package com.example.demo.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import java.util.List;
import java.util.Map;
@Controller
public class HelloTeacher {
    @Autowired
    JdbcTemplate jabcTemplate;
    @ResponseBody
    @GetMapping("/query")
    public Map<String,Object> map(){
        List<Map<String,Object>> list=jabcTemplate.queryForList("select * from newteacher");
        return list.get(0);
    }
}