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MAT I ENJOY MY LIFE AND PRACTICE MY ART. RESPECTED BY ALL MEN AND IN ALL TIMES.
Mybatis mapper中的SQL语句，union all语法上下文的SQL的返回结果字段名称，数据类型，顺序，需保持和一致
win+R 输入cmd进入命令行查看端口占用情况netstat -ano |findstr 端口号查看占用端口的进程tasklist|findstr 端口号解除占用taskkill /pid 进程号 /F