Why does mysql-weka have a problem connecting to MySQL!

! IMG (img.ask.csdn.netupload201509281443409614_960824.png) description: 1. MySQL 5.5 dos windows are normal; 2. Java 1.7 dos windows are normal; 3. in weka3.7, MySQL is not configured normally before it is configured, and then the weka console is opened with problems. I 've been suffering for a day! Thank you for your guidance. mysqldosweka

Note:
1. MySQL 5.5 dos window is normal;
2. the dos window of Java 1.7 is normal;
3. weka 3.7 is normal before MySQL is configured

After the configuration is complete, bring the weka console to open it. it's been a day for me! Thank you for your guidance.