This commit is contained in:
kingecg 2025-02-16 23:19:52 +08:00
commit e87ed2f93f
7 changed files with 1366 additions and 0 deletions

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# Logs
logs
*.log
npm-debug.log*
yarn-debug.log*
yarn-error.log*
# Dependency directories
node_modules/
# Build directory
build/
# OS generated files
.DS_Store
Thumbs.db
# IDE and editor files
.idea/
.vscode/
*.sublime-project
*.sublime-workspace
*.suo
*.user
*.userosscache
*.sln.docstates
# Uploads directory
uploads/

917
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"integrity": "sha512-BNGbWLfd0eUPabhkXUVm0j8uuvREyTh5ovRa/dyow/BqAbZJyC+5fU+IzQOzmAKzYqYRAISoRhdQr3eIZ/PXqg==",
"engines": {
"node": ">= 0.8"
}
},
"node_modules/xtend": {
"version": "4.0.2",
"resolved": "https://registry.npmmirror.com/xtend/-/xtend-4.0.2.tgz",
"integrity": "sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ==",
"engines": {
"node": ">=0.4"
}
}
}
}

16
package.json Normal file
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{
"name": "printserver",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"keywords": [],
"author": "",
"license": "ISC",
"dependencies": {
"express": "^4.21.2",
"multer": "^1.4.5-lts.1"
}
}

25
print.js Normal file
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const { exec } = require('child_process');
function printFile(filePath, printOption, pages, callback) {
let command = `lp ${filePath}`;
if (printOption === 'odd') {
command += ' -o page-set=odd';
} else if (printOption === 'even') {
command += ' -o page-set=even';
} else if (printOption === 'specific' && pages) {
command += ` -P ${pages}`;
}
exec(command, (error, stdout, stderr) => {
if (error) {
callback(new Error(`Error printing file: ${stderr}`));
return;
}
callback(null);
});
}
module.exports = {
printFile
};

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<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>打印机配置</title>
<script src="https://cdn.jsdelivr.net/npm/vue@2"></script>
<script src="https://cdn.jsdelivr.net/npm/ant-design-vue@1.7.8/dist/antd.min.js"></script>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/ant-design-vue@1.7.8/dist/antd.min.css">
</head>
<body>
<div id="app">
<a-config-provider>
<a-layout>
<a-layout-content>
<a-card title="打印机配置">
<a-form :form="form" @submit="handleSubmit">
<a-form-item label="打印机名称">
<a-select v-decorator="['printerName', { rules: [{ required: true, message: '请选择一个打印机!' }] }]">
<a-select-option v-for="printer in printers" :key="printer" :value="printer">{{ printer }}</a-select-option>
</a-select>
</a-form-item>
<a-form-item>
<a-button type="primary" html-type="submit">保存配置</a-button>
</a-form-item>
</a-form>
<h2>当前配置</h2>
<p v-if="currentPrinter">当前打印机: {{ currentPrinter }}</p>
<p v-else>未找到配置。</p>
</a-card>
</a-layout-content>
</a-layout>
</a-config-provider>
</div>
<script>
new Vue({
el: '#app',
data() {
return {
form: this.$form.createForm(this, { name: 'coordinated' }),
printers: [],
currentPrinter: ''
};
},
mounted() {
this.fetchConfig();
this.fetchPrinters();
},
methods: {
handleSubmit(e) {
e.preventDefault();
this.form.validateFields((err, values) => {
if (!err) {
fetch('/configure-printer', {
method: 'POST',
headers: {
'Content-Type': 'application/json'
},
body: JSON.stringify(values)
})
.then(response => response.json())
.then(data => {
this.$message.success(data.message);
this.currentPrinter = values.printerName;
})
.catch(error => {
console.error('Error:', error);
this.$message.error('保存配置失败。');
});
}
});
},
fetchConfig() {
fetch('/get-config')
.then(response => response.json())
.then(data => {
if (data.printerName) {
this.currentPrinter = data.printerName;
this.form.setFieldsValue({ printerName: data.printerName });
}
})
.catch(error => {
console.error('获取配置失败:', error);
});
},
fetchPrinters() {
fetch('/get-printers')
.then(response => response.json())
.then(data => {
this.printers = data;
})
.catch(error => {
console.error('获取打印机失败:', error);
});
}
}
});
</script>
</body>
</html>

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<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>上传并打印文件</title>
<script src="https://cdn.jsdelivr.net/npm/vue@2"></script>
<script src="https://cdn.jsdelivr.net/npm/ant-design-vue@1.7.8/dist/antd.min.js"></script>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/ant-design-vue@1.7.8/dist/antd.min.css">
</head>
<body>
<div id="app">
<a-config-provider>
<a-layout>
<a-layout-content>
<a-card title="上传并打印文件">
<p>打印机状态: {{ printerStatus }}</p>
<a-progress :percent="printProgress" v-if="printProgress > 0" />
<a-form :form="form" @submit="handleSubmit">
<a-form-item label="选择文件">
<a-upload
name="file"
:before-upload="beforeUpload"
:file-list="fileList"
>
<a-button>
<template #icon>
<UploadOutlined />
</template>
点击上传
</a-button>
</a-upload>
</a-form-item>
<a-form-item label="打印选项">
<a-select v-decorator="['printOption', { rules: [{ required: true, message: '请选择打印选项!' }] }]">
<a-select-option value="all">打印所有页面</a-select-option>
<a-select-option value="odd">打印奇数页</a-select-option>
<a-select-option value="even">打印偶数页</a-select-option>
<a-select-option value="specific">打印指定页面</a-select-option>
</a-select>
</a-form-item>
<a-form-item v-if="form.getFieldValue('printOption') === 'specific'" label="页面">
<a-input v-decorator="['pages', { rules: [{ required: true, message: '请指定页面!' }] }]" placeholder="例如1,3,5-7" />
</a-form-item>
<a-form-item>
<a-button type="primary" html-type="submit">上传并打印</a-button>
</a-form-item>
</a-form>
</a-card>
</a-layout-content>
</a-layout>
</a-config-provider>
</div>
<script>
new Vue({
el: '#app',
data() {
return {
form: this.$form.createForm(this, { name: 'coordinated' }),
fileList: [],
printerStatus: '未配置',
printProgress: 0
};
},
mounted() {
this.fetchPrinterStatus();
},
methods: {
handleSubmit(e) {
e.preventDefault();
this.form.validateFields((err, values) => {
if (!err) {
const formData = new FormData();
formData.append('file', this.fileList[0]);
formData.append('printOption', values.printOption);
formData.append('pages', values.pages || '');
fetch('/upload', {
method: 'POST',
body: formData
})
.then(response => response.json())
.then(data => {
if (data.progress) {
this.printProgress = data.progress;
this.pollPrintProgress();
} else {
this.$message.success(data.message);
}
})
.catch(error => {
console.error('Error:', error);
this.$message.error('上传并打印文件失败。');
});
}
});
},
beforeUpload(file) {
this.fileList = [...this.fileList, file];
return false;
},
fetchPrinterStatus() {
fetch('/get-printer-status')
.then(response => response.json())
.then(data => {
this.printerStatus = data.status;
})
.catch(error => {
console.error('获取打印机状态失败:', error);
});
},
pollPrintProgress() {
const interval = setInterval(() => {
fetch('/get-print-progress')
.then(response => response.json())
.then(data => {
this.printProgress = data.progress;
if (data.progress >= 100) {
clearInterval(interval);
this.$message.success('打印完成');
}
})
.catch(error => {
console.error('获取打印进度失败:', error);
});
}, 1000);
}
}
});
</script>
</body>
</html>

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const express = require('express');
const multer = require('multer');
const path = require('path');
const print = require('./print');
const fs = require('fs');
const util = require('util');
const exec = require('child_process').exec;
const app = express();
const port = 3000;
// 设置multer存储引擎
const storage = multer.diskStorage({
destination: function (req, file, cb) {
cb(null, 'uploads/');
},
filename: function (req, file, cb) {
cb(null, Date.now() + path.extname(file.originalname)); // 重命名文件以避免冲突
}
});
const upload = multer({ storage: storage });
// 创建uploads目录
const dir = './uploads';
if (!fs.existsSync(dir)){
fs.mkdirSync(dir);
}
// 提供静态文件服务
app.use(express.static('public'));
// 定义文件上传路由
app.post('/upload', upload.single('file'), (req, res) => {
if (!req.file) {
return res.status(400).send('No file uploaded.');
}
const filePath = req.file.path;
const printOption = req.body.printOption;
const pages = req.body.pages;
print.printFile(filePath, printOption, pages, (err) => {
if (err) {
return res.status(500).send('Error printing file: ' + err.message);
}
res.json({ message: 'File uploaded and printed successfully.', progress: 0 });
});
});
// 定义打印机配置路由
app.post('/configure-printer', express.json(), (req, res) => {
const printerName = req.body.printerName;
if (!printerName) {
return res.status(400).send('Printer name is required.');
}
// 读取现有配置
let config = {};
const configFilePath = './printerConfig.json';
if (fs.existsSync(configFilePath)) {
const configFileContent = fs.readFileSync(configFilePath, 'utf8');
config = JSON.parse(configFileContent);
}
// 更新配置
config.printerName = printerName;
// 写入配置文件
fs.writeFileSync(configFilePath, JSON.stringify(config, null, 2));
// 应用配置到系统
const applyConfig = (config) => {
return new Promise((resolve, reject) => {
// 假设使用lpadmin命令来设置默认打印机
exec(`lpadmin -d ${config.printerName}`, (error, stdout, stderr) => {
if (error) {
reject(new Error(`Error applying configuration: ${stderr}`));
return;
}
resolve(`Configuration applied successfully: ${config.printerName}`);
});
});
};
applyConfig(config)
.then(message => {
res.json({ message });
})
.catch(error => {
res.status(500).json({ error: error.message });
});
});
// 获取当前配置
app.get('/get-config', (req, res) => {
const configFilePath = './printerConfig.json';
if (fs.existsSync(configFilePath)) {
const configFileContent = fs.readFileSync(configFilePath, 'utf8');
const config = JSON.parse(configFileContent);
res.json(config);
} else {
res.json({});
}
});
// 获取可用打印机列表
app.get('/get-printers', (req, res) => {
exec('lpstat -p -d', (error, stdout, stderr) => {
if (error) {
return res.status(500).send('Error getting printers: ' + stderr);
}
const printers = stdout.split('\n').map(line => line.trim()).filter(line => line.startsWith('printer'));
const printerList = printers.map(printer => printer.split(' ')[1]);
res.json(printerList);
});
});
// 获取打印机状态
app.get('/get-printer-status', (req, res) => {
exec('lpstat -p', (error, stdout, stderr) => {
if (error) {
return res.status(500).send('Error getting printer status: ' + stderr);
}
const statusLines = stdout.split('\n').map(line => line.trim());
let status = '未配置';
if (statusLines.some(line => line.includes('disabled'))) {
status = '未开机';
} else if (statusLines.some(line => line.includes('printing'))) {
status = '打印中';
} else if (statusLines.some(line => line.includes('ready'))) {
status = '就绪';
}
res.json({ status });
});
});
// 获取打印进度
app.get('/get-print-progress', (req, res) => {
// 假设有一个全局变量来跟踪打印进度
let printProgress = 0; // 这里需要根据实际情况获取打印进度
res.json({ progress: printProgress });
});
app.listen(port,'0.0.0.0', () => {
console.log(`Server running at http://localhost:${port}`);
});