是使用php laravel搭建的一个小票打印的Api服务，使用php的mike42/escpos-php库。
内容部包含一个独立解压版的php7.3.4,不需另行安装php环境

在操作之前，请先在安装好小票打印机及驱动。

1.添加打印机：选择安装的小票打印机，点击“+”号
如果列表内为空，则新添加的打印机会成为默认打印机。
注意:“虚拟打印机”是无法添加的

2.点击打印测试页，会跳转到预览页，点击右侧，打印按钮。

GET http://localhost:8077/api/printer/get-local-printers

GET http://localhost:8077/api/printer/get-config

POST http://localhost:8077/api/printer/set-printer-config
参数：JSON
{"printer_name":"POS-58","is_default":true}

POST http://localhost:8077/api/printer/set-defult-printer
参数：JSON
{"printer_name":"POS-58"}

POST http://localhost:8077/api/job/print-image-data-url
参数：JSON
printer_name: 可以不传或为空，则使用默认打印机
{"printer_name":"POS-58","image_data":"data:image/png;base64,..."}

示例:
二维码： 内容： https://gitee.com/wuxue107/
二维码的更多属性参考： https://github.com/davidshimjs/qrcodejs
<div class="qrcode center" data-widht=128 data-height=128 data-color-light="#ffffff" data-color-dark="#000000" data-text="https://gitee.com/wuxue107/">
条形码： 内容： nop-printer
二维码的更多属性参考： https://lindell.me/JsBarcode/
<div class="barcode" data-format="pharmacode" data-display-value=false data-width=4 data-height=60 data-text="nop-printer">

http://127.0.0.1:8077/api/job/print-html
请求：POST-JSON:
{"html":"<p>HELLO NOP</p>","printer_name":null}
响应：
{
"code": 0,
"msg": "操作成功",
"data": {
"task_id": 14
}
}

http://127.0.0.1:8077/api/job/print-tpl
请求：POST-JSON:
{"printer_name":null,"tpl_name":"simple-tpl","tpl_params":{"user":"NOP"}}
响应：
{
"code": 0,
"msg": "操作成功",
"data": {
"task_id": 14
}
}

http://127.0.0.1:8077/api/print-tpl/save
请求：POST-JSON:
{"attrs":{"tpl_name":"simple-tpl","tpl_content":"<p>HELLO <%=user%></p>","params_examples":"{\"user\":\"WORLD\"}"}}
响应：
{
"code": 0,
"msg": "操作成功",
"data": {
"tpl_name": "simple-tpl",
"tpl_content": "<p>HELLO <%=user%></p>",
"params_examples": "{\"user\":\"WORLD\"}",
"updated_at": "2021-02-19T16:49:38.000000Z",
"created_at": "2021-02-19T16:49:38.000000Z",
"id": 2
}
}

http://127.0.0.1:8077/api/print-tpl/get
请求：POST-JSON:
{"tpl_name":"simple-tpl"}
响应：
"data": {
"tpl_name": "simple-tpl",
"tpl_content": "<p>HELLO <%=user%></p>",
"params_examples": "{\"user\":\"WORLD\"}",
"updated_at": "2021-02-19T16:49:38.000000Z",
"created_at": "2021-02-19T16:49:38.000000Z",
"id": 2
}
}

http://127.0.0.1:8077/api/print-tpl/delete
请求：POST-JSON:
{"tpl_name":"simple-tpl"}
响应：
{
"code": 0,
"msg": "操作成功",
"data": null
}

运行:printer-start.bat

运行:printer-stop.bat

运行:system-service-install.bat

运行:system-service-uninstall.bat