1.安装monogoose

npm install mongoose -D

2.导入monogoose模块

var mongoose = require (' mongoose ');

3.连接数据库

mongoose.connect(' mongodb://主机名/数据库名称 ',( error ){   if( error ) throw error   console.log(' database connect success ')})

4.储存数据步骤

1.定一个Schema骨架

var schema = mongoose.Schema();var studentsSchema = new schema({  name:String,  age:Number,  set:String})

2.创建骨架模型

var studentsModel = mongoose.model(' students ',studentsSchema);  //students --集合名称

3.创建实例

var studentsInstance = new studentsModel();

接下来就是数据库的增删该查

增

studentsInstance.name = 'mogoose';studentsInstance.age = 18;studentsInstance.set = 'men';studentsInstance.save(( error )=>{   if( error ) throw error   console.log(' data save success ')})

删

studentsModel.find({ age:18 },( error,result )=>{   if( !error ){      let id = result[0]._id;      studentsModel.findByID(id,( error,docs ){  //docs -- 文档        if( !error ){          docs.remove(()=>{             console.log('delete data success')          })        }        else{          throw error        }      })   }   else{     throw error   }})

改

stuentsModel.find({name:'mogoose'},( error,res ){  if( !error ){    let id = res[0]._id;    studentsModel.findByID( id,(error,docs){      docs.name = adminMongo;        docs.save(( error )=>{          if( !error ){            console.log(' data updata success ')          }          else{            throw error          }        })    })  }  else{    throw error  }})

查

studentsModel.find({set:'men'},( error,data ){  if( !error ){    console.log(data);    console.log(' data find success ')  }  else{    throw error  }})