backend09

backend09
@Data
student

package cn.lnfvc;

import cn.lnfvc.pojo.Student;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class App {
    public static void main(String[] args) {
        SpringApplication.run(App.class);

        Student student=new Student();
        student.setId(100);
        System.out.println(student.getId());



    }
}

TestController.java
跨域

package cn.lnfvc.controller;

import cn.lnfvc.pojo.Student;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.RowMapper;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.List;

@RestController
public class TestController {
    @Autowired
    private JdbcTemplate jdbcTemplate;
    @CrossOrigin
    @RequestMapping("/loadStudent")
    public List loadStudent() {
        String sql = "select * from students";
        List stus=jdbcTemplate.query(sql, new RowMapper() {
            @Override
            public Student mapRow(ResultSet rs, int i) throws SQLException {
                Student student =new Student();
                student.setId(rs.getInt("id"));
                student.setName(rs.getString("name"));
                student.setGender(rs.getBoolean("gender"));
                return student;
            }
        });
        return stus;
    }

}

Student.java(用@Data代替getter and setter)

package cn.lnfvc.pojo;

import lombok.Data;

@Data
public class Student {
    private Integer id;
    private String name;
    private boolean gender;
}