nodejs ejs模板数据库操作

1. 建立数据连接setting.js

var settings = {};

settings.db = {

host: 'localhost',

user: 'root',

password: '1234',

port: '3306',

database: 'testnode'

}

module.exports = settings;

2. mysqlconn.js

var mysql = require('mysql');

var settings = require('./setting')

var conn = mysql.createConnection(settings.db);

conn.connect();

module.exports = conn;

3. app.js

app.set('views', path.join(__dirname, 'views'));

//设置模板的后缀是html

app.engine('html', require('ejs').renderFile);

//指定总模板

app.set('view engine', 'html');

4.建立路由idnex.js

var express = require('express');

var router = express.Router();

var data = require('../DataSql/index')

//用户学生列表

router.get('/', function(req, res, next)

{

data.getList(function(err,retult)

{

res.render('index', {

title: '学生列表',

data:retult

});

})

});

module.exports = router;

5.views 建立index.html

<!DOCTYPE html>

<html lang="en">

<head>

<meta charset="UTF-8">

<title>

<%=title%>

</title>

</head>

<body style="margin:auto 0">

<form action="/users/search" method="post">

<div style="padding: 0fr; position:relative; margin: 0 auto;">

姓名：<input type="text" name="s_name" value="<%=data.usernmae%>">

年龄：<input type="text" name="s_age" value="<%=data.sex%>">

<input type="submit" value="查询">

</div>

</div>

</form>

<table style="margin: 10px">

<tr>

<th>编号</th>

<th>姓名</th>

<th>年龄</th>

<th>操作</th>

</tr>

<% for(var i=0;i<data.length;i++){%>

<tr>

<td>

<%=data[i].id%>

</td>

<td>

<%=data[i].usernmae%>

</td>

<td>

<%=data[i].sex%>

</td>

<td><a href="/users/add">添加用户</a></td>

<td><a href="/users/del/<%=data[i].id %>">删除</a></td>

<td><a href="/users/toUpdate/<%=data[i].id %>">修改</a></td>

</tr>

<%}%>

</table>

</body>

</html>

5.数据库操作index.js

//var db = require("./mysql");

var conn =require("../DataSql/sqlconn");

/* exports.getList = function (callback)

{

var sqlstr = "select * from student";

db.driver.execQuery(sqlstr,function(err, data)

{

return callback(err, data);

});

}; */

exports.getList = function (callback)

{

var sqlstr = "select * from student";

conn.query(sqlstr,function(err, data)

{

return callback(err, data);

});

};

//conn.end();

//console.log(db);

pasting

数据库

/*

Navicat MySQL Data Transfer

Source Server         : localhost

Source Server Version : 50519

Source Host           : localhost:3306

Source Database       : testnode

Target Server Type    : MYSQL

Target Server Version : 50519

File Encoding         : 65001

Date: 2018-09-14 15:26:22

*/

SET FOREIGN_KEY_CHECKS=0;

-- ----------------------------

-- Table structure for student

-- ----------------------------

DROP TABLE IF EXISTS `student`;

CREATE TABLE `student` (

  `id` int(11) NOT NULL,

  `usernmae` varchar(255) DEFAULT NULL,

  `sex` varchar(100) DEFAULT NULL,

  PRIMARY KEY (`id`)

) ENGINE=InnoDB DEFAULT CHARSET=latin1;

-- ----------------------------

-- Records of student

-- ----------------------------

INSERT INTO `student` VALUES ('1', 'dqh', '33');

INSERT INTO `student` VALUES ('2', 'ddd', '11');

INSERT INTO `student` VALUES ('3', 'eee', '11');