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https://github.com/xiyuan-fengyu/spring-boot-cloud-demos-2.0.3

spring boot cloud demos for version 2.0.3
https://github.com/xiyuan-fengyu/spring-boot-cloud-demos-2.0.3

bus elasticsearch eureka feign-client hystrix hystrix-dashboard mongodb mybatis-plus redis spring spring-boot spring-cloud zipkin-server

Last synced: 11 days ago
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spring boot cloud demos for version 2.0.3

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# 参考文档

http://start.spring.io/  

https://docs.spring.io/spring-boot/docs/2.0.3.RELEASE/reference/htmlsingle/  

https://cloud.spring.io/spring-cloud-static/Finchley.RELEASE/single/spring-cloud.html#_spring_cloud_config_server  



# 准备工作

1. 安装JCE  

    http://www.oracle.com/technetwork/java/javase/downloads/jce8-download-2133166.html  

    https://stackoverflow.com/questions/6481627/java-security-illegal-key-size-or-default-parameters  



2. 安装 Rabbit, ElasticSearch, 部署 zipkin-server(详情参考附录)    



3. 修改配置  

    config-server/src/main/resources/bootstrap.properties  

    ```

    spring.cloud.config.server.git.uri=file://项目本地路径

    

    spring.rabbitmq.host=RABBIT_HOST

    spring.rabbitmq.port=5672

    spring.rabbitmq.username=RABBIT_USER

    spring.rabbitmq.password=RABBIT_PASSWORD

    ```

    configs/dev/application.properties

    ```

    spring.rabbitmq.host=RABBIT_HOST

    spring.rabbitmq.port=5672

    spring.rabbitmq.username=RABBIT_USER

    spring.rabbitmq.password=RABBIT_PASSWORD

    ```

    configs/dev/backend-service.properties

    ```

    spring.datasource.url=jdbc:mysql://HOST:PORT/DB?zeroDateTimeBehavior=convertToNull&autoReconnect=true&useUnicode=true&characterEncoding=utf-8

    spring.datasource.username=

    spring.datasource.password=

    spring.datasource.driver-class-name=com.mysql.jdbc.Driver

    

    mybatis-plus.mapper-locations=classpath:/mapper/xml/*.xml, classpath:/mapper/*.xml

    mybatis-plus.type-aliases-package=com.xiyuan.springcloud.mybatis.entity

    mybatis-plus.global-config.refresh-mapper=true

    

    spring.redis.host=HOST

    spring.redis.password=123456

    spring.redis.port=6379

    spring.redis.database=0

    spring.redis.timeout=5000ms

    spring.redis.jedis.pool.max-active=150

    spring.redis.jedis.pool.max-idle=10

    spring.redis.jedis.pool.min-idle=0

    spring.redis.jedis.pool.max-wait=3000ms

    

    spring.data.mongodb.uri=mongodb://USER:PASSWORD@HOST:PORT/DB

    ```

    删除 backend-service/src/main/java/com/xiyuan/springcloud/mybatis 目录下除 MpGenerator 以外的所有文件    

    删除 backend-service/src/main/resources/mapper 目录  

    运行 backend-service/src/main/java/com/xiyuan/springcloud/mybatis/MpGenerator.java 生成dao、mapper、entity、xml  

   

    

# 启动

启动顺序如下：  

config-server  

eureka-server  

gateway

front-service  

backend-service  

hystrix-dashboard  



# 功能

1. 查看节点的健康状况  

    http://localhost:PORT/actuator/health  

    例如：  

    http://localhost:8880/actuator/health  



2. 获取配置  

    下面仅是其中一种模式，更多请参考[官方文档](https://cloud.spring.io/spring-cloud-static/Finchley.RELEASE/single/spring-cloud.html#_quick_start)，  

    http://localhost:8880/{applicationName}/{configType}    

    例如:

    http://localhost:8880/backend-service/default  

    

    查看集群的信息  

    http://localhost:8881  

    

3. 通过 eureka 查看器群中的所有服务      

    http://localhost:8881    

    

4. 用做测试的几个接口

    同一个服务的多种访问形式    

    http://localhost:8900/test  

    http://localhost:8889/test  

    http://localhost:8882/front-service/test  

    集群节点通过bus通信的实例    

    http://localhost:8882/front-service/test/amqp?msg=justTest    

    

5. 刷新配置  

    config-server/src/test/http/refresh.http  

    刷新前后访问 http://localhost:8882/front-service/test 体验配置刷新的效果  

    

6. 加密和解密  

    config-server/src/test/http/encryptDecrypt.http

    

7. 服务调用栈分析

    http://ZIPKIN_SERVER_HOST:9411/zipkin/      

            

8. hystrix dashboard  

    http://localhost:8883/hystrix  

    第一个输入框输入  

    http://localhost:8889/actuator/hystrix.stream  

    然后点击 Monitor Stream  

    

    

# 附录

## 安装 RabbitMQ

```

# 查看 erlang 和 rabbitmq 版本对应关系

https://www.rabbitmq.com/which-erlang.html  



# 下载

wget https://github.com/rabbitmq/erlang-rpm/releases/download/v20.3.6/erlang-20.3.6-1.el7.centos.x86_64.rpm



wget https://dl.bintray.com/rabbitmq/all/rabbitmq-server/3.7.6/rabbitmq-server-3.7.6-1.el7.noarch.rpm  



# 安装 erlang

yum install erlang-20.3.6-1.el7.centos.x86_64.rpm 



# 安装 rabbitmq

rpm --import https://dl.bintray.com/rabbitmq/Keys/rabbitmq-release-signing-key.asc  

yum install rabbitmq-server-3.7.6-1.el7.noarch.rpm    



# start on system boot

chkconfig rabbitmq-server on



# 错误解决

# Error: Too many open files

mkdir -p /etc/systemd/system/rabbitmq-server.service.d

echo '

[Service]

LimitNOFILE=300000

' > /etc/systemd/system/rabbitmq-server.service.d/limits.conf

systemctl daemon-reload



# 启动

systemctl start rabbitmq-server



# 停止

systemctl stop rabbitmq-server



# 状态

systemctl status rabbitmq-server



# 默认端口号

# 4369 (epmd), 25672 (Erlang distribution)

# 5672, 5671 (AMQP 0-9-1 without and with TLS)

# 15672 (if management plugin is enabled)

# 61613, 61614 (if STOMP is enabled)

# 1883, 8883 (if MQTT is enabled)



# 启用management

# https://www.rabbitmq.com/management.html  

# The Web UI is located at: http://server-name:15672/

rabbitmq-plugins enable rabbitmq_management



# 为management添加用户

# https://stackoverflow.com/questions/14699873/how-to-reset-user-for-rabbitmq-management

rabbitmqctl add_user root 123456

rabbitmqctl set_user_tags root administrator

rabbitmqctl set_permissions -p / root ".*" ".*" ".*"



# 打开相应端口

firewall-cmd --zone=public --add-port=5672/tcp --permanent

firewall-cmd --zone=public --add-port=15672/tcp --permanent

firewall-cmd --reload

```



## 安装elasticsearch

```

firewall-cmd --zone=public --add-port=9200/tcp --permanent

firewall-cmd --reload



# 添加 elasticsearch 相关的用户和用户组

groupadd elasticsearch

useradd -g elasticsearch elasticsearch



# 用root用户安装，以elasticsearch用户运行



mkdir -p /usr/env/

cd /usr/env/

wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-6.0.0.rpm

rpm -ivh elasticsearch-6.0.0.rpm

rm -f elasticsearch-6.0.0.rpm

systemctl daemon-reload



vi /etc/elasticsearch/elasticsearch.yml

# 修改配置

cluster.name: es

node.name: ${HOSTNAME}

network.host: 0.0.0.0

http.port: 9200



vi /etc/sysconfig/elasticsearch

JAVA_HOME=YOUR_JDK_HOME



# 启动

systemctl start elasticsearch



# 开机启动

systemctl enable elasticsearch

```



## 部署 zipkin-server  

https://github.com/openzipkin/zipkin/tree/master/zipkin-server  

```

firewall-cmd --zone=public --add-port=9411/tcp --permanent

firewall-cmd --reload



mkdir -p /usr/env/zipkin-server

cd /usr/env/zipkin-server



curl -sSL https://zipkin.io/quickstart.sh | bash -s

echo -e '

#!/usr/bin/env bash

export RABBIT_ADDRESSES=localhost

export STORAGE_TYPE=elasticsearch 

export ES_HOSTS=http://localhost:9200

nohup java -jar zipkin.jar &

' > startup.sh

chmod +x startup.sh



echo -e '

#!/usr/bin/env bash

pids=$(ps -ef | grep " zipkin.jar$" | awk '"'"'{print $2}'"'"')

if [ "$pids " != " " ]; then

    for pid in $pids; do

        echo "kill -9 $pid"

        kill -9 $pid

    done

fi

' > shutdown.sh

chmod +x shutdown.sh



./startup.sh

```