我的第二个项目

Author: *liuhao0826*

controllers/students.js

@@ -0,0 +1,106 @@
+let db =require("../models/db")   //拿到model
+
+// showStudentList  是控制器 用来渲染一个学生列表的页面
+
+exports.showStudents= (req,res)=>{
+    db.getStudents(function(arr){           //arr是从model拿到的数据callback
+        res.render("index2",{"arr":arr})
+    })
+}
+
+exports.showStudent=(req,res)=>{
+    res.render("index")
+}
+
+
+
+exports.doshowStudent = (req,res)=>{
+    db.getStudent(req.body,(arr2) => {
+        res.json({"results": arr2})
+    })
+}
+
+exports.showStudent2 = (req,res)=>{
+    db.getStudent2(req.body,(arr2) => {
+        res.json({"results": arr2})
+    })
+}
+
+  //渲染一个进入添加课程的页面
+exports.add=(req,res)=>{
+    res.render("add")
+}
+
+exports.add2=(req,res)=>{
+    res.render("add2")
+}
+
+
+
+
+// 处理添加课程的逻辑
+exports.doAdd = (req,res)=>{
+    db.save(req.body,function(info){
+        res.send(info)
+    })
+}
+
+
+//处理删除学生的页面
+exports.delete = (req,res)=>{
+     res.render("delete")
+    }
+
+ exports.delete2 = (req,res)=>{
+    res.render("delete2")
+     }
+
+//处理删除学生的逻辑
+exports.doDelete = (req,res)=>{
+    db.deleteone(req.body,function(info){
+        res.send(info)
+    })
+}
+exports.doDelete2 = (req,res)=>{
+    db.deleteone2(req.body,function(info){
+        res.send(info)
+    })
+}
+
+//渲染一个学生登录成功进入首页的页面
+exports.sy=(req,res)=>{
+    res.render("sy")
+}
+
+exports.dosy = (req,res)=>{
+    db.get(req.body,(arr2) => {
+        res.json({"results": arr2})
+    })
+}
+//渲染一个老师登录成功进入首页的页面
+exports.sy2=(req,res)=>{
+    res.render("sy2")
+}
+
+exports.dosy2 = (req,res)=>{
+    db.get2(req.body,(arr2) => {
+        res.json({"results": arr2})
+    })
+}
+
+//处理完善学生信息的逻辑
+exports.doAdds = (req,res)=>{
+    db.saves(req.body,function(info){
+        res.send(info)
+    })
+}
+
+
+//处理完善老师信息的逻辑
+exports.doAdds2 = (req,res)=>{
+    db.saves2(req.body,function(info){
+        res.send(info)
+    })
+}
+
+

controllers/users.js

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+let dbuser =require("../models/dbuser")   //拿到model
+//渲染登录界面
+exports.login=(req,res)=>{
+    res.render("login")
+}
+//渲染用户登录的逻辑
+  exports.doLogin = (req,res)=>{
+    dbuser.login(req.body,function(info){
+        res.send(info)
+
+    })
+}
+
+//渲染老师登录的逻辑
+exports.doLogin2 = (req,res)=>{
+    dbuser.login2(req.body,function(info){
+        res.send(info)
+
+    })
+}
+
+
+
+//渲染注册界面
+exports.register=(req,res)=>{
+    res.render("register")
+}
+//渲染注册的逻辑
+exports.doRegister = (req,res)=>{
+    dbuser.saveuser(req.body,function(info){
+        res.send(info)
+    })
+}
+
+exports.doRegister2 = (req,res)=>{
+    dbuser.saveuser2(req.body,function(info){
+        res.send(info)
+    })
+}
+

db.js

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+
+//创建数据库，插入集合
+var MongoClient = require('mongodb').MongoClient;
+var url = 'mongodb://localhost:27017/xscms';
+MongoClient.connect(url, { useNewUrlParser: true }, function (err, db) {
+    if (err) throw err;
+    console.log('数据库已创建');
+    var dbase = db.db("xscms");
+    dbase.createCollection('site', function (err, res) {
+        if (err) throw err;
+        console.log("创建site集合!");
+         });
+    dbase.createCollection('users', function (err, res) {
+        if (err) throw err;
+        console.log("创建users集合!");
+       });
+       dbase.createCollection('tusers', function (err, res) {
+        if (err) throw err;
+        console.log("创建tusers集合!");
+        db.close();
+    });
+});
+
+MongoClient.connect(url, { useNewUrlParser: true }, function(err, db) {
+    if (err) throw err;
+    var dbo = db.db("xscms");
+    var myobj = { user: "赵可硕", tuser: "赵四" , book:"计算机网络", time:"2,4,6上午第2节"};
+    dbo.collection("site").insertOne(myobj, function(err, res) {
+        if (err) throw err;
+        console.log("文档插入成功");
+        db.close();
+    });
+});
+MongoClient.connect(url, { useNewUrlParser: true }, function(err, db) {
+    if (err) throw err;
+    var dbo = db.db("xscms");
+    var myobj = { user: "赵可硕" ,password :"123" ,age: "20", sex: "男",place:"洛阳",zy:"物联网工程"};
+    dbo.collection("users").insertOne(myobj, function(err, res) {
+        if (err) throw err;
+        console.log("文档插入成功");
+        db.close();
+    });
+});
+
+MongoClient.connect(url, { useNewUrlParser: true }, function(err, db) {
+    if (err) throw err;
+    var dbo = db.db("xscms");
+    var myobj = { tuser: "赵四" ,tpassword :"123" ,tage: "40", tsex: "男",tplace:"洛阳" ,txy:"信息工程学院"};
+    dbo.collection("tusers").insertOne(myobj, function(err, res) {
+        if (err) throw err;
+        console.log("文档插入成功");
+        db.close();
+    });
+});
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