diff --git a/spring-boot-demo-war/pom.xml b/spring-boot-demo-war/pom.xml
index 995e508..be8ca17 100644
--- a/spring-boot-demo-war/pom.xml
+++ b/spring-boot-demo-war/pom.xml
@@ -1,56 +1,64 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <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>
+  <modelVersion>4.0.0</modelVersion>
 
-    <artifactId>spring-boot-demo-war</artifactId>
+  <artifactId>spring-boot-demo-war</artifactId>
+  <version>1.0.0-SNAPSHOT</version>
+  <!-- 若需要打成 war 包，则需要将打包方式改成 war -->
+  <packaging>war</packaging>
+
+  <name>spring-boot-demo-war</name>
+  <description>Demo project for Spring Boot</description>
+
+  <parent>
+    <groupId>com.xkcoding</groupId>
+    <artifactId>spring-boot-demo</artifactId>
     <version>1.0.0-SNAPSHOT</version>
-    <!-- 若需要打成 war 包，则需要将打包方式改成 war -->
-    <packaging>war</packaging>
-
-	<name>spring-boot-demo-war</name>
-	<description>Demo project for Spring Boot</description>
-
-	<parent>
-		<groupId>com.xkcoding</groupId>
-		<artifactId>spring-boot-demo</artifactId>
-		<version>1.0.0-SNAPSHOT</version>
-	</parent>
-
-	<properties>
-		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-		<java.version>1.8</java.version>
-	</properties>
-
-    <dependencies>
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
-        </dependency>
-
-        <!-- 若需要打成 war 包，则需要将 tomcat 引入，scope 设置为 provided -->
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-tomcat</artifactId>
-            <scope>provided</scope>
-        </dependency>
-
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-test</artifactId>
-			<scope>test</scope>
-		</dependency>
-	</dependencies>
-
-	<build>
-		<finalName>spring-boot-demo-war</finalName>
-		<plugins>
-			<plugin>
-				<groupId>org.springframework.boot</groupId>
-				<artifactId>spring-boot-maven-plugin</artifactId>
-			</plugin>
-		</plugins>
-	</build>
+  </parent>
+
+  <properties>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+    <java.version>1.8</java.version>
+  </properties>
+
+  <dependencies>
+    <dependency>
+      <groupId>org.springframework.boot</groupId>
+      <artifactId>spring-boot-starter-web</artifactId>
+    </dependency>
+
+    <!-- 若需要打成 war 包，则需要将 tomcat 引入，scope 设置为 provided -->
+    <dependency>
+      <groupId>org.springframework.boot</groupId>
+      <artifactId>spring-boot-starter-tomcat</artifactId>
+      <scope>provided</scope>
+    </dependency>
+
+    <dependency>
+      <groupId>org.springframework.boot</groupId>
+      <artifactId>spring-boot-starter-test</artifactId>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+
+  <build>
+    <finalName>spring-boot-demo-war</finalName>
+    <plugins>
+      <plugin>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-maven-plugin</artifactId>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-war-plugin</artifactId>
+        <version>2.6</version>
+        <configuration>
+          <failOnMissingWebXml>false</failOnMissingWebXml>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
 
 </project>