关于nodejs中的增删改查

Posted 2021-12-30 is-meeeee

1.增加

router.post(‘/insert‘,function(req,res)
  var name = req.body.name;
  var num = req.body.num;
  var job = req.body.job;
  var sql = `insert into user (name,num,job) values ("$name","$num","$job")`
  mc.query(sql,function(err,data)
    res.send(data);
  )
)

2.删除

router.post(‘/delete‘,function(req,res)
  var id = req.body.id;
  var sql = `delete from user where id = $id`;
  mc.query(sql,function(err,data)
    res.send(data);
  )
)

3.修改

 

router.post(‘/update‘,function(req,res)
 var id = req.body.id;
 var num = req.body.num;
 var name = req.body.name;
 var job = req.body.job;
 var sql = `update user set name="$name",num="$num",job="$job" where id=$id`;
  mc.query(sql,function(err,data)
  res.send(data);
 )
)

 

4.查询

 

 

 

router.post(‘/main‘,function(req,res)
  var sql = `select * from user where name like “%name%“`;
  mc.query(sql,function(err,data)
    res.send(data);
 )
)