我要评论js连接抖音打印组件实现打印小票
安装抖音打印组件
抖音打印组件文档：
https://bytedance.larkoffice.com/docs/doccn2vboodd3kwrcd6z93nilvg
跟着文档案例一步步配基本上没问题，
打印的时候需要设置下打印机名称
示例代码
export class douyinprint {
constructor(socketurl = "ws://127.0.0.1:13888") {
this.url = socketurl;
this.doconnect();
this.isready = false;
}
doconnect() {
this.socket = new websocket(this.url);
}
/**
* 获取打印机列表
*/
dogetprinters() {
var request = {
requestid: this.getuuid(),
version: "1.0",
cmd: "getprinters"
};
this.socket.send(json.stringify(request));
}
/**
* 获取打印机配置
*/
doprinterconfig() {
var request = {
requestid: this.getuuid(),
version: "1.0",
cmd: "printerconfig"
};
this.socket.send(json.stringify(request));
}
/**
* 设置打印机
* @param {*} data
*/
dosetprinterconfig(data) {
var request = {
requestid: this.getuuid(),
version: "1.0",
cmd: "setprinterconfig",
printer: data
};
this.socket.send(json.stringify(request));
}
/**
* 通过taskid查询打印状态
*/
dogettaskstatus() {
var request = {
requestid: "12345678901234567890",
version: "1.0",
cmd: "gettaskstatus",
taskid: ["1", "2"]
};
this.socket.send(json.stringify(request));
}
// 通过documentid查询打印状态
dogetdocumentstatus() {
var request = {
requestid: "12345678901234567890",
version: "1.0",
cmd: "getdocumentstatus",
documentids: ["9890000076011"]
};
this.socket.send(json.stringify(request));
}
/**
* 打印
* @param {*} printer_name
* @param {*} data
* @param {*} order_id
*/
doprint(printer_name, data,order_id) {
let request ={
"cmd": "print",
"requestid": data.pack_id,
"version": "1.0",
"task": {
"taskid": `${order_id}_${this.getuuid()}`,
"preview": false,
"printer": printer_name,
"documents": [
{
"documentid":data.warehouse_danhao,
"contents": [
{
"templateurl": data.templateurl,
"params": data.params,
"signature": data.signature,
"encrypteddata": data.encrypteddata,
"adddata": data.adddata
},
// {
// "data": {},
// "templateurl": "自定义模板url，保存在isv服务端"
// }
]
}
]
}
}
this.socket.send(json.stringify(request));
}
getuuid(len, radix) {
var chars = "0123456789abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz".split(
""
);
var uuid = [],
i;
radix = radix || chars.length;
if (len) {
for (i = 0; i < len; i++) uuid[i] = chars[0 | (math.random() * radix)];
} else {
var r;
uuid[8] = uuid[13] = uuid[18] = uuid[23] = "-";
uuid[14] = "4";
for (i = 0; i < 36; i++) {
if (!uuid[i]) {
r = 0 | (math.random() * 16);
uuid[i] = chars[i == 19 ? (r & 0x3) | 0x8 : r];
}
}
}
return uuid.join("");
}
}
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