在使用Java客户端启动Docker容器时拒绝连接

我是docker新手，我想用java客户端启动docker容器，

我尝试https://github.com/docker-java/docker-java如下

package containers.launch_containers; import com.github.dockerjava.api.DockerClient; import com.github.dockerjava.core.DockerClientBuilder; public class StartContainers{ DockerClient dockerClient; public StartContainers() { startContainers(); } public void startContainers() { try { dockerClient = DockerClientBuilder.getInstance("tcp://127.0.0.1:2375").build(); //starting the container of hello-world dockerClient.startContainerCmd("hello-world").exec(); }catch(Exception ex) { ex.printStackTrace(); } } public static void main(String args[]) { StartContainers startContainers=new StartContainers(); } } 

在bashrc中设置所需的configuration

导出DOCKER_HOST = tcp：//127.0.0.1：2375

export DOCKER_OPTS =“ – H tcp：//127.0.0.1：2375 -H unix：///var/run/docker.sock”

本地主机中的Docker镜像

我有这个例外

javax.ws.rs.ProcessingException：org.apache.http.conn.HttpHostConnectException：连接到127.0.0.1:2375 [/ 127.0.0.1]失败：连接被拒绝（连接被拒绝）在org.glassfish.jersey.apache.connector。 ApacheConnector.apply（ApacheConnector.java:481）位于org.glassfish.jersey.client.JerseyInvocation的org.glassfish.jersey.client.ClientRuntime.invoke（ClientRuntime.java:252）$ 1.call（JerseyInvocation.java:684）at org.glassfish.jersey.client.JerseyInvocation $ 1.call（JerseyInvocation.java:681）org.glassfish.jersey.internal.Errors.process（Errors.java:315）at org.glassfish.jersey.internal.Errors.process （Errors.java:297）org.glassfish.jersey.internal.Errors.process（Errors.java:228）org.glassfish.jersey.process.internal.RequestScope.runInScope（RequestScope.java:444）at org。在org.glassfish.jersey.client.JerseyInvocation上的glassfish.jersey.client.JerseyInvocation.invoke（JerseyInvocation.java:681）org.glassfish.jersey.client.JerseyInvocation $ Builder.method（JerseyInvocation.java:437）$ B uilder.post（JerseyInvocation.java:343）at com.github.dockerjava.jaxrs.StartContainerCmdExec.execute（StartContainerCmdExec.java:29）at com.github.dockerjava.jaxrs.StartContainerCmdExec.execute（StartContainerCmdExec.java:12）at com .github.dockerjava.jaxrs.AbstrSyncDockerCmdExec.exec（AbstrSyncDockerCmdExec.java:23）at com.github.dockerjava.core.command.AbstrDockerCmd.exec（AbstrDockerCmd.java:35）at com.github.dockerjava.core.command.StartContainerCmdImpl .exec（StartContainerCmdImpl.java:46）在containers.launch_containers.StartContainers.startContainers（StartContainers.java:18）位于containers.launch_containers.StartContainers。（StartContainers.java:10）位于containers.launch_containers.StartContainers.main（StartContainers.java ：29）

Answer 1

我解决了这个问题，我应该得到如下的Container Id

  dockerClient = DockerClientBuilder.getInstance().build(); //starting the container CreateContainerResponse container = dockerClient.createContainerCmd("hello-world") .withCmd() .exec(); dockerClient.startContainerCmd(container.getId()).exec(); //stop the container dockerClient.stopContainerCmd(container.getId()).exec(); 

参考

https://github.com/docker-java/docker-java/wiki