Question

我在Node中创建了一个函数，用于将本地存储映像保存到我服务器上的本地文件中。它似乎在我的本地工作正常，但现在我已经上传到服务器，我似乎一直在收到错误。

在我的控制台中，我获得了一些控制台日志，我已添加它以帮助我调试，到目前为止我的控制台上写着：

请求

测试1功能已启动

测试1功能结束

保存照片功能base64 start

保存照片功能启动if else

错误保存照片

无论我改变什么，我都会得到error saving photo

任何人都可以在我的代码中看到为什么我一直收到此错误？任何帮助都非常感谢我已经在这个错误数小时了。

完整代码

app.post('/mm3/back-end/savePhoto', function (req, res) {
    console.log('test 1 function started');
    var folder = Math.random().toString(36).substr(2, 20);
    var photos = req.body;
    var counts = 0;
    console.log('test 1 function ended');

    var callback = function(counts){
        console.log('start if else');
        if(counts < photos.length){
            saveBase64(photos[counts],folder,counts,callback);
            console.log('test if line');
        }else{
            var counts = 0;
            var response = {"folder":folder, "photos": photos.length};
            console.log('test else line');
            res.send(response)
        }
        console.log('end of function');
    };
    saveBase64(photos[counts],folder,counts,callback);
});

app.post('/mm3/downloadZip', function(req, res){
    console.log('test zip file started');
    var photos = req.body;
    var out =  photos[0];
    var test = out.split('/');
    var loc  = test.pop();
    var end =  test.join('/');
    console.log('test 3 function Generate zip file');
    console.log(end);
    var outName = '/' + end +'/mm3/MockUp.zip';
    var output = fs.createWriteStream(outName);
    var archive = archiver('zip', {store: true });
    var zip = function(photos, f){
        for(var t = 0; t < photos.length; t++){
            var file = 'mockUp'+ t +'.jpg';
            var from = '/var/www/html' +  photos[t];
            archive.file( from, { name: file });
        }
        f();
    };

    output.on('close', function() {
        var photos = req.body;
        var out =  photos[0];
        var test = out.split('/');
        var loc  = test.pop();
        var end =  test.join('/');
        res.send(end + '/MockUp.zip');
        console.log('archiver has been finalized and the output file descriptor has closed.');
    });
    archive.on('error', function(err) {
        throw err;
    });

    archive.pipe(output);
    zip(photos, f);
    function f(){
        archive.finalize();
    }
});

function saveBase64(photo,folder, counts, callback){
    console.log('save photo function base64 start');
    var result = photo.split(',')[1];
    var path = '/mm3/tmp/' + folder;
    var filename = path + "/out"+ counts + ".png";
    mkdirp( path, function() {

        fs.writeFile(filename, result, 'base64', function(error){
            console.log('save photo function start if else');
            if (error) {
                console.log('error saving photo');
            }else{
                console.log('photo saved');
                counts ++;
                callback(counts);
            }
        });
    });
}

更新：

我现在正在

错误：请求实体太大在readStream（/var/www/html/mm3/node_modules/raw-body/index.js:196:17） at getRawBody（/var/www/html/mm3/node_modules/raw-body/index.js:106:12）在阅读（/var/www/html/mm3/node_modules/body-parser/lib/read.js:76:3）在Layer.jsonParser [作为句柄]（/var/www/html/mm3/node_modules/body-parser/lib/types/json.js:127:5）在trim_prefix（/var/www/html/mm3/node_modules/express/lib/router/index.js:226:17） at /var/www/html/mm3/node_modules/express/lib/router/index.js:198:9 在Function.proto.process_params（/var/www/html/mm3/node_modules/express/lib/router/index.js:251:12）在下一个（/var/www/html/mm3/node_modules/express/lib/router/index.js:189:19）在Layer.expressInit [作为句柄]（/var/www/html/mm3/node_modules/express/lib/middleware/init.js:23:5）在trim_prefix（/var/www/html/mm3/node_modules/express/lib/router/index.js:226:17） at /var/www/html/mm3/node_modules/express/lib/router/index.js:198:9 在Function.proto.process_params（/var/www/html/mm3/node_modules/express/lib/router/index.js:251:12）在下一个（/var/www/html/mm3/node_modules/express/lib/router/index.js:189:19）在Layer.query [作为句柄]（/var/www/html/mm3/node_modules/express/lib/middleware/query.js:37:5）在trim_prefix（/var/www/html/mm3/node_modules/express/lib/router/index.js:226:17） at /var/www/html/mm3/node_modules/express/lib/router/index.js:198:9 在Function.proto.process_params（/var/www/html/mm3/node_modules/express/lib/router/index.js:251:12）在下一个（/var/www/html/mm3/node_modules/express/lib/router/index.js:189:19）在Function.proto.handle（/var/www/html/mm3/node_modules/express/lib/router/index.js:234:5）在Function.app.handle（/var/www/html/mm3/node_modules/express/lib/application.js:119:16）在Server.app（/var/www/html/mm3/node_modules/express/lib/express.js:28:9）在emitTwo（events.js：87：13）

节点js将本地存储映像保存到服务器

0 个答案: