pom.xml
<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.example</groupId>
<artifactId>customer-client</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>demo</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.8.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
<spring-cloud.version>Dalston.SR4</spring-cloud.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-feign</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-contract-stub-runner</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
要注意的只有記得引入 spring-cloud-starter-contract-stub-runner 依賴
測試時
CustcomerClientTest.java
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.cloud.contract.stubrunner.spring.AutoConfigureStubRunner;
import org.springframework.core.ParameterizedTypeReference;
import org.springframework.http.HttpMethod;
import org.springframework.http.ResponseEntity;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.web.client.RestTemplate;
import static org.junit.Assert.assertEquals;
@RunWith(SpringRunner.class)
@SpringBootTest(classes = DemoApplication.class, webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
@AutoConfigureStubRunner(ids = {"com.example:customer-service:+:8866"}, workOffline = true)
public class CustcomerClientTest {
@Autowired
private RestTemplate restTemplate;
@Test
public void testGetCustomers() {
ParameterizedTypeReference<Page> ptf =
new ParameterizedTypeReference<Page>() {
};
ResponseEntity<Page> responseEntity =
restTemplate.exchange("http://localhost:8866/api/customers", HttpMethod.GET, null, ptf);
assertEquals("size error!", 2, responseEntity.getBody().getData().size());
}
}
只要在註解 AutoConfigureStubRunner ids 標記你要啟動那些服務的 stub,
格式是長這樣 groupId:artifactId:version:classifier:port
之後沒有遠端的服務也可以正常測試了
workOffline = true 是指使用本地 maven 庫,不要使用線上的版本,所以你只要把 Consumer 在你本機上 install 過就可以了
參考資料:
https://github.com/spring-cloud/spring-cloud-contract
http://cloud.spring.io/spring-cloud-static/Dalston.SR4/multi/multi__spring_cloud_contract_stub_runner.html
https://spring.io/blog/2017/10/25/spring-tips-spring-cloud-contract-http
技术干货 | 消费者驱动契约(CDC) 之 SpringCloud Contracts
Marcin Grzejszczak访谈:Spring Cloud Contract