SpringBoot/SpringCloud初探二（反向代理）

反向代理采用Nginx，部署容器采用tomcat。

一、Nginx配置

upstream testserver{
	    server 127.0.0.1:8790 weight=1;
		server 127.0.0.1:8791 weight=1;
	}


server {
        listen       8088;
        server_name  localhost;

        #charset koi8-r;

        #access_log  logs/host.access.log  main;

        location / {
		    proxy_pass http://testserver;
            root   html;
            index  index.html index.htm;
        }

        ...
}

二、Tomcat配置

（一）webapps/

（二）配置脚本

serverl.xml

...

<Connector port="8790" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8443" />

<Host name="localhost"  appBase="webapps"
            unpackWARs="true" autoDeploy="true">

...

三、Tomcat部署的代码适配

（一）启动类

@SpringBootApplication
public class GatewayWebapp extends SpringBootServletInitializer {

    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder builder){        
        return builder.sources(GatewayWebapp.class);
    }

    public static void main(String[] args) {
        SpringApplication.run(GatewayWebapp.class, args);
    }
}

（二）POM依赖适配

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">

    ...

    <packaging>war</packaging>
    
    <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-tomcat</artifactId>
            <scope>provided</scope>
     </dependency>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>

            <plugin>
                <artifactId>maven-war-plugin</artifactId>
                <version>2.6</version>
                <configuration>
                    <failOnMissingWebXml>false</failOnMissingWebXml>
                </configuration>
            </plugin>
        </plugins>
    </build>

   ...

</project>