我ExpressJS
在服务器和Android
客户端上使用
我想知道如何在服务器中执行此操作::
假设我有一个
listView
大学列表,我JSON
使用下面显示的 Express 程序获得数据。现在Android已经
OnClick
用于识别位置listview
如何动态获取android客户端的JSON(如果我点击一行,我想在服务器上动态进行数据库查询,以便动态生成JSON URL)
我没有发布 android 代码,因为我认为修改是在服务器端,但是
android developers
谁使用过ExpressJS
或者NodeJS
也会对此有想法
我需要在服务器上进行哪些代码更改?
我应该寻找什么概念来实现这个功能?
服务器上的我的 Express 程序 ::
var express = require('express')
, async = require('async')
, http = require('http')
, mysql = require('mysql');
var app = express();
var connection = mysql.createConnection({
host: 'localhost',
user: 'xxx',
password: "xxx",
database: 'collages'
});
connection.connect();
// all environments
app.set('port', process.env.PORT || 1232);
//
//REQUEST FOR FIRST REQUEST
//
app.get('/',function(request,response){
var name_of_Collages, RestaurantTimings;
async.series( [
// Get the first table contents
function ( callback ) {
connection.query('SELECT * FROM collagenames', function(err, rows, fields)
{
console.log('Connection result error '+err);
name_of_Collages = rows;
callback();
});
},
// Get the second table contents
function ( callback ) {
connection.query('SELECT * FROM RestaurantTimings', function(err, rows, fields)
{
console.log('Connection result error '+err);
RestaurantTimings = rows;
callback();
});
}
// Send the response
], function ( error, results ) {
response.json({
'Collages' : name_of_Collages,
'RestaurantTimings' : RestaurantTimings
});
} );
} );
//
//REQUEST FOR Collage SCREEN
//
app.get('/College1',function(request,response){
var College1, RestaurantTimings;
async.series( [
// Get the first table contents
function ( callback ) {
connection.query('SELECT * FROM College1', function(err, rows, fields)
{
console.log('Connection result error '+err);
College1 = rows;
callback();
});
},
// Get the second table contents
function ( callback ) {
connection.query('SELECT * FROM RestaurantTimings', function(err, rows, fields)
{
console.log('Connection result error '+err);
RestaurantTimings = rows;
callback();
});
}
// Send the response
], function ( error, results ) {
response.json({
'College' : College1,
'RestaurantTimings' : RestaurantTimings
});
} );
} );
http.createServer(app).listen(app.get('port'), function(){
console.log('Express server listening on port ' + app.get('port'));
});
希望我清楚
谢谢,