先起一个 Sidecar 服务，一个PHP服务一个应用，和PHP服务部署在同一台机子，通过 localhost 访问，这样就解决了网络开销，相当于本地进程间调用
Sidecar 服务比较简单，
1、这里记录下 maven 的配置
<?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>cn.taxiong</groupId>
<artifactId>tx_php_server_side_car</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging> <name>tx_php_server_side_car</name>
<description>Demo project for Spring Boot</description> <parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.4.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent> <properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties> <!--配置仓库-->
<repositories>
<repository>
<id>aliRepository</id>
<name>aliRepository</name>
<url>http://maven.aliyun.com/nexus/content/groups/public/</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories> <!-- cloud -->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Finchley.RELEASE</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement> <dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency> <dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-netflix-sidecar</artifactId>
</dependency> <dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
</dependencies> <build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build> </project>
2、sidecar 相关的配置，及注册中心的配置
spring:
application:
name: tx-php-server-sidecar #服务注册中心端口号
server:
port: 8203 #服务注册中心实例的主机名、端口
#是否向服务注册中心注册自己
#是否检索服务
#服务注册中心的配置内容，指定服务注册中心的位置
eureka:
port: 8200
instance:
hostname: localhost
client:
register-with-eureka: true
fetch-registry: true
serviceUrl:
defaultZone: http://${eureka.instance.hostname}:${eureka.port}/eureka/ sidecar:
port: 1215
instance:
hostname: localhost
health-uri: http://${sidecar.instance.hostname}:${sidecar.port}/health
3、服务启动类 @EnableSidecar
4、还需要在PHP服务一个检查服务的接口或文件， 注意响应头类型 Content-Type
以 laravel 框架为例子，配置后的地址是 http://127.0.0.1:1215/health
Route::get('health', function () {
$content = '{ "status" : "UP" }';
$status = 200;
$value = 'application/json; charset=utf-8';
return response($content, $status)
->header('Content-Type', $value);
});
这是通过 Eureka 中心页面，看见 Sidecar 已经注册上去，注意如果 PHP 的 health 页面的响应内容或者响应头不对的话， Sidecar 服务的 UP 状态会显示 DOWN
这里是 PHP 服务的默认页面
这里是通过 Spring Cloud gateway 转发后的 PHP 服务页面
服务间调用
一、PHP 服务调用 Java 服务的用法（调用host地址是Sidecar的地址，URi为服务名加接口地址，URi的拼装和Feign一样）
<?php
/**
* Created by PhpStorm.
* User: liugx
* Date: 2018/9/9
* Time: 下午12:57
*/ namespace App\Http\Controllers; use App\Exceptions\BusinessException;
use GuzzleHttp\Client; class TestController extends Controller
{
/**
* @return \Psr\Http\Message\StreamInterface
* @throws BusinessException
*/
public function test()
{
// Sidecar的端口号（本地调用）
$host = 'http://localhost:8203';
// 注册到Eureka的服务名称
$javaServiceName = 'tx-java-server';
// 要调用服务的接口URL
$func = '/';
// 通过Sidecar调用服务的URL
$uri = "/{$javaServiceName}{$func}"; $base_uri = $host;
$client = new Client([
// Base URI is used with relative requests
'base_uri' => $base_uri,
'timeout' => 3.0,
]);
$params = [];
try {
$response = $client->request('GET', $uri, [
'query' => $params
]);
} catch (\GuzzleHttp\Exception\GuzzleException $ex) { throw new BusinessException("抱歉，网络异常:{$ex->getMessage()}");
} return $response->getBody();
}
}
二、Java 服务调用 PHP 服务的用法
直接用FeignClient做服务间调用