// 新增app.post('/process_post', urlencodedParser, function (req, res) {  //post处理方法var response = {"names":req.body.names,   //得到页面提交的数据"passwords":req.body.passwords};//鏈接數據庫var mysql = require("mysql");var connection = mysql.createConnection({  //配置参数，然后添加你的数据库里面的表host: '数据库地址',user: '用户名',password: '密码',database: '数据库名称'})connection.connect();  //连接//插入數據var addSql = "insert into formtable(name,password) values(?,?)"; //mysql语句var addParmas = [response.names, response.passwords];//传递参数进入connection.query(addSql, addParmas, function(err, res) {if(err) {console.log("[insert error]-", err.message);return;}else{show(res)//回调}})function show(arr){result.data=arr;res.json(result);//返回给前端res.end();}   })

 //删除数据app.post('/del', urlencodedParser, function (req, res) {  //post处理方法var response = {"ids":req.body.id   //得到页面提交的数据};//鏈接數據庫var mysql = require("mysql");var connection = mysql.createConnection({  //配置参数，然后添加你的数据库里面的表host: '数据库地址',user: '用户名',password: '密码',database: '数据库名称'})connection.connect();  //连接var  userDelSql = 'DELETE FROM formtable WHERE id = ?';var addParmas = [response.ids];connection.query(userDelSql,addParmas,function(err, res) {if(err) {console.log('[select error]-', err.message);return;}else{show(res)} })function show(arr){result.data=arr;res.json(result);res.end();}   })

// 初始化app.post('/init', urlencodedParser, function (req, res) {  //post处理方法var response = {"names":req.body.names   //得到页面提交的数据};//鏈接數據庫var mysql = require("mysql");var connection = mysql.createConnection({  //配置参数，然后添加你的数据库里面的表host: '数据库地址',user: '用户名',password: '密码',database: '数据库名称'})connection.connect();  //连接var selectSql = "select * from formtable";connection.query(selectSql, function(err, res) {if(err) {console.log('[select error]-', err.message);return;}else{show(res)} })function show(arr){result.data=arr;res.json(result);res.end();}   })

//修改数据app.post('/modify', urlencodedParser, function (req, res) {  //post处理方法var response = {"ids":req.body.ids,   //得到页面提交的数据"names":req.body.names,"passwords":req.body.passwords};//鏈接數據庫var mysql = require("mysql");var connection = mysql.createConnection({  //配置参数，然后添加你的数据库里面的表host: '数据库地址',user: '用户名',password: '密码',database: '数据库名称'})connection.connect();  //连接var userModSql = 'UPDATE formtable SET name = ?,password = ? WHERE id = ?';var addParmas = [response.names,response.passwords,response.ids];console.log(addParmas);connection.query(userModSql,addParmas,function(err, res) {if(err) {console.log('[select error]-', err.message);return;}else{show(res)} })function show(arr){result.data=arr;res.json(result);res.end();}   })

//表單提價 from_submit();  //为了方便管理我用函数包起来调用var result = {"status": "200","message": "success",  }//表單提價 function from_submit(){var express = require('express');  //调用模板var app = express();  //不污染本来，用变量来表示var bodyParser = require('body-parser');  //调用模板var mysql = require('mysql');app.use(express.static('public'));  //设置今天文件目录// app.get('/form_index.html',function(req,res){//     res.sendFile(__dirname+"/"+form_index.html); //提供静态文件// })//设置跨域访问app.all('*', function(req, res, next) {res.header("Access-Control-Allow-Origin", "*");res.header("Access-Control-Allow-Headers", "X-Requested-With");res.header("Access-Control-Allow-Methods","PUT,POST,GET,DELETE,OPTIONS");res.header("X-Powered-By",' 3.2.1');res.header("Content-Type", "application/json;charset=utf-8");next();});//創建編碼解析var urlencodedParser = bodyParser.urlencoded({ extended: false })// 新增app.post('/process_post', urlencodedParser, function (req, res) {  //post处理方法// 输出 JSON 格式var response = {"names":req.body.names,   //得到页面提交的数据"passwords":req.body.passwords};//鏈接數據庫var mysql = require("mysql");var connection = mysql.createConnection({  //配置参数，然后添加你的数据库里面的表host: 'localhost',user: 'root',password: 'root',database: 'test'})connection.connect();  //连接//插入數據var addSql = "insert into formtable(name,password) values(?,?)"; //存放数据库语言的，这里是添加var addParmas = [response.names, response.passwords];connection.query(addSql, addParmas, function(err, res) {if(err) {console.log("[insert error]-", err.message);return;}else{show(res)}})function show(arr){result.data=arr;res.json(result);res.end();}   })// 初始化app.post('/init', urlencodedParser, function (req, res) {  //post处理方法// 输出 JSON 格式var response = {"names":req.body.names   //得到页面提交的数据};//鏈接數據庫var mysql = require("mysql");var connection = mysql.createConnection({  //配置参数，然后添加你的数据库里面的表host: 'localhost',user: 'root',password: 'root',database: 'test'})connection.connect();  //连接var selectSql = "select * from formtable";connection.query(selectSql, function(err, res) {if(err) {console.log('[select error]-', err.message);return;}else{show(res)} })function show(arr){result.data=arr;res.json(result);res.end();}   })//删除数据app.post('/del', urlencodedParser, function (req, res) {  //post处理方法// 输出 JSON 格式var response = {"ids":req.body.id   //得到页面提交的数据};//鏈接數據庫var mysql = require("mysql");var connection = mysql.createConnection({  //配置参数，然后添加你的数据库里面的表host: 'localhost',user: 'root',password: 'root',database: 'test'})connection.connect();  //连接var  userDelSql = 'DELETE FROM formtable WHERE id = ?';var addParmas = [response.ids];connection.query(userDelSql,addParmas,function(err, res) {if(err) {console.log('[select error]-', err.message);return;}else{show(res)} })function show(arr){result.data=arr;res.json(result);res.end();}   })//修改数据app.post('/modify', urlencodedParser, function (req, res) {  //post处理方法// 输出 JSON 格式var response = {"ids":req.body.ids,   //得到页面提交的数据"names":req.body.names,"passwords":req.body.passwords};//鏈接數據庫var mysql = require("mysql");var connection = mysql.createConnection({  //配置参数，然后添加你的数据库里面的表host: 'localhost',user: 'root',password: 'root',database: 'test'})connection.connect();  //连接var userModSql = 'UPDATE formtable SET name = ?,password = ? WHERE id = ?';var addParmas = [response.names,response.passwords,response.ids];console.log(addParmas);connection.query(userModSql,addParmas,function(err, res) {if(err) {console.log('[select error]-', err.message);return;}else{show(res)} })function show(arr){result.data=arr;res.json(result);res.end();}   })var server = app.listen(3000, function () {  //监听var host = server.address().addressvar port = server.address().portconsole.log("应用实例，访问地址为 http://%s:%s", host, port)})}