仍有两个测试过不了

1. NacosConfigurationXmlJsonTest#contextLoads
2. NacosConfigurationNoSuffixTest#contextLoads
Merge branch 'master' into finchley

spring-cloud-alibaba-examples/seata-example/account-service/pom.xml

@@ -9,6 +9,7 @@
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
+
     <artifactId>account-service</artifactId>
     <name>Spring Cloud Starter Alibaba Seata Example - Account Service</name>
     <packaging>jar</packaging>
@@ -43,7 +44,7 @@
         <dependency>
             <groupId>mysql</groupId>
             <artifactId>mysql-connector-java</artifactId>
-            <version>5.1.31</version>
+            <version>8.0.11</version>
         </dependency>
         <dependency>
             <groupId>log4j</groupId>

spring-cloud-alibaba-examples/seata-example/account-service/src/main/resources/application.properties

@@ -5,9 +5,9 @@ spring.cloud.nacos.discovery.server-addr=localhost:8848
 spring.datasource.name="accountDataSource"
 spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
 spring.datasource.driver-class-name=com.mysql.jdbc.Driver
-spring.datasource.url=jdbc:mysql://xxx:3306/seata?useSSL=false&serverTimezone=UTC
-spring.datasource.username=xxx
-spring.datasource.password=xxx
+spring.datasource.url=jdbc:mysql://localhost:3306/seata?useSSL=false&serverTimezone=UTC&useUnicode=yes&characterEncoding=UTF-8
+spring.datasource.username=root
+spring.datasource.password=qwertyui
 spring.datasource.druid.max-active=20
 spring.datasource.druid.min-idle=2
 spring.datasource.druid.initial-size=2