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springAlibaba实践(12)----�|�关配置

zzsuje — Tue, 10 May 2022 07:15:00 GMT

�|�关

发送请求需要知道商品服务的地址�Q�如果商品服务器�?00服务器，1��h��U�后�Q?/div>

�q�得改，所以需要网兛_��态地��理�Q�他能从注册中心中实时地感知某个服务�?/div>

�U�还是下�Uѝ�?/div>

��h��也要加上询问权限�Q�看用户有没有权限访问这个请求，也需要网兟�?/div>

所以我们��用spring cloud的gateway�l��g做网兛_��能�?/div>

�|�关是请求浏览的入口�Q�常用功能包括�\�?span style="background-color: yellow;">转发�Q?span style="background-color: yellow;">权限校验�Q?span style="background-color: yellow;">限流控制�{�。springcloud gateway取代了zuul�|�关�?/div>

三大核心概念�Q?/div>

Route: The basic building block of the gateway. It is defined by an ID, a

destination URI, a collection of predicates断言, and a collection of filters.

A route is matched if the aggregate predicate is true.

发一个请求给�|�关�Q�网兌��请求�\由到指定的服务�?br />路由有id�Q?/span>
目的地uri�Q?/span>
断言的集合，
匚w��了断�a��p��到达指定位置�Q?/div>

Predicate断言:
This is a Java 8 Function Predicate. The input type is a Spring

Framework ServerWebExchange. This lets you match on anything from the

HTTP request, such as headers or parameters.��是java里的断言函数�Q�匹配请求里的�Q何信息，包括��h��头等

Filter:
These are instances of Spring Framework GatewayFilter that have been

constructed with a specific factory. Here, you can modify requests and

responses before or after sending the downstream request.

�q��o器请求和响应都可以被修改�?/div>

客户端发��h��l�服务端。中间有�|�关。先交给映射器，如果能处理就交给handler

处理�Q�然后交�l�一�p�d��filer�Q�然后给指定的服务，再返回回来给客户端�?/div>

12.1 创徏模块gulimall-gateway

com.zyn.glmall
glmall-common
0.0.1-SNAPSHOT

1 在pom.xml引入

版本环境需保持一�?/div>

2.1.8.RELEASE

Greenwich.SR3

2 开启注册服务发现@EnableDiscoveryClient

@SpringBootApplication(exclude = {DataSourceAutoConfiguration.class})
@EnableDiscoveryClient
public class GulimallGatewayApplication {
    public static void main(String[] args) {
        SpringApplication.run(GulimallGatewayApplication.class, args);
    }
}

3 配置nacos注册中心地址applicaion.properties

spring.application.name=glmall-gateway
spring.cloud.nacos.discovery.server-addr=192.168.11.1:8848
server.port=88

4 bootstrap.properties 填写配置中心地址

spring.application.name=glmall-coupon
spring.cloud.nacos.config.server-addr=192.168.11.1:8848
spring.cloud.nacos.config.namespace=a791fa0e-cef8-47ee-8f07-5ac5a63ea061

5 nacos里创建命名空间gateway�Q�然后在命名�I�间里创建文件glmall-gateway.yml

spring:
application:
name: glmall-gateway

6 在项目里创徏application.yml

spring:
  cloud:
    gateway:
      routes:
        - id: baidu_route
          uri: http://www.baidu.com
          predicates:
            - Query=url,baidu

        - id: test_route
          uri: http://www.qq.com
          predicates:
            - Query=url,qq

��试 localhost:8080?url=baidu # 跛_��癑ֺ��面

��试 localhost:8080?url=baidu # 跛_��qq��面

zzsuje 2022-05-10 15:15 发表评论

springAlibaba实践(11)----Nacos配置中心配置

zzsuje — Mon, 09 May 2022 06:55:00 GMT

摘要: Nacos配置中心我们�q�可以用nacos作�ؓ配置中心。配�|�中心的意思是不在application.properties�{�文件中配置了，而是攑ֈ�nacos配置中心公用�Q�这��h��需每台机器都改�?1.1 引入配置中心依赖�Q�放到common中Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHigh... 阅读全文

zzsuje 2022-05-09 14:55 发表评论

springAlibaba实践(10)----OpenFegin配置

zzsuje — Fri, 06 May 2022 06:45:00 GMT

10.0 Feign与注册中�?br />

声明式远�E�调�?/strong>

feign是一个声明式的HTTP客户端，他的目的��是让远�E�调用更加简单�?/strong>

�l�远�E�服务发的是HTTP��h��?br />

会员服务�Q�member�Q�调优惠券（coupon�Q�服�?br />会员服务通过openFeign先去注册中心找优惠券服务

10.1 引入 openfeign 依赖
会员服务惌��q�程调用优惠券服务，只需要给会员服务里引入openfeign依赖�Q�他��有了远�E�调用其他服务的能力�?/div>

    org.springframework.cloud
    spring-cloud-starter-openfeign

10.2 在coupon服务(被调用服�?中修改如下的内容
@RequestMapping("coupon/coupon")
public class CouponController {
    @Autowired
    private CouponService couponService;
    @RequestMapping("/member/list")
    public R membercoupons(){    //全系�l�的所有返回都�q�回R
        // 应该��L��据库查用户对于的优惠券，但这个我们简化了�Q�不��L��据库查了�Q�构造了一个优惠券�l�他�q�回
        CouponEntity couponEntity = new CouponEntity();
        couponEntity.setCouponName("�?00�?0");//优惠券的名字
        return R.ok().put("coupons",Arrays.asList(couponEntity));
    }
10.3 �q�样我们准备好了优惠券的调用内容
在member的配�|�类上加注解@EnableFeignClients(basePackages="com.yxj.gulimall.member.feign")�Q?/div>
告诉spring�q�里面是一个远�E�调用客��L��Q�member要调用的接口
package com.yxj.gulimall.member;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.openfeign.EnableFeignClients;
@SpringBootApplication
@MapperScan("com.yxj.gulimall.member.dao")
@EnableDiscoveryClient
@EnableFeignClients(basePackages="com.yxj.gulimall.member.feign")
public class GulimallMemberApplication {
    public static void main(String[] args) {
        SpringApplication.run(GulimallMemberApplication.class, args);
    }
}

10.4 那么要调用什么东西呢�Q�就是我
们刚才写的优惠券的功能，
复制函数部分�Q�在member的com.yxj.gulimall.member.feign包下新徏�c�：
package com.yxj.gulimall.member.feign;
import com.yxj.common.utils.R;
import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.web.bind.annotation.RequestMapping;
@FeignClient("gulimall-coupon") //告诉spring cloud�q�个接口是一个远�E�客��L��Q�要调用coupon服务�Q�再去调用coupon服务/coupon/coupon/member/list对应的方�?/span>
public interface CouponFeignService {
    @RequestMapping("/coupon/coupon/member/list")
    public R membercoupons();//得到一个R对象
}
10.5 然后我们在member的控制层写一个测试请�?/strong>
@RestController
@RequestMapping("member/member")
public class MemberController {
    @Autowired
    private MemberService memberService;
    @Autowired
    CouponFeignService couponFeignService;
    @RequestMapping("/coupons")
    public R test(){
        MemberEntity memberEntity = new MemberEntity();
        memberEntity.setNickname("张三");
        R membercoupons = couponFeignService.membercoupons(); //假设张三��L��据库查了后返回了张三的优惠券信息
        // 打印会员和优惠券信息
        return R.ok().put("member",memberEntity).put("coupons",membercoupons.get("coupons"));
    }

10.6 重新启动服务
http://localhost:8000/member/member/coupons
{"msg":"success","code":0,"coupons":[{"id":null,"couponType":null,"couponImg":null,"couponName":"�?00�?0","num":null,"amount":null,"perLimit":null,"minPoint":null,"startTime":null,"endTime":null,"useType":null,"note":null,"publishCount":null,"useCount":null,"receiveCount":null,"enableStartTime":null,"enableEndTime":null,"code":null,"memberLevel":null,"publish":null}],"member":{"id":null,"levelId":null,"username":null,"password":null,"nickname":"张三","mobile":null,"email":null,"header":null,"gender":null,"birth":null,"city":null,"job":null,"sign":null,"sourceType":null,"integration":null,"growth":null,"status":null,"createTime":null}}

10.7 上面内容很重要，我们停留5分钟体会一�?br />coupon里的R.ok()是什�?# coupon里的控制层就是new了个couponEntity然后攑ֈ�hashmap�Q�R�Q�里而已�?/div>
public class R extends HashMap {
    public static R ok() {
        return new R();
    }
    public R put(String key, Object value) {
        super.put(key, value);
        return this;
    }
}

zzsuje 2022-05-06 14:45 发表评论

springAlibaba实践(8)----Nacos安装(Linux)

zzsuje — Fri, 06 May 2022 01:10:00 GMT
     摘要: 1、拉取镜�? 1 docker pull nacos/nacos-server ...  阅读全文

zzsuje 2022-05-06 09:10 发表评论

springAlibaba实践(7)---逆向工程搭徏

zzsuje — Thu, 05 May 2022 06:10:00 GMT

逆向工程搭徏
7.1 product
git clone https://gitee.com/renrenio/renren-generator.git
下蝲到桌面后�Q�同��h��里面�?git文�g删除�Q�然后移动到我们IDEA��目目录中，同样配置好pom.xml(root)
在common��目中增加module
gulimall-coupon
gulimall-member
gulimall-order
gulimall-product
gulimall-ware
renren-fast
renren-generator
修改renren-generator的application.yml
url: jdbc:mysql://192.168.1.103:3306/gulimall-pms?useUnicode=true&characterEncoding=UTF-8&useSSL=false&serverTimezone=Asia/Shanghai
username: root
password: root
修改generator.properties
mainPath=com.yxj # �ȝ��?/div>
package=com.yxj.gulimall # 包名
moduleName=product # 模块�?/div>
author=yxj # 作�?/div>
email=xxx@qq.com # email
tablePrefix=pms_ # 我们的pms数据库中的表的前�~�都有pms�Q?/div>
如果写了表前�~��Q�每一张表对于的javaBean��׃��会添加前�~��?/div>
�q�行RenrenApplication。如果启动不成功�Q�修改application中是port�?0。访问http://localhost:80
然后点击全部�Q�点�ȝ��成代码。下载了压羃�?/div>
解压压羃包，把main攑ֈ�gulimall-product的同�U�目录下�?/div>
在common��目的pom.xml�Q�我们把每个微服务里公共的类和依赖放到common里。）中添�?/div>
com.baomidou
mybatis-plus-boot-starter
3.3.2
org.projectlombok
lombok
1.18.8
org.apache.httpcomponents
httpcore
4.4.13
commons-lang
commons-lang
2.6
然后在product��目中的pom.xml中加入下面内�?/div>
com.atguigu.gulimall
gulimall-common
0.0.1-SNAPSHOT
复制
renren-fast----utils包下的Query和PageUtils、R、Constant复制到common��目的java/com.yxj.common.utils�?/div>
把@RequiresPermissions�q�些注解掉，因�ؓ是shiro�?/div>
复制renren-fast中的xss包粘贴到common的java/com.yxj.common目录下�?/div>
�q�复制了exception文�g夹，对应的位�|�关�p�自��p��察一下就�?/div>
注释掉product��目下类中的//import org.apache.shiro.authz.annotation.RequiresPermissions;�Q�他是shiro的东�?/div>
注释renren-generator\src\main\resources\template/Controller中所有的
# @RequiresPermissions�?/div>
# import org.apache.shiro.authz.annotation.RequiresPermissions;
��M��什么报错就去renren-fast里面找�?/div>
��试
��试与整合商品服务里的mybatisplus
在common的pom.xml中导�?/div>
mysql
mysql-connector-java
8.0.17
在码云上搜烦��Z�h开源，我们使用renren-fast�Q�renren-fast-vue��目�?br /> git clone https://gitee.com/renrenio/renren-fast.git

git clone https://gitee.com/renrenio/renren-fast-vue.git

下蝲��C��桌面�Q�我们把renren-fast�U�d��到我们的��目文�g夹（删掉.git文�g�Q�，而renren-fast-vue是用VSCode打开的（后面再弄�Q?/div>

6.2修改配置文�g 启动��目
  然后修改��目里renren-fast中的application.yml�Q?br />   修改application-dev.yml中的数库库的
  url: jdbc:mysql://192.168.1.103:3306/gulimall_admin?useUnicode=true&characterEncoding=UTF-8&serverTimezone=Asia/Shanghai
  username: root password: root
  然后执行java下的RenrenApplication
  ��览器输入http://localhost:8080/renren-fast/
  得到{“msg”:“invalid token”,“code”:401}��׃��表无�?/span>

6.3用VSCode打开renren-fast-vue
6.3.1 安装node�Q?br /> 版本为v10.16.3
          讄��node镜像仓库
          npm config set registry http://registry.npm.taobao.org/ # 讄��node仓库。提高下载速度
6.3.2  在终端中输入命��o�Q?/span>npm install�Q�安装项目所需依赖�?/span>
6.3.3  安装完成后，输入命��o�Q?/span>npm run dev�Q�运行项目�?/span>
��览器输入localhost:8001 ��可以看到内容了�Q�登录�̎号admin 密码admin

zzsuje 2022-04-26 16:49 发表评论

springAlibaba实践(5)----SQL语句

zzsuje — Tue, 26 Apr 2022 07:39:00 GMT
     摘要: 5.1sql语句Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->gulimall-oms.sqldrop table if exists oms_order;drop table if&nbs...  阅读全文

zzsuje 2022-04-26 15:39 发表评论

springAlibaba实践(4)----��目新徏

zzsuje — Tue, 26 Apr 2022 03:17:00 GMT
     摘要: 4.1从gitee上导入项�?Idea配置Git4.2新徏��目成功4.3创徏��目微服务商品服�?仓储服务订单服务优惠券服�?用户服务共同�Q?�Q�web,openFeign2) 每一个服务，包名�Q�com.zyn.glmall.XXX(product,order,ware,coupon,member)3) 模块�?glmall-coupon4.3.1拯��一个pom文�g�l�聚合项...  阅读全文

zzsuje 2022-04-26 11:17 发表评论

springAlibaba实践(3)----Git配置

zzsuje — Mon, 25 Apr 2022 09:22:00 GMT
     摘要: 3.1安装Git3.1.1讄��自己的git信息�q�入右键 git bashgit config --global user.name "Firstname Lastname" �Q�此处name可修改也不是用于��d��github的登录名�Q�git config --global user.email "your_email@yourema...  阅读全文

zzsuje 2022-04-25 17:22 发表评论

springAlibaba实践(2)----Docker安装

zzsuje — Sun, 24 Apr 2022 07:45:00 GMT

2.1安装Docker

2.1.1docker 卸蝲
$sudo yum remove docker \
docker-client \
docker-client-latest \
docker-common \
docker-latest \
docker-latest-logrotate \
docker-logrotate \
docker-engine
2.1.2 安装yum工具�?/span>
   sudo yum install -y yum-utils
2.1.3 告诉Linux,Docker��d��里获取镜像安�?/strong>
sudo yum-config-manager \ --add-repo \ https://download.docker.com/linux/centos/docker-ce.repo

2.1.4安装Docker
sudo yum install docker-ce docker-ce-cli containerd.io

2.1.5安装完成�?查看是否成功
docker -v 查看docker版本

docker images   查看docker 已有镜像 �Q�未启动�Q?/p>

2.1.6 启动docker
sudo systemctl start docker

2.1.7讄��docker 开机启�?/strong>

2.1.8 使用阉K��云的镜像加速器   在阿里云的控制台�?找��品和服务 ---容器镜像服务---镜像加速器

https://cr.console.aliyun.com/cn-hangzhou/instances/mirrors
sudo mkdir -p /etc/docker sudo tee /etc/docker/daemon.json <<-'EOF' { "registry-mirrors": ["https://d6gqzuc3.mirror.aliyuncs.com"] } EOF sudo systemctl daemon-reload sudo systemctl restart docker

2.2 在Docker中安装mysql
2.2.1安装mysql
https://hub.docker.com/_/mysql?tab=tags&page=1&ordering=last_updated
docker pull mysql:5.7
2.2.2 安装成功�?查看镜像
docker images
2.2.3讄��端口映射
sudo docker run -p 3306:3306 --name mysql \
-v /mydata/mysql/log:/var/log/mysql \
-v /mydata/mysql/data:/var/lib/mysql \
-v /mydata/mysql/conf:/etc/mysql \
-e MYSQL_ROOT_PASSWORD=root \
-d mysql:5.7

2.2.4 docker ps 查看已启用的容器
2.2.5 修改配日志文�?/span>
[client]
default-character-set=utf8
[mysql]
default-character-set=utf8
[mysqld]
init_connect='SET collation_connection = utf8_unicode_ci'
init_connect='SET NAMES utf8'
character-set-server=utf8
collation-server=utf8_unicode_ci
skip-character-set-client-handshake
skip-name-resolve
2.2.6保存�?重启讄�� 启动docker�?卌��行mysql
docker update mysql --restart=always

2.3Docker 安装Redis
2.3.1安装Redis
docker pull redis
2.3.2 配置Redis服务
# 创徏配置�g存储路径
mkdir -p /mydata/redis/conf
# 创徏配置�g
touch /mydata/redis/conf/redis.conf
# 填写配置信息【数据持久化AOF�?/div>
echo "appendonly yes" >> /mydata/redis/conf/redis.conf

启动redis镜像
docker run -p 6379:6379 --name redis \
-v /mydata/redis/data:/data \
-v /mydata/redis/conf/redis.conf:/etc/redis/redis.conf \
-d redis redis-server /etc/redis/redis.conf

命��o说明�Q?/strong>
-p 10001:6379 : ��容器的6379端口映射��C��机的10001端口
--name redis : 容器名字
-v /data/redis/redis.conf:/etc/redis/redis.conf : ��主��Z��配置文�g挂蝲到容器中
-v /data/redis/data:/data : ��主��Z��data挂蝲到容器的/data
redis-server --appendonly yes : 在容器执行redis-server启动命��o�Q��ƈ打开redis持久化配�|?/strong>
redis-server /etc/redis/redis.conf : 容器中以配置文�g方式启动redis
2.3.3��试redis
# �q�⼊redis容器�Q��ƈ且执�q�redis-cli的命�?/div>
docker exec -it redis redis-cli
2.3.4讄��redis容器在Docker启动的时候启�?/strong>
docker update redis --restart=always

zzsuje 2022-04-24 15:45 发表评论

欧美有码在线观看,三级资源在线,亚洲超碰精品一区二区

springAlibaba实践(12)----�|�关配置

springAlibaba实践(11)----Nacos配置中心配置

springAlibaba实践(10)----OpenFegin配置

springAlibaba实践(8)----Nacos安装(Linux)

springAlibaba实践(7)---逆向工程搭徏

springAlibaba实践(5)----SQL语句

springAlibaba实践(4)----��目新徏

springAlibaba实践(3)----Git配置

springAlibaba实践(2)----Docker安装

2.1.6 启动docker

2.1.7讄���docker 开机启�?/strong>

2.1.7讄��docker 开机启�?/strong>