android数据连接建立失败原因,【已解决】AndroidStudio中DatabaseNavigator插件连接mysql建立失败：时区问题...

在学习到JDBC时下载了现下最新版的mysql(mysql-8.0.17-winx64)下载链接&＃xff1a;https://cdn.mysql.com//Downloads/MySQLInstaller/mysql-installer-community-8.0.17.0.msi

mysql-connector-java-8.0.17.jar 下载链接&＃xff1a;http://central.maven.org/maven2/mysql/mysql-connector-java/8.0.17/mysql-connector-java-8.0.17.jar

坑1&＃xff1a;

发现通过“com.mysql.jdbc.Driver”连接不上

解决&＃xff1a;原来是8.0以上版本改为了&＃xff1a;“com.mysql.cj.jdbc.Driver”

坑2&＃xff1a;

java.sql.SQLException: The server time zone value &＃39;&＃xfffd;й&＃xfffd;&＃xfffd;&＃xfffd;׼ʱ&＃xfffd;&＃xfffd;&＃39; is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the serverTimezone configuration property) to use a more specifc time zone value if you want to utilize time zone support.

解决&＃xff1a;将"jdbc:mysql://localhost:3306/mysql"改为"jdbc:mysql://localhost:3306/mydb?serverTimezone&＃61;UTC"

查看mysql的时区&＃xff1a;

坑3&＃xff1a;

前两个坑通过百度就可以轻易查到&＃xff0c;这个坑并没有找到。。。

Android Studio插件&＃xff1a;Database Navigator&＃xff0c;特别好用&＃xff0c;安装方式这里不赘述了&＃xff0c;百度即可查到(貌似目前新版本中自带)

坑来了&＃xff1a;接好&＃xff01;

通过以下方式创建连接&＃xff1a;

报错&＃xff1a;

Cannot connect to "Connection".The server time zone value &＃39;Öйú±ê׼ʱ¼ä&＃39; is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the serverTimezone configuration property) to use a more specifc time zone value if you want to utilize time zone support.

和坑2一样&＃xff0c;可是在这里怎么解决呢&＃xff1f;百度找不到&＃xff0c;各种设置里也找不到。。。通过各种尝试终于&＃xff1a;解决了&＃xff01;

解决如下&＃xff1a;

划重点&＃xff01;划重点&＃xff01;划重点&＃xff01;

创建连接时不要选择具体数据库类型

将代码中的url填入即可&＃xff01;&＃xff01;&＃xff01;

附&＃xff1a;

1. mysql各个版本驱动jar包下载&＃xff1a;http://central.maven.org/maven2/mysql/mysql-connector-java/