那些遇到过的问题

mvn deploy 未加载 S3 凭据

pup*_*eno 2 amazon-s3 maven

我正在将 Gradle 项目转换为 Maven，我正在做的一件事是将 Jar 部署到 S3。我已经配置了这样的分布：

<distributionManagement>
    <repository>
        <id>aws-release</id>
        <name>AWS Release Repository</name>
        <url>s3://projectx-support/maven2/release</url>
    </repository>
    <snapshotRepository>
        <id>aws-snapshots</id>
        <name>AWS Snapshot Repository</name>
        <url>s3://projectx-support/maven2/snapshots</url>
    </snapshotRepository>
</distributionManagement>
Run Code Online (Sandbox Code Playgroud)

我试过：

<extensions>
    <extension>
        <groupId>org.springframework.build</groupId>
        <artifactId>aws-maven</artifactId>
        <version>5.0.0.RELEASE</version>
    </extension>
</extensions>
Run Code Online (Sandbox Code Playgroud)

和

<extensions>
    <extension>
        <groupId>org.kuali.maven.wagons</groupId>
        <artifactId>maven-s3-wagon</artifactId>
        <version>1.2.1</version>
    </extension>
</extensions>
Run Code Online (Sandbox Code Playgroud)

在这两种情况下，我都会遇到相同的错误：

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-deploy-plugin:2.7:deploy (default-deploy) on project projectxcommon: Failed to retrieve remote metadata tech.projectx:projectxcommon:1.0.0-SNAPSHOT/maven-metadata.xml: Could not transfer metadata tech.projectx:projectxcommon:1.0.0-SNAPSHOT/maven-metadata.xml from/to aws-snapshots (s3://projectx-support/maven2/snapshots): Unable to load AWS credentials from any provider in the chain -> [Help 1]
Run Code Online (Sandbox Code Playgroud)

在调试模式下运行时，这些是警告/错误：

[DEBUG] Configuration override awssdk_config_override.json not found.
[DEBUG] Unable to load credentials from EnvironmentVariableCredentialsProvider: Unable to load AWS credentials from environment variables (AWS_ACCESS_KEY_ID (or AWS_ACCESS_KEY) and AWS_SECRET_KEY (or AWS_SECRET_ACCESS_KEY))
[DEBUG] Unable to load credentials from SystemPropertiesCredentialsProvider: Unable to load AWS credentials from Java system properties (aws.accessKeyId and aws.secretKey)
[DEBUG] Connecting to EC2 instance metadata service at URL: http://169.254.169.254/latest/meta-data/iam/security-credentials/
[DEBUG] Unable to load credentials from InstanceProfileCredentialsProvider: Unable to load credentials from Amazon EC2 metadata service
[DEBUG] Unable to load credentials from org.springframework.build.aws.maven.AuthenticationInfoAWSCredentialsProvider@19ed4e8: null
[WARNING] Could not transfer metadata tech.projectx:projectxcommon:1.0.0-SNAPSHOT/maven-metadata.xml from/to aws-snapshots (s3://projectx-support/maven2/snapshots): Unable to load AWS credentials from any provider in the chain
Run Code Online (Sandbox Code Playgroud)

运行时-e这是堆栈跟踪：

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-deploy-plugin:2.7:deploy (default-deploy) on project projectxcommon: Failed to retrieve remote metadata tech.projectx:projectxcommon:1.0.0-SNAPSHOT/maven-metadata.xml: Could not transfer metadata tech.projectx:projectxcommon:1.0.0-SNAPSHOT/maven-metadata.xml from/to aws-snapshots (s3://projectx-
support/maven2/snapshots): Unable to load AWS credentials from any provider in the chain -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-deploy-plugin:2.7:deploy (default-deploy) on project projectxcommon: Failed to retrieve remote metadata tech.projectx:projectxcommon:1.0.0-SNAPSHOT/maven-metadata.xml: Could not transfer metadata tech.projectx:projectxcommon:1.0.0-SNAPSHOT/maven-m
etadata.xml from/to aws-snapshots (s3://projectx-support/maven2/snapshots): Unable to load AWS credentials from any provider in the chain
    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: Failed to retrieve remote metadata tech.projectx:projectxcommon:1.0.0-SNAPSHOT/maven-metadata.xml: Could not transfer metadata tech.projectx:projectxcommon:1.0.0-SNAPSHOT/maven-metadata.xml from/to aws-snapshots (s3://projectx-support/maven2/snapshots): Unable to load AWS credentials from any prov
ider in the chain
    at org.apache.maven.plugin.deploy.DeployMojo.execute (DeployMojo.java:193)
    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: org.apache.maven.artifact.deployer.ArtifactDeploymentException: Failed to retrieve remote metadata tech.projectx:projectxcommon:1.0.0-SNAPSHOT/maven-metadata.xml: Could not transfer metadata tech.projectx:projectxcommon:1.0.0-SNAPSHOT/maven-metadata.xml from/to aws-snapshots (s3://projectx-support/maven2/snapshots): Unable to load AWS credentia
ls from any provider in the chain
    at org.apache.maven.artifact.deployer.DefaultArtifactDeployer.deploy (DefaultArtifactDeployer.java:146)
    at org.apache.maven.plugin.deploy.AbstractDeployMojo.deploy (AbstractDeployMojo.java:167)
    at org.apache.maven.plugin.deploy.DeployMojo.execute (DeployMojo.java:157)
    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: org.eclipse.aether.deployment.DeploymentException: Failed to retrieve remote metadata tech.projectx:projectxcommon:1.0.0-SNAPSHOT/maven-metadata.xml: Could not transfer metadata tech.projectx:projectxcommon:1.0.0-SNAPSHOT/maven-metadata.xml from/to aws-snapshots (s3://projectx-support/maven2/snapshots): Unable to load AWS credentials from any p
rovider in the chain
    at org.eclipse.aether.internal.impl.DefaultDeployer.upload (DefaultDeployer.java:425)
    at org.eclipse.aether.internal.impl.DefaultDeployer.deploy (DefaultDeployer.java:268)
    at org.eclipse.aether.internal.impl.DefaultDeployer.deploy (DefaultDeployer.java:223)
    at org.eclipse.aether.internal.impl.DefaultRepositorySystem.deploy (DefaultRepositorySystem.java:384)
    at org.apache.maven.artifact.deployer.DefaultArtifactDeployer.deploy (DefaultArtifactDeployer.java:142)
    at org.apache.maven.plugin.deploy.AbstractDeployMojo.deploy (AbstractDeployMojo.java:167)
    at org.apache.maven.plugin.deploy.DeployMojo.execute (DeployMojo.java:157)
    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: org.eclipse.aether.transfer.MetadataTransferException: Could not transfer metadata tech.projectx:projectxcommon:1.0.0-SNAPSHOT/maven-metadata.xml from/to aws-snapshots (s3://projectx-support/maven2/snapshots): Unable to load AWS credentials from any provider in the chain
    at org.eclipse.aether.connector.basic.MetadataTransportListener.transferFailed (MetadataTransportListener.java:52)
    at org.eclipse.aether.connector.basic.BasicRepositoryConnector$TaskRunner.run (BasicRepositoryConnector.java:365)
    at org.eclipse.aether.util.concurrency.RunnableErrorForwarder$1.run (RunnableErrorForwarder.java:75)
    at org.eclipse.aether.connector.basic.BasicRepositoryConnector$DirectExecutor.execute (BasicRepositoryConnector.java:583)
    at org.eclipse.aether.connector.basic.BasicRepositoryConnector.get (BasicRepositoryConnector.java:232)
    at org.eclipse.aether.internal.impl.DefaultDeployer.upload (DefaultDeployer.java:395)
    at org.eclipse.aether.internal.impl.DefaultDeployer.deploy (DefaultDeployer.java:268)
    at org.eclipse.aether.internal.impl.DefaultDeployer.deploy (DefaultDeployer.java:223)
    at org.eclipse.aether.internal.impl.DefaultRepositorySystem.deploy (DefaultRepositorySystem.java:384)
    at org.apache.maven.artifact.deployer.DefaultArtifactDeployer.deploy (DefaultArtifactDeployer.java:142)
    at org.apache.maven.plugin.deploy.AbstractDeployMojo.deploy (AbstractDeployMojo.java:167)
    at org.apache.maven.plugin.deploy.DeployMojo.execute (DeployMojo.java:157)
    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.amazonaws.AmazonClientException: Unable to load AWS credentials from any provider in the chain
    at com.amazonaws.auth.AWSCredentialsProviderChain.getCredentials (AWSCredentialsProviderChain.java:117)
    at com.amazonaws.services.s3.AmazonS3Client.invoke (AmazonS3Client.java:3377)
    at com.amazonaws.services.s3.AmazonS3Client.invoke (AmazonS3Client.java:3336)
    at com.amazonaws.services.s3.AmazonS3Client.getBucketLocation (AmazonS3Client.java:669)
    at com.amazonaws.services.s3.AmazonS3Client.getBucketLocation (AmazonS3Client.java:677)
    at org.springframework.build.aws.maven.SimpleStorageServiceWagon.connectToRepository (SimpleStorageServiceWagon.java:86)
    at org.springframework.build.aws.maven.AbstractWagon.connect (AbstractWagon.java:146)
    at org.eclipse.aether.transport.wagon.WagonTransporter.connectWagon (WagonTransporter.java:342)
    at org.eclipse.aether.transport.wagon.WagonTransporter.pollWagon (WagonTransporter.java:382)
    at org.eclipse.aether.transport.wagon.WagonTransporter.execute (WagonTransporter.java:431)
    at org.eclipse.aether.transport.wagon.WagonTransporter.get (WagonTransporter.java:412)
    at org.eclipse.aether.connector.basic.BasicRepositoryConnector$GetTaskRunner.runTask (BasicRepositoryConnector.java:453)
    at org.eclipse.aether.connector.basic.BasicRepositoryConnector$TaskRunner.run (BasicRepositoryConnector.java:360)
    at org.eclipse.aether.util.concurrency.RunnableErrorForwarder$1.run (RunnableErrorForwarder.java:75)
    at org.eclipse.aether.connector.basic.BasicRepositoryConnector$DirectExecutor.execute (BasicRepositoryConnector.java:583)
    at org.eclipse.aether.connector.basic.BasicRepositoryConnector.get (BasicRepositoryConnector.java:232)
    at org.eclipse.aether.internal.impl.DefaultDeployer.upload (DefaultDeployer.java:395)
    at org.eclipse.aether.internal.impl.DefaultDeployer.deploy (DefaultDeployer.java:268)
    at org.eclipse.aether.internal.impl.DefaultDeployer.deploy (DefaultDeployer.java:223)
    at org.eclipse.aether.internal.impl.DefaultRepositorySystem.deploy (DefaultRepositorySystem.java:384)
    at org.apache.maven.artifact.deployer.DefaultArtifactDeployer.deploy (DefaultArtifactDeployer.java:142)
    at org.apache.maven.plugin.deploy.AbstractDeployMojo.deploy (AbstractDeployMojo.java:167)
    at org.apache.maven.plugin.deploy.DeployMojo.execute (DeployMojo.java:157)
    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 (LifecycleSt

pup*_*eno 7

好吧，我发现了问题：这两个插件非常陈旧、过时和废弃。

<extension>
   <groupId>com.allogy.maven.wagon</groupId>
   <artifactId>maven-s3-wagon</artifactId>
   <version>1.2.0</version>
</extension>
Run Code Online (Sandbox Code Playgroud)

似乎有效，但我不确定这是否是最好的使用方法。

  • 我冒昧地将您的答案中的版本号提高到 1.2 - 截至 2020 年，这解决了我对 J9+ 的依赖问题，而无需诉诸“带有扩展的插件”方法。 (2认同)

归档时间：

查看次数：

2086 次

最近记录：

5 年，7 月 前
相关归档
无法找到XML模式命名空间的Spring NamespaceHandler http://www.springframework.org/schema/data/jpa 14
为什么来自s3的dask read_csv会保留这么多内存？ 14
Maven中存储库和依赖项之间有什么区别？ 10
AWS S3 中的对象和对象 ACL 有什么区别？ 9
如何防止未经授权的用户保护资源的Amazon S3存储桶Web URL 7
List或Set <String>的JPA映射 6
如何在 Python 中使用线程来并行化 AWS S3 API 调用？ 5
将数据从 CSV 文件导入 Amazon Web Services RDS MySQL 数据库 2
elasticsearch 5.0 s3存储库注册错误 1
S3存储桶不驻留在VPC中？ 0
难疑归档
正则表达式匹配不包含单词的行？ 4121
如何有效地配对袜子？ 3850
提高SQLite的每秒INSERT性能？ 2880
我怎么知道通过jQuery选择了哪个单选按钮？ 2583
为什么我的JavaScript在所请求的资源上出现"No'Access-Control-Allow-Origin'标头"错误,当Postman没有？ 2320
确定对象的类型？ 1700
如何迭代Pandas中的DataFrame中的行？ 1551
检查Bash shell脚本中是否存在输入参数 1223
在Python中创建一个包含列表推导的字典 1216
用于Python的IDE是什么？ 1028