
# 创建Vhost - CreateVhost
#### 功能介绍
创建Vhost。
#### 调用方法
请参见[如何调用API](https://support.huaweicloud.com/api-rabbitmq/rabbitmq-api-190611003.html)。
#### 授权信息
账号具备所有API的调用权限，如果使用账号下的IAM用户调用当前API，该IAM用户需具备调用API所需的权限。
- 如果使用角色与策略授权，具体权限要求请参见[权限和授权项](https://support.huaweicloud.com/api-rabbitmq/api-grant-policy.html)。
- 如果使用身份策略授权，需具备如下身份策略权限。
  
  | 授权项              | 访问级别  | 资源类型（\*为必须） | 条件键                                                                                                                                                                                                                                                                                                                 | 别名                  | 依赖的授权项 |
  |:---|:---|:---|:---|:---|:---|
  | dms:vhost:create | Write | rabbitmq \* | - g:ResourceTag/\<tag-key\>   - g:EnterpriseProjectId    | dms:instance:modify | -      |
  | dms:vhost:create | Write | vhost \*    | -                                                                                                                                                                                                                                                                                                                   | dms:instance:modify | -      |
     
  
 
#### URI
PUT /v2/rabbitmq/{project_id}/instances/{instance_id}/vhosts
表1路径参数 
| 参数          | 是否必选 | 参数类型   | 描述                                                                                              |
|:---|:---|:---|:---|
| project_id  | 是    | String | 项目ID，获取方式请参见[获取项目ID](https://support.huaweicloud.com/api-rabbitmq/rabbitmq-api-190611012.html)。 |
| instance_id | 是    | String | 实例ID。                                                                                           |
   
#### 请求参数
表2请求Body参数 
| 参数   | 是否必选 | 参数类型   | 描述                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
|:---|:---|:---|:---|
| name | 是    | String | **参数解释**： Vhost名称。 **约束限制**： - 只能由英文字母、数字、点、百分号、竖线、中划线、下划线、斜杠组成。   - 3.x.x版本：长度范围2\~128个字符。   - AMQP-0-9-1版本：长度范围为2\~32个字符。在计算AMQP-0-9-1版本实例的Vhost名称长度时，每个特殊字符（点、百分号、竖线和斜杠）算三个字符长度。    **取值范围**： 不涉及。 **默认取值**： 不涉及。 |
   
#### 响应参数
**状态码：200**
创建Vhost成功。
无
#### 请求示例
创建一个名为"vhost-demo"的Vhost。
```
PUT https://{endpoint}/v2/rabbitmq/{project_id}/instances/{instance_id}/vhosts
{
  "name" : "vhost-demo"
}
```
#### 响应示例
无
#### SDK代码示例
SDK代码示例如下。
- [Java]
  创建一个名为"vhost-demo"的Vhost。
  ```
  package com.huaweicloud.sdk.test;
  import com.huaweicloud.sdk.core.auth.ICredential;
  import com.huaweicloud.sdk.core.auth.BasicCredentials;
  import com.huaweicloud.sdk.core.exception.ConnectionException;
  import com.huaweicloud.sdk.core.exception.RequestTimeoutException;
  import com.huaweicloud.sdk.core.exception.ServiceResponseException;
  import com.huaweicloud.sdk.rabbitmq.v2.region.RabbitMQRegion;
  import com.huaweicloud.sdk.rabbitmq.v2.*;
  import com.huaweicloud.sdk.rabbitmq.v2.model.*;
  public class CreateVhostSolution {
      public static void main(String[] args) {
          // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
          // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
          String ak = System.getenv("CLOUD_SDK_AK");
          String sk = System.getenv("CLOUD_SDK_SK");
          String projectId = "{project_id}";
          ICredential auth = new BasicCredentials()
                  .withProjectId(projectId)
                  .withAk(ak)
                  .withSk(sk);
          RabbitMQClient client = RabbitMQClient.newBuilder()
                  .withCredential(auth)
                  .withRegion(RabbitMQRegion.valueOf("<YOUR REGION>"))
                  .build();
          CreateVhostRequest request = new CreateVhostRequest();
          request.withInstanceId("{instance_id}");
          CreateVhostBody body = new CreateVhostBody();
          body.withName("vhost-demo");
          request.withBody(body);
          try {
              CreateVhostResponse response = client.createVhost(request);
              System.out.println(response.toString());
          } catch (ConnectionException e) {
              e.printStackTrace();
          } catch (RequestTimeoutException e) {
              e.printStackTrace();
          } catch (ServiceResponseException e) {
              e.printStackTrace();
              System.out.println(e.getHttpStatusCode());
              System.out.println(e.getRequestId());
              System.out.println(e.getErrorCode());
              System.out.println(e.getErrorMsg());
          }
      }
  }
  ```
- [Python]
  创建一个名为"vhost-demo"的Vhost。
  ```
  # coding: utf-8
  import os
  from huaweicloudsdkcore.auth.credentials import BasicCredentials
  from huaweicloudsdkrabbitmq.v2.region.rabbitmq_region import RabbitMQRegion
  from huaweicloudsdkcore.exceptions import exceptions
  from huaweicloudsdkrabbitmq.v2 import *
  if __name__ == "__main__":
      # The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
      # In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
      ak = os.environ["CLOUD_SDK_AK"]
      sk = os.environ["CLOUD_SDK_SK"]
      projectId = "{project_id}"
      credentials = BasicCredentials(ak, sk, projectId)
      client = RabbitMQClient.new_builder() \
          .with_credentials(credentials) \
          .with_region(RabbitMQRegion.value_of("<YOUR REGION>")) \
          .build()
      try:
          request = CreateVhostRequest()
          request.instance_id = "{instance_id}"
          request.body = CreateVhostBody(
              name="vhost-demo"
          )
          response = client.create_vhost(request)
          print(response)
      except exceptions.ClientRequestException as e:
          print(e.status_code)
          print(e.request_id)
          print(e.error_code)
          print(e.error_msg)
  ```
- [Go]
  创建一个名为"vhost-demo"的Vhost。
  ```
  package main
  import (
  "fmt"
  "github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic"
      rabbitmq "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/rabbitmq/v2"
  "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/rabbitmq/v2/model"
      region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/rabbitmq/v2/region"
  )
  func main() {
      // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
      // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
      ak := os.Getenv("CLOUD_SDK_AK")
      sk := os.Getenv("CLOUD_SDK_SK")
      projectId := "{project_id}"
      auth, err := basic.NewCredentialsBuilder().
          WithAk(ak).
          WithSk(sk).
          WithProjectId(projectId).
          SafeBuild()
      if err != nil {
          fmt.Println(err)
          return
      }
      hcClient, err := rabbitmq.RabbitMQClientBuilder().
           WithRegion(region.ValueOf("<YOUR REGION>")).
           WithCredential(auth).
           SafeBuild()
      if err != nil {
          fmt.Println(err)
          return
      }
      client := rabbitmq.NewRabbitMQClient(hcClient)
      request := &model.CreateVhostRequest{}
  request.InstanceId = "{instance_id}"
  request.Body = &model.CreateVhostBody{
  Name: "vhost-demo",
  }
  response, err := client.CreateVhost(request)
  if err == nil {
          fmt.Printf("%+v\n", response)
      } else {
          fmt.Println(err)
      }
  }
  ```
- [更多]
  更多编程语言的SDK代码示例，请参见[API Explorer](https://console.huaweicloud.com/apiexplorer/#/openapi/RabbitMQ/sdk?api=CreateVhost)的代码示例页签，可生成自动对应的SDK代码示例。
#### 状态码
| 状态码 | 描述         |
|:---|:---|
| 200 | 创建Vhost成功。 |
   
#### 错误码
请参见[错误码](https://support.huaweicloud.com/api-rabbitmq/ErrorCode.html)。
