first commit

user/userlogin.go

@@ -0,0 +1,90 @@
+package user
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+
+	"go.mongodb.org/mongo-driver/bson"
+	"go.mongodb.org/mongo-driver/mongo"
+	"go.mongodb.org/mongo-driver/mongo/options"
+)
+
+type Userloginstruct struct {
+	Email    string `json:"email"`
+	Password string `json:"password"`
+}
+
+type Loginresponse struct {
+	Success string `json:"success"`
+	Message string `json:"message"`
+	Token   string `json:"token"`
+}
+
+func Userlogin(w http.ResponseWriter, r *http.Request) {
+	w.Header().Set("Access-Control-Allow-Origin", "http://localhost:5173")
+	w.Header().Set("Access-Control-Allow-Methods", "GET, POST, OPTIONS")
+	w.Header().Set("Access-Control-Allow-Headers", "Content-Type")
+	w.Header().Set("Access-Control-Allow-Credentials", "true")
+
+	if r.Method == "OPTIONS" {
+		w.WriteHeader(http.StatusOK)
+		return
+	}
+
+	body, error := io.ReadAll(r.Body)
+	if error != nil {
+		fmt.Println("数据读取失败")
+		return
+	}
+	fmt.Println(string(body))
+	var userinfo Userloginstruct
+	error = json.Unmarshal(body, &userinfo)
+	if error != nil {
+		fmt.Println("数据解析失败")
+		return
+	}
+
+	mongocli := options.Client().ApplyURI("mongodb://localhost:27017")
+
+	mongoclient, error := mongo.Connect(context.TODO(), mongocli)
+	if error != nil {
+		fmt.Println("数据库连接失败")
+	}
+
+	finduser := mongoclient.Database("user").Collection("userlist")
+
+	filter := bson.M{"email": userinfo.Email, "password": userinfo.Password}
+
+	type theuser struct {
+		Email    string `json:"email"`
+		Password string `json:"password"`
+	}
+
+	var oneuser theuser
+
+	error = finduser.FindOne(context.Background(), filter).Decode(&oneuser)
+	if error != nil {
+		fmt.Println("未找到该用户")
+		loginres := Loginresponse{
+			Success: "no",
+			Message: "登录失败",
+			Token:   "0",
+		}
+		w.Header().Set("Content-Type", "application/json")
+		json.NewEncoder(w).Encode(loginres)
+		return
+	} else {
+		loginres := Loginresponse{
+			Success: "yes",
+			Message: "登录成功",
+			Token:   "1",
+		}
+		w.Header().Set("Content-Type", "application/json")
+		json.NewEncoder(w).Encode(loginres)
+		return
+	}
+
+}