javascript - 如何在 Express js 中显示每个 Evernote 笔记的标题？

Question

你知道如何在 Express js 中显示所有 Evernote 笔记的标题和内容吗？ https://github.com/evernote/evernote-sdk-js/blob/master/sample/express/routes/index.js https://github.com/evernote/evernote-sdk-js/blob/master/sample/express/views/index.jade

500 TypeError: C:\Users\lvcpp\Docs\evernote-sdk-js\sample\express\views\index.jade:31 29| li= session.notebooks[i].name 30| ul > 31| - for (var i = 0; i < session.notesMeta.length;++i) 32| li= session.notesMeta.notes[i].title 33| 34 小时| h2 当前状态无法读取未定义的属性“长度”

29| li= session.notebooks[i].name
30| ul
> 31| - for (var i = 0; i <session.notesMeta.length;++i)
32| li= session.notesMeta.notes[i].title
33|小时
34| h2 当前状态

Express js Web 应用程序:

//index.js:
...

exports.index = function(req, res) {
  if(req.session.oauthAccessToken) {
    var token = req.session.oauthAccessToken;
    var client = new Evernote.Client({
      token: token,
      sandbox: config.SANDBOX
    });
    var noteStore = client.getNoteStore();
    noteStore.listNotebooks(function(err, notebooks){
      req.session.notebooks = notebooks;
      res.render('index');
    });

    var notebook=noteStore.getDefaultNotebook(function (err, notebook){
      filter = new Evernote.NoteFilter();
      filter.notebookGuid = notebook.guid;
      resultSpec = new Evernote.NotesMetadataResultSpec();
      resultSpec.includeTitle=true;
      noteStore.findNotesMetadata(filter, 0, 100, resultSpec, function(err, notesMeta) {
        req.session.notes = notes;
        res.render('index');
        });
    });

  } else {
    res.render('index');
  }
};

//index.jade
...

ul
  - for (var i = 0; i < session.notebooks.length; ++i)
    li= session.notebooks[i].name
ul
  - for (var i = 0; i < session.notesMeta.length; ++i)
    li= session.notesMeta.notes[i].title

p.s. Thanks, @conch,
but unfortunately I get another error, after the fixes of code:

500 TypeError: C:\Users\lvcpp\Docs\evernote-sdk-js\sample\express\views\index.jade:31 29| li= session.notebooks[i].name 30| ul > 31| - for (var i = 0; i < session.notesMeta.notes.length; ++i) 32| li= session.notesMeta.notes[i].title 33| hr 34| h2 Current status Cannot read property 'notes' of undefined

29| li= session.notebooks[i].name
30| ul
> 31| - for (var i = 0; i < session.notesMeta.notes.length; ++i)
32| li= session.notesMeta.notes[i].title
33| hr
34| h2 Current status

我们需要在index.js中定义“notes”属性。

但是如何，或者我们真的需要它来处理吗？

在我的控制台 Nodejs 应用程序中，所有事情都可以在没有注释的特殊定义的情况下运行:

function showlistNotes() {
  filter = new Evernote.NoteFilter();
  resultSpec = new Evernote.NotesMetadataResultSpec();
  resultSpec.includeTitle=true;

  noteStore.findNotesMetadata(filter, 0, 100, resultSpec, function(err, notesMeta) {
    if (err) {
      console.error('err',err);
    }
    else {
      console.log("\nFound "+notesMeta.notes.length+" notes in all the notebooks:");

      for (var i in notesMeta.notes) {
          console.log(i+": "+notesMeta.notes[i].title);
      }

      console.log('\nGet the contents of the selected note (see full list of notes, from all your notebooks):\nPlease insert the number from 0 to  ' + notesMeta.notes.length );
      process.openStdin().addListener("data", function(d) {
        var a=d.toString().trim();
        noteStore.getNote(notesMeta.notes[a].guid, true, true, true, true, function(err, note) {
          console.log(err || ENML.PlainTextOfENML(note.content, note.resources)  );
        }); 
      }); 
    }
  });
}

Answer 1

失败是因为您的js文件在noteStore.findNotesMetadata的回调中设置了一个名为notes的 session 变量，但您的jade文件需要一个名为notesMeta的 session 变量。您的 jade 文件也存在索引错误(您不应该迭代 session.notesMeta，您应该迭代 session.notesMeta.notes)。

正确的代码:

index.js

noteStore.findNotesMetadata(filter, 0, 100, resultSpec, function(err, notesMeta) {
  req.session.notesMeta = notesMeta;
  res.render('index');
});

index.jade

ul
  - for (var i = 0; i < session.notesMeta.notes.length; ++i)
    li= session.notesMeta.notes[i].title