mysql中字段为中文乱码

CREATE DATABASE mydb CHARACTER SET utf8 COLLATE utf8_general_ci;
CREATE TABLE mytable (
    id INT PRIMARY KEY,
    name VARCHAR(100) CHARACTER SET utf8 COLLATE utf8_general_ci
) CHARACTER SET utf8 COLLATE utf8_general_ci;

jdbc:mysql://localhost:3306/mydb?useUnicode=true&characterEncoding=utf8

[client]
default-character-set=utf8

[mysql]
default-character-set=utf8

[mysqld]
character-set-server=utf8
collation-server=utf8_general_ci

ALTER TABLE mytable CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci;

CREATE TABLE mytable (
    id INT PRIMARY KEY,
    name VARCHAR(100) CHARACTER SET utf8 COLLATE utf8_general_ci
) CHARACTER SET utf8 COLLATE utf8_general_ci;

mysqldump -u username -p --default-character-set=utf8 mydb > mydb.sql

SET NAMES utf8;
SOURCE mydb.sql;