# 设置读写分离路由模式 - ModifyGaussMySqlProxyRouteMode #### 功能介绍 设置读写分离路由模式。 #### 调用方法 请参见[如何调用API](https://support.huaweicloud.com/api-taurusdb/taurusdb_03_0000.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-taurusdb/taurusdb_06_0000.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 | |:---|:---|:---|:---|:---|:---| | gaussdbformysql:proxy:modifyRouteMode | Write | instance \* | - g:EnterpriseProjectId - g:ResourceTag/\ | gaussdb:proxy:modifyRouteMode | - | #### URI PUT /v3/{project_id}/instances/{instance_id}/proxy/{proxy_id}/route-mode 表1路径参数 | 参数 | 是否必选 | 参数类型 | 描述 | |:---|:---|:---|:---| | project_id | 是 | String | **参数解释**： 租户在某一Region下的project ID。 获取方法请参见[获取项目ID](https://support.huaweicloud.com/api-taurusdb/taurusdb_10_0004.html)。 **约束限制**： 不涉及。 **取值范围**： 只能由英文字母、数字组成，且长度为32个字符。 **默认取值**： 不涉及。 | | instance_id | 是 | String | **参数解释**： 实例ID，此参数是实例的唯一标识。 **约束限制**： 不涉及。 **取值范围**： 只能由英文字母、数字组成，后缀为in07，长度为36个字符。 **默认取值**： 不涉及。 | | proxy_id | 是 | String | **参数解释**： 数据库代理ID，此参数是代理的唯一标识。 **约束限制**： 必须为实例关联的数据库代理ID。 **取值范围**： 只能由英文字母、数字组成，后缀为po01，长度为36个字符。 **默认取值**： 不涉及。 | #### 请求参数 表2请求Header参数 | 参数 | 是否必选 | 参数类型 | 描述 | |:---|:---|:---|:---| | X-Auth-Token | 是 | String | **参数解释**： 用户Token。 通过调用IAM服务[获取用户Token](https://support.huaweicloud.com/api-iam/iam_30_0001.html)接口获取。 请求响应成功后在响应消息头中包含的"X-Subject-Token"的值即为Token值。 **约束限制**： 不涉及。 **取值范围**： 不涉及。 **默认取值**： 不涉及。 | | X-Language | 否 | String | **参数解释**： 请求语言类型。 **约束限制**： 不涉及。 **取值范围**： - en-us：英文。 - zh-cn：中文。 **默认取值**： en-us。 | 表3请求Body参数 | 参数 | 是否必选 | 参数类型 | 描述 | |:---|:---|:---|:---| | route_mode | 是 | Integer | **参数解释**： 数据库代理路由模式。 **约束限制**： 不涉及。 **取值范围**： - 0：表示权重负载模式。 - 1：表示负载均衡模式（数据库主节点不接受读请求）。 - 2：表示负载均衡模式（数据库主节点接受读请求）。 **默认取值**： 不涉及。 | | master_weight | 否 | Integer | **参数解释**： 主节点权重。 **约束限制**： 取值范围与路由模式有关。 **取值范围**： - 如果路由模式为0，取值为0\~1000。 - 如果路由模式为1，取值为0。 - 如果路由模式为2，取值为1。 **默认取值**： 不涉及。 | | readonly_nodes | 否 | Array of [ModifyProxyRouteWeightReadonlyNode] objects | **参数解释**： 只读节点权重配置信息。 **约束限制**： 不涉及。 | | new_node_auto_add_status | 否 | String | **参数解释**： 是否开启新增节点自动加入该Proxy。 **约束限制**： 不涉及。 **取值范围**： - ON：开启。 - OFF：关闭。 **默认取值**： OFF。 | | new_node_weight | 否 | Integer | **参数解释**： 新增节点的读权重。 **约束限制**： 取值范围与路由模式和新增节点是否自动加入有关。 **取值范围**： - 如果路由模式为0，新增节点自动加入为ON，取值为0\~1000。 - 如果路由模式不为0或新增节点自动加入为OFF，则可不输入读权重。 **默认取值**： 不涉及。 | 表4ModifyProxyRouteWeightReadonlyNode | 参数 | 是否必选 | 参数类型 | 描述 | |:---|:---|:---|:---| | id | 是 | String | **参数解释**： 只读节点ID。 **约束限制**： 不涉及。 **取值范围**： 实例的只读节点ID。 **默认取值**： 不涉及。 | | weight | 是 | Integer | **参数解释**： 只读节点权重。 **约束限制**： 与路由模式有关。 **取值范围**： - 如果路由模式为0，取值为0\~1000； - 如果路由模式为1或2，取值为0或1。 **默认取值**： 不涉及。 | #### 响应参数 **状态码：200** 表5响应Body参数 | 参数 | 参数类型 | 描述 | |:---|:---|:---| | job_id | String | **参数解释**： 任务ID。 **取值范围**： 不涉及。 | **状态码：400** 表6响应Body参数 | 参数 | 参数类型 | 描述 | |:---|:---|:---| | error_code | String | 错误码。 | | error_msg | String | 错误消息。 | **状态码：500** 表7响应Body参数 | 参数 | 参数类型 | 描述 | |:---|:---|:---| | error_code | String | 错误码。 | | error_msg | String | 错误消息。 | #### 请求示例 - 修改路由模式为权重负载模式。 ``` PUT https://{endpoint}/v3/619d3e78f61b4be68bc5aa0b59edcf7b/instances/e73893ef73754465a8bd2e0857bbf13ein07/proxy/e87088f0b6a345e79db19d57c41fde15po01/route-mode { "route_mode" : 0, "master_weight" : 100, "readonly_nodes" : [ { "id" : "d23535333138462880bfa1838fdfced2no07", "weight" : 200 } ] } ``` - 修改路由模式为负载均衡模式（数据库主节点不接受读请求）。 ``` PUT https://{endpoint}/v3/619d3e78f61b4be68bc5aa0b59edcf7b/instances/e73893ef73754465a8bd2e0857bbf13ein07/proxy/e87088f0b6a345e79db19d57c41fde15po01/route-mode { "route_mode" : 1, "master_weight" : 0, "readonly_nodes" : [ { "id" : "d23535333138462880bfa1838fdfced2no07", "weight" : 1 } ] } ``` - 修改路由模式为负载均衡模式（数据库主节点接受读请求）。 ``` PUT https://{endpoint}/v3/619d3e78f61b4be68bc5aa0b59edcf7b/instances/e73893ef73754465a8bd2e0857bbf13ein07/proxy/e87088f0b6a345e79db19d57c41fde15po01/route-mode { "route_mode" : 2, "master_weight" : 1, "readonly_nodes" : [ { "id" : "d23535333138462880bfa1838fdfced2no07", "weight" : 0 } ] } ``` #### 响应示例 **状态码：200** ``` { "job_id" : "04efe8e2-9255-44ae-a98b-d87c11411890" } ``` #### SDK代码示例 SDK代码示例如下。 - [Java] - 修改路由模式为权重负载模式。 ``` 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.gaussdb.v3.region.GaussDBRegion; import com.huaweicloud.sdk.gaussdb.v3.*; import com.huaweicloud.sdk.gaussdb.v3.model.*; import java.util.List; import java.util.ArrayList; public class ModifyGaussMySqlProxyRouteModeSolution { 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); GaussDBClient client = GaussDBClient.newBuilder() .withCredential(auth) .withRegion(GaussDBRegion.valueOf("")) .build(); ModifyGaussMySqlProxyRouteModeRequest request = new ModifyGaussMySqlProxyRouteModeRequest(); request.withInstanceId("{instance_id}"); request.withProxyId("{proxy_id}"); ModifyGaussMySqlProxyRouteModeRequestBody body = new ModifyGaussMySqlProxyRouteModeRequestBody(); List listbodyReadonlyNodes = new ArrayList<>(); listbodyReadonlyNodes.add( new ModifyProxyRouteWeightReadonlyNode() .withId("d23535333138462880bfa1838fdfced2no07") .withWeight(200) ); body.withReadonlyNodes(listbodyReadonlyNodes); body.withMasterWeight(100); body.withRouteMode(0); request.withBody(body); try { ModifyGaussMySqlProxyRouteModeResponse response = client.modifyGaussMySqlProxyRouteMode(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()); } } } ``` - 修改路由模式为负载均衡模式（数据库主节点不接受读请求）。 ``` 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.gaussdb.v3.region.GaussDBRegion; import com.huaweicloud.sdk.gaussdb.v3.*; import com.huaweicloud.sdk.gaussdb.v3.model.*; import java.util.List; import java.util.ArrayList; public class ModifyGaussMySqlProxyRouteModeSolution { 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); GaussDBClient client = GaussDBClient.newBuilder() .withCredential(auth) .withRegion(GaussDBRegion.valueOf("")) .build(); ModifyGaussMySqlProxyRouteModeRequest request = new ModifyGaussMySqlProxyRouteModeRequest(); request.withInstanceId("{instance_id}"); request.withProxyId("{proxy_id}"); ModifyGaussMySqlProxyRouteModeRequestBody body = new ModifyGaussMySqlProxyRouteModeRequestBody(); List listbodyReadonlyNodes = new ArrayList<>(); listbodyReadonlyNodes.add( new ModifyProxyRouteWeightReadonlyNode() .withId("d23535333138462880bfa1838fdfced2no07") .withWeight(1) ); body.withReadonlyNodes(listbodyReadonlyNodes); body.withMasterWeight(0); body.withRouteMode(1); request.withBody(body); try { ModifyGaussMySqlProxyRouteModeResponse response = client.modifyGaussMySqlProxyRouteMode(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()); } } } ``` - 修改路由模式为负载均衡模式（数据库主节点接受读请求）。 ``` 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.gaussdb.v3.region.GaussDBRegion; import com.huaweicloud.sdk.gaussdb.v3.*; import com.huaweicloud.sdk.gaussdb.v3.model.*; import java.util.List; import java.util.ArrayList; public class ModifyGaussMySqlProxyRouteModeSolution { 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); GaussDBClient client = GaussDBClient.newBuilder() .withCredential(auth) .withRegion(GaussDBRegion.valueOf("")) .build(); ModifyGaussMySqlProxyRouteModeRequest request = new ModifyGaussMySqlProxyRouteModeRequest(); request.withInstanceId("{instance_id}"); request.withProxyId("{proxy_id}"); ModifyGaussMySqlProxyRouteModeRequestBody body = new ModifyGaussMySqlProxyRouteModeRequestBody(); List listbodyReadonlyNodes = new ArrayList<>(); listbodyReadonlyNodes.add( new ModifyProxyRouteWeightReadonlyNode() .withId("d23535333138462880bfa1838fdfced2no07") .withWeight(0) ); body.withReadonlyNodes(listbodyReadonlyNodes); body.withMasterWeight(1); body.withRouteMode(2); request.withBody(body); try { ModifyGaussMySqlProxyRouteModeResponse response = client.modifyGaussMySqlProxyRouteMode(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] - 修改路由模式为权重负载模式。 ``` # coding: utf-8 import os from huaweicloudsdkcore.auth.credentials import BasicCredentials from huaweicloudsdkgaussdb.v3.region.gaussdb_region import GaussDBRegion from huaweicloudsdkcore.exceptions import exceptions from huaweicloudsdkgaussdb.v3 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 = GaussDBClient.new_builder() \ .with_credentials(credentials) \ .with_region(GaussDBRegion.value_of("")) \ .build() try: request = ModifyGaussMySqlProxyRouteModeRequest() request.instance_id = "{instance_id}" request.proxy_id = "{proxy_id}" listReadonlyNodesbody = [ ModifyProxyRouteWeightReadonlyNode( id="d23535333138462880bfa1838fdfced2no07", weight=200 ) ] request.body = ModifyGaussMySqlProxyRouteModeRequestBody( readonly_nodes=listReadonlyNodesbody, master_weight=100, route_mode=0 ) response = client.modify_gauss_my_sql_proxy_route_mode(request) print(response) except exceptions.ClientRequestException as e: print(e.status_code) print(e.request_id) print(e.error_code) print(e.error_msg) ``` - 修改路由模式为负载均衡模式（数据库主节点不接受读请求）。 ``` # coding: utf-8 import os from huaweicloudsdkcore.auth.credentials import BasicCredentials from huaweicloudsdkgaussdb.v3.region.gaussdb_region import GaussDBRegion from huaweicloudsdkcore.exceptions import exceptions from huaweicloudsdkgaussdb.v3 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 = GaussDBClient.new_builder() \ .with_credentials(credentials) \ .with_region(GaussDBRegion.value_of("")) \ .build() try: request = ModifyGaussMySqlProxyRouteModeRequest() request.instance_id = "{instance_id}" request.proxy_id = "{proxy_id}" listReadonlyNodesbody = [ ModifyProxyRouteWeightReadonlyNode( id="d23535333138462880bfa1838fdfced2no07", weight=1 ) ] request.body = ModifyGaussMySqlProxyRouteModeRequestBody( readonly_nodes=listReadonlyNodesbody, master_weight=0, route_mode=1 ) response = client.modify_gauss_my_sql_proxy_route_mode(request) print(response) except exceptions.ClientRequestException as e: print(e.status_code) print(e.request_id) print(e.error_code) print(e.error_msg) ``` - 修改路由模式为负载均衡模式（数据库主节点接受读请求）。 ``` # coding: utf-8 import os from huaweicloudsdkcore.auth.credentials import BasicCredentials from huaweicloudsdkgaussdb.v3.region.gaussdb_region import GaussDBRegion from huaweicloudsdkcore.exceptions import exceptions from huaweicloudsdkgaussdb.v3 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 = GaussDBClient.new_builder() \ .with_credentials(credentials) \ .with_region(GaussDBRegion.value_of("")) \ .build() try: request = ModifyGaussMySqlProxyRouteModeRequest() request.instance_id = "{instance_id}" request.proxy_id = "{proxy_id}" listReadonlyNodesbody = [ ModifyProxyRouteWeightReadonlyNode( id="d23535333138462880bfa1838fdfced2no07", weight=0 ) ] request.body = ModifyGaussMySqlProxyRouteModeRequestBody( readonly_nodes=listReadonlyNodesbody, master_weight=1, route_mode=2 ) response = client.modify_gauss_my_sql_proxy_route_mode(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] - 修改路由模式为权重负载模式。 ``` package main import ( "fmt" "github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic" gaussdb "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/gaussdb/v3" "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/gaussdb/v3/model" region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/gaussdb/v3/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 := gaussdb.GaussDBClientBuilder(). WithRegion(region.ValueOf("")). WithCredential(auth). SafeBuild() if err != nil { fmt.Println(err) return } client := gaussdb.NewGaussDBClient(hcClient) request := &model.ModifyGaussMySqlProxyRouteModeRequest{} request.InstanceId = "{instance_id}" request.ProxyId = "{proxy_id}" var listReadonlyNodesbody = []model.ModifyProxyRouteWeightReadonlyNode{ { Id: "d23535333138462880bfa1838fdfced2no07", Weight: int32(200), }, } masterWeightModifyGaussMySqlProxyRouteModeRequestBody:= int32(100) request.Body = &model.ModifyGaussMySqlProxyRouteModeRequestBody{ ReadonlyNodes: &listReadonlyNodesbody, MasterWeight: &masterWeightModifyGaussMySqlProxyRouteModeRequestBody, RouteMode: int32(0), } response, err := client.ModifyGaussMySqlProxyRouteMode(request) if err == nil { fmt.Printf("%+v\n", response) } else { fmt.Println(err) } } ``` - 修改路由模式为负载均衡模式（数据库主节点不接受读请求）。 ``` package main import ( "fmt" "github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic" gaussdb "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/gaussdb/v3" "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/gaussdb/v3/model" region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/gaussdb/v3/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 := gaussdb.GaussDBClientBuilder(). WithRegion(region.ValueOf("")). WithCredential(auth). SafeBuild() if err != nil { fmt.Println(err) return } client := gaussdb.NewGaussDBClient(hcClient) request := &model.ModifyGaussMySqlProxyRouteModeRequest{} request.InstanceId = "{instance_id}" request.ProxyId = "{proxy_id}" var listReadonlyNodesbody = []model.ModifyProxyRouteWeightReadonlyNode{ { Id: "d23535333138462880bfa1838fdfced2no07", Weight: int32(1), }, } masterWeightModifyGaussMySqlProxyRouteModeRequestBody:= int32(0) request.Body = &model.ModifyGaussMySqlProxyRouteModeRequestBody{ ReadonlyNodes: &listReadonlyNodesbody, MasterWeight: &masterWeightModifyGaussMySqlProxyRouteModeRequestBody, RouteMode: int32(1), } response, err := client.ModifyGaussMySqlProxyRouteMode(request) if err == nil { fmt.Printf("%+v\n", response) } else { fmt.Println(err) } } ``` - 修改路由模式为负载均衡模式（数据库主节点接受读请求）。 ``` package main import ( "fmt" "github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic" gaussdb "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/gaussdb/v3" "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/gaussdb/v3/model" region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/gaussdb/v3/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 := gaussdb.GaussDBClientBuilder(). WithRegion(region.ValueOf("")). WithCredential(auth). SafeBuild() if err != nil { fmt.Println(err) return } client := gaussdb.NewGaussDBClient(hcClient) request := &model.ModifyGaussMySqlProxyRouteModeRequest{} request.InstanceId = "{instance_id}" request.ProxyId = "{proxy_id}" var listReadonlyNodesbody = []model.ModifyProxyRouteWeightReadonlyNode{ { Id: "d23535333138462880bfa1838fdfced2no07", Weight: int32(0), }, } masterWeightModifyGaussMySqlProxyRouteModeRequestBody:= int32(1) request.Body = &model.ModifyGaussMySqlProxyRouteModeRequestBody{ ReadonlyNodes: &listReadonlyNodesbody, MasterWeight: &masterWeightModifyGaussMySqlProxyRouteModeRequestBody, RouteMode: int32(2), } response, err := client.ModifyGaussMySqlProxyRouteMode(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/GaussDB/sdk?api=ModifyGaussMySqlProxyRouteMode)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 | Success. | | 400 | Client error. | | 500 | Server error. | #### 错误码 请参见[错误码](https://support.huaweicloud.com/api-taurusdb/ErrorCode.html)。