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的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/
