Unable to start ServletWebServerApplicationContext due to missing ServletWebServerFactory bean

今天把前天的sprinngboot项目和另外一个同事的springboot项目整合，结果整合完毕启动报错。网上的方法都试过了，都没有解决这个问题。后来我就把pom文件中的springboot版本由2.1.1.RELEASE换回整合前的1.5.8.RELEASE，再启动就正常起来了。所以降低到2.0一下的版本是一种解决方案。

报错信息如下：


  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v2.1.1.RELEASE)

2019-01-16 16:34:52.215 [restartedMain] INFO  telemetry.server.Application - Starting Application on zhanglifeng with PID 27308 (D:\gccp_WorkSpace\TelemetryServer\target\classes started by Shinelon in D:\gccp_WorkSpace\TelemetryServer)
2019-01-16 16:34:52.219 [restartedMain] INFO  telemetry.server.Application - No active profile set, falling back to default profiles: default
2019-01-16 16:34:52.274 [restartedMain] INFO  o.s.b.d.env.DevToolsPropertyDefaultsPostProcessor - Devtools property defaults active! Set 'spring.devtools.add-properties' to 'false' to disable
2019-01-16 16:34:52.274 [restartedMain] INFO  o.s.b.d.env.DevToolsPropertyDefaultsPostProcessor - For additional web related logging consider setting the 'logging.level.web' property to 'DEBUG'
2019-01-16 16:34:53.201 [restartedMain] WARN  org.mybatis.spring.mapper.ClassPathMapperScanner - No MyBatis mapper was found in '[telemetry.server]' package. Please check your configuration.
2019-01-16 16:34:53.436 [restartedMain] INFO  o.s.d.r.config.RepositoryConfigurationDelegate - Bootstrapping Spring Data repositories in DEFAULT mode.
2019-01-16 16:34:53.514 [restartedMain] INFO  o.s.d.r.config.RepositoryConfigurationDelegate - Finished Spring Data repository scanning in 70ms. Found 2 repository interfaces.
2019-01-16 16:34:53.943 [restartedMain] INFO  o.s.c.s.PostProcessorRegistrationDelegate$BeanPostProcessorChecker - Bean 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration' of type [org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration$$EnhancerBySpringCGLIB$$ba7f6885] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2019-01-16 16:34:53.977 [restartedMain] WARN  o.s.b.w.s.c.AnnotationConfigServletWebServerApplicationContext - Exception encountered during context initialization - cancelling refresh attempt: org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is org.springframework.context.ApplicationContextException: Unable to start ServletWebServerApplicationContext due to missing ServletWebServerFactory bean.
2019-01-16 16:34:53.989 [restartedMain] INFO  o.s.b.a.l.ConditionEvaluationReportLoggingListener - 

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2019-01-16 16:34:53.993 [restartedMain] ERROR org.springframework.boot.SpringApplication - Application run failed
org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is org.springframework.context.ApplicationContextException: Unable to start ServletWebServerApplicationContext due to missing ServletWebServerFactory bean.
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:157)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:540)
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:142)
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:775)
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:316)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1260)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1248)
	at telemetry.server.Application.main(Application.java:22)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49)
Caused by: org.springframework.context.ApplicationContextException: Unable to start ServletWebServerApplicationContext due to missing ServletWebServerFactory bean.
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.getWebServerFactory(ServletWebServerApplicationContext.java:206)
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.createWebServer(ServletWebServerApplicationContext.java:180)
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:154)
	... 13 common frames omitted

我的springboot项目结构如下：
Unable to start ServletWebServerApplicationContext due to missing ServletWebServerFactory bean
Application.java：

package telemetry.server;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

/**
 * 配置除去了自动配置数据源的类-DataSourceAutoConfiguration，因为
 * 这个注解会把sping的配置的数据源全部都自动注入，不会默认注入一个，当使用其他数据源时再调用另外的数据源。
 * @author Administrator
 *
 */

@Controller
@SpringBootApplication(exclude={DataSourceAutoConfiguration.class})
public class Application  /*extends SpringBootServletInitializer*/{

	public static void main(String[] args) {
		SpringApplication.run(Application.class, args);
	}

	/*@Override
	protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
		 return builder.sources(Application.class);
	}*/
	
    @RequestMapping("/")
    @ResponseBody
    public String home() {
        return "Minecraft Telemtry start success !";
    }
}

对应pom.xml配置文件：

<?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>
	<groupId>org.jdcloud.springhbase</groupId>
	<artifactId>TelemetryServer</artifactId>
	<version>1.0-SNAPSHOT</version>
	<packaging>war</packaging>
	<!-- 增加父pom ,spring-boot-starter-parent包含了大量配置好的依赖管理，他是个特殊的starter,它提供了有用的maven默认设置 -->
	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>1.5.8.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
	</parent>
	<!-- Spring默认使用jdk1.6，如果你想使用jdk1.8，你需要在pom.xml的属性里面添加java.version，如下： -->
	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
		<tomcat.version>7.0.72</tomcat.version>
		<java.version>1.8</java.version>
		<spring.boot.version>1.5.8.RELEASE</spring.boot.version>
	</properties>

	<!-- Spring通过添加spring-boot-starter-*这样的依赖就能支持具体的某个功能。 -->
	<!-- 我们这个示例最终是要实现web功能，所以添加的是这个依赖。 -->
	<dependencies>
		<dependency>
			<!-- 指定为Web应用，并启动一个内嵌的Servlet容器（默认是Tomcat）用于处理HTTP请求 -->
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
			 <exclusions>
		        <exclusion>
		            <groupId>org.springframework.boot</groupId>
		            <artifactId>spring-boot-starter-tomcat</artifactId>
		        </exclusion>
		    </exclusions>
		</dependency>
		
		<!-- springboot单元测试 -->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</dependency>
		
		<!-- lombok插件,方便model对象的处理,不用写get,set方法。 -->
		<dependency>
			<groupId>org.projectlombok</groupId>
			<artifactId>lombok</artifactId>
		</dependency>
		
		<dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
		
		<!-- https://mvnrepository.com/artifact/com.alibaba/fastjson -->
		<dependency>
		    <groupId>com.alibaba</groupId>
		    <artifactId>fastjson</artifactId>
		    <version>1.2.47</version>
		</dependency>	
		
		<!-- Mybatis的jar包 -->
		<dependency>
			<groupId>org.mybatis.spring.boot</groupId>
			<artifactId>mybatis-spring-boot-starter</artifactId>
			<version>1.1.1</version>
		</dependency>
		
		<!-- 添加mongodb依赖 -->
		 <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-mongodb</artifactId>
        </dependency>
		
		<!-- 设置为热部署 -->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-devtools</artifactId>
			<optional>true</optional>
		</dependency>
		
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-configuration-processor</artifactId>
			<optional>true</optional>
		</dependency>

		<dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-tomcat</artifactId>
            <!--打包的时候可以不用包进去，别的设施会提供。事实上该依赖理论上可以参与编译，测试，运行等周期。     相当于compile，但是打包阶段做了exclude操作-->
            <scope>provided</scope>
	    </dependency>
	    
	</dependencies>

	<build>
		<!-- 打包后的jar包名称 -->
		<finalName>TelemetryServer</finalName>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<!-- 必须要的SpringBoot继承的maven插件，缺少了无法打包jar。 -->
				<artifactId>spring-boot-maven-plugin</artifactId>
				<dependencies>
					<!-- 在我们开发过程中，我们需要经常修改，为了避免重复启动项目，我们可以启用热部署。 Spring-Loaded项目提供了强大的热部署功能， 
						添加/删除/修改 方法/字段/接口/枚举 等代码的时候都可以热部署，速度很快，很方便。 想在Spring Boot中使用该功能非常简单 ，就是在spring-boot-maven-plugin插件下面添加依赖： -->
					<dependency>
						<groupId>org.springframework</groupId>
						<artifactId>springloaded</artifactId>
						<version>1.2.5.RELEASE</version>
					</dependency>
				</dependencies>
			</plugin>
		</plugins>
	</build>
</project>