一、APP原型
参考另一篇博客：http://www.jianshu.com/p/e2b31ba2035e
二、项目需求
为签到App提供登录、注册、请假，签到等相关数据接口。
三、项目结构
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四、数据库设计
用到了Mongoose将实体类和数据库对象一一对应起来，同时通过Mongoose操作数据库也极为简单。
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五、编写相关实体类
用户
var userschema=new mongoose.Schema({
username:String,
password:String
});
签到记录
var signinschema=new mongoose.Schema({
user_name:String,
unique_id:String,/username+日期/
am_signin:String,
am_signout:String,
pm_signin:String,
pm_signout:String,
night_signout:String,
night_signin:String,
create_date:{type: Date, default: Date.now}
});
请假记录
var holidayschema=new mongoose.Schema({
user_name:String,
begin_time:String,
end_time:String,
reason:String,
feedback:String
});
六、路由控制
APP需要什么样的接口，在此文件里配置，然后再在相应的控制器中写相应的函数逻辑处理代码。
module.exports = function(app) {
/*处理用户登录请求*/
app.post('/phone_api/login',User.login);
/*处理用户登录请求*/
app.post('/phone_api/register',User.register);
/*用户提交请假请求*/
app.post('/phone_api/add_holiday',Holiday.addHoliday);
/*获取用户提交请假记录*/
app.post('/phone_api/get_holidays',Holiday.getHolidays);
/*用户签到*/
app.post('/phone_api/sign_in',Signin.signin);
/*用户签到签到记录*/
app.post('/phone_api/get_signins',Signin.getSignins);
};
七、主要代码
7.1、用户登录
/*处理用户登录请求*/
exports.login=function(req,res){
var username=req.body.username;
var password=req.body.password;
User.findOne({username:username}, function (err, docs) {
if(err){
res.json({"status":"error","msg":"error_system"});/*系统错误*/
}else if(docs==null){
res.json({"status":"error","msg":"error_username"});/*用户名不存在*/
} else {
if(docs.password==password){
res.json({"status":"success","msg":""});
}
else{
res.json({"status":"error","msg":"error_password"});
}
}
})
}
7.2、用户签到：主要判断用户点击的按钮，同时需要当前是否存在用户签到记录，通过一个可预见性的Unique_id来实现。及用户名加日期来限制该记录当天的唯一性。
exports.signin=function(req,res){
var unique_id=req.body.unique_id;
var user_name=req.body.user_name;
var type=req.body.type;
var date=req.body.date;
Signin.findOne({unique_id:unique_id}, function (err, docs) {
if(err){
res.json({"status":"error","msg":"error_system"});/*系统错误*/
}else if(docs==null){
/*如何没有找到签到记录，那么是当天第一次签到*/
var newSignin=new Signin();
newSignin.unique_id=unique_id;
newSignin.user_name=user_name;
if(type=="am_signin"){
newSignin.am_signin=date;
newSignin.am_signout="0";
newSignin.pm_signin="0";
newSignin.pm_signout="0";
newSignin.night_signin="0";
newSignin.night_signout="0";
newSignin.save(function(err){
if(err){
res.json({"status":"error","msg":"error_system"})
}else{
res.json({"status":"success","msg":""});
}
});
}else if(type=="am_signout"){
newSignin.am_signin="0";
newSignin.am_signout=date;
newSignin.pm_signin="0";
newSignin.pm_signout="0";
newSignin.night_signin="0";
newSignin.night_signout="0";
newSignin.save(function(err){
if(err){
res.json({"status":"error","msg":"error_system"})
}else{
res.json({"status":"success","msg":""});
}
});
}else if(type=="pm_signin"){
newSignin.am_signin="0";
newSignin.am_signout="0";
newSignin.pm_signin=date;
newSignin.pm_signout="0";
newSignin.night_signin="0";
newSignin.night_signout="0";
newSignin.save(function(err){
if(err){
res.json({"status":"error","msg":"error_system"})
}else{
res.json({"status":"success","msg":""});
}
});
}else if(type=="pm_signout"){
newSignin.am_signin="0";
newSignin.am_signout="0";
newSignin.pm_signin="0";
newSignin.pm_signout=date;
newSignin.night_signin="0";
newSignin.night_signout="0";
newSignin.save(function(err){
if(err){
res.json({"status":"error","msg":"error_system"})
}else{
res.json({"status":"success","msg":""});
}
});
}else if(type=="night_signin"){
newSignin.am_signin="0";
newSignin.am_signout="0";
newSignin.pm_signin="0";
newSignin.pm_signout="0";
newSignin.night_signin=date;
newSignin.night_signout="0";
newSignin.save(function(err){
if(err){
res.json({"status":"error","msg":"error_system"})
}else{
res.json({"status":"success","msg":""});
}
});
}else if(type=="night_signout"){
newSignin.am_signin="0";
newSignin.am_signout="0";
newSignin.pm_signin="0";
newSignin.pm_signout="0";
newSignin.night_signin="0";
newSignin.night_signout=date;
newSignin.save(function(err){
if(err){
res.json({"status":"error","msg":"error_system"})
}else{
res.json({"status":"success","msg":""});
}
});
}
} else {
/*如果有记录，只需要修改签到记录即可*/
if(type=="am_signin"){
/*修改签到记录*/
if(docs.am_signin=="0"){
docs.am_signin=date;
docs.save(function(err){
if(err){
res.json({"status":"error","msg":"error_system"})
}else{
res.json({"status":"success","msg":""});
}
});
}else{
/*如果有记录，则表示已经签到过了*/
res.json({"status":"error","msg":"already_signin"});
}
}else if(type=="am_signout"){
if(docs.am_signout=="0"){
docs.am_signout=date;
docs.save(function(err){
if(err){
res.json({"status":"error","msg":"error_system"})
}else{
res.json({"status":"success","msg":""});
}
});
}else{
/*如果有记录，则表示已经签到过了*/
res.json({"status":"error","msg":"already_signin"});
}
}else if(type=="pm_signin"){
if(docs.pm_signin=="0"){
docs.pm_signin=date;
docs.save(function(err){
if(err){
res.json({"status":"error","msg":"error_system"})
}else{
res.json({"status":"success","msg":""});
}
});
}else{
/*如果有记录，则表示已经签到过了*/
res.json({"status":"error","msg":"already_signin"});
}
}else if(type=="pm_signout"){
if(docs.pm_signout=="0"){
docs.pm_signout=date;
docs.save(function(err){
if(err){
res.json({"status":"error","msg":"error_system"})
}else{
res.json({"status":"success","msg":""});
}
});
}else{
/*如果有记录，则表示已经签到过了*/
res.json({"status":"error","msg":"already_signin"});
}
}else if(type=="night_signin"){
if(docs.night_signin=="0"){
docs.night_signin=date;
docs.save(function(err){
if(err){
res.json({"status":"error","msg":"error_system"})
}else{
res.json({"status":"success","msg":""});
}
});
}else{
/*如果有记录，则表示已经签到过了*/
res.json({"status":"error","msg":"already_signin"});
}
}else if(type=="night_signout"){
if(docs.night_signout=="0"){
docs.night_signout=date;
docs.save(function(err){
if(err){
res.json({"status":"error","msg":"error_system"})
}else{
res.json({"status":"success","msg":""});
}
});
}else{
/*如果有记录，则表示已经签到过了*/
res.json({"status":"error","msg":"already_signin"});
}
}
}
})
}
7.3 关于分页获取签到记录
sort按照id倒序排列，limit每页显示10条记录，skip跳过多少条记录。
/*获得用户签到记录*/
exports.getSignins=function(req,res){
/*用户id*/
var user_name=req.body.user_name;
/*页数*/
var page_num=req.body.page_num;
/*分页*/
Signin.find({user_name:user_name}).sort({'_id':-1}).limit(10).skip((page_num-1)*10).exec(function (err, doc) {
if(err){
res.json({"status":"error","msg":"error_system"});
}else{
if(doc.isNull){
res.json({"status":"success","msg":"data_empty"});
}
res.json({"status":"success","msg":doc});
}
})
}
八、问题与总结
使用Natapp内外网映射工具的时候需要修改端口号，将其从默认3000修改为80。
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APP项目源码： https://github.com/dpc761218914/SignIn
Node.js服务端源码： https://github.com/dpc761218914/SignIn_Server
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