可以使用以下代码段执行此操作

import com.amazonaws.services.simplesystemsmanagement.AWSSimpleSystemsManagementClient
import com.amazonaws.services.simplesystemsmanagement.model.GetParameterRequest
import com.amazonaws.services.simplesystemsmanagement.model.GetParameterResult
    // create a client AWSSimpleSystemsManagementClient object
    val client = new AWSSimpleSystemsManagementClient()
    // Create a GetParameterRequest object, which send the actual request
    val req = new GetParameterRequest()
    // set the name of the parameter in the object. 
    req.setName("test")
    // Only needed if the parameter is a secureString encrypted with the default kms key. If you're using a CMK you need to add the glue user as a key user. To do so, navigate to KMS console --> Customer Managed Keys --> Click on KMS key used for encryption --> Under Key policies --> Key user --> Add ( Add the Glue role )
    req.setWithDecryption(true)
    // call the getParameter() function on the object
    val param = client.getParameter(req)

记住给你的胶水角色iam权限给ssm了！