VUE+Axios+Nodejs+express+pgsql实现前后数据交互

// 数据库连接配置
module.exports = {
  pgsql: {
    host: 'localhost',
    port: 5432,
    user: 'postgres',
    password: 'admin',
    database: 'hello',
    poolSize: 5
  }
}

// node 后端服务器

const userApi = require('./api/userApi');
const fs = require('fs');
const path = require('path');
const bodyParser = require('body-parser');
const express = require('express');
const app = express();

app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));

// 后端api路由
app.get('/user/addUser', userApi);
app.post('/user/login', userApi);

// 监听端口
app.listen(8088);
console.log(app);
console.log('success listen at port:3000......');

var db = require('../db');
var express = require('express');
var router = express.Router();
const pgsql = require('pg');
var $sql = require('../sqlMap');

//创建数据池实例
let conn = pgsql.Pool(db.pgsql);

//数据池连接
conn.connect();
var jsonWrite = function (res, ret) {
  if (typeof ret === 'undefined') {
    res.json({
      code: '1',
      msg: '操作失败'
    });
  } else {
    res.json({table:ret.fields});
  }
};

// 增加用户接口
console.log(router);

router.get('/user/addUser', (req, res) => {
  var sql = $sql.user.add;
  var params = req.body;
  console.log(params);
  //conn.query(sql, [params.username, params.age], function (err, result)
  conn.query(sql,function (err, result) {
    if (err) {
      console.log(err);
    }
    if (result) {
      jsonWrite(res, result);
    }
  })
});
router.post('/user/login', (req, res) => {
  var params = req.body;
  var sql = `select cloud_user_status('${params.code}', '${params.password}')`;
  console.log(params);
  //conn.query(sql, [params.username, params.age], function (err, result)
  conn.query(sql, function (err, result) {
    if (err) {
      console.log(err);
    }
    if (result) {
      res.json({ status: result.rows[0].cloud_user_status})
    }
  })
});
//
module.exports = router;