profile>
    </profiles>
</project>
</span>
<span style="font-family: helvetica, arial, sans-serif;">{
  "name": "App",
  "version": "0.1.0",
   "homepage":"http://localhost:8080/sampleapp",
  "private": true,
  "dependencies": {
    "react": "^16.3.1"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test --env=jsdom",
    "eject": "react-scripts eject"
  }
}</span>
<web-app xmlns="http://java.sun.com/xml/ns/j2ee"
	      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	      xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
	      http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
	      version="2.4">
 
  <display-name>frugalis</display-name>
 
  <error-page>
    <error-code>404</error-code>
    <location>/index.html</location>
  </error-page>
  
</web-app>
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