springboot集成springcloud gateway_spring cloud gateway 和 spring boot整合-CSDN博客

本文链接：https://blog.csdn.net/u013008898/article/details/131398157

该文章展示了如何在SpringBoot项目中使用POM文件配置依赖，以集成Nacos作为服务注册中心和配置中心。同时，配置了SpringCloudGateway，并在YAML文件中设置了路由规则和跨域策略。应用程序通过@EnableDiscoveryClient注解启用服务发现功能。

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pom:

<?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> org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.3.7.RELEASE</version>
        <relativePath />
    </parent>
    <groupId>com.kjwl</groupId>
    <artifactId>common-gateway</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>common-gateway</name>
    <description>Demo project for Spring Boot</description>
    <properties>
        <java.version>1.8</java.version>
    </properties>
    <dependencies>

        <!-- nacos-discovery注册中心依赖 -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>

        <!-- nacos-config配置中心依赖 -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
        </dependency>

        <!-- gateway依赖 -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-gateway</artifactId>
        </dependency>

    </dependencies>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                <version>2.2.1.RELEASE</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>Hoxton.SR3</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.8.1</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <version>2.3.7.RELEASE</version>
                <configuration>
                    <mainClass>com.kjwl.common.gateway.CommonGatewayApplication</mainClass>
                </configuration>
                <executions>
                    <execution>
                        <id>repackage</id>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

    <repositories>
        <repository>
            <id>nexus-aliyun</id>
            <name>nexus-aliyun</name>
            <url>http://maven.aliyun.com/nexus/content/groups/public/</url>
            <releases>
                <enabled>true</enabled>
            </releases>
            <snapshots>
                <enabled>false</enabled>
            </snapshots>
        </repository>
    </repositories>

    <pluginRepositories>
        <pluginRepository>
            <id>public</id>
            <name>aliyun nexus</name>
            <url>http://maven.aliyun.com/nexus/content/groups/public/</url>
            <releases>
                <enabled>true</enabled>
            </releases>
            <snapshots>
                <enabled>false</enabled>
            </snapshots>
        </pluginRepository>
    </pluginRepositories>

</project>

yml:

server:
  port: 8081
spring:
  cloud:
    # nacos 配置
    nacos:
      # 服务注册配置
      discovery:
        server-addr: 127.0.0.1:8848

    # gateway 配置
    gateway:
      discovery:
        locator:
          #表明gateway开启服务注册和发现的功能，并且spring cloud gateway自动根据服务发现为每一个服务创建了一个router，这个router将以服务名开头的请求路径转发到对应的服务
          enabled: true
          #是将请求路径上的服务名配置为小写（因为服务注册的时候，向注册中心注册时将服务名转成大写的了
          lowerCaseServiceId: true
          #另一种写法
          #lower-case-service-id: true
      #路由配置
      routes:
        # nacos中的服务1（每个服务中可集群多个应用，可在nacos中配置与治理）
        - id: fast-admin
          uri: lb://fast-admin
          predicates:
            - Path=/fast-admin/**
          filters:
            # 校验
            # 去除一个前缀
            - StripPrefix=1

      #跨域设置
      globalcors:
        corsConfigurations:
          '[/**]':
            allowedOriginPatterns: "*"
            allowed-methods: "*"
            allowed-headers: "*"
            allow-credentials: true
            exposedHeaders: "Content-Disposition,Content-Type,Cache-Control"

logging:
  level:
    com.alibaba.nacos.client.*: WARN

application:

package com.kjwl.common.gateway;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;

@SpringBootApplication
@EnableDiscoveryClient
public class CommonGatewayApplication {

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

}

客户端:

pom

        <!-- nacos-discovery注册中心依赖 -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>
        
        <!-- nacos-config配置中心依赖 -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
        </dependency>


  <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>${spring-boot.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                <version>2.2.1.RELEASE</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>Hoxton.SR3</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

yml:

spring:
    cloud:
        nacos:
            username: nacos
            password: nacos
            discovery:
                server-addr: 127.0.0.1:8848

application:

package com.kjwl.fast.admin;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;

@EnableDiscoveryClient
@SpringBootApplication
public class FastAdminApplication {

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

}