SpringBoot—嵌入式容器
SpringBoot支持嵌入式容器（比如：Apache Tomcat, Eclipse Jetty, RedHat Undertow），默认情况下使用tomcat.
1.修改Tomcat版本
SpringBoot 2.6.3版本默认采用的是*Apache Tomcat/9.0.56版本
日志显示:
INFO?25080?---?[???????????main]?org.apache.catalina.core.StandardEngine??:?Starting?Servlet?engine:?[Apache?Tomcat/9.0.56]
修改了pom.xml
<properties>
????<tomcat.version>9.0.58</tomcat.version>
</properties>
后重新运行
INFO?3840?---?[???????????main]?org.apache.catalina.core.StandardEngine??:?Starting?Servlet?engine:?[Apache?Tomcat/9.0.58]
2.修改端口号和web路径
2.1 通过配置文件修改端口号和web路径
2.1.1 application.properties和application.yml的异同
在我们创建SpringBoot项目的时候，会在/main/resources/文件夹下新建application.properties配置文件，但是我们经常会把 application.properties修改成application.yml文件，这两种格式存在区别如下：
格式区别：
-
properties配置文件通过**=**进行赋值，没有层次感
-
yml配置文件通过key:value分层进行赋值，比较有层次感
执行顺序区别：
如果properties配置文件和yml配置文件同时存在，yml配置会先加载并且后加载的properties文件会覆盖yml配置文件
示例：
application.properties配置文件：
server.port=8889
application.yml配置文件：
server:
??port:?8899
??servlet:
????context-path:?/springweb
两个文件并存情况下，运行项目结果：
INFO?968?---?[???????????main]?o.s.b.w.embedded.tomcat.TomcatWebServer??:?Tomcat?started?on?port(s):?8889?(http)?with?context?path?'/springweb'
访问页面http://localhost:8889/springweb/
配置相同的情况下application.properties覆盖application.yml
2.1.2通过WebServerFactoryCustomizer进行修改
在SpringBoot1.x的时候使用的是EmbeddedServletContainerCustomizer到SpringBoot2.x后WebServerFactoryCustomizer替代了EmbeddedServletContainerCustomizer。
SpringBoot1.x EmbeddedServletContainerCustomizer
????@Bean
????public?EmbeddedServletContainerCustomizer?embeddedServletContainerCustomizer(){
????????return?new?EmbeddedServletContainerCustomizer()?{
????????????@Override
????????????public?void?customize(ConfigurableEmbeddedServletContainer?container)?{
????????????????//设置端口
????????????????container.setPort(8883);
????????????????container.setContextPath("/springweb");
????????????}
????????};
????}
SpringBoot2.x ?WebServerFactoryCustomizer
package?com.learn.springboot.springbootpart2.config;
import?org.springframework.boot.web.server.WebServerFactoryCustomizer;
import?org.springframework.boot.web.servlet.server.ConfigurableServletWebServerFactory;
import?org.springframework.context.annotation.Bean;
import?org.springframework.context.annotation.Configuration;
/**
?*?@program:?spring-boot-part2
?*?@package:?com.learn.springboot.springbootpart2.config
?*?@classname:?PortConfig
?*?@description:?端口和web修改
?*?@author:?zbb
?*/
@Configuration
public?class?PortConfig?{
????
????@Bean
????public?WebServerFactoryCustomizer<ConfigurableServletWebServerFactory>?webServerFactoryCustomizer(){
????????return??new?WebServerFactoryCustomizer<ConfigurableServletWebServerFactory>()?{
????????????@Override
????????????public?void?customize(ConfigurableServletWebServerFactory?factory)?{
????????????????//设置web路径
????????????????factory.setContextPath("/webpath");
????????????????//设置端口
????????????????factory.setPort(8888);
????????????}
????????};
????}
}
运行结果为：
2.1.3 通过WebServerFactoryCustomizer进行修改
**SpringBoot1.x EmbeddedServletContainerFactory **
??@Bean??
????public?EmbeddedServletContainerFactory?servletContainer()?{??
????????TomcatEmbeddedServletContainerFactory?tomcat?=?new?TomcatEmbeddedServletContainerFactory();??
????????tomcat.setPort(8879);??
????????tomcat.setContextPath("/webserver");??
????????return?tomcat;??
????}??
SpringBoot2.X ?ServletWebServerFactory
????@Bean
????public?ServletWebServerFactory??servletContainer()?{
????????TomcatServletWebServerFactory?tomcat?=?new?TomcatServletWebServerFactory()?;
????????tomcat.setPort(8879);
????????tomcat.setContextPath("/webserver");
????????return?tomcat;
????}
2.2 通过ServletWebServerFactory类优化Tomcat
**SpringBoot1.x EmbeddedServletContainerFactory **
@Bean??
public?EmbeddedServletContainerFactory?servletContainer()?{??
????TomcatEmbeddedServletContainerFactory?tomcat?=?new?TomcatEmbeddedServletContainerFactory()?{??
????????@Override??
????????protected?void?postProcessContext(Context?context)?{??
???????????//?...??
????????}??
????};???
????return?tomcat;??
}??
SpringBoot2.X ?ServletWebServerFactory
?@Bean
????public?ServletWebServerFactory??servletContainer()?{
????????TomcatServletWebServerFactory?tomcat?=?new?TomcatServletWebServerFactory()?{
????????????@Override
????????????protected?void?postProcessContext(Context?context)?{
????????????????//?...??
????????????}
????????};
????????//tomcat.setPort(8879);
????????//tomcat.setContextPath("/webserver");
????????return?tomcat;
????}
2.2.1开启HTTPS
SpringBoot默认端口是8080的HTTP服务，通过配置可以开启HTTPS服务在application.yml文件中配置
server:
??port:?8843
??servlet:
????context-path:?/springweb
??ssl:
????key-store:?tomcat.keystore
????key-store-password:?password
????key-store-type:?JKS
????key-alias:?tomcat
tomcat.keystore生成步骤：
1）：打开cmd输入命令
keytool -genkey -alias tomcat -keyalg RSA -keystore D:\software\file\java\myfirst\tomcat.keystore
2)将tomcat.keystore放到**/spring-boot-part2**文件夹下
运行结果为：
SpringBoot不支持通过application.yml同时支持HTTP和HTTPS
可以在application.yml设置HTTPS，HTTP在代码中添加来实现。
@Configuration
public?class?PortConfig?{
????@Bean
????public?ServletWebServerFactory??servletContainer()?{
????????TomcatServletWebServerFactory?tomcat?=?new?TomcatServletWebServerFactory()?{
????????????@Override
????????????protected?void?postProcessContext(Context?context)?{
????????????????SecurityConstraint?constraint?=?new?SecurityConstraint();
????????????????constraint.setUserConstraint("CONFIDENTIAL");
????????????????SecurityCollection?collection?=?new?SecurityCollection();
????????????????collection.addPattern("/*");
????????????????constraint.addCollection(collection);
????????????????context.addConstraint(constraint);
????????????}
????????};
????????tomcat.addAdditionalTomcatConnectors(connector());
????????return?tomcat;
????}
????@Bean
????public?Connector?connector(){
????????Connector?connector=new?Connector("org.apache.coyote.http11.Http11NioProtocol");
????????connector.setScheme("http");
????????connector.setPort(8888);
????????connector.setURIEncoding("UTF-8");
????????connector.setMaxPostSize(8192);
????????connector.setSecure(false);
????????connector.setRedirectPort(8843);
????????return?connector;
????}
}
这个时候访问http://localhost:8888/springweb就可以自动转到https://localhost:8843/springweb
2.3 SpringBoot的容器变更
- 修改pom.xml
?<dependency>
????????????<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>
????????<dependency>
????????????<groupId>org.springframework.boot</groupId>
????????????<artifactId>spring-boot-starter-jetty</artifactId>
????????</dependency>
- config配置文件
?@Bean
????public?ServletWebServerFactory??jettyservletContainer()?{
????????JettyServletWebServerFactory?container?=?new?JettyServletWebServerFactory();
????????container.setPort(8081);
????????//?Context?Path
????????container.setContextPath("/jettboot");
????????return?container;
????}
log日志显示：
?INFO?4560?---?[???????????main]?o.s.b.web.embedded.jetty.JettyWebServer??:?Jetty?started?on?port(s)?8081?(http/1.1)?with?context?path?'/jettboot'
运行http://localhost:8081/jettboot/