SpringBoot中Tomcat配置（学习SpringBoot实战）

1、Tomcat配置

Spring Boot默认内嵌的Tomcat为Servlet容器，所以本节只讲对Tomcat配置，其实本节的配置对Tomcat、Jetty和Undertow都是通用的。

1.1 配置Tomcat

关于Tomcat的所有属性都在org.springframework.boot.autoconfigure.web.ServerProperties配置类中做了定义，我们只需在application.properties配置属性做配置即可。通用的Servlet容器配置都以"server"作为前缀，而Tomcat特有配置都以"server.tomcat"作为前缀。下面举一些常用的例子。

配置servlet容器

server.port = #配置程序端口，默认为8080
server.session-timeout=#用户session过期，以秒为单位
server.context-path= #配置访问路径，默认为/

配置Tomcat

server.tomcat-uri-encoding = #配置Tomcat编码，默认为UTF-8
server.tomcat.compression = #Tomcat是否开启压缩，默认为关闭off

1.2 代码配置Tomcat

如果你需要通过代码的方式配置servlet容器，则可以注册一个实现EmbeddedServletContainerCustomizer接口的Bean,若想直接配置Tomcat、Jetty、Undertow,则可以直接定义TomcatEmbeddedServletContainerFactor、JettyEmbeddedServletContainerFactor、UndertowEmbeddedServletContainerFactor。

1.2.1 编写案例，项目目录如下

这里写图片描述

1.2.2 pom.xml的内容如下

<?xml version="1.0" encoding="UTF-8"?>
<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.wisely</groupId><artifactId>ch7_4</artifactId><version>0.0.1-SNAPSHOT</version><packaging>jar</packaging><name>ch7_4</name><description>Demo project for Spring Boot</description><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>1.3.0.M1</version><relativePath/> <!-- lookup parent from repository --></parent><properties><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding><java.version>1.8</java.version></properties><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency></dependencies><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId></plugin></plugins></build><repositories><repository><id>spring-snapshots</id><name>Spring Snapshots</name><url>https://repo.spring.io/snapshot</url><snapshots><enabled>true</enabled></snapshots></repository><repository><id>spring-milestones</id><name>Spring Milestones</name><url>https://repo.spring.io/milestone</url><snapshots><enabled>false</enabled></snapshots></repository></repositories><pluginRepositories><pluginRepository><id>spring-snapshots</id><name>Spring Snapshots</name><url>https://repo.spring.io/snapshot</url><snapshots><enabled>true</enabled></snapshots></pluginRepository><pluginRepository><id>spring-milestones</id><name>Spring Milestones</name><url>https://repo.spring.io/milestone</url><snapshots><enabled>false</enabled></snapshots></pluginRepository></pluginRepositories></project>

1.2.3 index.html的内容

<!DOCTYPE html>
<html>
<head><meta charset="UTF-8"><title>Insert title here</title>
</head>
<body>
index page
</body>
</html>

1.2.4 404.html

<!DOCTYPE html>
<html>
<head><meta charset="UTF-8"><title>Insert title here</title>
</head>
<body>
page not found,this is 404 page!
</body>
</html>

1.2.5 CustomServletContainer.java的内容

package com.wisely.ch7_4;import ch.qos.logback.core.util.TimeUtil;
import org.springframework.boot.context.embedded.ConfigurableEmbeddedServletContainer;
import org.springframework.boot.context.embedded.EmbeddedServletContainerCustomizer;
import org.springframework.boot.context.embedded.ErrorPage;
import org.springframework.http.HttpStatus;
import org.springframework.stereotype.Component;import java.util.concurrent.TimeUnit;@Component
public class CustomServletContainer implements EmbeddedServletContainerCustomizer {@Overridepublic void customize(ConfigurableEmbeddedServletContainer container) {container.setPort(8888);container.addErrorPages(new ErrorPage(HttpStatus.NOT_FOUND, "/404.html"));container.setSessionTimeout(10, TimeUnit.MINUTES);}
}

1.2.6 Ch74Application.java的内容

package com.wisely.ch7_4;import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;@Controller
@SpringBootApplication
public class Ch74Application {@RequestMapping("/")@ResponseBodyprivate String hello() {return "hello!";}@RequestMapping("/toIndex")public String toIndexPage() {return "index1";}public static void main(String[] args) {SpringApplication.run(Ch74Application.class,args);}
}