Spring Boot构建应用

一、Spring Boot简介

主要特性：

1. Spring Boot Starter：它将常用的依赖分组进行整合，将其合并到一个依赖中，这样就可以一次性添加到项目到Maven构建中；
2. 自动配置：Spring Boot的自动配置特性利用了Spring4对条件化配置对支持，合理地推测应用所需要的bean并自动配置它们；
3. 命令行接口（CLI）
4. Actuator

自动配置

Spring Boot的Starter减少了构建中依赖列表的长度，而Spring Boot的自动配置功能则削减了Spring配置的数量。它在实现时，会考虑应用中的其他因素并推断你需要的Spring配置。

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二、使用Spring Boot构建应用

我们的应用是一个简单的联系人列表。（Contacts）

Maven构建

pom.xml配置：

<?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>com.mook</groupId>    <artifactId>contacts</artifactId>    <version>1.0-SNAPSHOT</version>    <packaging>jar</packaging>    <repositories>        <repository>            <!-- Maven 自带的中央仓库使用的Id为central 如果其他的仓库声明也是用该Id            就会覆盖中央仓库的配置 -->             <id>mvnrepository</id>            <name>mvnrepository</name>            <url>http://www.mvnrepository.com/</url>            <layout>default</layout>            <releases>                <enabled>true</enabled>            </releases>            <snapshots>                <enabled>false</enabled>            </snapshots>        </repository>        <repository>            <id>springsource-repos</id>            <name>SpringSource Repository</name>            <url>http://repo.spring.io/release/</url>        </repository>        <repository>            <id>central-repos</id>            <name>Central Repository</name>            <url>http://repo.maven.apache.org/maven2</url>        </repository>        <repository>            <id>central-repos2</id>            <name>Central Repository 2</name>            <url>http://repo1.maven.org/maven2/</url>        </repository>    </repositories>    <!--继承自spring-boot-starter-parent-->    <parent>        <groupId>org.springframework.boot</groupId>        <artifactId>spring-boot-starter-parent</artifactId>        <version>1.1.4.RELEASE</version>    </parent>    <dependencies>        <dependency>            <groupId>org.springframework.boot</groupId>            <artifactId>spring-boot-starter-web</artifactId>        </dependency>        <dependency>            <groupId>org.thymeleaf</groupId>            <artifactId>thymeleaf-spring4</artifactId>        </dependency>        <dependency>            <groupId>org.springframework.boot</groupId>            <artifactId>spring-boot-starter-jdbc</artifactId>        </dependency>        <dependency>            <groupId>com.h2database</groupId>            <artifactId>h2</artifactId>        </dependency>    </dependencies>    <build>        <plugins>            <plugin>                <groupId>org.springframework.boot</groupId>                <artifactId>spring-boot-maven-plugin</artifactId>            </plugin>        </plugins>    </build></project>

Maven构架有一个parent醒目，让项目的Maven构建基于spring-boot-starter-parent，这样的话，受益于Maven的依赖管理功能，对于项目中的很多依赖，就没有必要明确声明版本号了，因为版本号会从parent中继承得到。

项目的标准结构：

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处理请求

使用Spring MVC开发应用的WEB层，而Spring Boot的Web Starter能够将Spring MVC需要的所有内容一站式添加到构建中，其中版本号继承自parent。

编写控制类：ContactController

package contacts;import java.util.List;import java.util.Map;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;@Controller@RequestMapping("/")public class ContactController {    private ContactRepository contactRepo;    @Autowired    public ContactController(ContactRepository contactRepo) {        this.contactRepo = contactRepo;    }    @RequestMapping(method=RequestMethod.GET)    public String home(Map<String,Object> model) {        List<Contact> contacts = contactRepo.findAll();        model.put("contacts", contacts);        return "home";    }    @RequestMapping(method=RequestMethod.POST)    public String submit(Contact contact) {        contactRepo.save(contact);        return "redirect:/";    }}

模型类(POJO)：Contact

package contacts;public class Contact {  private Long id;  private String firstName;  private String lastName;  private String phoneNumber;  private String emailAddress;  public void setId(Long id) {    this.id = id;  }  public Long getId() {    return id;  }  public void setFirstName(String firstName) {    this.firstName = firstName;  }  public String getFirstName() {    return firstName;  }  public void setLastName(String lastName) {    this.lastName = lastName;  }  public String getLastName() {    return lastName;  }  public void setPhoneNumber(String phoneNumber) {    this.phoneNumber = phoneNumber;  }  public String getPhoneNumber() {    return phoneNumber;  }  public void setEmailAddress(String emailAddress) {    this.emailAddress = emailAddress;  }  public String getEmailAddress() {    return emailAddress;  }}

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创建视图

Thymeleaf的原生模板比JSP更加便于使用，而且它能够让我们以HTML的形式编写模板。
Spring Boot自动配置视图解析器、模板解析器、模板引擎。

控制类中的home()方法返回的逻辑视图名为home，所以模板文件应该命名为home.html，自动配置的模板解析器会在“src/main/resources/templates”下查找Thymeleaf模板。

Thymeleaf模板：home.html

<!DOCTYPE html><html xmlns:th="http://www.thymeleaf.org">  <head>    <title>Spring Boot Contacts</title>    <link rel="stylesheet" th:href="@{/style.css}" />  </head>  <body>    <h2>Spring Boot Contacts</h2>    <form method="POST">      <label for="firstName">First Name:</label>      <input type="text" name="firstName"></input><br/>      <label for="lastName">Last Name:</label>      <input type="text" name="lastName"></input><br/>      <label for="phoneNumber">Phone #:</label>      <input type="text" name="phoneNumber"></input><br/>      <label for="emailAddress">Email:</label>      <input type="text" name="emailAddress"></input><br/>      <input type="submit"></input>    </form>    <ul th:each="contact : ${contacts}">      <li>        <span th:text="${contact.firstName}">First</span>        <span th:text="${contact.lastName}">Last</span> :        <span th:text="${contact.phoneNumber}">phoneNumber</span>,        <span th:text="${contact.emailAddress}">emailAddress</span>      </li>    </ul>  </body></html>

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添加静态内容

当采用Spring Boot的Web自发配置来定义Spring MVC bean时，这些bean中包含了一个资源处理器，它会将“/**”映射到几个资源路径中。

• /META-INF/resources/
• /resources/
• /static/
• /public/

静态资源style.css样式表：

body {  background-color: #eeeeee;  font-family: sans-serif;}label {  display: inline-block;  width: 120px;  text-align: right;}

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持久化数据

使用H2数据库和JDBC（使用Spring的JdbcTemplate）
编写Repository类：

package contacts;import java.util.List;import java.sql.ResultSet;import java.sql.SQLException;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.jdbc.core.JdbcTemplate;import org.springframework.jdbc.core.RowMapper;import org.springframework.stereotype.Repository;@Repositorypublic class ContactRepository {  private JdbcTemplate jdbc;  @Autowired  public ContactRepository(JdbcTemplate jdbc) {    this.jdbc = jdbc;  }  public List<Contact> findAll() {    return jdbc.query(        "select id, firstName, lastName, phoneNumber, emailAddress " +        "from contacts order by lastName",        new RowMapper<Contact>() {          public Contact mapRow(ResultSet rs, int rowNum) throws SQLException {            Contact contact = new Contact();            contact.setId(rs.getLong(1));            contact.setFirstName(rs.getString(2));            contact.setLastName(rs.getString(3));            contact.setPhoneNumber(rs.getString(4));            contact.setEmailAddress(rs.getString(5));            return contact;          }        }      );  }  public void save(Contact contact) {    jdbc.update(        "insert into contacts " +        "(firstName, lastName, phoneNumber, emailAddress) " +        "values (?, ?, ?, ?)",        contact.getFirstName(), contact.getLastName(),        contact.getPhoneNumber(), contact.getEmailAddress());  }}

创建contacts表：
如果将该文件命名为schema.sql并将其放在类路径根下（“src/main/resources”），当应用启动时，就会找到这个文件并进行数据加载。

create table contacts (    id identity,    firstName varchar(30) not null,    lastName varchar(50) not null,    phoneNumber varchar(13),    emailAddress varchar(30));

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启动应用

初始化spring boot配置的启动类：

package contacts;import org.springframework.boot.autoconfigure.EnableAutoConfiguration;import org.springframework.boot.SpringApplication;import org.springframework.context.annotation.ComponentScan;@ComponentScan@EnableAutoConfigurationpublic class Application {    public static void main(String[] args) {        SpringApplication.run(Application.class, args);    } }

spring-boot-starter-web依赖会创建内嵌的Tomcat依赖，所以直接运行启动类即可。

控制台信息：

/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/bin/java -Didea.launcher.port=7532 "-Didea.launcher.bin.path=/Applications/IntelliJ IDEA.app/Contents/bin" -Dfile.encoding=UTF-8 -classpath "/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/charsets.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/deploy.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/ext/cldrdata.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/ext/dnsns.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/ext/jaccess.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/ext/jfxrt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/ext/localedata.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/ext/nashorn.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/ext/sunec.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/ext/sunjce_provider.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/ext/sunpkcs11.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/ext/zipfs.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/javaws.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/jce.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/jfr.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/jfxswt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/jsse.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/management-agent.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/plugin.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/resources.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/rt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/lib/ant-javafx.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/lib/dt.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/lib/javafx-mx.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/lib/jconsole.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/lib/packager.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/lib/sa-jdi.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/lib/tools.jar:/Users/mook/workspace/contacts/target/classes:/Users/mook/.m2/repository/org/springframework/boot/spring-boot-starter-web/1.1.4.RELEASE/spring-boot-starter-web-1.1.4.RELEASE.jar:/Users/mook/.m2/repository/org/springframework/boot/spring-boot-starter/1.1.4.RELEASE/spring-boot-starter-1.1.4.RELEASE.jar:/Users/mook/.m2/repository/org/springframework/boot/spring-boot/1.1.4.RELEASE/spring-boot-1.1.4.RELEASE.jar:/Users/mook/.m2/repository/org/springframework/boot/spring-boot-autoconfigure/1.1.4.RELEASE/spring-boot-autoconfigure-1.1.4.RELEASE.jar:/Users/mook/.m2/repository/org/springframework/boot/spring-boot-starter-logging/1.1.4.RELEASE/spring-boot-starter-logging-1.1.4.RELEASE.jar:/Users/mook/.m2/repository/org/slf4j/jcl-over-slf4j/1.7.7/jcl-over-slf4j-1.7.7.jar:/Users/mook/.m2/repository/org/slf4j/jul-to-slf4j/1.7.7/jul-to-slf4j-1.7.7.jar:/Users/mook/.m2/repository/org/slf4j/log4j-over-slf4j/1.7.7/log4j-over-slf4j-1.7.7.jar:/Users/mook/.m2/repository/ch/qos/logback/logback-classic/1.1.2/logback-classic-1.1.2.jar:/Users/mook/.m2/repository/ch/qos/logback/logback-core/1.1.2/logback-core-1.1.2.jar:/Users/mook/.m2/repository/org/yaml/snakeyaml/1.13/snakeyaml-1.13.jar:/Users/mook/.m2/repository/org/springframework/boot/spring-boot-starter-tomcat/1.1.4.RELEASE/spring-boot-starter-tomcat-1.1.4.RELEASE.jar:/Users/mook/.m2/repository/org/apache/tomcat/embed/tomcat-embed-core/7.0.54/tomcat-embed-core-7.0.54.jar:/Users/mook/.m2/repository/org/apache/tomcat/embed/tomcat-embed-el/7.0.54/tomcat-embed-el-7.0.54.jar:/Users/mook/.m2/repository/org/apache/tomcat/embed/tomcat-embed-logging-juli/7.0.54/tomcat-embed-logging-juli-7.0.54.jar:/Users/mook/.m2/repository/com/fasterxml/jackson/core/jackson-databind/2.3.3/jackson-databind-2.3.3.jar:/Users/mook/.m2/repository/com/fasterxml/jackson/core/jackson-annotations/2.3.3/jackson-annotations-2.3.3.jar:/Users/mook/.m2/repository/com/fasterxml/jackson/core/jackson-core/2.3.3/jackson-core-2.3.3.jar:/Users/mook/.m2/repository/org/hibernate/hibernate-validator/5.0.3.Final/hibernate-validator-5.0.3.Final.jar:/Users/mook/.m2/repository/javax/validation/validation-api/1.1.0.Final/validation-api-1.1.0.Final.jar:/Users/mook/.m2/repository/org/jboss/logging/jboss-logging/3.1.1.GA/jboss-logging-3.1.1.GA.jar:/Users/mook/.m2/repository/com/fasterxml/classmate/1.0.0/classmate-1.0.0.jar:/Users/mook/.m2/repository/org/springframework/spring-core/4.0.6.RELEASE/spring-core-4.0.6.RELEASE.jar:/Users/mook/.m2/repository/org/springframework/spring-web/4.0.6.RELEASE/spring-web-4.0.6.RELEASE.jar:/Users/mook/.m2/repository/org/springframework/spring-aop/4.0.6.RELEASE/spring-aop-4.0.6.RELEASE.jar:/Users/mook/.m2/repository/aopalliance/aopalliance/1.0/aopalliance-1.0.jar:/Users/mook/.m2/repository/org/springframework/spring-beans/4.0.6.RELEASE/spring-beans-4.0.6.RELEASE.jar:/Users/mook/.m2/repository/org/springframework/spring-context/4.0.6.RELEASE/spring-context-4.0.6.RELEASE.jar:/Users/mook/.m2/repository/org/springframework/spring-webmvc/4.0.6.RELEASE/spring-webmvc-4.0.6.RELEASE.jar:/Users/mook/.m2/repository/org/springframework/spring-expression/4.0.6.RELEASE/spring-expression-4.0.6.RELEASE.jar:/Users/mook/.m2/repository/org/thymeleaf/thymeleaf-spring4/2.1.3.RELEASE/thymeleaf-spring4-2.1.3.RELEASE.jar:/Users/mook/.m2/repository/org/thymeleaf/thymeleaf/2.1.3.RELEASE/thymeleaf-2.1.3.RELEASE.jar:/Users/mook/.m2/repository/ognl/ognl/3.0.6/ognl-3.0.6.jar:/Users/mook/.m2/repository/org/javassist/javassist/3.18.1-GA/javassist-3.18.1-GA.jar:/Users/mook/.m2/repository/org/unbescape/unbescape/1.0/unbescape-1.0.jar:/Users/mook/.m2/repository/org/slf4j/slf4j-api/1.7.7/slf4j-api-1.7.7.jar:/Users/mook/.m2/repository/org/springframework/boot/spring-boot-starter-jdbc/1.1.4.RELEASE/spring-boot-starter-jdbc-1.1.4.RELEASE.jar:/Users/mook/.m2/repository/org/springframework/spring-jdbc/4.0.6.RELEASE/spring-jdbc-4.0.6.RELEASE.jar:/Users/mook/.m2/repository/org/apache/tomcat/tomcat-jdbc/7.0.54/tomcat-jdbc-7.0.54.jar:/Users/mook/.m2/repository/org/apache/tomcat/tomcat-juli/7.0.54/tomcat-juli-7.0.54.jar:/Users/mook/.m2/repository/org/springframework/spring-tx/4.0.6.RELEASE/spring-tx-4.0.6.RELEASE.jar:/Users/mook/.m2/repository/com/h2database/h2/1.3.176/h2-1.3.176.jar:/Applications/IntelliJ IDEA.app/Contents/lib/idea_rt.jar" com.intellij.rt.execution.application.AppMain contacts.Application  .   ____          _            __ _ _ /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \ \\/  ___)| |_)| | | | | || (_| |  ) ) ) )  '  |____| .__|_| |_|_| |_\__, | / / / / =========|_|==============|___/=/_/_/_/ :: Spring Boot ::        (v1.1.4.RELEASE)2017-06-14 23:12:57.366  INFO 6599 --- [           main] contacts.Application                     : Starting Application on promote.cache-dns.local with PID 6599 (/Users/mook/workspace/contacts/target/classes started by mook in /Users/mook/workspace/contacts)2017-06-14 23:12:57.401  INFO 6599 --- [           main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@4ba2ca36: startup date [Wed Jun 14 23:12:57 CST 2017]; root of context hierarchy2017-06-14 23:12:57.801  INFO 6599 --- [           main] o.s.b.f.s.DefaultListableBeanFactory     : Overriding bean definition for bean 'beanNameViewResolver': replacing [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=org.springframework.boot.autoconfigure.web.ErrorMvcAutoConfiguration$WhitelabelErrorViewConfiguration; factoryMethodName=beanNameViewResolver; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [org/springframework/boot/autoconfigure/web/ErrorMvcAutoConfiguration$WhitelabelErrorViewConfiguration.class]] with [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter; factoryMethodName=beanNameViewResolver; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [org/springframework/boot/autoconfigure/web/WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter.class]]2017-06-14 23:12:58.252  INFO 6599 --- [           main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration' of type [class org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration$$EnhancerBySpringCGLIB$$1da7747c] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)2017-06-14 23:12:58.270  INFO 6599 --- [           main] trationDelegate$BeanPostProcessorChecker : Bean 'transactionAttributeSource' of type [class org.springframework.transaction.annotation.AnnotationTransactionAttributeSource] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)2017-06-14 23:12:58.278  INFO 6599 --- [           main] trationDelegate$BeanPostProcessorChecker : Bean 'transactionInterceptor' of type [class org.springframework.transaction.interceptor.TransactionInterceptor] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)2017-06-14 23:12:58.282  INFO 6599 --- [           main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.transaction.config.internalTransactionAdvisor' of type [class org.springframework.transaction.interceptor.BeanFactoryTransactionAttributeSourceAdvisor] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)2017-06-14 23:12:58.584  INFO 6599 --- [           main] .t.TomcatEmbeddedServletContainerFactory : Server initialized with port: 80802017-06-14 23:12:58.744  INFO 6599 --- [           main] o.apache.catalina.core.StandardService   : Starting service Tomcat2017-06-14 23:12:58.745  INFO 6599 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet Engine: Apache Tomcat/7.0.542017-06-14 23:12:58.847  INFO 6599 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext2017-06-14 23:12:58.849  INFO 6599 --- [ost-startStop-1] o.s.web.context.ContextLoader            : Root WebApplicationContext: initialization completed in 1452 ms2017-06-14 23:12:59.398  INFO 6599 --- [ost-startStop-1] o.s.b.c.e.ServletRegistrationBean        : Mapping servlet: 'dispatcherServlet' to [/]2017-06-14 23:12:59.400  INFO 6599 --- [ost-startStop-1] o.s.b.c.embedded.FilterRegistrationBean  : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]2017-06-14 23:12:59.922  INFO 6599 --- [           main] o.s.jdbc.datasource.init.ScriptUtils     : Executing SQL script from URL [file:/Users/mook/workspace/contacts/target/classes/schema.sql]2017-06-14 23:12:59.926  INFO 6599 --- [           main] o.s.jdbc.datasource.init.ScriptUtils     : Executed SQL script from URL [file:/Users/mook/workspace/contacts/target/classes/schema.sql] in 3 ms.2017-06-14 23:13:00.016  INFO 6599 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]2017-06-14 23:13:00.162  INFO 6599 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/],methods=[GET],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public java.lang.String contacts.ContactController.home(java.util.Map<java.lang.String, java.lang.Object>)2017-06-14 23:13:00.163  INFO 6599 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/],methods=[POST],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public java.lang.String contacts.ContactController.submit(contacts.Contact)2017-06-14 23:13:00.165  INFO 6599 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],methods=[],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.BasicErrorController.error(javax.servlet.http.HttpServletRequest)2017-06-14 23:13:00.165  INFO 6599 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],methods=[],params=[],headers=[],consumes=[],produces=[text/html],custom=[]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest)2017-06-14 23:13:00.184  INFO 6599 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]2017-06-14 23:13:00.185  INFO 6599 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]2017-06-14 23:13:00.506  INFO 6599 --- [           main] o.s.j.e.a.AnnotationMBeanExporter        : Registering beans for JMX exposure on startup2017-06-14 23:13:00.609  INFO 6599 --- [           main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat started on port(s): 8080/http2017-06-14 23:13:00.611  INFO 6599 --- [           main] contacts.Application                     : Started Application in 28.669 seconds (JVM running for 29.26)2017-06-14 23:13:34.477  INFO 6599 --- [nio-8080-exec-1] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring FrameworkServlet 'dispatcherServlet'2017-06-14 23:13:34.477  INFO 6599 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet        : FrameworkServlet 'dispatcherServlet': initialization started2017-06-14 23:13:34.488  INFO 6599 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet        : FrameworkServlet 'dispatcherServlet': initialization completed in 11 ms