FEAT: merge [feat_1.0_springCloud_xiaofu]

gateway/pom.xml

@@ -0,0 +1,44 @@
+<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>
+    <parent>
+        <groupId>org.codenotknock</groupId>
+        <artifactId>SpringDemo</artifactId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+    <artifactId>gateway</artifactId>
+    <packaging>jar</packaging>
+    <name>gateway</name>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+
+<!--        gateway 网关服务 -->
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-starter-gateway</artifactId>
+        </dependency>
+<!--        整合nacos-->
+        <dependency>
+            <groupId>com.alibaba.cloud</groupId>
+            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
+        </dependency>
+<!--        sentinel 整合 gateway-->
+        <dependency>
+            <groupId>com.alibaba.cloud</groupId>
+            <artifactId>spring-cloud-alibaba-sentinel-gateway</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>com.alibaba.cloud</groupId>
+            <artifactId>spring-cloud-starter-alibaba-sentinel</artifactId>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <finalName>gateway</finalName>
+    </build>
+</project>

gateway/src/main/java/org/codenotknock/GatewayApplication.java

@@ -0,0 +1,13 @@
+package org.codenotknock;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+
+@SpringBootApplication
+public class GatewayApplication{
+
+    public static void main(String[] args) {
+        SpringApplication.run(GatewayApplication.class, args);
+    }
+}

gateway/src/main/resources/application-demo.yml

@@ -0,0 +1,17 @@
+server:
+  port: 9990
+spring:
+  application:
+    name: api-gateway
+  cloud:
+    gateway:
+      discovery:
+        locator:
+          enabled: true  # 是否启动自动识别nacos服务
+
+    # 配置nacos
+    nacos:
+        discovery:
+          server-addr: 127.0.0.1:8847
+          username: nacos
+          password: nacos

gateway/src/main/resources/application.yml

@@ -0,0 +1,26 @@
+server:
+  port: 9990
+spring:
+  application:
+    name: api-gateway
+  cloud:
+    gateway:
+      # 路由规则
+      routes:
+        - id: order_route    # 路由的唯一标识
+          uri: lb://order-service   # lb：LoadBalancer 使用 nacos本地负载均衡策略
+          #uri: http://localhost:8888  # 需要转发到的地址
+          # 断言规则：用于路由规则的匹配
+          predicates:
+          - Path=/order-server/**
+          # http://localhost:8080/order-server/order/add
+          # 转发到 http://localhost:8888/order-server/order/add
+          filters:
+            - StripPrefix=1 # 转发之前 去除第一层路径 变成 http://localhost:8888/order/add
+    # 配置nacos
+    nacos:
+      discovery:
+        server-addr: 127.0.0.1:8847
+        username: nacos
+        password: nacos
+

order-fegin/pom.xml

@@ -0,0 +1,34 @@
+<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/maven-v4_0_0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.codenotknock</groupId>
+        <artifactId>SpringDemo</artifactId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+    <artifactId>order-fegin</artifactId>
+    <packaging>jar</packaging>
+    <name>order-fegin</name>
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+
+        <!--        nacos-服务注册发现 依赖   不加版本号 idea 不加载 奇怪？？？-->
+        <dependency>
+            <groupId>com.alibaba.cloud</groupId>
+            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
+            <version>2021.0.4.0</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-starter-openfeign</artifactId>
+        </dependency>
+
+    </dependencies>
+    <build>
+        <finalName>order-fegin</finalName>
+    </build>
+</project>

order-fegin/src/main/java/org/codenotknock/order/OrderNacosApplication.java

@@ -0,0 +1,19 @@
+package org.codenotknock.order;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.web.client.RestTemplateBuilder;
+import org.springframework.cloud.client.loadbalancer.LoadBalanced;
+import org.springframework.cloud.openfeign.EnableFeignClients;
+import org.springframework.cloud.openfeign.FeignClient;
+import org.springframework.context.annotation.Bean;
+import org.springframework.web.client.RestTemplate;
+
+@SpringBootApplication
+@EnableFeignClients
+public class OrderNacosApplication {
+    public static void main(String[] args) {
+        SpringApplication.run(OrderNacosApplication.class, args);
+    }
+
+}

order-fegin/src/main/java/org/codenotknock/order/config/Feginconfig.java

@@ -0,0 +1,21 @@
+package org.codenotknock.order.config;
+
+import feign.Logger;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+/**
+ * @author xiaofu
+        * 远程调用的全局配置 日志
+        * 全局配置：当使用 @Configuration 时，会将其配置作用于所有的服务提供方
+        * 局部配置：针对某一个服务进行配置，就不要加注解 @Configuration
+ */
+@Configuration
+public class Feginconfig {
+
+    @Bean
+    public Logger.Level feginLoggerLevel() {
+        return Logger.Level.FULL;
+    }
+
+}

order-fegin/src/main/java/org/codenotknock/order/controller/OrderController.java

@@ -0,0 +1,28 @@
+package org.codenotknock.order.controller;
+
+import org.codenotknock.order.fegin.StockFeginService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+/**
+ * @author xiaofu
+ * @date 2023/12/20 2:10
+ */
+
+@RestController
+@RequestMapping("/order")
+public class OrderController {
+
+    @Autowired
+    private StockFeginService stockFeginService;
+
+
+    @PostMapping("/add")
+    public String add() {
+        System.out.println("下单成功！");
+        String msg = stockFeginService.reduce();
+        return "下单成功！" + msg ;
+    }
+}

order-fegin/src/main/java/org/codenotknock/order/fegin/StockFeginService.java

@@ -0,0 +1,34 @@
+package org.codenotknock.order.fegin;
+
+import org.codenotknock.order.config.Feginconfig;
+import org.springframework.cloud.openfeign.FeignClient;
+import org.springframework.web.bind.annotation.GetMapping;
+
+/**
+ * @author xiaofu
+ * fegin 的使用 展示 : 底层是动态代理
+ * name : 指定调用 rest 接口所对应的服务名
+ * path : 指定调用 rest 接口所在的 StockController 指定的 @RequestMapping
+ */
+
+@FeignClient(name="stock-service", path = "/stock", configuration = Feginconfig.class)
+public interface StockFeginService {
+    // 声明需要调用的 rest 接口对应的方法
+    @GetMapping("/reduce")
+    String reduce();
+
+}
+
+/*
+
+public class StockController {
+
+    @GetMapping("/reduce")
+    public String reduce() {
+        System.out.println("库存减少！");
+        return "库存减少！";
+    }
+}
+
+ */
+

order-fegin/src/main/resources/application.yml

@@ -0,0 +1,26 @@
+server:
+  port: 10000
+
+# 应用名称 nacos会将应用名称当作服务名称
+spring:
+  application:
+    name: order-service
+  cloud:
+    nacos:
+      server-addr: 127.0.0.1:8848
+      discovery:
+        username: nacos   # 登录 nacos 的用户名 默认也是 nacos
+        password: nacos   # 登录 nacos 的密码 默认也是 nacos
+        namespace: dev    # 命名空间 默认是 public   隔离不同的服务示例 比如dev、uat、prod 不同的环境
+        ephemeral: false  # 是否为临时示例   true: 临时实例   false：永久实例 即使服务挂掉依然存在
+
+#  spring的默认日志级别info fegin的日志级别为debug
+logging:
+  level:
+    org.codenotknock.order.fegin: debug
+# fegin 对应服务日志配置
+feign:
+  client:
+    config:
+      stock-service:
+        logger-level: BASIC

order-loadbalancer/pom.xml

@@ -0,0 +1,36 @@
+<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/maven-v4_0_0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.codenotknock</groupId>
+        <artifactId>SpringDemo</artifactId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+    <artifactId>order-loadbalancer</artifactId>
+    <packaging>jar</packaging>
+    <name>order-loadbalancer</name>
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+
+        <!--        nacos-服务注册发现 依赖   不加版本号 idea 不加载 奇怪？？？-->
+        <dependency>
+            <groupId>com.alibaba.cloud</groupId>
+            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
+            <version>2021.0.4.0</version>
+        </dependency>
+
+<!--        nacos 2021 及之后的版本已经移除了Ribbon支持，如果需要实现负载均衡，
+            官方推荐替代方案是采用Spring Cloud LoadBalancer，-->
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+             <artifactId>spring-cloud-starter-loadbalancer</artifactId>
+        </dependency>
+
+    </dependencies>
+    <build>
+        <finalName>order-loadbalancer</finalName>
+    </build>
+</project>