package com.milotnt; import com.milotnt.mapper.MemberMapper; import com.milotnt.pojo.Member; import org.junit.jupiter.api.Test; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.boot.test.context.SpringBootTest; import org.springframework.jdbc.core.JdbcTemplate; import java.util.List; @SpringBootTest class GymManagementSystemApplicationTests { @Autowired JdbcTemplate jdbcTemplate; @Autowired MemberMapper memberMapper; @Test void contextLoads() { Long aLong = jdbcTemplate.queryForObject("select count(*) from admin", Long.class); System.out.println("记录总数" + aLong); } @Test public void run() throws Exception { List list = memberMapper.findAll(); for (Member member : list) { System.out.println(member); } Integer total = memberMapper.selectTotalCount(); System.out.println(total); } }