文档 AWS SDK 示例 GitHub 存储库中还有更多 [S AWS DK 示例](https://github.com/awsdocs/aws-doc-sdk-examples)。
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# `DeleteLoadBalancer`与 AWS SDK 或 CLI 配合使用
以下代码示例演示如何使用 `DeleteLoadBalancer`。
操作示例是大型程序的代码摘录，必须在上下文中运行。在以下代码示例中，您可以查看此操作的上下文：
+ [构建和管理弹性服务](elastic-load-balancing-v2_example_cross_ResilientService_section.md)
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#### [ .NET ]
**适用于 .NET 的 SDK**
还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv3/cross-service/ResilientService/ElasticLoadBalancerActions#code-examples)中查找完整示例，了解如何进行设置和运行。
```
///
/// Delete a load balancer by its specified name.
///
/// The name of the load balancer to delete.
/// Async task.
public async Task DeleteLoadBalancerByName(string name)
{
try
{
var describeLoadBalancerResponse =
await _amazonElasticLoadBalancingV2.DescribeLoadBalancersAsync(
new DescribeLoadBalancersRequest()
{
Names = new List() { name }
});
var lbArn = describeLoadBalancerResponse.LoadBalancers[0].LoadBalancerArn;
await _amazonElasticLoadBalancingV2.DeleteLoadBalancerAsync(
new DeleteLoadBalancerRequest()
{
LoadBalancerArn = lbArn
}
);
}
catch (LoadBalancerNotFoundException)
{
Console.WriteLine($"Load balancer {name} not found.");
}
}
```
+ 有关 API 的详细信息，请参阅 *适用于 .NET 的 AWS SDK API 参考[DeleteLoadBalancer](https://docs.aws.amazon.com/goto/DotNetSDKV3/elasticloadbalancingv2-2015-12-01/DeleteLoadBalancer)*中的。
------
#### [ CLI ]
**AWS CLI**
**删除负载均衡器**
以下 `delete-load-balancer` 示例将删除指定的负载均衡器。
```
aws elbv2 delete-load-balancer \
--load-balancer-arn arn:aws:elasticloadbalancing:us-west-2:123456789012:loadbalancer/app/my-load-balancer/50dc6c495c0c9188
```
+ 有关 API 的详细信息，请参阅*AWS CLI 命令参考[DeleteLoadBalancer](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/elbv2/delete-load-balancer.html)*中的。
------
#### [ Java ]
**适用于 Java 的 SDK 2.x**
还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/usecases/resilient_service#code-examples)中查找完整示例，了解如何进行设置和运行。
```
// Deletes a load balancer.
public void deleteLoadBalancer(String lbName) {
try {
// Use a waiter to delete the Load Balancer.
DescribeLoadBalancersResponse res = getLoadBalancerClient()
.describeLoadBalancers(describe -> describe.names(lbName));
ElasticLoadBalancingV2Waiter loadBalancerWaiter = getLoadBalancerClient().waiter();
DescribeLoadBalancersRequest request = DescribeLoadBalancersRequest.builder()
.loadBalancerArns(res.loadBalancers().get(0).loadBalancerArn())
.build();
getLoadBalancerClient().deleteLoadBalancer(
builder -> builder.loadBalancerArn(res.loadBalancers().get(0).loadBalancerArn()));
WaiterResponse waiterResponse = loadBalancerWaiter
.waitUntilLoadBalancersDeleted(request);
waiterResponse.matched().response().ifPresent(System.out::println);
} catch (ElasticLoadBalancingV2Exception e) {
System.err.println(e.awsErrorDetails().errorMessage());
}
System.out.println(lbName + " was deleted.");
}
```
+ 有关 API 的详细信息，请参阅 *AWS SDK for Java 2.x API 参考[DeleteLoadBalancer](https://docs.aws.amazon.com/goto/SdkForJavaV2/elasticloadbalancingv2-2015-12-01/DeleteLoadBalancer)*中的。
------
#### [ JavaScript ]
**适用于 JavaScript (v3) 的软件开发工具包**
还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascriptv3/example_code/cross-services/wkflw-resilient-service#code-examples)中查找完整示例，了解如何进行设置和运行。
```
const client = new ElasticLoadBalancingV2Client({});
const loadBalancer = await findLoadBalancer(NAMES.loadBalancerName);
await client.send(
new DeleteLoadBalancerCommand({
LoadBalancerArn: loadBalancer.LoadBalancerArn,
}),
);
await retry({ intervalInMs: 1000, maxRetries: 60 }, async () => {
const lb = await findLoadBalancer(NAMES.loadBalancerName);
if (lb) {
throw new Error("Load balancer still exists.");
}
});
```
+ 有关 API 的详细信息，请参阅 *适用于 JavaScript 的 AWS SDK API 参考[DeleteLoadBalancer](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/client/elastic-load-balancing-v2/command/DeleteLoadBalancerCommand)*中的。
------
#### [ PowerShell ]
**适用于 PowerShell V4 的工具**
**示例 1：此示例删除指定的负载均衡器。**
```
Remove-ELB2LoadBalancer -LoadBalancerArn 'arn:aws:elasticloadbalancing:us-east-1:123456789012:loadbalancer/app/test-alb/3651b4394dd9a24f'
```
**输出**：
```
Confirm
Are you sure you want to perform this action?
Performing the operation "Remove-ELB2LoadBalancer (DeleteLoadBalancer)" on target "arn:aws:elasticloadbalancing:us-east-1:123456789012:loadbalancer/app/test-alb/3651b4394dd9a24f".
[Y] Yes [A] Yes to All [N] No [L] No to All [S] Suspend [?] Help (default is "Y"): y
```
+ 有关 API 的详细信息，请参阅 *AWS Tools for PowerShell Cmdlet 参考 (V* 4) [DeleteLoadBalancer](https://docs.aws.amazon.com/powershell/v4/reference)中的。
**适用于 PowerShell V5 的工具**
**示例 1：此示例删除指定的负载均衡器。**
```
Remove-ELB2LoadBalancer -LoadBalancerArn 'arn:aws:elasticloadbalancing:us-east-1:123456789012:loadbalancer/app/test-alb/3651b4394dd9a24f'
```
**输出**：
```
Confirm
Are you sure you want to perform this action?
Performing the operation "Remove-ELB2LoadBalancer (DeleteLoadBalancer)" on target "arn:aws:elasticloadbalancing:us-east-1:123456789012:loadbalancer/app/test-alb/3651b4394dd9a24f".
[Y] Yes [A] Yes to All [N] No [L] No to All [S] Suspend [?] Help (default is "Y"): y
```
+ 有关 API 的详细信息，请参阅 *AWS Tools for PowerShell Cmdlet 参考 (V* 5) [DeleteLoadBalancer](https://docs.aws.amazon.com/powershell/v5/reference)中的。
------
#### [ Python ]
**适用于 Python 的 SDK（Boto3）**
还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/elastic-load-balancing#code-examples)中查找完整示例，了解如何进行设置和运行。
```
class ElasticLoadBalancerWrapper:
"""Encapsulates Elastic Load Balancing (ELB) actions."""
def __init__(self, elb_client: boto3.client):
"""
Initializes the LoadBalancer class with the necessary parameters.
"""
self.elb_client = elb_client
def delete_load_balancer(self, load_balancer_name) -> None:
"""
Deletes a load balancer.
:param load_balancer_name: The name of the load balancer to delete.
"""
try:
response = self.elb_client.describe_load_balancers(
Names=[load_balancer_name]
)
lb_arn = response["LoadBalancers"][0]["LoadBalancerArn"]
self.elb_client.delete_load_balancer(LoadBalancerArn=lb_arn)
log.info("Deleted load balancer %s.", load_balancer_name)
waiter = self.elb_client.get_waiter("load_balancers_deleted")
log.info("Waiting for load balancer to be deleted...")
waiter.wait(Names=[load_balancer_name])
except ClientError as err:
error_code = err.response["Error"]["Code"]
log.error(
f"Couldn't delete load balancer '{load_balancer_name}'. Error code: {error_code}, Message: {err.response['Error']['Message']}"
)
if error_code == "LoadBalancerNotFoundException":
log.error(
f"The load balancer '{load_balancer_name}' does not exist. "
"Please check the name and try again."
)
log.error(f"Full error:\n\t{err}")
```
+ 有关 API 的详细信息，请参阅适用[DeleteLoadBalancer](https://docs.aws.amazon.com/goto/boto3/elasticloadbalancingv2-2015-12-01/DeleteLoadBalancer)于 *Python 的AWS SDK (Boto3) API 参考*。
------