SpringBoot測試版本

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.3.3.RELEASE</version>
</parent>
<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
</dependencies>
 

springboot中預設可以通過配置如下引數設定內嵌容器Tomcat的埠，最大執行緒數等等
server.port=8081
server.tomcat.max-threads=1000

但是，無法設定最大連線數，而最大連線數直接影響到Tomcat的效能，如何調整這個最大連線數呢？

以下有三種方法

一：

package com.web.server;

import org.apache.catalina.connector.Connector;
import org.apache.coyote.http11.Http11NioProtocol;
import org.springframework.boot.context.embedded.EmbeddedServletContainer;
import org.springframework.boot.context.embedded.ServletContextInitializer;
import org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory;
import org.springframework.stereotype.Component;

@Component()
public class MyEmbeddedServletContainerFactory extends TomcatEmbeddedServletContainerFactory
{
	public EmbeddedServletContainer getEmbeddedServletContainer(ServletContextInitializer... initializers)
	{
		//設定埠
		this.setPort(8081);
		return super.getEmbeddedServletContainer(initializers);
	}
	
	protected void customizeConnector(Connector connector)
	{
		super.customizeConnector(connector);
		Http11NioProtocol protocol = (Http11NioProtocol)connector.getProtocolHandler();
		//設定最大連線數
		protocol.setMaxConnections(2000);
		//設定最大執行緒數
		protocol.setMaxThreads(2000);
		protocol.setConnectionTimeout(30000);
	}
}
 

二：

package com.web.server;

import org.apache.catalina.connector.Connector;
import org.apache.coyote.http11.Http11NioProtocol;
import org.springframework.boot.context.embedded.EmbeddedServletContainerFactory;
import org.springframework.boot.context.embedded.tomcat.TomcatConnectorCustomizer;
import org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class WebServerConfiguration
{
	@Bean
	public EmbeddedServletContainerFactory createEmbeddedServletContainerFactory()
	{
		TomcatEmbeddedServletContainerFactory tomcatFactory = new TomcatEmbeddedServletContainerFactory();
		tomcatFactory.setPort(8081);
		tomcatFactory.addConnectorCustomizers(new MyTomcatConnectorCustomizer());
		return tomcatFactory;
	}
}
class MyTomcatConnectorCustomizer implements TomcatConnectorCustomizer
{
	public void customize(Connector connector)
	{
		Http11NioProtocol protocol = (Http11NioProtocol) connector.getProtocolHandler();
		//設定最大連線數
		protocol.setMaxConnections(2000);
		//設定最大執行緒數
		protocol.setMaxThreads(2000);
		protocol.setConnectionTimeout(30000);
	}
}
 

三：

package com.web.server;

import org.springframework.boot.context.embedded.ConfigurableEmbeddedServletContainer;
import org.springframework.boot.context.embedded.EmbeddedServletContainerCustomizer;
import org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class WebServerConfiguration
{
	@Bean
	public EmbeddedServletContainerCustomizer createEmbeddedServletContainerCustomizer()
	{
		return new MyEmbeddedServletContainerCustomizer();
	}
}

class MyEmbeddedServletContainerCustomizer implements EmbeddedServletContainerCustomizer
{
	public void customize(ConfigurableEmbeddedServletContainer container)
	{
		TomcatEmbeddedServletContainerFactory tomcatFactory = (TomcatEmbeddedServletContainerFactory)container;
		tomcatFactory.setPort(8081);
		//下面的操作可以參照上面的方法
	}
}

最後，如果發現沒有生效，就把application.properties配置裡面關於Tomcat的一些配置(server.*)全部刪掉，就OK了。