本文属于机器翻译版本。若本译文内容与英语原文存在差异，则一律以英文原文为准。

# DescribeApplication
<a name="API_DescribeApplication"></a>

返回有关特定 Apache Flink 托管服务应用程序的信息。

如果您想检索账户中所有应用程序的列表，请使用 [ListApplications](API_ListApplications.md) 操作。

## 请求语法
<a name="API_DescribeApplication_RequestSyntax"></a>

```
{
   "ApplicationName": "string",
   "IncludeAdditionalDetails": boolean
}
```

## 请求参数
<a name="API_DescribeApplication_RequestParameters"></a>

请求接受采用 JSON 格式的以下数据。

 ** [ApplicationName](#API_DescribeApplication_RequestSyntax) **   <a name="APIReference-DescribeApplication-request-ApplicationName"></a>
 应用程序的名称。  
类型：字符串  
长度限制：最小长度为 1。最大长度为 128。  
模式：`[a-zA-Z0-9_.-]+`  
是否必需：是

 ** [IncludeAdditionalDetails](#API_DescribeApplication_RequestSyntax) **   <a name="APIReference-DescribeApplication-request-IncludeAdditionalDetails"></a>
显示有关 Apache Flink 托管服务应用程序的详细信息，包括该应用程序的作业计划。  
类型：布尔值  
必需：否

## 响应语法
<a name="API_DescribeApplication_ResponseSyntax"></a>

```
{
   "ApplicationDetail": { 
      "ApplicationARN": "string",
      "ApplicationConfigurationDescription": { 
         "ApplicationCodeConfigurationDescription": { 
            "CodeContentDescription": { 
               "CodeMD5": "string",
               "CodeSize": number,
               "S3ApplicationCodeLocationDescription": { 
                  "BucketARN": "string",
                  "FileKey": "string",
                  "ObjectVersion": "string"
               },
               "TextContent": "string"
            },
            "CodeContentType": "string"
         },
         "ApplicationEncryptionConfigurationDescription": { 
            "KeyId": "string",
            "KeyType": "string"
         },
         "ApplicationSnapshotConfigurationDescription": { 
            "SnapshotsEnabled": boolean
         },
         "ApplicationSystemRollbackConfigurationDescription": { 
            "RollbackEnabled": boolean
         },
         "EnvironmentPropertyDescriptions": { 
            "PropertyGroupDescriptions": [ 
               { 
                  "PropertyGroupId": "string",
                  "PropertyMap": { 
                     "string" : "string" 
                  }
               }
            ]
         },
         "FlinkApplicationConfigurationDescription": { 
            "CheckpointConfigurationDescription": { 
               "CheckpointingEnabled": boolean,
               "CheckpointInterval": number,
               "ConfigurationType": "string",
               "MinPauseBetweenCheckpoints": number
            },
            "JobPlanDescription": "string",
            "MonitoringConfigurationDescription": { 
               "ConfigurationType": "string",
               "LogLevel": "string",
               "MetricsLevel": "string"
            },
            "ParallelismConfigurationDescription": { 
               "AutoScalingEnabled": boolean,
               "ConfigurationType": "string",
               "CurrentParallelism": number,
               "Parallelism": number,
               "ParallelismPerKPU": number
            }
         },
         "RunConfigurationDescription": { 
            "ApplicationRestoreConfigurationDescription": { 
               "ApplicationRestoreType": "string",
               "SnapshotName": "string"
            },
            "FlinkRunConfigurationDescription": { 
               "AllowNonRestoredState": boolean
            }
         },
         "SqlApplicationConfigurationDescription": { 
            "InputDescriptions": [ 
               { 
                  "InAppStreamNames": [ "string" ],
                  "InputId": "string",
                  "InputParallelism": { 
                     "Count": number
                  },
                  "InputProcessingConfigurationDescription": { 
                     "InputLambdaProcessorDescription": { 
                        "ResourceARN": "string",
                        "RoleARN": "string"
                     }
                  },
                  "InputSchema": { 
                     "RecordColumns": [ 
                        { 
                           "Mapping": "string",
                           "Name": "string",
                           "SqlType": "string"
                        }
                     ],
                     "RecordEncoding": "string",
                     "RecordFormat": { 
                        "MappingParameters": { 
                           "CSVMappingParameters": { 
                              "RecordColumnDelimiter": "string",
                              "RecordRowDelimiter": "string"
                           },
                           "JSONMappingParameters": { 
                              "RecordRowPath": "string"
                           }
                        },
                        "RecordFormatType": "string"
                     }
                  },
                  "InputStartingPositionConfiguration": { 
                     "InputStartingPosition": "string"
                  },
                  "KinesisFirehoseInputDescription": { 
                     "ResourceARN": "string",
                     "RoleARN": "string"
                  },
                  "KinesisStreamsInputDescription": { 
                     "ResourceARN": "string",
                     "RoleARN": "string"
                  },
                  "NamePrefix": "string"
               }
            ],
            "OutputDescriptions": [ 
               { 
                  "DestinationSchema": { 
                     "RecordFormatType": "string"
                  },
                  "KinesisFirehoseOutputDescription": { 
                     "ResourceARN": "string",
                     "RoleARN": "string"
                  },
                  "KinesisStreamsOutputDescription": { 
                     "ResourceARN": "string",
                     "RoleARN": "string"
                  },
                  "LambdaOutputDescription": { 
                     "ResourceARN": "string",
                     "RoleARN": "string"
                  },
                  "Name": "string",
                  "OutputId": "string"
               }
            ],
            "ReferenceDataSourceDescriptions": [ 
               { 
                  "ReferenceId": "string",
                  "ReferenceSchema": { 
                     "RecordColumns": [ 
                        { 
                           "Mapping": "string",
                           "Name": "string",
                           "SqlType": "string"
                        }
                     ],
                     "RecordEncoding": "string",
                     "RecordFormat": { 
                        "MappingParameters": { 
                           "CSVMappingParameters": { 
                              "RecordColumnDelimiter": "string",
                              "RecordRowDelimiter": "string"
                           },
                           "JSONMappingParameters": { 
                              "RecordRowPath": "string"
                           }
                        },
                        "RecordFormatType": "string"
                     }
                  },
                  "S3ReferenceDataSourceDescription": { 
                     "BucketARN": "string",
                     "FileKey": "string",
                     "ReferenceRoleARN": "string"
                  },
                  "TableName": "string"
               }
            ]
         },
         "VpcConfigurationDescriptions": [ 
            { 
               "SecurityGroupIds": [ "string" ],
               "SubnetIds": [ "string" ],
               "VpcConfigurationId": "string",
               "VpcId": "string"
            }
         ],
         "ZeppelinApplicationConfigurationDescription": { 
            "CatalogConfigurationDescription": { 
               "GlueDataCatalogConfigurationDescription": { 
                  "DatabaseARN": "string"
               }
            },
            "CustomArtifactsConfigurationDescription": [ 
               { 
                  "ArtifactType": "string",
                  "MavenReferenceDescription": { 
                     "ArtifactId": "string",
                     "GroupId": "string",
                     "Version": "string"
                  },
                  "S3ContentLocationDescription": { 
                     "BucketARN": "string",
                     "FileKey": "string",
                     "ObjectVersion": "string"
                  }
               }
            ],
            "DeployAsApplicationConfigurationDescription": { 
               "S3ContentLocationDescription": { 
                  "BasePath": "string",
                  "BucketARN": "string"
               }
            },
            "MonitoringConfigurationDescription": { 
               "LogLevel": "string"
            }
         }
      },
      "ApplicationDescription": "string",
      "ApplicationMaintenanceConfigurationDescription": { 
         "ApplicationMaintenanceWindowEndTime": "string",
         "ApplicationMaintenanceWindowStartTime": "string"
      },
      "ApplicationMode": "string",
      "ApplicationName": "string",
      "ApplicationStatus": "string",
      "ApplicationVersionCreateTimestamp": number,
      "ApplicationVersionId": number,
      "ApplicationVersionRolledBackFrom": number,
      "ApplicationVersionRolledBackTo": number,
      "ApplicationVersionUpdatedFrom": number,
      "CloudWatchLoggingOptionDescriptions": [ 
         { 
            "CloudWatchLoggingOptionId": "string",
            "LogStreamARN": "string",
            "RoleARN": "string"
         }
      ],
      "ConditionalToken": "string",
      "CreateTimestamp": number,
      "LastUpdateTimestamp": number,
      "RuntimeEnvironment": "string",
      "ServiceExecutionRole": "string"
   }
}
```

## 响应元素
<a name="API_DescribeApplication_ResponseElements"></a>

如果此操作成功，则该服务将会发送回 HTTP 200 响应。

服务以 JSON 格式返回以下数据。

 ** [ApplicationDetail](#API_DescribeApplication_ResponseSyntax) **   <a name="APIReference-DescribeApplication-response-ApplicationDetail"></a>
提供应用程序描述，如应用程序的 Amazon 资源名称 (ARN)、状态和最新版本。  
类型：[ApplicationDetail](API_ApplicationDetail.md) 对象

## 错误
<a name="API_DescribeApplication_Errors"></a>

 ** InvalidArgumentException **   
指定的输入参数值无效。  
HTTP 状态代码：400

 ** InvalidRequestException **   
操作的请求 JSON 无效。  
HTTP 状态代码：400

 ** ResourceNotFoundException **   
无法找到指定的应用程序。  
HTTP 状态代码：400

## 另请参阅
<a name="API_DescribeApplication_SeeAlso"></a>

有关以特定语言之一使用此 API 的更多信息 AWS SDKs，请参阅以下内容：
+  [AWS 命令行界面 V2](https://docs.aws.amazon.com/goto/cli2/kinesisanalyticsv2-2018-05-23/DescribeApplication) 
+  [AWS 适用于.NET 的 SDK V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/kinesisanalyticsv2-2018-05-23/DescribeApplication) 
+  [AWS 适用于 C\$1\$1 的 SDK](https://docs.aws.amazon.com/goto/SdkForCpp/kinesisanalyticsv2-2018-05-23/DescribeApplication) 
+  [AWS 适用于 Go v2 的 SDK](https://docs.aws.amazon.com/goto/SdkForGoV2/kinesisanalyticsv2-2018-05-23/DescribeApplication) 
+  [AWS 适用于 Java 的 SDK V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/kinesisanalyticsv2-2018-05-23/DescribeApplication) 
+  [AWS JavaScript V3 版 SDK](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/kinesisanalyticsv2-2018-05-23/DescribeApplication) 
+  [AWS 适用于 Kotlin 的 SDK](https://docs.aws.amazon.com/goto/SdkForKotlin/kinesisanalyticsv2-2018-05-23/DescribeApplication) 
+  [AWS 适用于 PHP 的 SDK V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/kinesisanalyticsv2-2018-05-23/DescribeApplication) 
+  [AWS Python 软件开发工具包](https://docs.aws.amazon.com/goto/boto3/kinesisanalyticsv2-2018-05-23/DescribeApplication) 
+  [AWS 适用于 Ruby V3 的 SDK](https://docs.aws.amazon.com/goto/SdkForRubyV3/kinesisanalyticsv2-2018-05-23/DescribeApplication)