9.springboot项目tomcat换undertow或jetty

1.1排除tomcat容器

<!--1.排除tomcat-->
<exclusions>
   <exclusion>
      <artifactId>spring-boot-starter-tomcat</artifactId>
      <groupId>org.springframework.boot</groupId>
   </exclusion>
</exclusions>

1.2

导入其中一个容器包
<!--       <dependency>-->
<!--         <artifactId>spring-boot-starter-jetty</artifactId>-->
<!--         <groupId>org.springframework.boot</groupId>-->
<!--      </dependency>-->


      <dependency>
         <artifactId>spring-boot-starter-undertow</artifactId>
         <groupId>org.springframework.boot</groupId>
      </dependency>
2.1）如果是undertow 添加防止报错的beans下的文件类

package com.cctv.beans;

import io.undertow.server.DefaultByteBufferPool;
import io.undertow.websockets.jsr.WebSocketDeploymentInfo;
import org.springframework.boot.web.embedded.undertow.UndertowServletWebServerFactory;
import org.springframework.boot.web.server.WebServerFactoryCustomizer;
import org.springframework.stereotype.Component;

@Component
public class CustomizationBean implements WebServerFactoryCustomizer<UndertowServletWebServerFactory> {
    @Override
    public void customize(UndertowServletWebServerFactory factory) {
        factory.addDeploymentInfoCustomizers(deploymentInfo -> {
            WebSocketDeploymentInfo webSocketDeploymentInfo = new WebSocketDeploymentInfo();
            webSocketDeploymentInfo.setBuffers(new DefaultByteBufferPool(false, 1024));
            deploymentInfo.addServletContextAttribute("io.undertow.websockets.jsr.WebSocketDeploymentInfo", webSocketDeploymentInfo);
        });
    }
}

2.2）配置文件

server:
  port: 8080
  # 下面是配置undertow作为服务器的参数
  undertow:
    # 设置IO线程数, 它主要执行非阻塞的任务,它们会负责多个连接, 默认设置每个CPU核心一个线程
    io-threads: 4
    # 阻塞任务线程池, 当执行类似servlet请求阻塞操作, undertow会从这个线程池中取得线程,它的值设置取决于系统的负载
    worker-threads: 20
    # 以下的配置会影响buffer,这些buffer会用于服务器连接的IO操作,有点类似netty的池化内存管理
    # 每块buffer的空间大小,越小的空间被利用越充分
    buffer-size: 1024
    # 是否分配的直接内存
    direct-buffers: true