Question

首先，对不起我的英语。我想知道如何从angularjs获取数组数据，所以我可以用nodejs保存它。

这是我的angularjs脚本：

        angular.module('myAddList', [])
            .controller('myAddListController', function(){
                var addList = this;
                addList.lists = [];  

                addList.tambah = function(){
                    addList.lists.push({title:addList.listTitle,greet:addList.listGreet});
                    addList.listTitle = '', addList.listGreet = '';
                }

                addList.hapusList = function(list){
                    addList.lists.splice(addList.lists.indexOf(list), 1);
                }
            });

这是我的nodejs：

    var fs = require("fs");

    var d = new Date();

    var myJson = {title : {
          "lists": []
        }
    };

    function saveFile(){
        fs.writeFile( document.getElementById("namafile").value + ".json", JSON.stringify( myJson ), "utf8", function(err) {
            if(err) {
                return console.log(err);
            }else if(!err){
                console.log("The file was saved!");
            }
        }); 
    }

我认为“myJson”应该来自angularjs数组，即“addList.lists = [];”但我不知道该怎么做。或者也许有另一种方式？

- 编辑 -
我认为唯一的解决方案是将数组保存到localStorage并将其保存为json格式。但我有另一个问题，它取代所有空格到这个字符“\”它很烦人。

下面是以下代码（添加一些更改），假设我们已经将数组存储到localStorage并使用nodejs保存：

var fs = require("fs");
var myJson = {
    key: "myvalue"
};

var d = new Date();
var locS = localStorage.getItem("invoice");

function saveFile(){
    var nama = document.getElementById("namaFile").value;
    fs.writeFile( nama + ".json", JSON.stringify( locS ), "utf8", function(err) {
        if(err) {
            return console.log(err);
        }else if(!err){
            console.log("The file was saved!");
        }
    }); 
}
myJson = fs.readFile("undefined.json", "utf8", function (err,data) {
          if (err) {
            return console.log(err);
          }
          console.log(JSON.parse(data));
          console.log(data[2]);});

如果我运行此代码，它会给我一个很好的输出

 console.log(JSON.parse(data));

当我尝试这个时

 console.log(data[2]);

它给我“\”作为输出，顺便说一下这里是json文件

"{\"tax\":13,\"invoice_number\":10,\"customer_info\":{\"name\":\"Mr. John Doe\",\"web_link\":\"John Doe Designs Inc.\",\"address1\":\"1 Infinite Loop\",\"address2\":\"Cupertino, California, US\",\"postal\":\"90210\"},\"company_info\":{\"name\":\"Metaware Labs\",\"web_link\":\"www.metawarelabs.com\",\"address1\":\"123 Yonge Street\",\"address2\":\"Toronto, ON, Canada\",\"postal\":\"M5S 1B6\"},\"items\":[{\"qty\":10,\"description\":\"Gadget\",\"cost\":9.95,\"$$hashKey\":\"004\"}]}"

Answer 1

向你的nodejs服务器发出$ http请求，就像那样

 angular.module('myAddList', [])
            .controller('myAddListController', function($http){//inject $http
                var addList = this;
                addList.lists = [];  

                addList.tambah = function(){
                    addList.lists.push({title:addList.listTitle,greet:addList.listGreet});
                    addList.listTitle = '', addList.listGreet = '';
                }

                addList.hapusList = function(list){
                    addList.lists.splice(addList.lists.indexOf(list), 1);
                }
                $http.post('your server url',addList).success(function(successReponse){
                     //do stuff with response
                }, function(errorResponse){  
                    //do stuff with error repsonse
                }
            });

然后你必须拥有发布类型的请求的路由，然后在执行此路由请求的控制器中，你必须执行文件保存操作

从angularjs获取数组数据

1 个答案: