升级java11 ,和spring cloud 2.1.1后，默认的mysql driverclass 是这个 com.mysql.cj.jdbc.Driver，报错如下：

Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaConfiguration.class]: Unsatisfied dependency expressed through method 'entityManagerFactory' parameter 0; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'entityManagerFactoryBuilder' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaConfiguration.class]: Unsatisfied dependency expressed through method 'entityManagerFactoryBuilder' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jpaVendorAdapter' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.orm.jpa.JpaVendorAdapter]: Factory method 'jpaVendorAdapter' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'scopedTarget.dataSource' defined in class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Hikari.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.zaxxer.hikari.HikariDataSource]: Factory method 'dataSource' threw exception; nested exception is java.lang.IllegalStateException: Cannot load driver class: com.mysql.cj.jdbc.Driver
        at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:769)
        at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:509)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1288)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1127)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:538)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:498)
        at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
        at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1083)
        at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:853)
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:546)
        at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:775)
        at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:316)
        at org.springframework.boot.test.context.SpringBootContextLoader.loadContext(SpringBootContextLoader.java:127)
        at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:99)
        at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:117)
        ... 28 more

解决如下,替换原来的依赖

原来

 <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.6</version>
        </dependency>

替换为,或者不指定版本，跟随spring boot

 <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
<version>8.0.13</version>
        </dependency>

spring cloud gateway 自带了个限流器filter，就是RequestRateLimiter，可以使用令牌桶算法来限流

先说下令牌桶算法，就是：每秒向令牌桶放N个令牌，令牌桶的最大容积是M个，那么如果请求过来了，会从令牌桶中拿出一个令牌，令牌桶还剩M-1个。以此类推，当令牌桶的数量还剩0个的时候，就拒绝接受请求。所以这个情况可以支持突发性的请求情况。就是我一致很小量的请求，但是突然来了一大波请求，令牌桶容积决定了它能接受的最大突发情况。

首先看下spring cloud gateway的配置，注意要用到redis

    - id: lb2thorquest
        uri: lb://THORQUEST
        order: 9999
        predicates:
        - Host=10.1.0.75:9001
        filters:
        - name: RequestRateLimiter
          args:
            redis-rate-limiter.replenishRate: 1  # 令牌桶放入的速度
            redis-rate-limiter.burstCapacity: 3  # 令牌桶的容积
            key-resolver: "#{@remoteAddrKeyResolver}" #SPEL表达式去的对应的bean
  redis:
    host: 10.10.2.175
    port: 6379
    database: 5

引入redis

 <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis-reactive</artifactId>
        </dependency>

这个key resolver会生成一个key，为这个key生成一个令牌桶。如果是客户端ip，那么就是为每个ip生成一个令牌桶。如果是个固定值，就是全局的令牌桶。

  @Bean
    KeyResolver remoteAddrKeyResolver() {
        return exchange -> Mono.just(Objects.requireNonNull(exchange.getRequest().getRemoteAddress()).getHostName());
    }

那么使劲刷新url，出现429 too many request 就表示成功了，

jenkins maven 3.3.9 编译docker 插件报错

编译命令如下:

mvn clean install -D dockerfile.skip=true

报错如下：

[ERROR] Failed to execute goal com.spotify:docker-maven-plugin:1.2.0:build (default-cli) on project thor-quest: Exception caught: java.util.concurrent.ExecutionException: com.spotify.docker.client.shaded.javax.ws.rs.ProcessingException: com.spotify.docker.client.shaded.org.apache.http.conn.HttpHostConnectException: Connect to localhost:2375 [localhost/127.0.0.1, localhost/0:0:0:0:0:0:0:1] failed: Connection refused: connect -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal com.spotify:docker-maven-plugin:1.2.0:build (default-cli) on project thor-quest: Exception caught
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:154)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:146)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:956)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:290)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:194)
    at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:498)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:289)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:229)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:415)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:356)
Caused by: org.apache.maven.plugin.MojoExecutionException: Exception caught
    at com.spotify.docker.AbstractDockerMojo.execute (AbstractDockerMojo.java:151)
    at com.spotify.docker.BuildMojo.execute (BuildMojo.java:324)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:208)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:154)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:146)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:956)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:290)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:194)
    at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:498)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:289)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:229)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:415)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:356)
Caused by: com.spotify.docker.client.exceptions.DockerException: java.util.concurrent.ExecutionException: com.spotify.docker.client.shaded.javax.ws.rs.ProcessingException: com.spotify.docker.client.shaded.org.apache.http.conn.HttpHostConnectException: Connect to localhost:2375 [localhost/127.0.0.1, localhost/0:0:0:0:0:0:0:1] failed: Connection refused: connect
    at com.spotify.docker.client.DefaultDockerClient.propagate (DefaultDockerClient.java:2828)
    at com.spotify.docker.client.DefaultDockerClient.request (DefaultDockerClient.java:2692)
    at com.spotify.docker.client.DefaultDockerClient.version (DefaultDockerClient.java:580)
    at com.spotify.docker.client.DefaultDockerClient.authRegistryHeader (DefaultDockerClient.java:2871)
    at com.spotify.docker.client.DefaultDockerClient.build (DefaultDockerClient.java:1478)
    at com.spotify.docker.client.DefaultDockerClient.build (DefaultDockerClient.java:1445)
    at com.spotify.docker.BuildMojo.buildImage (BuildMojo.java:623)
    at com.spotify.docker.BuildMojo.execute (BuildMojo.java:403)
    at com.spotify.docker.AbstractDockerMojo.execute (AbstractDockerMojo.java:149)
    at com.spotify.docker.BuildMojo.execute (BuildMojo.java:324)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:208)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:154)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:146)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:956)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:290)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:194)
    at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:498)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:289)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:229)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:415)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:356)
Caused by: java.util.concurrent.ExecutionException: com.spotify.docker.client.shaded.javax.ws.rs.ProcessingException: com.spotify.docker.client.shaded.org.apache.http.conn.HttpHostConnectException: Connect to localhost:2375 [localhost/127.0.0.1, localhost/0:0:0:0:0:0:0:1] failed: Connection refused: connect
    at jersey.repackaged.com.google.common.util.concurrent.AbstractFuture$Sync.getValue (AbstractFuture.java:299)
    at jersey.repackaged.com.google.common.util.concurrent.AbstractFuture$Sync.get (AbstractFuture.java:286)
    at jersey.repackaged.com.google.common.util.concurrent.AbstractFuture.get (AbstractFuture.java:116)
    at com.spotify.docker.client.DefaultDockerClient.request (DefaultDockerClient.java:2690)
    at com.spotify.docker.client.DefaultDockerClient.version (DefaultDockerClient.java:580)
    at com.spotify.docker.client.DefaultDockerClient.authRegistryHeader (DefaultDockerClient.java:2871)
    at com.spotify.docker.client.DefaultDockerClient.build (DefaultDockerClient.java:1478)
    at com.spotify.docker.client.DefaultDockerClient.build (DefaultDockerClient.java:1445)
    at com.spotify.docker.BuildMojo.buildImage (BuildMojo.java:623)
    at com.spotify.docker.BuildMojo.execute (BuildMojo.java:403)
    at com.spotify.docker.AbstractDockerMojo.execute (AbstractDockerMojo.java:149)
    at com.spotify.docker.BuildMojo.execute (BuildMojo.java:324)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:208)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:154)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:146)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:956)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:290)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:194)
    at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:498)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:289)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:229)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:415)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:356)
Caused by: com.spotify.docker.client.shaded.javax.ws.rs.ProcessingException: com.spotify.docker.client.shaded.org.apache.http.conn.HttpHostConnectException: Connect to localhost:2375 [localhost/127.0.0.1, localhost/0:0:0:0:0:0:0:1] failed: Connection refused: connect
    at com.spotify.docker.client.shaded.org.glassfish.jersey.apache.connector.ApacheConnector.apply (ApacheConnector.java:481)
    at com.spotify.docker.client.shaded.org.glassfish.jersey.apache.connector.ApacheConnector$1.run (ApacheConnector.java:491)
    at java.util.concurrent.Executors$RunnableAdapter.call (Executors.java:511)
    at java.util.concurrent.FutureTask.run (FutureTask.java:266)
    at jersey.repackaged.com.google.common.util.concurrent.MoreExecutors$DirectExecutorService.execute (MoreExecutors.java:299)
    at java.util.concurrent.AbstractExecutorService.submit (AbstractExecutorService.java:112)
    at jersey.repackaged.com.google.common.util.concurrent.AbstractListeningExecutorService.submit (AbstractListeningExecutorService.java:50)
    at jersey.repackaged.com.google.common.util.concurrent.AbstractListeningExecutorService.submit (AbstractListeningExecutorService.java:37)
    at com.spotify.docker.client.shaded.org.glassfish.jersey.apache.connector.ApacheConnector.apply (ApacheConnector.java:487)
    at com.spotify.docker.client.shaded.org.glassfish.jersey.client.ClientRuntime$2.run (ClientRuntime.java:178)
    at com.spotify.docker.client.shaded.org.glassfish.jersey.internal.Errors$1.call (Errors.java:271)
    at com.spotify.docker.client.shaded.org.glassfish.jersey.internal.Errors$1.call (Errors.java:267)
    at com.spotify.docker.client.shaded.org.glassfish.jersey.internal.Errors.process (Errors.java:315)
    at com.spotify.docker.client.shaded.org.glassfish.jersey.internal.Errors.process (Errors.java:297)
    at com.spotify.docker.client.shaded.org.glassfish.jersey.internal.Errors.process (Errors.java:267)
    at com.spotify.docker.client.shaded.org.glassfish.jersey.process.internal.RequestScope.runInScope (RequestScope.java:340)
    at com.spotify.docker.client.shaded.org.glassfish.jersey.client.ClientRuntime$3.run (ClientRuntime.java:210)
    at java.util.concurrent.Executors$RunnableAdapter.call (Executors.java:511)
    at java.util.concurrent.FutureTask.run (FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:624)
    at java.lang.Thread.run (Thread.java:748)
Caused by: com.spotify.docker.client.shaded.org.apache.http.conn.HttpHostConnectException: Connect to localhost:2375 [localhost/127.0.0.1, localhost/0:0:0:0:0:0:0:1] failed: Connection refused: connect
    at com.spotify.docker.client.shaded.org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect (DefaultHttpClientConnectionOperator.java:151)
    at com.spotify.docker.client.shaded.org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect (PoolingHttpClientConnectionManager.java:353)
    at com.spotify.docker.client.shaded.org.apache.http.impl.execchain.MainClientExec.establishRoute (MainClientExec.java:380)
    at com.spotify.docker.client.shaded.org.apache.http.impl.execchain.MainClientExec.execute (MainClientExec.java:236)
    at com.spotify.docker.client.shaded.org.apache.http.impl.execchain.ProtocolExec.execute (ProtocolExec.java:184)
    at com.spotify.docker.client.shaded.org.apache.http.impl.execchain.RetryExec.execute (RetryExec.java:88)
    at com.spotify.docker.client.shaded.org.apache.http.impl.execchain.RedirectExec.execute (RedirectExec.java:110)
    at com.spotify.docker.client.shaded.org.apache.http.impl.client.InternalHttpClient.doExecute (InternalHttpClient.java:184)
    at com.spotify.docker.client.shaded.org.apache.http.impl.client.CloseableHttpClient.execute (CloseableHttpClient.java:71)
    at com.spotify.docker.client.shaded.org.glassfish.jersey.apache.connector.ApacheConnector.apply (ApacheConnector.java:435)
    at com.spotify.docker.client.shaded.org.glassfish.jersey.apache.connector.ApacheConnector$1.run (ApacheConnector.java:491)
    at java.util.concurrent.Executors$RunnableAdapter.call (Executors.java:511)
    at java.util.concurrent.FutureTask.run (FutureTask.java:266)
    at jersey.repackaged.com.google.common.util.concurrent.MoreExecutors$DirectExecutorService.execute (MoreExecutors.java:299)
    at java.util.concurrent.AbstractExecutorService.submit (AbstractExecutorService.java:112)
    at jersey.repackaged.com.google.common.util.concurrent.AbstractListeningExecutorService.submit (AbstractListeningExecutorService.java:50)
    at jersey.repackaged.com.google.common.util.concurrent.AbstractListeningExecutorService.submit (AbstractListeningExecutorService.java:37)
    at com.spotify.docker.client.shaded.org.glassfish.jersey.apache.connector.ApacheConnector.apply (ApacheConnector.java:487)
    at com.spotify.docker.client.shaded.org.glassfish.jersey.client.ClientRuntime$2.run (ClientRuntime.java:178)
    at com.spotify.docker.client.shaded.org.glassfish.jersey.internal.Errors$1.call (Errors.java:271)
    at com.spotify.docker.client.shaded.org.glassfish.jersey.internal.Errors$1.call (Errors.java:267)
    at com.spotify.docker.client.shaded.org.glassfish.jersey.internal.Errors.process (Errors.java:315)
    at com.spotify.docker.client.shaded.org.glassfish.jersey.internal.Errors.process (Errors.java:297)
    at com.spotify.docker.client.shaded.org.glassfish.jersey.internal.Errors.process (Errors.java:267)
    at com.spotify.docker.client.shaded.org.glassfish.jersey.process.internal.RequestScope.runInScope (RequestScope.java:340)
    at com.spotify.docker.client.shaded.org.glassfish.jersey.client.ClientRuntime$3.run (ClientRuntime.java:210)
    at java.util.concurrent.Executors$RunnableAdapter.call (Executors.java:511)
    at java.util.concurrent.FutureTask.run (FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:624)
    at java.lang.Thread.run (Thread.java:748)
Caused by: java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect (Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect (DualStackPlainSocketImpl.java:85)
    at java.net.AbstractPlainSocketImpl.doConnect (AbstractPlainSocketImpl.java:350)
    at java.net.AbstractPlainSocketImpl.connectToAddress (AbstractPlainSocketImpl.java:206)
    at java.net.AbstractPlainSocketImpl.connect (AbstractPlainSocketImpl.java:188)
    at java.net.PlainSocketImpl.connect (PlainSocketImpl.java:172)
    at java.net.SocksSocketImpl.connect (SocksSocketImpl.java:392)
    at java.net.Socket.connect (Socket.java:589)
    at com.spotify.docker.client.shaded.org.apache.http.conn.socket.PlainConnectionSocketFactory.connectSocket (PlainConnectionSocketFactory.java:74)
    at com.spotify.docker.client.shaded.org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect (DefaultHttpClientConnectionOperator.java:134)
    at com.spotify.docker.client.shaded.org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect (PoolingHttpClientConnectionManager.java:353)
    at com.spotify.docker.client.shaded.org.apache.http.impl.execchain.MainClientExec.establishRoute (MainClientExec.java:380)
    at com.spotify.docker.client.shaded.org.apache.http.impl.execchain.MainClientExec.execute (MainClientExec.java:236)
    at com.spotify.docker.client.shaded.org.apache.http.impl.execchain.ProtocolExec.execute (ProtocolExec.java:184)
    at com.spotify.docker.client.shaded.org.apache.http.impl.execchain.RetryExec.execute (RetryExec.java:88)
    at com.spotify.docker.client.shaded.org.apache.http.impl.execchain.RedirectExec.execute (RedirectExec.java:110)
    at com.spotify.docker.client.shaded.org.apache.http.impl.client.InternalHttpClient.doExecute (InternalHttpClient.java:184)
    at com.spotify.docker.client.shaded.org.apache.http.impl.client.CloseableHttpClient.execute (CloseableHttpClient.java:71)
    at com.spotify.docker.client.shaded.org.glassfish.jersey.apache.connector.ApacheConnector.apply (ApacheConnector.java:435)
    at com.spotify.docker.client.shaded.org.glassfish.jersey.apache.connector.ApacheConnector$1.run (ApacheConnector.java:491)
    at java.util.concurrent.Executors$RunnableAdapter.call (Executors.java:511)
    at java.util.concurrent.FutureTask.run (FutureTask.java:266)
    at jersey.repackaged.com.google.common.util.concurrent.MoreExecutors$DirectExecutorService.execute (MoreExecutors.java:299)
    at java.util.concurrent.AbstractExecutorService.submit (AbstractExecutorService.java:112)
    at jersey.repackaged.com.google.common.util.concurrent.AbstractListeningExecutorService.submit (AbstractListeningExecutorService.java:50)
    at jersey.repackaged.com.google.common.util.concurrent.AbstractListeningExecutorService.submit (AbstractListeningExecutorService.java:37)
    at com.spotify.docker.client.shaded.org.glassfish.jersey.apache.connector.ApacheConnector.apply (ApacheConnector.java:487)
    at com.spotify.docker.client.shaded.org.glassfish.jersey.client.ClientRuntime$2.run (ClientRuntime.java:178)
    at com.spotify.docker.client.shaded.org.glassfish.jersey.internal.Errors$1.call (Errors.java:271)
    at com.spotify.docker.client.shaded.org.glassfish.jersey.internal.Errors$1.call (Errors.java:267)
    at com.spotify.docker.client.shaded.org.glassfish.jersey.internal.Errors.process (Errors.java:315)
    at com.spotify.docker.client.shaded.org.glassfish.jersey.internal.Errors.process (Errors.java:297)
    at com.spotify.docker.client.shaded.org.glassfish.jersey.internal.Errors.process (Errors.java:267)
    at com.spotify.docker.client.shaded.org.glassfish.jersey.process.internal.RequestScope.runInScope (RequestScope.java:340)
    at com.spotify.docker.client.shaded.org.glassfish.jersey.client.ClientRuntime$3.run (ClientRuntime.java:210)
    at java.util.concurrent.Executors$RunnableAdapter.call (Executors.java:511)
    at java.util.concurrent.FutureTask.run (FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:624)
    at java.lang.Thread.run (Thread.java:748)
[ERROR]
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException

解决办法：升级到maven 3.5以上，而且有时候必须升级jenkins，否则会报错：

java.lang.NoSuchFieldError: DEFAULT_USER_SETTINGS_FILE