Ajax を使用して登録およびアバターのアップロード機能を実装する

var mysql = require('mysql');
var pool = mysql.createPool({
host : 'localhost',
user : 'root',
password : 'lovo',
database:"test",
port:3306
});
exports.pool=pool;

var db = require("../DBUtil/dbutil.js");
//var conn = db.conn;
var mypool =db.pool;
function getAllUser(sql,arg,fun){
mypool.getConnection(function(err,conn){
conn.query(sql,arg,fun);
conn.end();
})
}
exports.getAllUser=getAllUser;

var dao = require("../dao/UserDao.js");

exports.regist = function(req,res){
var arg;
if (req.method == "get" || req.method == "GET") {
arg = [req.query.username, req.query.pwd, req.query.pics];
} else {
arg = [req.body.username, req.body.pwd, req.body.pics];
}
var sql = "insert into user_infor(u_name,u_pwd,u_pics) values(?,?,?)"
dao.getAllUser(sql, arg, function (err, result) {
if (err) {
console.log(err);
} else {
if (result.affectedRows>0){
res.sendfile("./static/html/information.html")
} else {
res.sendfile("./static/html/regist.html")
}
}
})
}

exports.listAll=function(req,res){
var sql = " select * from user_infor ";
dao.getAllUser(sql,function (err, result, fields) {
if (err){
console.log(err);
} else {
if (result.length>0){
res.json(result);console.log(result)
} else {
res.send("failed");
}
}
})
}

var http = require("http");
var express = require("express");
var userser = require("./route/UserService.js");
var url= require("url");
var app = express();
app.use(express.cookieParser());
app.use(express.session({
secret:"123456",
name:"userLogin",
cookie:{maxAge:9999999}
}))
app.set("port",8888);
app.use(express.static(dirname+"/static"));
app.use(express.methodOverride());
app.use(express.bodyParser());
app.post("/regist",userser.regist);
app.post("/list",userser.listAll);
http.createServer(app).listen(app.get("port"),function(){
console.log("服务启动成功！监听"+app.get("port")+"端口");
})

function xuanze() {
var pics=document.getElementById("pics");
var picsp = document.getElementById("login_pics");
picsp.style.display = 'block';
var img=document.getElementsByTagName("img");
var picarrs=["../img/user1.jpg",
"../img/user2.jpg",
"../img/user3.jpg",
"../img/user4.jpg",
"../img/user5.jpg",
"../img/user6.jpg",
"../img/user7.jpg",
"../img/user8.jpg",
"../img/user9.jpg",
"../img/user10.jpg",
"../img/user11.jpg",
"../img/user12.jpg",
"../img/user13.jpg",
"../img/user14.jpg",
"../img/user15.jpg",
"../img/user16.jpg",
"../img/user17.jpg",
"../img/user18.jpg",
"../img/user19.jpg",
"../img/user20.jpg",
"../img/user21.jpg",
"../img/user22.jpg",
"../img/user23.jpg",
"../img/user24.jpg"];
for(var i=0;i
ログイン後にコピー

window.onload=function(){
var xmlhttpReq;
if (window.XMLHttpRequest)
xmlhttpReq=new XMLHttpRequest();
else
xmlhttpReq=new ActiveXObject("Microsoft.XMLHTTP");
var url="http://localhost:8888/list";
//初始化信息
xmlhttpReq.open("post",url,true);
//添加请求头
xmlhttpReq.setRequestHeader("Content-type","application/x-www-form-urlencoded");
xmlhttpReq.send(null);
xmlhttpReq.onreadystatechange = function(){
if (xmlhttpReq.readyState==4 && xmlhttpReq.status==200) {
if (xmlhttpReq.responseText != "failed"){
var userinfor = document.getElementById("userinfor");
var users = eval("(" + xmlhttpReq.responseText + ")");
for (var i = 0; i < users.length; i++){
var newRow = userinfor.insertRow();
newRow.style.height = "100px";
newRow.style.backgroundColor = "skyblue";
newRow.insertCell(newRow.cells.length).innerHTML =users[i].u_name;
newRow.insertCell(newRow.cells.length).innerHTML =users[i].u_pwd;
newRow.insertCell(newRow.cells.length).innerHTML ="";//此处要在这个单元格里插入img元素，将提交传过来的路径指定为此img的

newRow.insertCell(newRow.cells.length).innerHTML ="";
}
} else if (xmlhttpReq.responseText == "failed") {
alert("添加新用户失败");
}
}
}
}