添加 蓝牙打印机获取 打印模板 API 新增 锦隆 物料条码 80×60 100×60 ZPL指令 打印模板

chenhaozhe

2 天以前 72ccd32e36fbc848740165b01b9a75ba014adf2c

 WebAPI/Controllers/WebAPIController.cs

@@ -20,6 +20,7 @@
using WebAPI.Models;
using WebAPI.Service;
using SyntacticSugar.constant;
using System.Text.RegularExpressions;

namespace WebAPI.Controllers
{
@@ -24005,6 +24006,7 @@
        }
        #endregion

        #region  APP登录权限验证接口
        /// <summary>
        /// APP登录权限验证接口
        /// </summary>
@@ -24080,5 +24082,139 @@
                return objJsonResult;
            }
        }
        #endregion

        #region 蓝牙打印机获取打印模板
        public class PrintRequestDto
        {
            public string ptMode { get; set; }
            public string templateName { get; set; }
            public JArray msg { get; set; } // 你的批量数据
        }
        /// <summary>
        /// ptMode: 打印模式，即需要那种打印指令，CPCL,TSPL,ESC,ZPL 中选择
        /// templateName: 模板名，根据模板去指定目录下根据后缀找文件
        /// msg: 打印内容
        /// </summary>
        /// <param name="ptMode"></param>
        /// <param name="templateName"></param>
        /// <param name="msg"></param>
        /// <returns></returns>
        [Route("WebAPI/getBLEPrintTemplate")]
        [HttpPost]
        public object getBLEPrintTemplate([FromBody] PrintRequestDto dto)
        {
            var ptMode = dto.ptMode;
            var templateName = dto.templateName;
            var msg = dto.msg;
            if (string.IsNullOrWhiteSpace(ptMode))
            {
                objJsonResult.code = "0";
                objJsonResult.count = 0;
                objJsonResult.Message = "未选择打印模式，无法生成打印模板!";
                objJsonResult.data = null;
                return objJsonResult;
            }
            if (string.IsNullOrWhiteSpace(templateName))
            {
                objJsonResult.code = "0";
                objJsonResult.count = 0;
                objJsonResult.Message = "未选择打印模板，无法生成打印模板!";
                objJsonResult.data = null;
                return objJsonResult;
            }

            string suffix = ".txt";
            string folder = "ptTemplate";
            // 匹配 {{ 字段名 }} 所需正则表达式 支持中文
            var regex = new Regex(@"{{\s*([\u4e00-\u9fa5a-zA-Z0-9_\s]+?)\s*}}", RegexOptions.Compiled);

            if (ptMode == "ZPL")
            {
                suffix = ".zpl";
                folder = "ZPLTemplate";
            }

            try
            {
                // 读取模板文件
                string rootPath = System.Web.HttpContext.Current.Server.MapPath("~/");
                string templateDir = Path.Combine(rootPath, folder);
                string templateFile = Path.Combine(templateDir, templateName+suffix);

                // 如果目录不存在
                if (!Directory.Exists(templateDir))
                {
                    Directory.CreateDirectory(templateDir);
                }

                // 如果文件不存在
                if (!File.Exists(templateFile))
                {
                    objJsonResult.code = "0";
                    objJsonResult.Message = $"模板文件不存在：{templateFile}";
                    objJsonResult.data = null;
                    return objJsonResult;
                }

                // 读取模板（UTF8 支持中文）
                string templateContent = File.ReadAllText(templateFile, Encoding.UTF8);

                // 逐行读取模板文件
                var lines = templateContent.Split(new[] { "\r\n", "\n" }, StringSplitOptions.None);
                var sb = new StringBuilder();

                foreach(JToken JOneKVP in msg)
                {
                    if(JOneKVP is JObject item)
                    {
                        foreach (var line in lines)
                        {
                            string currentLine = line;

                            // 跳过注释行 //
                            if (currentLine.TrimStart().StartsWith("//"))
                            {
                                continue;
                            }

                            // 正则表达式匹配 {{ 字段名 }} 所在行的字段，如果有，则进行替换，没有，则默认为空字符串
                            currentLine = regex.Replace(currentLine, match =>
                            {
                                string fieldName = match.Groups[1].Value.Trim();
                                if (msg != null && item.ContainsKey(fieldName))
                                {
                                    return item[fieldName]?.ToString() ?? "";
                                }
                                return "";
                            });
                            // 将所有 \n 的换行符 替换为 \r\n

                            sb.Append(currentLine);
                            sb.Append("\r\n"); // 标准换行
                        }
                    }
                }

                
                string result = sb.ToString().TrimEnd();
                // 返回渲染后的打印指令
                objJsonResult.code = "1";
                objJsonResult.count = 1;
                objJsonResult.Message = $"模板渲染成功";
                objJsonResult.data = result;
                return objJsonResult;
            }
            catch (Exception ex)
            {
                objJsonResult.code = "0";
                objJsonResult.count = 0;
                objJsonResult.Message = $"模板渲染失败：{ex.Message}";
                objJsonResult.data = null;
                return objJsonResult;
            }

        }
        #endregion
    }
}