对于生产者，要使用Pact Broker中的Pact文件，我们可以重复使用与外部合同相同的机制。我们通过包含pact://协议的URL路由Spring Cloud Contract以使用Pact实现。只需将URL传递给Pact Broker。可以在此处找到此类设置的示例。

Maven. 

<plugin>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-contract-maven-plugin</artifactId>
    <version>${spring-cloud-contract.version}</version>
    <extensions>true</extensions>
    <configuration>
        <!-- Base class mappings etc. -->

        <!-- We want to pick contracts from a Git repository -->
        <contractsRepositoryUrl>pact://http://localhost:8085</contractsRepositoryUrl>

        <!-- We reuse the contract dependency section to set up the path
        to the folder that contains the contract definitions. In our case the
        path will be /groupId/artifactId/version/contracts -->
        <contractDependency>
            <groupId>${project.groupId}</groupId>
            <artifactId>${project.artifactId}</artifactId>
            <!-- When + is passed, a latest tag will be applied when fetching pacts -->
            <version>+</version>
        </contractDependency>

        <!-- The contracts mode can't be classpath -->
        <contractsMode>REMOTE</contractsMode>
    </configuration>
    <!-- Don't forget to add spring-cloud-contract-pact to the classpath! -->
    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-contract-pact</artifactId>
            <version>${spring-cloud-contract.version}</version>
        </dependency>
    </dependencies>
</plugin>

Gradle. 

buildscript {
	repositories {
		//...
	}

	dependencies {
		// ...
		// Don't forget to add spring-cloud-contract-pact to the classpath!
		classpath "org.springframework.cloud:spring-cloud-contract-pact:${contractVersion}"
	}
}

contracts {
	// When + is passed, a latest tag will be applied when fetching pacts
	contractDependency {
		stringNotation = "${project.group}:${project.name}:+"
	}
	contractRepository {
		repositoryUrl = "pact://http://localhost:8085"
	}
	// The mode can't be classpath
	contractsMode = "REMOTE"
	// Base class mappings etc.
}

通过这样的设置：