springboot用undertow的坑

<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.yelang</groupId>
  <artifactId>undertowdemo</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <name>Undertow测试</name>
  <description>Undertow中间件测试</description>
  
  <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.10.RELEASE</version>
        <relativePath />
    </parent>
 
  <dependencies>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-web</artifactId>
      <!-- 移除掉默认支持的 Tomcat -->
      <exclusions>
        <exclusion>
          <groupId>org.springframework.boot</groupId>
          <artifactId>spring-boot-starter-tomcat</artifactId>
        </exclusion>
      </exclusions>
    </dependency>
 
    <!-- 添加 Undertow 容器 -->
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-undertow</artifactId>
    </dependency>
  </dependencies>
</project>

# 开发环境配置
server:
  # 服务器的HTTP端口，默认为8080
  port: 8080
  servlet:
    # 应用的访问路径
    context-path: /
  # undertow 配置
  undertow:
    # HTTP post内容的最大大小。当值为-1时，默认值为大小是无限的
    max-http-post-size: -1
    # 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: 512
    # 是否分配的直接内存
    direct-buffers: true
    threads:
      # 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: 8
      # 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: 256
#  # tomcat 配置
#  tomcat:
#    # tomcat的URI编码
#    uri-encoding: UTF-8
#    # tomcat最大线程数，默认为200
#    max-threads: 500
#    # Tomcat启动初始化的线程数，默认值25
#    min-spare-threads: 30

package com.yelang.config;
 
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
 
/**
 * 通用配置
 * @author wzh
 */
@Configuration
public class ResourcesConfig implements WebMvcConfigurer {
 
  @Override
  public void addResourceHandlers(ResourceHandlerRegistry registry) {
    /** 本地文件上传路径 */
    registry.addResourceHandler("/profile/**").addResourceLocations("file:D:/wzh/uploadPath/");
    /** swagger配置 */
    registry.addResourceHandler("swagger-ui.html").addResourceLocations("classpath:/META-INF/resources/");
    registry.addResourceHandler("/webjars/**").addResourceLocations("classpath:/META-INF/resources/webjars/");
  }
}