首先是上传数据
记得在angularjs的controller中注入$http依赖
var data = {id: $scope.task_id,
groupId: $scope.task_groupid,
importance: $scope.priority_level,
classname:$scope.classname,
title: $scope.task_title,
date: $scope.todo_date,
detail: $scope.task_detail,
images:$scope.images_list,
name:$scope.name,
record:$scope.recordPath,
donedate:$scope.done_date}
$http({
method: 'POST',
url: 'http://localhost:3000',
params:{
'require': data
}
}).success(function(data,status,headers,config){
}).error(function(data,status,headers,config){
});
$http方法中的data参数，服务端没有接收成功
$http方法中的params参数，服务端接收成功
服务端接收方法是 url.parse(req.url, true).query.params
（params即是加在url?后的参数）
然后是下载数据
//刷新
$scope.refresh = function(){
$http.get("http://localhost:3000/refresh")
.success(function(data, status, headers, config) {
// this callback will be called asynchronously
// when the response is available
alert("success");
alert("["+data.substring(0,data.lastIndexOf(","))+"]");
TodoListService.deleteAndAddTask(JSON.parse("["+data.substring(0,data.lastIndexOf(","))+"]"));
TodoListService.findByGroupId($stateParams.groupId).then(function(todolists) {
$scope.todolists = todolists; //对应类别的所有数据list
});
})
.error(function(data, status, headers, config) {
// called asynchronously if an error occurs
// or server returns response with an error status.
alert("error "+data);
});
// .success(function(response) {
//
// console.log(response);
// alert(response);
// });
}
回调的success方法中返回的data数据，即为服务器response给客户端的数据 注意：返回的json字符串要保证符合json格式（一开始最外层没加中括号就会报错）
服务端代码
服务器端运行时只需要node serve.js即可，就启动了服务器，数据存储在TXT文档中。
var http = require('http');
var url = require('url');
var util = require('util');
var fs = require('fs');
http.createServer(function(req, res){
var urldata = req.url+"";
var require;
console.log('connet');
if(urldata.substring(1) == "refresh")
{
console.log("refresh");
require = "";
fs.readFile('writefile.txt','utf8', function(err, data) {
if (err) {
console.error(err);
} else {
console.log(data);
res.end(data+"");
}
});
}
else
{
console.log("add");
require = url.parse(req.url, true).query.require+",";
fs.open('writefile.txt', 'a', function opend(err, fd) {
if(err) {
console.error(err);
return;
}
var writeBuffer = new Buffer(require),
bufferPosition = 0,
bufferLength = writeBuffer.length,
filePosition = null;
fs.write(fd,
writeBuffer,
bufferPosition,
bufferLength,
filePosition,
function wrote(err,written){
if(err){throw err;}
//console.log(err);
});
});
}
}).listen(3000);
还有个问题
由于ionic有自己的服务用于启动项目，它启动了http://localhost:8100 的服务，而ionic项目访问服务器需要另外的端口
所以在电脑浏览器调试时会报错
XMLHttpRequest cannot load http://localhost:3000/refresh. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:8100' is therefore not allowed access.
需要让浏览器忽略跨域问题就行了，可以干脆关闭所有安全策略，当然浏览器会提示你稳定性和安全性降低 如果不想每次启动都用命令行，也可以把启动参数添加到浏览器快捷方式里：右键点击Chrome图标，在“快捷方法”标签页的“目标”一栏添加启动参数到末尾即可（先留一个空格）
Codes
http://download.csdn.net/detail/superjunjin/8487079
references
ionic项目之上传下载数据 - superjunjin的专栏 - 博客频道 - CSDN.NET
Cordova 3.x 实例开发 – 基于Ionic的Todo应用 - Fish Where The Fish Are - ITeye技术网站
effect
