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/
