docker-compose安装nacos

nacos、docker、java

你好明天！

9733人浏览 · 2022-11-29 10:11:08

你好明天！ · 2022-11-29 10:11:08 发布

一、安装nacos

安装文档：https://mrbird.cc/Spring-Cloud-Alibaba-Nacos%E6%B3%A8%E5%86%8C%E4%B8%AD%E5%BF%83.html

docker-compose安装nacos

创建文件夹：/opt/docker-file/nacos

1.docker-compose.yml

version: "3"
services:
  nacos:
    image: nacos/nacos-server:v2.1.0
    container_name: nacos
    environment:
      # 支持主机名可以使用hostname,否则使用ip，默认ip
      - PREFER_HOST_MODE=ip
      # 单机模式
      - MODE=standalone
      # 数据源平台 支持mysql或不保存empty
      - SPRING_DATASOURCE_PLATFORM=mysql
      # mysql配置，!!!attention必须是mysql所在主机IP
      #- MYSQL_SERVICE_HOST=192.168.0.123
      #- MYSQL_SERVICE_PORT=3306
      #- MYSQL_SERVICE_USER=root
      #- MYSQL_SERVICE_PASSWORD=123456
      #- MYSQL_SERVICE_DB_NAME=nacos
    volumes:
      - ./logs:/home/nacos/logs
      - ./conf:/home/nacos/conf
    ports:
      - 8848:8848 
    restart: always

mkdir -p /opt/docker-file/nacos/logs
mkdir -p /opt/docker-file/nacos/conf

将application.properties文件复制到/opt/docker-file/nacos/conf目录下

server.servlet.contextPath=/nacos
server.port=8848
spring.datasource.platform=mysql
# 数据库数量
db.num=1
db.url.0=jdbc:mysql://192.168.229.199:3306/nacos?characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true&useUnicode=true&useSSL=false&serverTimezone=UTC
db.user=root2
db.password=123456

2.nacos数据库表结构

/*
 * Copyright 1999-2018 Alibaba Group Holding Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/******************************************/
/*   数据库全名 = nacos_config   */
/*   表名称 = config_info   */
/******************************************/
CREATE TABLE `config_info` (
  `id` BIGINT(20) NOT NULL AUTO_INCREMENT COMMENT 'id',
  `data_id` VARCHAR(255) NOT NULL COMMENT 'data_id',
  `group_id` VARCHAR(255) DEFAULT NULL,
  `content` LONGTEXT NOT NULL COMMENT 'content',
  `md5` VARCHAR(32) DEFAULT NULL COMMENT 'md5',
  `gmt_create` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
  `gmt_modified` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '修改时间',
  `src_user` TEXT COMMENT 'source user',
  `src_ip` VARCHAR(50) DEFAULT NULL COMMENT 'source ip',
  `app_name` VARCHAR(128) DEFAULT NULL,
  `tenant_id` VARCHAR(128) DEFAULT '' COMMENT '租户字段',
  `c_desc` VARCHAR(256) DEFAULT NULL,
  `c_use` VARCHAR(64) DEFAULT NULL,
  `effect` VARCHAR(64) DEFAULT NULL,
  `type` VARCHAR(64) DEFAULT NULL,
  `c_schema` TEXT,
  `encrypted_data_key` TEXT NOT NULL COMMENT '秘钥',
  PRIMARY KEY (`id`),
  UNIQUE KEY `uk_configinfo_datagrouptenant` (`data_id`,`group_id`,`tenant_id`)
) ENGINE=INNODB DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='config_info';

/******************************************/
/*   数据库全名 = nacos_config   */
/*   表名称 = config_info_aggr   */
/******************************************/
CREATE TABLE `config_info_aggr` (
  `id` BIGINT(20) NOT NULL AUTO_INCREMENT COMMENT 'id',
  `data_id` VARCHAR(255) NOT NULL COMMENT 'data_id',
  `group_id` VARCHAR(255) NOT NULL COMMENT 'group_id',
  `datum_id` VARCHAR(255) NOT NULL COMMENT 'datum_id',
  `content` LONGTEXT NOT NULL COMMENT '内容',
  `gmt_modified` DATETIME NOT NULL COMMENT '修改时间',
  `app_name` VARCHAR(128) DEFAULT NULL,
  `tenant_id` VARCHAR(128) DEFAULT '' COMMENT '租户字段',
  PRIMARY KEY (`id`),
  UNIQUE KEY `uk_configinfoaggr_datagrouptenantdatum` (`data_id`,`group_id`,`tenant_id`,`datum_id`)
) ENGINE=INNODB DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='增加租户字段';


/******************************************/
/*   数据库全名 = nacos_config   */
/*   表名称 = config_info_beta   */
/******************************************/
CREATE TABLE `config_info_beta` (
  `id` BIGINT(20) NOT NULL AUTO_INCREMENT COMMENT 'id',
  `data_id` VARCHAR(255) NOT NULL COMMENT 'data_id',
  `group_id` VARCHAR(128) NOT NULL COMMENT 'group_id',
  `app_name` VARCHAR(128) DEFAULT NULL COMMENT 'app_name',
  `content` LONGTEXT NOT NULL COMMENT 'content',
  `beta_ips` VARCHAR(1024) DEFAULT NULL COMMENT 'betaIps',
  `md5` VARCHAR(32) DEFAULT NULL COMMENT 'md5',
  `gmt_create` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
  `gmt_modified` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '修改时间',
  `src_user` TEXT COMMENT 'source user',
  `src_ip` VARCHAR(50) DEFAULT NULL COMMENT 'source ip',
  `tenant_id` VARCHAR(128) DEFAULT '' COMMENT '租户字段',
  `encrypted_data_key` TEXT NOT NULL COMMENT '秘钥',
  PRIMARY KEY (`id`),
  UNIQUE KEY `uk_configinfobeta_datagrouptenant` (`data_id`,`group_id`,`tenant_id`)
) ENGINE=INNODB DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='config_info_beta';

/******************************************/
/*   数据库全名 = nacos_config   */
/*   表名称 = config_info_tag   */
/******************************************/
CREATE TABLE `config_info_tag` (
  `id` BIGINT(20) NOT NULL AUTO_INCREMENT COMMENT 'id',
  `data_id` VARCHAR(255) NOT NULL COMMENT 'data_id',
  `group_id` VARCHAR(128) NOT NULL COMMENT 'group_id',
  `tenant_id` VARCHAR(128) DEFAULT '' COMMENT 'tenant_id',
  `tag_id` VARCHAR(128) NOT NULL COMMENT 'tag_id',
  `app_name` VARCHAR(128) DEFAULT NULL COMMENT 'app_name',
  `content` LONGTEXT NOT NULL COMMENT 'content',
  `md5` VARCHAR(32) DEFAULT NULL COMMENT 'md5',
  `gmt_create` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
  `gmt_modified` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '修改时间',
  `src_user` TEXT COMMENT 'source user',
  `src_ip` VARCHAR(50) DEFAULT NULL COMMENT 'source ip',
  PRIMARY KEY (`id`),
  UNIQUE KEY `uk_configinfotag_datagrouptenanttag` (`data_id`,`group_id`,`tenant_id`,`tag_id`)
) ENGINE=INNODB DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='config_info_tag';

/******************************************/
/*   数据库全名 = nacos_config   */
/*   表名称 = config_tags_relation   */
/******************************************/
CREATE TABLE `config_tags_relation` (
  `id` BIGINT(20) NOT NULL COMMENT 'id',
  `tag_name` VARCHAR(128) NOT NULL COMMENT 'tag_name',
  `tag_type` VARCHAR(64) DEFAULT NULL COMMENT 'tag_type',
  `data_id` VARCHAR(255) NOT NULL COMMENT 'data_id',
  `group_id` VARCHAR(128) NOT NULL COMMENT 'group_id',
  `tenant_id` VARCHAR(128) DEFAULT '' COMMENT 'tenant_id',
  `nid` BIGINT(20) NOT NULL AUTO_INCREMENT,
  PRIMARY KEY (`nid`),
  UNIQUE KEY `uk_configtagrelation_configidtag` (`id`,`tag_name`,`tag_type`),
  KEY `idx_tenant_id` (`tenant_id`)
) ENGINE=INNODB DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='config_tag_relation';

/******************************************/
/*   数据库全名 = nacos_config   */
/*   表名称 = group_capacity   */
/******************************************/
CREATE TABLE `group_capacity` (
  `id` BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT COMMENT '主键ID',
  `group_id` VARCHAR(128) NOT NULL DEFAULT '' COMMENT 'Group ID，空字符表示整个集群',
  `quota` INT(10) UNSIGNED NOT NULL DEFAULT '0' COMMENT '配额，0表示使用默认值',
  `usage` INT(10) UNSIGNED NOT NULL DEFAULT '0' COMMENT '使用量',
  `max_size` INT(10) UNSIGNED NOT NULL DEFAULT '0' COMMENT '单个配置大小上限，单位为字节，0表示使用默认值',
  `max_aggr_count` INT(10) UNSIGNED NOT NULL DEFAULT '0' COMMENT '聚合子配置最大个数，，0表示使用默认值',
  `max_aggr_size` INT(10) UNSIGNED NOT NULL DEFAULT '0' COMMENT '单个聚合数据的子配置大小上限，单位为字节，0表示使用默认值',
  `max_history_count` INT(10) UNSIGNED NOT NULL DEFAULT '0' COMMENT '最大变更历史数量',
  `gmt_create` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
  `gmt_modified` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '修改时间',
  PRIMARY KEY (`id`),
  UNIQUE KEY `uk_group_id` (`group_id`)
) ENGINE=INNODB DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='集群、各Group容量信息表';

/******************************************/
/*   数据库全名 = nacos_config   */
/*   表名称 = his_config_info   */
/******************************************/
CREATE TABLE `his_config_info` (
  `id` BIGINT(64) UNSIGNED NOT NULL,
  `nid` BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT,
  `data_id` VARCHAR(255) NOT NULL,
  `group_id` VARCHAR(128) NOT NULL,
  `app_name` VARCHAR(128) DEFAULT NULL COMMENT 'app_name',
  `content` LONGTEXT NOT NULL,
  `md5` VARCHAR(32) DEFAULT NULL,
  `gmt_create` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
  `gmt_modified` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
  `src_user` TEXT,
  `src_ip` VARCHAR(50) DEFAULT NULL,
  `op_type` CHAR(10) DEFAULT NULL,
  `tenant_id` VARCHAR(128) DEFAULT '' COMMENT '租户字段',
  `encrypted_data_key` TEXT NOT NULL COMMENT '秘钥',
  PRIMARY KEY (`nid`),
  KEY `idx_gmt_create` (`gmt_create`),
  KEY `idx_gmt_modified` (`gmt_modified`),
  KEY `idx_did` (`data_id`)
) ENGINE=INNODB DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='多租户改造';


/******************************************/
/*   数据库全名 = nacos_config   */
/*   表名称 = tenant_capacity   */
/******************************************/
CREATE TABLE `tenant_capacity` (
  `id` BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT COMMENT '主键ID',
  `tenant_id` VARCHAR(128) NOT NULL DEFAULT '' COMMENT 'Tenant ID',
  `quota` INT(10) UNSIGNED NOT NULL DEFAULT '0' COMMENT '配额，0表示使用默认值',
  `usage` INT(10) UNSIGNED NOT NULL DEFAULT '0' COMMENT '使用量',
  `max_size` INT(10) UNSIGNED NOT NULL DEFAULT '0' COMMENT '单个配置大小上限，单位为字节，0表示使用默认值',
  `max_aggr_count` INT(10) UNSIGNED NOT NULL DEFAULT '0' COMMENT '聚合子配置最大个数',
  `max_aggr_size` INT(10) UNSIGNED NOT NULL DEFAULT '0' COMMENT '单个聚合数据的子配置大小上限，单位为字节，0表示使用默认值',
  `max_history_count` INT(10) UNSIGNED NOT NULL DEFAULT '0' COMMENT '最大变更历史数量',
  `gmt_create` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
  `gmt_modified` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '修改时间',
  PRIMARY KEY (`id`),
  UNIQUE KEY `uk_tenant_id` (`tenant_id`)
) ENGINE=INNODB DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='租户容量信息表';


CREATE TABLE `tenant_info` (
  `id` BIGINT(20) NOT NULL AUTO_INCREMENT COMMENT 'id',
  `kp` VARCHAR(128) NOT NULL COMMENT 'kp',
  `tenant_id` VARCHAR(128) DEFAULT '' COMMENT 'tenant_id',
  `tenant_name` VARCHAR(128) DEFAULT '' COMMENT 'tenant_name',
  `tenant_desc` VARCHAR(256) DEFAULT NULL COMMENT 'tenant_desc',
  `create_source` VARCHAR(32) DEFAULT NULL COMMENT 'create_source',
  `gmt_create` BIGINT(20) NOT NULL COMMENT '创建时间',
  `gmt_modified` BIGINT(20) NOT NULL COMMENT '修改时间',
  PRIMARY KEY (`id`),
  UNIQUE KEY `uk_tenant_info_kptenantid` (`kp`,`tenant_id`),
  KEY `idx_tenant_id` (`tenant_id`)
) ENGINE=INNODB DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='tenant_info';

CREATE TABLE `users` (
	`username` VARCHAR(50) NOT NULL PRIMARY KEY,
	`password` VARCHAR(500) NOT NULL,
	`enabled` BOOLEAN NOT NULL
);

CREATE TABLE `roles` (
	`username` VARCHAR(50) NOT NULL,
	`role` VARCHAR(50) NOT NULL,
	UNIQUE INDEX `idx_user_role` (`username` ASC, `role` ASC) USING BTREE
);

CREATE TABLE `permissions` (
    `role` VARCHAR(50) NOT NULL,
    `resource` VARCHAR(255) NOT NULL,
    `action` VARCHAR(8) NOT NULL,
    UNIQUE INDEX `uk_role_permission` (`role`,`resource`,`action`) USING BTREE
);

INSERT INTO users (username, PASSWORD, enabled) VALUES ('nacos', '$2a$10$EuWPZHzz32dJN7jexM34MOeYirDdFAZm2kuWj7VEOJhhZkDrxfvUu', TRUE);

INSERT INTO roles (username, role) VALUES ('nacos', 'ROLE_ADMIN');

3.docker-compose 构建运行

[root@localhost nacos]# docker-compose up -d
[+] Running 1/1
 ⠿ Container nacos  Started

4.检查nacos日志

docker logs -f nacos

需要在conf目录准备log文件:nacos-logback.xml


<?xml version="1.0" encoding="UTF-8"?>
<configuration debug="false" scan="true" scanPeriod="1 seconds">
    <contextName>logback</contextName>
    <property name="log.path" value="/home/nacos/logs/logback.log" />
    <appender name="console" class="ch.qos.logback.core.ConsoleAppender">
        <!-- <filter class="com.example.logback.filter.MyFilter" /> -->
        <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
              <level>ERROR</level>
        </filter>
        <encoder>
            <pattern>%d{HH:mm:ss.SSS} %contextName [%thread] %-5level %logger{36} - %msg%n
            </pattern>
        </encoder>
    </appender>
 
    <appender name="file"
        class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${log.path}</file>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <fileNamePattern>${log.path}.%d{yyyy-MM-dd}.zip</fileNamePattern>
        </rollingPolicy>
 
        <encoder>
            <pattern>%date %level [%thread] %logger{36} [%file : %line] %msg%n
            </pattern>
        </encoder>
    </appender>
 
    <root level="debug">
        <appender-ref ref="console" />
        <appender-ref ref="file" />
    </root>
 
    <logger name="com.example.logback" level="warn" />
 
</configuration>

继续查看nacos错误日志

如连接不上数据库，就是数据库账号密码没有配对。

6.测试访问：

地址：192.168.229.199:49155/nacos/#/login
账号：nacos
密码：nacos

TODO:

打包成新的镜像放在本地仓库，下次可以直接用

二、nacos为注册中心：项目测试

nacos与springcloud与springcloudalibaba版本对照
在这里插入图片描述
nacos版本：v2.1.0
springboot版本：

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.1.8.RELEASE</version>
    <relativePath/> <!-- lookup parent from repository -->
</parent>

springcloudalibaba与springcloud版本：

<properties>
    <java.version>1.8</java.version>
    <spring-cloud.version>Greenwich.RELEASE</spring-cloud.version>
    <com-alibaba-cloud.version>2.1.0.RELEASE</com-alibaba-cloud.version>
</properties>

1.新建maven项目：

在这里插入图片描述
父：spring-cloud-alibaba-nacos-register
子：consumer，provider

2.配置pom.xml

spring-cloud-alibaba-nacos-register

<?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>cc.mrbird</groupId>
    <artifactId>spring-cloud-alibaba-nacos-register</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>pom</packaging>

    <modules>
        <module>provider</module>
        <module>consumer</module>
    </modules>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.8.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <java.version>1.8</java.version>
        <spring-cloud.version>Greenwich.RELEASE</spring-cloud.version>
        <com-alibaba-cloud.version>2.1.0.RELEASE</com-alibaba-cloud.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-alibaba-nacos-discovery</artifactId>
        </dependency>
    </dependencies>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                <version>${com-alibaba-cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>
</project>

provider

<?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">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>cc.mrbird</groupId>
        <artifactId>spring-cloud-alibaba-nacos-register</artifactId>
        <version>1.0-SNAPSHOT</version>
        <relativePath>../pom.xml</relativePath>
    </parent>

    <artifactId>provider</artifactId>
    <name>provider</name>
    <description>服务提供端</description>

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

consumer

<?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">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>cc.mrbird</groupId>
        <artifactId>spring-cloud-alibaba-nacos-register</artifactId>
        <version>1.0-SNAPSHOT</version>
        <relativePath>../pom.xml</relativePath>
    </parent>

    <artifactId>consumer</artifactId>
    <name>consumer</name>
    <description>服务消费端</description>

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

3.配置application.properties

provider

server.port=8001
spring.application.name=nacos-producer
spring.cloud.nacos.discovery.server-addr=192.168.229.199:8848
management.endpoints.web.exposure.include=*

comsumer

server.port=8002
spring.application.name=nacos-consumer
spring.cloud.nacos.discovery.server-addr=192.168.229.199:8848
management.endpoints.web.exposure.include=*

4.激活服务发现客户端

启动类加注解@EnableDiscoveryClient

5.编写controller

provider

package cc.mrbird.provider.controller;

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping("provide")
public class HelloController {

    @GetMapping("{message}")
    public String hello(@PathVariable String message) {
        return String.format("hello %s", message);
    }
}

consumer

package cc.mrbird.consumer.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.loadbalancer.LoadBalancerClient;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

@RestController
@RequestMapping("consume")
public class ConsumeController {

    @Autowired
    private LoadBalancerClient loadBalancerClient;
    @Autowired
    private RestTemplate restTemplate;

    @GetMapping("hello/{message}")
    public String hello(@PathVariable String message) {
        ServiceInstance serviceInstance = loadBalancerClient.choose("nacos-producer");
        String path = String.format("http://%s:%s/provide/%s", serviceInstance.getHost(), serviceInstance.getPort(), message);
        String result = restTemplate.getForObject(path, String.class);
        return String.format("%s from %s %s", result, serviceInstance.getHost(), serviceInstance.getPort());
    }

}

6.增加远程调用配置

consumer

package cc.mrbird.consumer.configure;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.client.RestTemplate;

@Configuration
public class ConsumerConfigure {

    @Bean
    public RestTemplate restTemplate() {
        return new RestTemplate();
    }
}

7.启动后查看nacos网页端

http://192.168.229.199:8848/nacos/#/serviceManagement
如图：
在这里插入图片描述

8.访问地址

服务提供者：localhost:8001/provide/nacos
服务消费者：localhost:8002/consume/hello/nacos

9.测试消费端负载均衡

启动两个provider：
localhost:8001/provide/nacos
localhost:8009/provide/nacos

在这里插入图片描述

三.nacos配置中心和注册中心：项目测试

java项目如果启动了配置中心，在项目不重启的情况下，可以远程动态的修改配置信息

1.新建maven项目

在spring-cloud-alibaba-nacos-register项目下新建子项目config

2.配置子项目pom.xml

<?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">
    <parent>
        <artifactId>spring-cloud-alibaba-nacos-register</artifactId>
        <groupId>cc.mrbird</groupId>
        <version>1.0-SNAPSHOT</version>
        <relativePath>../pom.xml</relativePath>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>config</artifactId>
    <description>配置服务</description>

    <dependencies>
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-alibaba-nacos-config</artifactId>
        </dependency>
    </dependencies>

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

</project>

3.配置bootstrap.properties文件

必须是bootstrap.properties文件，不然加载不到

server.port=8102
spring.cloud.nacos.config.server-addr=192.168.229.199:8848
#spring.cloud.nacos.config.file-extension=properties
spring.application.name=nacos-config-example

spring.cloud.nacos.discovery.server-addr=192.168.229.199:8848
management.endpoints.web.exposure.include=*

4.激活服务发现客户端

package cc.mrbird.config;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.context.properties.EnableConfigurationProperties;

@SpringBootApplication
@EnableConfigurationProperties
public class ConfigApplication {

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

5.编写controller

package cc.mrbird.config.controller;


import cc.mrbird.config.config.UserConfig;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping("config")
public class Controller {

    @Autowired
    private UserConfig userConfig;

    @GetMapping("hello/{message}")
    public String sayHello(@PathVariable String message) {
        return this.userConfig.getUsername() + message + ";" + this.userConfig.getAge();
    }

}

6.编写bean，获取远程配置

package cc.mrbird.config.config;

import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.Configuration;
import org.springframework.stereotype.Component;

@ConfigurationProperties(prefix = "user")
//@Component
@Configuration
@Data
public class UserConfig {

    private String username;

    private int age;
}

7.在nacos服务端上增加配置

注意dataId的命名方式
在这里插入图片描述

8.启动config项目

没有报错，说明配置没有问题

9.访问controller

localhost:8102/config/hello/nacos

修改nacos服务端配置后再次访问：成功

四、整合gateway网关

1.添加依赖

注释web依赖
<!--        <dependency>-->
<!--            <groupId>org.springframework.boot</groupId>-->
<!--            <artifactId>spring-boot-starter-web</artifactId>-->
<!--        </dependency>-->

<dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-gateway</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-starter-web</artifactId>
                </exclusion>
            </exclusions>
        </dependency>

2.编写配置文件

spring:
  gateway:
      routes:
        - id: gateway-test  # 访问http://localhost:8801/gateway-test/test/index，会跳转到访问到 http://localhost:8802/gateway-test/test/index地址
          uri: lb://gateway-test
          order: 0
          predicates:
            - Path=/gateway-test/**
          filters:
            - StripPrefix=1
            
management:
  endpoints:
    web:
      exposure:
        include: '*'

3.启动项目

4.如何测试网关是否拦截了目标服务器请求

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