node接口学习记录

首先app.js里面

var getRouter = require('./routes/gets');//获取整张表
var getoneRouter = require('./routes/getone');;//根据条件获取
var postRouter = require('./routes/posts');增加
var delRouter = require('./routes/del');删除
var upRouter = require('./routes/updata');更新

app.use('/gets', getRouter);
app.use('/getone', getoneRouter);
app.use('/del', delRouter);
app.use('/postloop', postRouter);
app.use('/updata', upRouter);

routers文件夹下创建gets.js获取整张表数据的接口

var express = require('express');
var router = express.Router();
var mysql = require('mysql');
let connection = mysql.createConnection({
    host: "xxxxxx.com",
    post: 3306,
    user: "root",
    password: "1234go",
    database: 'ssc',
    multipleStatements: true //允许执行多条语句
});
// console.log(88888)
connection.connect();
router.get('/', function(req, res) {
    var value = req.query.table;
    console.log(value);

    var mysql = "select * from `" + value + "`";
    console.log(mysql);
    connection.query(mysql, function(err, result) {
        //............
        console.log(result)
        res.send(result)
            // connection.end();

        // //回到主页
        // res.redirect('/');
        //关闭连接
    });

})

module.exports = router;

根据条件获取数据

connection.connect();
router.get('/loop', function(req, res) {

        console.log(req);
        var name = req.query.name
        var mysql = "select * from `loop` where name='" + name + "'";
        console.log(mysql);
        connection.query(mysql, function(err, result) {
            //............
            console.log(err)
            console.log(result)
            res.send(result)
                // connection.end();

            // //回到主页
            // res.redirect('/');
            //关闭连接
        });

    })
    // var mysql = "select * from `loop` ";
var addSql = 'insert into loop(name,tel,content.ages) values(?,?,?,?)'
router.post('/loop', function(req, res) {

    console.log(req);
    var params = req.body;
    var addSqlParams = [params.name, params.tel, params.content, params.ages]
    connection.query(addSql, addSqlParams, function(err, result) {
        //............
        if (err) {
            console.log(err.message);
            return
        }
        // connection.end();

        // //回到主页
        // res.redirect('/');
        //关闭连接
    });

})

module.exports = router;

增加数据

var express = require('express');
var router = express.Router();
var mysql = require('mysql');
let connection = mysql.createConnection({
    host: "********.com",
    post: 3306,
    user: "root",
    password: "1234go",
    database: 'ssc',
    multipleStatements: true //允许执行多条语句
});
console.log(88888)
connection.connect();
var mysql = "select * from `loop` ";
var addSql = 'insert into `loop` (name,tel,content,ages) values (?,?,?,?)'
router.post('/', function(req, res) {

    console.log(req.body);
    var params = req.body;
    var addSqlParams = [params.name, params.tel, params.content, params.ages]
    connection.query(addSql, addSqlParams, function(err, result) {
        //............
        if (err) {
            console.log(err.message);
            return
        }
    });
    connection.query(mysql, function(err, result) {
        if (err) {
            console.log('[SELECT ERROR] - ', err.message);
            return
        }
        res.send(result)
    });

})

module.exports = router;

更新数据

var express = require('express');
var router = express.Router();
var URL = require('url');
var mysql = require('mysql');
var connection = mysql.createConnection({
    host: '******.com',
    user: 'root',
    password: '1234go',
    database: 'ssc'
});
connection.connect();
// var sql = 'SELECT * FROM `loop`';
// var addSql='INSERT INTO ssc_user(uname,riqi) VALUES(?,?)';
// var addSql = 'UPDATE ssc_user SET uname = ?,riqi = ? ';
router.post('/', function(req, res) {
    // var params = req.body;
    var id = req.body.id;
    var name = req.body.name;
    console.log(req.body)
    connection.query("update `loop` set name='" + name + "' where id='" + id + "'", function(err, rows) {
        // console.log(rows)
        if (err) {
            res.end('修改失败：' + err);
        } else {
            // res.redirect('/users');
            res.send({ status: '200' })
        }
    });
});

module.exports = router;

删除数据

var express = require('express');
var router = express.Router();
var URL = require('url');
var mysql = require('mysql');
var connection = mysql.createConnection({
    host: '****.com',
    user: 'root',
    password: '1234go',
    database: 'ssc'
});
connection.connect();
// var sql='SELECT * FROM name';
// var addSql='INSERT INTO name(uname,sex) VALUES(?,?)';

router.get('/', function(req, res) {
    var params = req.query; // get
    var id = params.name;
    console.log(id)
    connection.query("delete from `loop` where name='" + id + "'", function(err, rows) {
        if (err) {
            res.end('删除失败：' + err)
        } else {
            // res.redirect('/users')
            res.send({ status: '200' })
        }
    });
});
module.exports = router;

js中调用

$.ajax({//获取整张表
        url: '/gets?table=' + value,
        type: 'get',
        dataType: 'json',
        success: function(data) {
            console.log(data)
        },
        error: function(err) {
            console.log(err)
        }
    })
var value = $(this).text()
        $.ajax({//根据条件查找
            url: '/getone/loop?name=' + value,
            type: 'get',
            dataType: 'json',
            success: function(data) {
                console.log(data)
            },
            error: function(err) {
                console.log(err)
            }
        })
 $.ajax({//增加数据
            url: '/postloop',
            type: 'post',
            data: {
                'name': 'qqd',
                'tel': '123456789',
                'content': 'zhevhb',
                'ages': '36'
            },
            dataType: 'json',
            success: function(data) {
                console.log(data)
            },
            error: function(err) {
                console.log(err)
            }
        })
$.ajax({//修改数据
            url: '/updata',
            type: 'post',
            dataType: 'json',
            data: {
                id: '6',
                name: 'upname'
            },
            success: function(data) {
                console.log(data)
            },
            error: function(err) {
                console.log(err)
            }
        })

 $.ajax({//删除数据
            url: '/del?name=wanghui',
            type: 'get',
            dataType: 'json',
            success: function(data) {
                console.log(data)
            },
            error: function(err) {
                console.log(err)
            }
        })

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