Spring Boot部署到Tomcat过程中遇到的问题汇总

<dependency> 
<groupId>org.springframework.boot</groupId> 
  <artifactId>spring-boot-starter-tomcat</artifactId> 
  <scope>provided</scope> 
 </dependency> 

@SpringBootApplication(exclude = { 
DataSourceAutoConfiguration.class, 
DataSourceTransactionManagerAutoConfiguration.class, HibernateJpaAutoConfiguration.class}) 
public class Application extends SpringBootServletInitializer { 
 @Override 
 protected SpringApplicationBuilder configure(SpringApplicationBuilder application) { 
 return application.sources(Application.class); 
 } 
 public static void main(String[] args) throws Exception { 
 SpringApplication.run(Application.class, args); 
 } 
} 

<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/maven-v4_0_0.xsd"> 
 <modelVersion>4.0.0</modelVersion> 
 <artifactId>wechatServer</artifactId> 
 <packaging>war</packaging> 
 <url>http://maven.apache.org</url> 
 <!-- Inherit defaults from Spring Boot --> 
 <parent> 
 <groupId>org.springframework.boot</groupId> 
 <artifactId>spring-boot-starter-parent</artifactId> 
 <version>1.4.0.RELEASE</version> 
 </parent> 
 <properties> 
 <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> 
 <java.version>1.8</java.version> 
 </properties> 
 <dependencies> 
 <dependency> 
<groupId>org.springframework.boot</groupId> 
  <artifactId>spring-boot-starter-web</artifactId> 
  <!-- 排除内置容器，排除内置容器导出成war包可以让外部容器运行spring-boot项目 --> 
 </dependency> 
 <dependency> 
<groupId>org.springframework.boot</groupId> 
  <artifactId>spring-boot-starter-tomcat</artifactId> 
  <scope>provided</scope> 
 </dependency> 
 <dependency> 
  <groupId>javax.servlet</groupId> 
  <artifactId>javax.servlet-api</artifactId> 
 </dependency> 
 <dependency> 
  <groupId>mysql</groupId> 
  <artifactId>mysql-connector-java</artifactId> 
 </dependency> 
 <dependency> 
<groupId>org.springframework.boot</groupId> 
  <artifactId>spring-boot-starter-jdbc</artifactId> 
 </dependency> 
 <dependency> 
  <groupId>dom4j</groupId> 
  <artifactId>dom4j</artifactId> 
  <version>1.6.1</version> 
 </dependency> 
 <dependency> 
<groupId>com.thoughtworks.xstream</groupId> 
  <artifactId>xstream</artifactId> 
  <version>1.4.10</version> 
 </dependency> 
 <dependency> 
<groupId>org.springframework.boot</groupId> 
  <artifactId>spring-boot-devtools</artifactId> 
  <optional>true</optional><!-- optional=true,依赖不会传递，该项目依赖devtools；之后依赖myboot项目的项目如果想要使用devtools，需要重新引入 --> 
 </dependency> 
 </dependencies> 
 <!--修改打包设置 --> 
 <build> 
 <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>2.4</version> 
  <configuration> 
<encoding>${project.build.sourceEncoding}</encoding> 
   <skipTests>true</skipTests> 
   <!-- 打成war包时名子 --> 
   <warName>wechatServer</warName> 
   <!-- mave时启用的main路径（因为其他包里面测试时也加了main函数） --> 
   <mainClass>${start-class}</mainClass> 
   <skip>true</skip><!-- 跳过测试 --> 
<testFailureIgnore>true</testFailureIgnore> 
<failOnMissingWebXml>false</failOnMissingWebXml> 
  </configuration> 
  </plugin> 
 </plugins> 
 </build> 
</project> 

package wechatService.app; 
import org.springframework.boot.SpringApplication; 
import org.springframework.boot.autoconfigure.SpringBootApplication; 
import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration; 
import org.springframework.boot.autoconfigure.jdbc.DataSourceTransactionManagerAutoConfiguration; 
import org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaAutoConfiguration; 
import org.springframework.boot.builder.SpringApplicationBuilder; 
import org.springframework.boot.web.support.SpringBootServletInitializer; 
import org.springframework.web.bind.annotation.RequestMapping; 
import org.springframework.web.bind.annotation.RestController; 
@SpringBootApplication(exclude = { 
DataSourceAutoConfiguration.class, 
DataSourceTransactionManagerAutoConfiguration.class, HibernateJpaAutoConfiguration.class}) 
public class Application extends SpringBootServletInitializer { 
 @Override 
 protected SpringApplicationBuilder configure(SpringApplicationBuilder application) { 
 return application.sources(Application.class); 
 } 
 public static void main(String[] args) throws Exception { 
 SpringApplication.run(Application.class, args); 
 } 
 } 

@RestController 
@RequestMapping 
public class LoginController { 
 @RequestMapping("/hello/{myName}") 
 String index(@PathVariable String myName) { 
 return "Hello "+myName+"!!!"; 
 } 
} 

server.port = 80