这里分类和汇总了欣宸的全部原创(含配套源码):https://github.com/zq2599/blog_demos
本篇实战中的完整源码可在GitHub下载到,地址和链接信息如下表所示(https://github.com/zq2599/blog_demos):
名称 链接 备注 项目主页 https://github.com/zq2599/blog_demos 该项目在GitHub上的主页 git仓库地址(https) https://github.com/zq2599/blog_demos.git 该项目源码的仓库地址,https协议 git仓库地址(ssh) git@github.com:zq2599/blog_demos.git 该项目源码的仓库地址,ssh协议
这个git项目中有多个文件夹,本篇的源码在spring-cloud-tutorials文件夹下,如下图红框所示:
package com.bolingcavalry.provider.controller;
import com.bolingcavalry.common.Constants;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import java.text.SimpleDateFormat;
import java.util.Date;
@RestController
@RequestMapping("/lbtest")
public class LBTest {
private String dateStr(){
return new SimpleDateFormat("yyyy-MM-dd hh:mm:ss").format(new Date());
}
/** * 返回字符串类型 * @return */
@GetMapping("/str")
public String helloStr() {
return Constants.LB_PREFIX + ", " + dateStr();
}
}
package com.bolingcavalry.common;
public interface Constants {
String HELLO_PREFIX = "Hello World";
String LB_PREFIX = "Load balance";
}
<dependencies>
<dependency>
<groupId>com.bolingcavalry</groupId>
<artifactId>common</artifactId>
<version>${project.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-gateway</artifactId>
</dependency>
<dependency>
<groupId>io.projectreactor</groupId>
<artifactId>reactor-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<!-- 路由策略使用lb的方式是,这个依赖一定要有 -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-loadbalancer</artifactId>
</dependency>
<!--nacos:注册中心-->
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
</dependency>
</dependencies>
server:
#服务端口
port: 8085
spring:
application:
name: gateway-by-loadbalance
cloud:
nacos:
# 注册中心的配置
discovery:
server-addr: 127.0.0.1:8848
gateway:
routes:
- id: path_route_lb
uri: lb://provider-hello
predicates:
- Path=/lbtest/**
package com.bolingcavalry.gateway;
import com.bolingcavalry.common.Constants;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.web.reactive.AutoConfigureWebTestClient;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.http.MediaType;
import org.springframework.test.context.junit.jupiter.SpringExtension;
import org.springframework.test.web.reactive.server.WebTestClient;
import static org.junit.jupiter.api.Assertions.assertTrue;
@SpringBootTest
@ExtendWith(SpringExtension.class)
@AutoConfigureWebTestClient
public class HelloTest {
@Autowired
private WebTestClient webClient;
@Test
void testLoadBalance() {
webClient.get()
.uri("/lbtest/str")
.accept(MediaType.APPLICATION_JSON)
.exchange()
// 验证状态
.expectStatus().isOk()
// 验证结果,注意结果是字符串格式
.expectBody(String.class).consumeWith(result -> assertTrue(result.getResponseBody().contains(Constants.LB_PREFIX)));
}
}
<dependencies>
<dependency>
<groupId>com.bolingcavalry</groupId>
<artifactId>common</artifactId>
<version>${project.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-gateway</artifactId>
</dependency>
<dependency>
<groupId>io.projectreactor</groupId>
<artifactId>reactor-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<!-- 使用bootstrap.yml的时候,这个依赖一定要有 -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-bootstrap</artifactId>
</dependency>
<!-- 路由策略使用lb的方式是,这个依赖一定要有 -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-loadbalancer</artifactId>
</dependency>
<!--nacos:配置中心-->
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
</dependency>
<!--nacos:注册中心-->
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
</dependency>
</dependencies>
spring:
application:
name: gateway-nacos-config
cloud:
nacos:
config:
server-addr: 127.0.0.1:8848
file-extension: yml
group: DEFAULT_GROUP
server:
port: 8083
spring:
cloud:
gateway:
routes:
- id: path_route_addr
uri: http://127.0.0.1:8082
predicates:
- Path=/hello/**
- id: path_route_lb
uri: lb://provider-hello
predicates:
- Path=/lbtest/**
@Test
void testHelloPredicates() {
webClient.get()
.uri("/hello/str")
.accept(MediaType.APPLICATION_JSON)
.exchange()
// 验证状态
.expectStatus().isOk()
// 验证结果,注意结果是字符串格式
.expectBody(String.class).consumeWith(result -> assertTrue(result.getResponseBody().contains(Constants.HELLO_PREFIX)));
}
@Test
void testLoadBalance() {
webClient.get()
.uri("/lbtest/str")
.accept(MediaType.APPLICATION_JSON)
.exchange()
// 验证状态
.expectStatus().isOk()
// 验证结果,注意结果是字符串格式
.expectBody(String.class).consumeWith(result -> assertTrue(result.getResponseBody().contains(Constants.LB_PREFIX)));
}
package com.bolingcavalry.gateway.cofig;
import org.springframework.cloud.gateway.route.RouteLocator;
import org.springframework.cloud.gateway.route.builder.RouteLocatorBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
@Configuration
public class RouteConfig {
@Bean
public RouteLocator customizeRoute(RouteLocatorBuilder builder) {
return builder
.routes()
.route(
// 第一个参数是路由的唯一身份
"path_route_lb",
// 第二个参数是个lambda实现,
// 设置了配套条件是按照请求路径匹配,以及转发地址,
// 注意lb://表示这是个服务名,要从
r -> r.path("/lbtest/**").uri("lb://provider-hello")
)
.build();
}
}
server:
#服务端口
port: 8084
spring:
application:
name: gateway-by-code
cloud:
nacos:
discovery:
# nacos服务地址
server-addr: 127.0.0.1:8848
gateway:
routes:
- id: path_route_addr
uri: http://127.0.0.1:8082
predicates:
- Path=/hello/**
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原文链接 : https://blog.csdn.net/boling_cavalry/article/details/119592175
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