1
我们在循环中得到了相同的结果。如果任何人都能理解我犯错的地方，请告诉我。请参阅此截图以了解一个想法。在Javascript中，一次又一次显示相同的结果
我尝试警告很多地方，似乎一切都很好。但不知道为什么不能得到结果。执行“executeSql”不能正确使用循环中的多个值？
或者在选择查询中是否有任何错误？请让我知道为什么，这是造成这样的问题？
var db;
var shortName = 'WebSqlDB';
var version = '1.0';
var displayName = 'WebSqlDB';
var maxSize = 65535;
window.onload = function(){
document.addEventListener("deviceready",init,false);
}
function init(){
if (!window.openDatabase) {
alert('Databases are not supported in this browser.');
return;
}
db = openDatabase(shortName, version, displayName,maxSize);
db.transaction(function(tx){
tx.executeSql('DROP TABLE post_details',nullHandler,nullHandler);
tx.executeSql('CREATE TABLE IF NOT EXISTS post_details(UserId INTEGER NOT NULL PRIMARY KEY, post_title TEXT NOT NULL, post_date TEXT NOT NULL,post_comment TEXT NOT NULL,post_content TEXT NOT NULL, post_categories TEXT NOT NULL, post_image TEXT)',[],nullHandler,errorHandler);
},errorHandler,successCallBack);
if(checkConnection() != "No network connection"){
$.ajax({
url: 'http://www.foduu.com/api/get_recent_posts/?callback=?',
type: 'GET',
dataType: 'json',
success: function(data){
console.log(data);
var number_of_post = Object.keys(data.posts).length;
for(var i=0; i < number_of_post; i++){
var ptitle = data.posts[i].title;
var pdate = data.posts[i].date;
var pccount = data.posts[i].comment_count;
var pcontent = data.posts[i].content;
var pcategories = data.posts[i].categories;
var pimage = "my image";
//alert(ptitle +","+ pdate +","+ pccount+","+ pcategories +","+ pimage);
db.transaction(function(transaction) {
transaction.executeSql('INSERT INTO post_details(post_title,post_date,post_comment,post_content,post_categories,post_image) VALUES (?,?,?,?,?,?)',[ptitle,pdate,pccount,"pcontent",pcategories,pimage],nullHandler,errorHandler);
});
}
db.transaction(function(transaction) {
transaction.executeSql('SELECT * FROM post_details;', [],
function(transaction, result) {
$.each(result.rows,function(index){
var row = result.rows.item(index);
var post_single="<li class='post'>" +
"<a href='#' class='post_more'></a>" +
"<div class='post_right_reveal'>" +
"<h4><a href='#' onclick='swiperParent.swipeTo(4);'>"+ row['post_title'] +"</a></h4>" +
"</div>" +
"<div class='post_right_unreveal'>" +
"Posted in <a href='#'>blog category</a>" +
"<span class='post_comments'>25 Comments</span>" +
"<a href='#' class='post_readmore' onclick='swiperParent.swipeTo(4);'>read more</a>" +
"</div>" +
"<div class='post_left'>" +
"<span class='day'>7</span>" +
"<span class='month'>feb</span>" +
"</div>" +
"</li>";
$('#posts-all').append(post_single);
$('#posts-all').trigger('create');
});
});
},errorHandler,nullHandler);
},
error: function(data){
alert("Can Not Fetch data From server");
}
});
}
else
{
alert("No Internet Connection");
}
}
function checkConnection() {
var networkState = navigator.network.connection.type;
var states = {};
states[Connection.UNKNOWN] = 'Unknown connection';
states[Connection.ETHERNET] = 'Ethernet connection';
states[Connection.WIFI] = 'WiFi connection';
states[Connection.CELL_2G] = 'Cell 2G connection';
states[Connection.CELL_3G] = 'Cell 3G connection';
states[Connection.CELL_4G] = 'Cell 4G connection';
states[Connection.NONE] = 'No network connection';
return states[networkState];
}
function errorHandler(transaction, error) {
alert('Error: ' + error.message + ' code: ' + error.code);
}
function successCallBack() {
alert("DEBUGGING: success");
}
function nullHandler(){};
，是有什么办法可以加载我main.js之前所有其它JS或CSS文件的文件？
我试着执行多个executeSql它工作得很好。但是，当我在FOR循环中使用它时，它只是一次又一次地给我一个相同的标题。如果需要，我可以将代码放在github上供您试用。
预先感谢您！