diff --git a/README.md b/README.md
index 3096c990e7cae457bdee8d43d81a337b283401e4..6af6ce6b8c660e263aa6ed9ed0f3884a6ecd6ceb 100644
--- a/README.md
+++ b/README.md
@@ -33,9 +33,8 @@ RCP指的是远程通信平台（remote communication platform），RCP提供网
 │  |  ├──MultipartForm.ets                              // 多表单提交
 │  |  ├──RequestAndResponse.ets                         // 请求与响应拦截示例
 │  |  └──TracingPoint.ets                               // 捕获有关HTTP请求/响应流的详细信息
-|  └──utils.ets
-│     ├──Interceptors.ets                               // 请求与响应拦截
-│     └──NetworkStateSimulator.ets                      // 模拟慢速网络
+|  └──utils.ets                            
+│     └──Interceptors.ets                               // 请求与响应拦截
 └──entry/src/main/resources                             // 应用资源目录
 ``` 
 ## 相关权限
diff --git a/entry/src/main/ets/pages/BaseRequest.ets b/entry/src/main/ets/pages/BaseRequest.ets
index 1cebab2af91b152b3aab529bf0655f1565e3b902..a5461aeca43e75fee402c835fdd45fdda7fa73d6 100644
--- a/entry/src/main/ets/pages/BaseRequest.ets
+++ b/entry/src/main/ets/pages/BaseRequest.ets
@@ -18,6 +18,7 @@ import { rcp } from '@kit.RemoteCommunicationKit';
 import { url } from '@kit.ArkTS';
 import Logger from '../common/Logger';
 import { CommonConstants } from '../common/CommonConstants';
+import { hilog } from '@kit.PerformanceAnalysisKit';
 
 interface UserInfo {
   userName: string;
@@ -51,18 +52,23 @@ export struct BaseRequest {
       }
     };
     // Create the communication session object session
-    const session = rcp.createSession({ requestConfiguration: { security: securityConfig } });
-    // Define the request object rep
-    let req = new rcp.Request('http://example.com/fetch', 'PATCH', headers, modifiedContent);
-    // Initiate a request
-    session.fetch(req).then((response) => {
-      Logger.info(`Request succeeded, message is ${JSON.stringify(response)}`);
-    }).catch((err: BusinessError) => {
-      Logger.error(`err: err code is ${err.code}, err message is ${JSON.stringify(err)}`);
-    });
-    // [End session_fetch]
-    this.patchHeaders = JSON.stringify(req, null, 2);
-    AppStorage.setOrCreate('PatchHeaders', this.patchHeaders);
+    try {
+      const session = rcp.createSession({ requestConfiguration: { security: securityConfig } });
+      // Define the request object rep
+      let req = new rcp.Request('http://example.com/fetch', 'PATCH', headers, modifiedContent);
+      // Initiate a request
+      session.fetch(req).then((response) => {
+        Logger.info(`Request succeeded, message is ${JSON.stringify(response)}`);
+      }).catch((err: BusinessError) => {
+        Logger.error(`err: err code is ${err.code}, err message is ${JSON.stringify(err)}`);
+      });
+      // [End session_fetch]
+      this.patchHeaders = JSON.stringify(req, null, 2);
+      AppStorage.setOrCreate('PatchHeaders', this.patchHeaders);
+    } catch (error) {
+      let err = error as BusinessError;
+      hilog.error(0x0000, 'BaseRequest', `createSession failed. code=${err.code}, message=${err.message}`);
+    }
   }
 
   setBaseAddress() {
@@ -83,16 +89,21 @@ export struct BaseRequest {
       }
     };
     // Create the communication session object session and input sessionConfig
-    const session = rcp.createSession(sessionConfig);
+    try {
+      const session = rcp.createSession(sessionConfig);
+      let req = new rcp.Request('http://example.com', 'GET');
+      session.fetch(req).then((response) => {
+        Logger.info(`Request succeeded, message is ${JSON.stringify(response)}`);
+      }).catch((err: BusinessError) => {
+        Logger.error(`err: err code is ${err.code}, err message is ${JSON.stringify(err)}`);
+      });
+      this.baseAddress = sessionConfig.baseAddress;
+      AppStorage.setOrCreate('BaseAddress', this.baseAddress);
+    } catch (error) {
+      let err = error as BusinessError;
+      hilog.error(0x0000, 'BaseRequest', `createSession failed. code=${err.code}, message=${err.message}`);
+    }
     // [End session_config]
-    let req = new rcp.Request('http://example.com', 'GET');
-    session.fetch(req).then((response) => {
-      Logger.info(`Request succeeded, message is ${JSON.stringify(response)}`);
-    }).catch((err: BusinessError) => {
-      Logger.error(`err: err code is ${err.code}, err message is ${JSON.stringify(err)}`);
-    });
-    this.baseAddress = sessionConfig.baseAddress;
-    AppStorage.setOrCreate('BaseAddress', this.baseAddress);
   }
 
   build() {
diff --git a/entry/src/main/ets/pages/DNSSetting.ets b/entry/src/main/ets/pages/DNSSetting.ets
index b3763d64ba872d5a58ddaa5beaf623e968d438e2..2b5f965bcc66b16b28242a9d20af89625a5be198 100644
--- a/entry/src/main/ets/pages/DNSSetting.ets
+++ b/entry/src/main/ets/pages/DNSSetting.ets
@@ -17,6 +17,7 @@ import { BusinessError } from '@kit.BasicServicesKit';
 import { rcp } from '@kit.RemoteCommunicationKit';
 import Logger from '../common/Logger';
 import { CommonConstants } from '../common/CommonConstants';
+import { hilog } from '@kit.PerformanceAnalysisKit';
 
 @Builder
 export function DNSSettingBuilder() {
@@ -42,28 +43,33 @@ export struct DNSSetting {
       { ip: '8.8.4.4', port: 53 }
     ];
     // Creating a Communication Session Object
-    const sessionWithCustomDns = rcp.createSession({
-      requestConfiguration: {
-        dns: {
-          dnsRules: customDnsServers
-        },
-        security: {
-          tlsOptions: {
-            tlsVersion: 'TlsV1.3'
+    try {
+      const sessionWithCustomDns = rcp.createSession({
+        requestConfiguration: {
+          dns: {
+            dnsRules: customDnsServers
+          },
+          security: {
+            tlsOptions: {
+              tlsVersion: 'TlsV1.3'
+            }
           }
         }
-      }
-    });
-    // Initiate a request
-    sessionWithCustomDns.get('http://www.example.com').then((response) => {
-      Logger.info(`Request succeeded, message is ${JSON.stringify(response)}`);
-    }).catch((err: BusinessError) => {
-      Logger.error(`err: err code is ${err.code}, err message is ${JSON.stringify(err)}`);
-    });
-    // [End session_with_custom_dns]
-    this.customizingDNS = JSON.stringify(customDnsServers, null, 2);
-    this.textArea = this.customizingDNS;
-    AppStorage.setOrCreate('CustomizingDNS', this.customizingDNS);
+      });
+      // Initiate a request
+      sessionWithCustomDns.get('http://www.example.com').then((response) => {
+        Logger.info(`Request succeeded, message is ${JSON.stringify(response)}`);
+      }).catch((err: BusinessError) => {
+        Logger.error(`err: err code is ${err.code}, err message is ${JSON.stringify(err)}`);
+      });
+      // [End session_with_custom_dns]
+      this.customizingDNS = JSON.stringify(customDnsServers, null, 2);
+      this.textArea = this.customizingDNS;
+      AppStorage.setOrCreate('CustomizingDNS', this.customizingDNS);
+    } catch (error) {
+      let err = error as BusinessError;
+      hilog.error(0x0000, 'DNSSetting', `createSession failed. code=${err.code}, message=${err.message}`);
+    }
   }
 
   setStaticDnsRules() {
@@ -77,28 +83,33 @@ export struct DNSSetting {
       }
     ];
     // Creating a Communication Session Object
-    const sessionWithCustomDns = rcp.createSession({
-      requestConfiguration: {
-        dns: {
-          dnsRules: staticDnsRules
-        },
-        security: {
-          tlsOptions: {
-            tlsVersion: 'TlsV1.3'
+    try {
+      const sessionWithCustomDns = rcp.createSession({
+        requestConfiguration: {
+          dns: {
+            dnsRules: staticDnsRules
+          },
+          security: {
+            tlsOptions: {
+              tlsVersion: 'TlsV1.3'
+            }
           }
         }
-      }
-    });
-    // Initiate a request
-    sessionWithCustomDns.get('http://www.example.com').then((response) => {
-      Logger.info(`Request succeeded, message is ${JSON.stringify(response)}`);
-    }).catch((err: BusinessError) => {
-      Logger.error(`err: err code is ${err.code}, err message is ${JSON.stringify(err)}`);
-    });
-    // [End custom_static_dns]
-    this.staticDNS = JSON.stringify(staticDnsRules, null, 2);
-    this.textArea = this.staticDNS;
-    AppStorage.setOrCreate('StaticDNS', this.staticDNS);
+      });
+      // Initiate a request
+      sessionWithCustomDns.get('http://www.example.com').then((response) => {
+        Logger.info(`Request succeeded, message is ${JSON.stringify(response)}`);
+      }).catch((err: BusinessError) => {
+        Logger.error(`err: err code is ${err.code}, err message is ${JSON.stringify(err)}`);
+      });
+      // [End custom_static_dns]
+      this.staticDNS = JSON.stringify(staticDnsRules, null, 2);
+      this.textArea = this.staticDNS;
+      AppStorage.setOrCreate('StaticDNS', this.staticDNS);
+    } catch (error) {
+      let err = error as BusinessError;
+      hilog.error(0x0000, 'DNSSetting', `createSession failed. code=${err.code}, message=${err.message}`);
+    }
   }
 
   setDnsOverHttps() {
@@ -109,28 +120,33 @@ export struct DNSSetting {
       skipCertificatesValidation: true
     };
     // Creating a Communication Session Object
-    const sessionWithCustomDns = rcp.createSession({
-      requestConfiguration: {
-        dns: {
-          dnsOverHttps: dohConfig
-        },
-        security: {
-          tlsOptions: {
-            tlsVersion: 'TlsV1.3'
+    try {
+      const sessionWithCustomDns = rcp.createSession({
+        requestConfiguration: {
+          dns: {
+            dnsOverHttps: dohConfig
+          },
+          security: {
+            tlsOptions: {
+              tlsVersion: 'TlsV1.3'
+            }
           }
         }
-      }
-    });
-    // Initiate a request
-    sessionWithCustomDns.get('http://www.example.com').then((response) => {
-      Logger.info(`Request succeeded, message is ${JSON.stringify(response)}`);
-    }).catch((err: BusinessError) => {
-      Logger.error(`err: err code is ${err.code}, err message is ${JSON.stringify(err)}`);
-    });
-    // [End config_dns_on_https]
-    this.dnsOverHttp = JSON.stringify(dohConfig, null, 2);
-    this.textArea = this.dnsOverHttp;
-    AppStorage.setOrCreate('DnsOverHttp', this.dnsOverHttp);
+      });
+      // Initiate a request
+      sessionWithCustomDns.get('http://www.example.com').then((response) => {
+        Logger.info(`Request succeeded, message is ${JSON.stringify(response)}`);
+      }).catch((err: BusinessError) => {
+        Logger.error(`err: err code is ${err.code}, err message is ${JSON.stringify(err)}`);
+      });
+      // [End config_dns_on_https]
+      this.dnsOverHttp = JSON.stringify(dohConfig, null, 2);
+      this.textArea = this.dnsOverHttp;
+      AppStorage.setOrCreate('DnsOverHttp', this.dnsOverHttp);
+    } catch (error) {
+      let err = error as BusinessError;
+      hilog.error(0x0000, 'DNSSetting', `createSession failed. code=${err.code}, message=${err.message}`);
+    }
   }
 
   build() {
diff --git a/entry/src/main/ets/pages/MultipartForm.ets b/entry/src/main/ets/pages/MultipartForm.ets
index 979c59796d946333659add25999b8e2d2c2eb9b5..e03780cdfd0b67d2232717bef71f919952516cf5 100644
--- a/entry/src/main/ets/pages/MultipartForm.ets
+++ b/entry/src/main/ets/pages/MultipartForm.ets
@@ -19,6 +19,7 @@ import Logger from '../common/Logger';
 import { CommonConstants } from '../common/CommonConstants';
 import { SegmentButtonOptions } from '@kit.ArkUI';
 import { ItemRestriction, SegmentButton, SegmentButtonTextItem } from '@ohos.arkui.advanced.SegmentButton';
+import { hilog } from '@kit.PerformanceAnalysisKit';
 
 @Builder
 export function MultipartFormBuilder() {
@@ -98,21 +99,26 @@ export struct MultipartForm {
       }
     };
     // Create a communication session object session
-    const session = rcp.createSession({ requestConfiguration: { security: securityConfig } });
-    // Define the request object req
-    let req =
-      new rcp.Request('https://www.example.com', 'POST', headers, multiForm, cookies, transferRange, configuration);
-    req.content = multiForm;
-
-    // Initiate a request
-    session.fetch(req).then((response) => {
-      Logger.info(`Request succeeded, message is ${JSON.stringify(response)}`);
-    }).catch((err: BusinessError) => {
-      Logger.error(`err: err code is ${err.code}, err message is ${JSON.stringify(err)}`);
-    });
-    // [End upload_form]
-    this.multipartFormHeaders = JSON.stringify(multiForm, null, 2);
-    AppStorage.setOrCreate('MultipartFormHeaders', this.multipartFormHeaders);
+    try {
+      const session = rcp.createSession({ requestConfiguration: { security: securityConfig } });
+      // Define the request object req
+      let req =
+        new rcp.Request('https://www.example.com', 'POST', headers, multiForm, cookies, transferRange, configuration);
+      req.content = multiForm;
+
+      // Initiate a request
+      session.fetch(req).then((response) => {
+        Logger.info(`Request succeeded, message is ${JSON.stringify(response)}`);
+      }).catch((err: BusinessError) => {
+        Logger.error(`err: err code is ${err.code}, err message is ${JSON.stringify(err)}`);
+      });
+      // [End upload_form]
+      this.multipartFormHeaders = JSON.stringify(multiForm, null, 2);
+      AppStorage.setOrCreate('MultipartFormHeaders', this.multipartFormHeaders);
+    } catch (error) {
+      let err = error as BusinessError;
+      hilog.error(0x0000, 'MultipartForm', `createSession failed. code=${err.code}, message=${err.message}`);
+    }
   }
 
   build() {
diff --git a/entry/src/main/ets/pages/TracingPoint.ets b/entry/src/main/ets/pages/TracingPoint.ets
index 7bbfb8d54b968ed9146d1a0363ffbdf6b2f7f747..2b0d93ad850a1d2d10b2f4288e833e19452e27a3 100644
--- a/entry/src/main/ets/pages/TracingPoint.ets
+++ b/entry/src/main/ets/pages/TracingPoint.ets
@@ -17,6 +17,7 @@ import { BusinessError } from '@kit.BasicServicesKit';
 import { rcp } from '@kit.RemoteCommunicationKit';
 import Logger from '../common/Logger';
 import { CommonConstants } from '../common/CommonConstants';
+import { hilog } from '@kit.PerformanceAnalysisKit';
 
 @Builder
 export function TracingPointBuilder() {
@@ -65,15 +66,20 @@ export struct TracingPoint {
       }
     };
     // Use the configuration in the session creation
-    const session = rcp.createSession({ requestConfiguration: { tracing: tracingConfig, security: securityConfig } });
-    session.get('http://developer.huawei.com').then((response) => {
-      Logger.info(`Request succeeded, message is ${JSON.stringify(response)}`);
-    }).catch((err: BusinessError) => {
-      Logger.error(`err: err code is ${err.code}, err message is ${JSON.stringify(err)}`);
-    });
-    // [End custom_http_events_handler]
-    this.detailInfo = JSON.stringify(tracingConfig, null, 2);
-    AppStorage.setOrCreate('TracingPoint', this.detailInfo);
+    try {
+      const session = rcp.createSession({ requestConfiguration: { tracing: tracingConfig, security: securityConfig } });
+      session.get('http://developer.huawei.com').then((response) => {
+        Logger.info(`Request succeeded, message is ${JSON.stringify(response)}`);
+      }).catch((err: BusinessError) => {
+        Logger.error(`err: err code is ${err.code}, err message is ${JSON.stringify(err)}`);
+      });
+      // [End custom_http_events_handler]
+      this.detailInfo = JSON.stringify(tracingConfig, null, 2);
+      AppStorage.setOrCreate('TracingPoint', this.detailInfo);
+    } catch (error) {
+      let err = error as BusinessError;
+      hilog.error(0x0000, 'TracingPoint', `createSession failed. code=${err.code}, message=${err.message}`);
+    }
   }
 
   build() {