spring-cloud-function Dependency Pulling Failure

Symptom

If the compilation environment requires a proxy for connecting to the Internet, dependencies may fail to be pulled.

Key Process and Cause Analysis

The compilation environment needs to access the Internet through a proxy.

Conclusion and Solution

You can configure a proxy, or replace the Maven repository with the Huawei Maven repository to solve the problem.

Method 1: Configuring a Proxy

1. Open the DependencyResolver.java file.

   vim ./spring-cloud-function-compiler/src/main/java/org/springframework/cloud/function/compiler/java/DependencyResolver.java

2. Modify the following code. Save the file and exit.
   • Add the following content below line 81:

     import org.eclipse.aether.repository.Proxy;

     

   • Modify line 280 as follows:

     .setReleasePolicy(policy(input.getReleases()))

   • Add the following content to line 281:

     .setProxy(new Proxy("https","127.0.0.1",3128)).build();

     In the preceding example, 127.0.0.1 and 3128 indicate the IP address and port number of the proxy host. Replace them with the actual ones.

     

3. Press Esc, type :wq!, and press Enter to save the file and exit.
4. Open the RuntimeJavaCompilerTests.java file.

   vim ./spring-cloud-function-compiler/src/test/java/org/springframework/cloud/function/compiler/java/RuntimeJavaCompilerTests.java

5. In line 142, change find to transfer.

   

6. Press Esc, type :wq!, and press Enter to save the file and exit.
7. Run the compile command again.

   ./mvnw clean install -Dgpg.skip=true

Method 2: Replacing the Maven Repository with the Huawei Maven Repository

1. Open the DependencyResolver.java file.

   vim ./spring-cloud-function-compiler/src/main/java/org/springframework/cloud/function/compiler/java/DependencyResolver.java

2. Change the Maven repository to Huawei Kunpeng Maven.

   

3. Add the IP address of the Huawei Kunpeng Maven repository to /etc/hosts.

   1 2	echo 172.30.163.193 mirrors.huaweicloud.com >> /etc/hosts cat /etc/hosts

4. Add a proxy for the spring-cloud-function-deployer module.

   vim spring-cloud-function-deployer/src/it/settings.xml

   Change the values of username, password, host and port as required.

   

5. Run the compile command again.

   ./mvnw clean install -Dgpg.skip=true