diff --git a/SpringCloud-Example/admin-client-appmqttserver-yf/pom.xml b/SpringCloud-Example/admin-client-appmqttserver-yf/pom.xml
index cbc12bb..6a34187 100644
--- a/SpringCloud-Example/admin-client-appmqttserver-yf/pom.xml
+++ b/SpringCloud-Example/admin-client-appmqttserver-yf/pom.xml
@@ -14,7 +14,7 @@
     <name>admin-client-appmqttserver-yf</name>
     <description>admin-client-appmqttserver-yf</description>
     <properties>
-        <java.version>1.8</java.version>
+        <java.version>17</java.version>
         <spring-cloud.version>2020.0.3</spring-cloud.version>
     </properties>
     <dependencies>
diff --git a/SpringCloud-Example/admin-client-appmqttserver/pom.xml b/SpringCloud-Example/admin-client-appmqttserver/pom.xml
index 5a269c4..6c057cd 100644
--- a/SpringCloud-Example/admin-client-appmqttserver/pom.xml
+++ b/SpringCloud-Example/admin-client-appmqttserver/pom.xml
@@ -14,7 +14,7 @@
     <name>admin-client-appmqttserver</name>
     <description>Demo project for Spring Boot</description>
     <properties>
-        <java.version>1.8</java.version>
+        <java.version>17</java.version>
         <spring-cloud.version>2020.0.3</spring-cloud.version>
     </properties>
     <dependencies>
diff --git a/SpringCloud-Example/admin-client-appmqttserver/src/main/resources/application.yml b/SpringCloud-Example/admin-client-appmqttserver/src/main/resources/application.yml
index bdd5505..211af4b 100644
--- a/SpringCloud-Example/admin-client-appmqttserver/src/main/resources/application.yml
+++ b/SpringCloud-Example/admin-client-appmqttserver/src/main/resources/application.yml
@@ -45,8 +45,9 @@ spring:
     #url: jdbc:mysql://129.211.119.207:3306/appserver?useUnicode=true&characterEncoding=utf-8&useSSL=false&autoReconnect=true
     #url: jdbc:mysql://192.168.2.18:3306/appserver?useUnicode=true&characterEncoding=utf-8&useSSL=false&autoReconnect=true
     url: jdbc:mysql://127.0.0.1:3306/appserver?useUnicode=true&characterEncoding=utf-8&useSSL=false&autoReconnect=true
-    #url: jdbc:mysql://192.168.1.21:3306/appserver?useUnicode=true&characterEncoding=utf-8&useSSL=false&autoReconnect=true
+    #url: jdbc:mysql://192.168.1.24:3306/appserver?useUnicode=true&characterEncoding=utf-8&useSSL=false&autoReconnect=true
     #url: jdbc:mysql://192.168.3.7:3306/appserver?useUnicode=true&characterEncoding=utf-8&useSSL=false&autoReconnect=true
+    #url: jdbc:mysql://192.168.1.92:3306/appserver?useUnicode=true&characterEncoding=utf-8&useSSL=false&autoReconnect=true
     username: root
     password: Skyinno251,
   jpa:
diff --git a/SpringCloud-Example/admin-client-temperature/pom.xml b/SpringCloud-Example/admin-client-temperature/pom.xml
index 601fa10..48277b0 100644
--- a/SpringCloud-Example/admin-client-temperature/pom.xml
+++ b/SpringCloud-Example/admin-client-temperature/pom.xml
@@ -14,7 +14,7 @@
     <name>admin-client-temperature</name>
     <description>aadmin-client-temperature</description>
     <properties>
-        <java.version>1.8</java.version>
+        <java.version>17</java.version>
         <spring-cloud.version>2020.0.3</spring-cloud.version>
     </properties>
     <dependencies>
diff --git a/SpringCloud-Example/admin-client/pom.xml b/SpringCloud-Example/admin-client/pom.xml
index e965662..7e2a0cf 100644
--- a/SpringCloud-Example/admin-client/pom.xml
+++ b/SpringCloud-Example/admin-client/pom.xml
@@ -15,7 +15,7 @@
     <description>Demo project for Spring Boot</description>
 
     <properties>
-        <java.version>1.8</java.version>
+        <java.version>17</java.version>
         <spring-cloud.version>Greenwich.SR1</spring-cloud.version>
     </properties>
 
diff --git a/SpringCloud-Example/admin-server/pom.xml b/SpringCloud-Example/admin-server/pom.xml
index dcc86b2..c298679 100644
--- a/SpringCloud-Example/admin-server/pom.xml
+++ b/SpringCloud-Example/admin-server/pom.xml
@@ -15,7 +15,7 @@
     <description>Demo project for Spring Boot</description>
 
     <properties>
-        <java.version>1.8</java.version>
+        <java.version>17</java.version>
         <spring-cloud.version>Greenwich.SR1</spring-cloud.version>
     </properties>
 
diff --git a/SpringCloud-Example/eureka-server/pom.xml b/SpringCloud-Example/eureka-server/pom.xml
index 3200056..17b2783 100644
--- a/SpringCloud-Example/eureka-server/pom.xml
+++ b/SpringCloud-Example/eureka-server/pom.xml
@@ -16,7 +16,7 @@
     <description>Demo project for Spring Boot</description>
 
     <properties>
-        <java.version>1.8</java.version>
+        <java.version>17</java.version>
         <spring-cloud.version>Greenwich.RELEASE</spring-cloud.version>
     </properties>
 
diff --git a/SpringCloud-Example/pom.xml b/SpringCloud-Example/pom.xml
index fcf43bb..30f68e6 100644
--- a/SpringCloud-Example/pom.xml
+++ b/SpringCloud-Example/pom.xml
@@ -16,7 +16,7 @@
     <description>Demo project for Spring Boot</description>
 
     <properties>
-        <java.version>1.8</java.version>
+        <java.version>17</java.version>
         <spring-cloud.version>Greenwich.RELEASE</spring-cloud.version>
     </properties>
 
diff --git a/SpringCloud-Example/service-consumer1/pom.xml b/SpringCloud-Example/service-consumer1/pom.xml
index c482ddb..ed762e4 100644
--- a/SpringCloud-Example/service-consumer1/pom.xml
+++ b/SpringCloud-Example/service-consumer1/pom.xml
@@ -16,7 +16,7 @@
     <description>Demo project for Spring Boot</description>
 
     <properties>
-        <java.version>1.8</java.version>
+        <java.version>17</java.version>
         <spring-cloud.version>Greenwich.RELEASE</spring-cloud.version>
     </properties>
 
diff --git a/SpringCloud-Example/service-consumer2/pom.xml b/SpringCloud-Example/service-consumer2/pom.xml
index e64ce93..4c3bdae 100644
--- a/SpringCloud-Example/service-consumer2/pom.xml
+++ b/SpringCloud-Example/service-consumer2/pom.xml
@@ -15,7 +15,7 @@
     <description>Demo project for Spring Boot</description>
 
     <properties>
-        <java.version>1.8</java.version>
+        <java.version>17</java.version>
         <spring-cloud.version>Greenwich.RELEASE</spring-cloud.version>
     </properties>
 
diff --git a/SpringCloud-Example/service-order/pom.xml b/SpringCloud-Example/service-order/pom.xml
index a9de91a..d028940 100644
--- a/SpringCloud-Example/service-order/pom.xml
+++ b/SpringCloud-Example/service-order/pom.xml
@@ -15,7 +15,7 @@
     <description>Demo project for Spring Boot</description>
 
     <properties>
-        <java.version>1.8</java.version>
+        <java.version>17</java.version>
         <spring-cloud.version>Greenwich.RELEASE</spring-cloud.version>
     </properties>
 
diff --git a/SpringCloud-Example/service-user/pom.xml b/SpringCloud-Example/service-user/pom.xml
index 79e8e06..588d73a 100644
--- a/SpringCloud-Example/service-user/pom.xml
+++ b/SpringCloud-Example/service-user/pom.xml
@@ -16,7 +16,7 @@
     <description>Demo project for Spring Boot</description>
 
     <properties>
-        <java.version>1.8</java.version>
+        <java.version>17</java.version>
         <spring-cloud.version>Greenwich.RELEASE</spring-cloud.version>
     </properties>
 
diff --git a/SpringCloud-Example/stream-consumer/pom.xml b/SpringCloud-Example/stream-consumer/pom.xml
index 174bfdc..b3e2878 100644
--- a/SpringCloud-Example/stream-consumer/pom.xml
+++ b/SpringCloud-Example/stream-consumer/pom.xml
@@ -15,7 +15,7 @@
     <description>Demo project for Spring Boot</description>
 
     <properties>
-        <java.version>1.8</java.version>
+        <java.version>17</java.version>
         <spring-cloud.version>Greenwich.SR1</spring-cloud.version>
     </properties>