node關(guān)于MySQL嵌套查詢

小白求教。。我下面這個代碼發(fā)送了stuname給前端，前端也收到了，可是后面跳轉(zhuǎn)了到了頁面mainnav，那么這個stuname怎么傳給mainnav呢？

app.post('/login/stulogin',function(req, res){        
    sql.query('select stuName from student where stuId = "' + req.body.name + '"and stupassword = "' + req.body.password +'"', function (err, row) {
        if(err || row.length == 0) {
            console.log(err);
            res.send({code : 0});
        } else {
            var stuname = {}
            stuname = row[0];
            console.log(stuname);
            res.send({code : 1,stuname:stuname});
        }
    });
});

//前端代碼
if(res.data.code == 1){
          console.log(res.data.code,res.stuname)
          that.$message.success("驗證通過");
          setTimeout(function(){
            that.$router.push("/mainnav")
          },500)
        } else