Question

即使在添加本机承诺之后，这仍是在保存时仍会抛出的错误。

（node：5604）DeprecationWarning：不推荐使用Mongoose：mpromise（mongoose的默认承诺库），而是插入自己的promise库：http://mongoosejs.com/docs/promises.html

mongoose.Promise = global.Promise;
mongoose.connect('mongodb://127.0.0.1/optimusCP')
    .then(function () {
        console.log('Connected to MONGOD !!');
    }).catch(function (err) {
        console.log('Failed to establish connection with MONGOD !!');
        console.log(err.message);
    });

我试过蓝鸟和蓝鸟q，仍然没有找到解决方案。下面是我保存时的代码，显示以下弃用警告..

var user = new User();
        user.email = req.body.email;
        user.password = hash;
        user.save()
            .then(function (user) {
                console.log(user);
            })
            .catch(function (err) {
                console.log(err);
            });

这个错误发生在mongoose的新版本4.8.1，但在4.7.6 mongoose版本上运行正常。

Answer 1

尽管在Dim objTableLogonInfo As CrystalDecisions.Shared.TableLogOnInfo '\ Report objects Dim objDatabaseTable As CrystalDecisions.CrystalReports.Engine.Table Dim objCrSection As CrystalDecisions.CrystalReports.Engine.Section Dim objCrReportObject As CrystalDecisions.CrystalReports.Engine.ReportObject Dim objCrSubreportObject As CrystalDecisions.CrystalReports.Engine.SubreportObject Dim objCrSubreport As CrystalDecisions.CrystalReports.Engine.ReportDocument '\ Call you code to get the connection info from the INI or txt file objTableLogonInfo = New CrystalDecisions.Shared.TableLogOnInfo objTableLogonInfo.ConnectionInfo.UserID = "UserID " ' UserIDFromFile objTableLogonInfo.ConnectionInfo.Password = "Password " ' PasswordFromFile objTableLogonInfo.ConnectionInfo.ServerName = "ServerName " ' ServerNameFromFile objTableLogonInfo.ConnectionInfo.DatabaseName = "DatabaseName " ' DatabaseNameFromFile '\ Loop through the tables in the database and set the connection properties of each For Each objDatabaseTable In pCrystalReport.Database.Tables objDatabaseTable.ApplyLogOnInfo(objTableLogonInfo) Next objDatabaseTable '\ Now do the same for the subreports(if any) '\ Loop through the sections in the report For Each objCrSection In pCrystalReport.ReportDefinition.Sections '\ Loop through the collection For Each objCrReportObject In objCrSection.ReportObjects '\ If the report object is a subreport If objCrReportObject.Kind = CrystalDecisions.Shared.ReportObjectKind.SubreportObject Then '\ Get a reference to it objCrSubreportObject = objCrReportObject '\ Open it objCrSubreport = objCrSubreportObject.OpenSubreport(objCrSubreportObject.SubreportName) '\ Set logon info for each table in the subreport For Each objDatabaseTable In objCrSubreport.Database.Tables objDatabaseTable.ApplyLogOnInfo(objTableLogonInfo) Next objDatabaseTable End If Next objCrReportObject Next objCrSection End Sub之前使用mongoose.Promise = global.Promise;，但我也有同样的警告。

我发现，我在一个文件中初始化了mongoose连接：

mongoose.connect(...)

但是我也在另一个文件中引入了import mongoose from 'mongoose'; ... // Connect to MongoDB mongoose.Promise = global.Promise; mongoose.connect(mongoUri, mongoOptions); mongoose.connection.on('error', (err) => { console.error(`MongoDB connection error: ${err}`); process.exit(1); });（描述了mongoose方案），所以我在第二个文件中添加了mongoose，因此警告消失了。

mongoose.Promise = global.Promise;

可能你也有同样的情况。

Answer 2

我用这个

成功摆脱了这个消息

int row = 0 , column = 0;
  if(inputFile.hasNextInt())
    row= inputFile.nextInt();
  if(inputFile.hasNextInt())
    column = inputFile.nextInt();
  int [][] array=new int [row][column];
  System.out.println("This array has "+row+" rows and "+column+" columns");
  for (int i=0;i<row; i++){
     for (int j=0; j<column; j++){
       if(inputFile.hasNextInt())
           array[i][j] = inputFile.nextInt();
       System.out.println(array[i][j]);
     }
  }

Answer 3

我使用bluebird来使用mongoose模型函数node v6.9.4：

的promise

mongoose.Promise = require('bluebird');

Answer 4

我和Mongoose 4.8.1有同样的问题，更新到4.9.1解决了我的问题。

猫鼬承诺错误

4 个答案: