go-db/myhandle/query_handler_json.go

package myhandle

import (
	"encoding/json"
	"net/http"
	"time"

	"git.x2erp.com/qdy/go-base/types"
)

// queryHandler - 最简单的版本
func QueryHandlerJson[T any, F any](
	w http.ResponseWriter,
	r *http.Request,
	factory F,
	handlerFunc func(F, T) *types.QueryResult,
) {
	// 解析请求参数
	var req T
	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
		// 如果解析失败，也返回 QueryResult 格式
		w.Header().Set("Content-Type", "application/json")
		json.NewEncoder(w).Encode(&types.QueryResult{
			Success: false,
			Error:   "Invalid request body: " + err.Error(),
			Time:    time.Now().Format(time.RFC3339),
		})
		return
	}

	// 执行业务逻辑
	result := handlerFunc(factory, req)

	// 设置头，写入结果
	w.Header().Set("Content-Type", "application/json")
	json.NewEncoder(w).Encode(result)
}