Mysql inserts Chinese strings with garbled characters to display ??? _ MySQL

Mysql inserts Chinese strings with garbled characters to display ??? Solution to mysql Chinese garbled characters:

1. when creating a database in mysql, ensure that the encoding method is UTF-8.

2. set the encoding mode to UTF-8 for the url of the database connection.

If the database driver, url, and other configuration information are placed in the properties File, set database. url = jdbc: mysql: // 127.0.0.1: 3306 dbname? UseUnicode = true & characterEncoding = utf8

If the configuration is directly performed in the xml file, the settings are as follows: