test go server

go.mod

@@ -0,0 +1,3 @@
+module test1
+
+go 1.24.13

main.go

@@ -0,0 +1,61 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"log"
+	"net/http"
+	"time"
+)
+
+// User 结构体，用于返回 JSON 数据
+type User struct {
+	ID   int    `json:"id"`
+	Name string `json:"name"`
+}
+
+// 根路径处理器
+func homeHandler(w http.ResponseWriter, r *http.Request) {
+	fmt.Fprintf(w, "Hello, World! 👋")
+}
+
+// /time 路径处理器，返回当前服务器时间
+func timeHandler(w http.ResponseWriter, r *http.Request) {
+	currentTime := time.Now().Format("2006-01-02 15:04:05")
+	fmt.Fprintf(w, "当前服务器时间: %s", currentTime)
+}
+
+// /api/user 路径处理器，返回 JSON 数据
+func userHandler(w http.ResponseWriter, r *http.Request) {
+	user := User{
+		ID:   1,
+		Name: "张三",
+	}
+	w.Header().Set("Content-Type", "application/json")
+	json.NewEncoder(w).Encode(user)
+}
+
+// 带请求参数处理的处理器
+func helloHandler(w http.ResponseWriter, r *http.Request) {
+	name := r.URL.Query().Get("name")
+	if name == "" {
+		name = "World"
+	}
+	fmt.Fprintf(w, "Hello, %s!", name)
+}
+
+func main() {
+	// 注册路由
+	mux := http.NewServeMux()
+	mux.HandleFunc("/", homeHandler)
+	mux.HandleFunc("/time", timeHandler)
+	mux.HandleFunc("/api/user", userHandler)
+	mux.HandleFunc("/hello", helloHandler)
+
+	// 启动 HTTP 服务
+	addr := ":8080"
+	log.Printf("启动 HTTP 服务，监听端口 %s\n", addr)
+	if err := http.ListenAndServe(addr, mux); err != nil {
+		log.Fatalf("服务器启动失败: %v", err)
+	}
+}