ExpressJS
Android
作为客户我想知道如何在server ::
中执行此操作假设我有一个listView
的大学名单,我会得到数据
这是JSON
使用下面显示的Express程序。
现在Android已经OnClick
用于识别该位置
listview
如何动态获取Android客户端的JSON(如果我点击 在一行中,我想在服务器上动态地进行数据库查询 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上
与android developers
或ExpressJS
合作的NodeJS
方
也会对此有一个想法
我需要在服务器上进行哪些代码更改?
我需要了解哪些概念才能实现此功能?
服务器上的My 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'));
});
希望我很清楚
谢谢,