Node bak

process.on('uncaughtException', function (err) {
    logger.info('Local Server Exception: ')
    logger.info(err)
});

var http = require('http');
var express = require('express');
var bodyParser = require('body-parser')
var router = express();
var path = require('path')
var uuid = require('node-uuid')
var fs = require('fs')
// 添加 body-parser 中间件就可以了
/*
router.use(express.static(default_pic))  //设置静态文件路径
router.use(express.static(default_temp_pic));
router.use(express.static(default_re_pic));
*/

router.use(bodyParser.urlencoded({ extended: false }));
router.use(bodyParser.json({limit: '50mb'}));

router.post('/test_upload_file_parts', function (req, res) {
    //data, name , total, index, uuid
    console.log(req)

    var data = req.body.buffer;
    var name = req.body.filename;
    var total = req.body.total;
    var index = req.body.index;
    var uuid = req.body.uuid;
    console.log(data);
    console.log(name ,total , index , uuid);
    if(data && name && total && index && uuid){
        try{
            var root_dir = "d:\\server_picture";
            var temp_dir = path.join(root_dir, uuid);

            if (!fs.existsSync(temp_dir)) {
                console.log(`${temp_dir} is no exist, now to create`);
                fs.mkdirSync(temp_dir);
            }
            var temp_name = `${uuid}_${index}`;
            var temp_file = path.join(temp_dir, temp_name);

            fs.writeFileSync(temp_file, data);
            console.log(temp_file)
            res.send({ 'type': 'AJAX', 'msg': 'ok', body: req.body });
        }catch (err){
            console.log(err)
            res.send({ 'type': 'ERROR', 'msg': err.stack });
        }
    }
    else{
        res.send({ 'type': 'ERROR', 'msg': 'data && name && total && index && uuid error' });
    }
})
router.post('/test_upload_file_merge', function (req, res) {

    var name = req.body.filename;
    var total = req.body.total;
    var uuid = req.body.uuid;
    console.log(name ,total  , uuid);

    if( name && total && uuid){
        try{
            var root_dir = "d:\\server_picture";
            var temp_dir = path.join(root_dir, uuid);
            var save_image = path.join(root_dir, name);
            if(fs.existsSync(save_image)){
                fs.unlinkSync(save_image);
            }
            var buffer = '';
            for(var i=0;i<total;i++){
                var index = i + 1;
                var temp_name = `${uuid}_${index}`;
                var temp_file = path.join(temp_dir, temp_name);

                if(fs.existsSync(temp_file)){
                    console.log(`merge ${i+1}/${total}`)
                    var s_buffer = fs.readFileSync(temp_file);
                    buffer += s_buffer;
                }
            }
            console.log(buffer.length)
            fs.appendFileSync(save_image, buffer);
            console.log(save_image)
            res.send({ 'type': 'AJAX', 'msg': 'ok', body: req.body });
        }catch (err){
            console.log(err)
            res.send({ 'type': 'ERROR', 'msg': err.stack });
        }
    }
    else{
        res.send({ 'type': 'ERROR', 'msg': ' name && total && uuid error' });
    }
})

var server = router.listen(8090, function () {

    var host = server.address().address
    var port = server.address().port

    console.log("the local server http://%s:%s", host, port)
})

　　

var path = require('path')
var fs = require('fs')
var ini = require('ini')
//var OSS = require('ali-oss').Wrapper;  version  4.5.1
var OSS = require('ali-oss'); //6.0.1
var request = require('request')
var request_progress = require('request-progress')
var uuid = require('node-uuid')

var url = 'http://127.0.0.1:8090/test_upload_file_parts';
var merge_url = 'http://127.0.0.1:8090/test_upload_file_merge';
var filepath = 'D:\\pps.jpg';
var filename = 'pps.jpg';

var props = {};

props._post = function(_url, _params){
    return new Promise(function(resolve, reject){
        request({
            url: _url,
            method: "POST",
            json: true,
            timeout: 20000,
            headers: {
                "content-type": "image/jpeg"
            },
            body: _params
        }, function(error, response, body){
            if (!error && response.statusCode == 200) {
                resolve({'type':'AJAX'})
            } else {
                resolve({'type':'ERROR'})
            }
        })
    })
}

props.uploadFileParts = async function(_url, _filepath, _filename, _progress_fn){
    var buffer = fs.readFileSync(_filepath);
    var total_size = buffer.length;
    var shardSize = 120400; // 120kb一个分片
    var shardCount = Math.ceil(total_size/shardSize);

    var _guid = uuid.v1();

    _progress_fn(0);
    for(var i=0;i<shardCount;i++) {
        var start = i * shardSize;
        var end = Math.min(start + shardSize, total_size);
        var params = {
            buffer: buffer.slice(start, end),
            filename: _filename,
            total: shardCount,
            index: (1 + i),
            'uuid': _guid
        }

        var hr = await this._post(_url, params);
        if (hr.type == 'AJAX') {
            _progress_fn(i / shardCount);
        } else {
            return {error: `upload part error`, errorCode: -1};
        }
    }
    var datas = {
        filename: _filename,
        total: shardCount,
        'uuid': _guid
    }
    //merge
    var hr = await this._post(merge_url, datas);
    if(hr.type == 'AJAX'){
        return {error: null, errorCode: 200};
        _progress_fn(1);
    }else{
        return {error: `upload parts merge error`, errorCode: -2};
    }
}

props.uploadFileParts(url,filepath, filename, function (progress) {
    console.log(progress);
})
/*
 return new Promise((resolve, reject) => {
 yq.http.post(url, data, function(res){
 resolve(res);
 }, function (err) {
 resolve(null);
 })
 })
 */


module.exports = props;

 

转载于:https://www.cnblogs.com/mypsq/p/9733064.html