IE 9开发人员工具说"未指定错误".在这行代码:
xmlhttp.setRequestHeader ("If-Modified-Since", "Sat 1 Jan 2005 00:00:00 GMT");
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我试图禁用Ajax请求的缓存,我无法控制服务器,我无法在每个请求的末尾附加一个唯一的ID,所以这看起来像我唯一的选择.任何想法为什么Javascript不喜欢它?
我正在使用Raphael JS矢量库,我无法得到一条线(路径),我正在绘制以改变颜色.希望这只是我做的蠢事.
var blue_one = paper.path ("M205 205L300 300");
blue_one.attr ("stroke-width", "3");
blue_one.attr ("fill", "#0000FF");
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我还尝试了填充值"#00F","蓝色","0000FF"和"00F".
我试图在MySQL表中插入一行并获取它的插入ID.我知道MySQL的last_insert_id()功能,我似乎无法让它工作.目前,我正在尝试使用注释为事务的函数,我只返回0.我使用的是Spring 3.1.
@Transactional (propagation = Propagation.REQUIRED, rollbackFor = Exception.class)
private long insertTransactionRecord
(
int custID,
int porID,
String date,
short crvID
) {
m_template.update ("INSERT INTO " +
" transaction " +
"( " +
" por_id, " +
" cust_id, " +
" trans_date, " +
" crv_id " +
") " +
"VALUES " +
"( " +
" ?, " +
" ?, " +
" ?, " +
" ? " +
")",
new …Run Code Online (Sandbox Code Playgroud) 我有这个PHP/HTML,用POST表单包装.如何仅将单击删除按钮的行的ID传递回服务器?
<table>
<tr>
<th>File Path</th>
<th>Expiration</th>
</tr>
<?php
$result = mysql_query ($list_query);
$row_count = mysql_numrows ($result);
for ($i = 0; $i < $row_count; $i++) {
$id = mysql_result ($result, $i, "id");
$path = mysql_result ($result, $i, "path");
$expiration = mysql_result ($result, $i, "expires");
?>
<tr>
<td width="60%">
<?php echo $path; ?>
</td>
<td>
<?php echo $expiration; ?>
</td>
<td>
<input type="submit" value="Delete Expiration" />
</td>
</tr>
<?php
}
?>
</table>
Run Code Online (Sandbox Code Playgroud) 我知道这个问题有答案,但他们并没有完全为我工作.我正在使用Angular 1.4和Express 4. Express正在处理API调用,而Angular应该处理所有HTML.
我的快递app.js:
var express = require('express');
var path = require('path');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
require('./routes/api')(app);
var app = express();
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, '../client')));
// This covers serving up the index page
app.use(express.static(path.join(__dirname, '../client/.tmp')));
app.use(express.static(path.join(__dirname, '../client/app')));
app.all('*', function(req, res) {
res.redirect('/index.html');
});
module.exports = app;
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这是angular app.js
angular
.module('punyioApp', [
'ngAnimate',
'ngAria',
'ngCookies',
'ngMessages',
'ngResource',
'ngRoute',
'ngSanitize',
'ngTouch'
])
.config(function ($routeProvider, $locationProvider) {
$routeProvider
.when('/', …Run Code Online (Sandbox Code Playgroud) 我有这段XML:
<mvc:interceptors>
<mvc:interceptor>
<mvc:mapping path="/statics/**" />
<bean class="com.company.website.servlet.StaticsHandlerInterceptor" />
</mvc:interceptor>
<mvc:interceptor>
<mvc:mapping path="/data/**" />
<bean class="com.company.website.servlet.AJAXHandlerInterceptor" />
</mvc:interceptor>
<mvc:interceptor>
<mvc:mapping path="/**" />
<bean class="com.company.website.servlet.PageHandlerInterceptor" />
</mvc:interceptor>
</mvc:interceptors>
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我有三个不同的拦截器是有原因的,虽然StaticsHandlerInterceptor只是preHandle返回的方法true(对于我所有的静态内容(js,css等)).第二个是AJAX请求.第三个是实际页面.我所看到的是静态和AJAX拦截器被调用时应该被调用; 但是,使用它们,总是会调用页面拦截器.我只想要为页面调用页面拦截器.我该如何做到这一点?
我正在寻找在AngularJS应用程序中从资源切换到restangular.我喜欢新模型,但我有一个问题.我无法弄清楚如何进行此API调用:
http://localhost:8000/api/entity/groups/1,2,3,4/events
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我有这样的代码:
var GroupService = ['Restangular', function (Restangular) {
var restAngular = Restangular.withConfig(function (Configurer) {
Configurer.setBaseUrl('/api/entity');
});
return {
getEvents: function (groupIds) {
return restAngular.all('groups', groupsIds).getList('events');
}
}
}];
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有没有办法要求一组组(多个组,而不是所有组),然后获取任何这些组的所有事件?
我有这个Javascript类:
function PageManager () {
this.timeoutHandler = function () {
alert ("hello");
}
this.startTimeout = function () {
this.timeout = setTimeout ("this.timeoutHandler()", 1000);
}
}
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当我打电话时,obj.startTimeout ();我收到此错误:
this.timeoutHandler is not a function
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如何在超时中调用类函数?
当然是一个愚蠢的问题,请原谅我.我的客户希望十进制数字以五位数显示.例如:100.34或37.459.我正在完成这个val.toPrecision (5);; 然而,当我的数字变得非常小时,我就会停止得到我想要的东西.例如,如果我的数字是0.000347,则显示0.00034700.现在,我理解为什么会这样做,但我不知道的是如何让它显示0.0003.有什么想法吗?
我是MySQL程序的新手.我只是试图在数据集上运行游标,并为每一行运行一个不同的过程(我碰巧知道一个工作).我在下面的第三行收到错误代码1064:
CREATE PROCEDURE `safecycle`.`sp_aggregateAllPORDaily` ()
BEGIN
DECLARE done INT DEFAULT FALSE;
DECLARE porID SMALLINT UNSIGNED;
DECLARE cur1 CURSOR FOR SELECT ID FROM point_of_recycle;
DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = TRUE;
OPEN cur1;
read_loop: LOOP
FETCH cur1 INTO porID;
IF done THEN
LEAVE read_loop;
END IF;
CALL sp_aggregatePORDaily(porID);
END LOOP;
CLOSE cur1;
END
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我一直把头靠在墙上一段时间,非常感谢一些帮助.
用PHP做了一段时间,请原谅我的无知.我有这个网页:
<?php
mysql_connect ("localhost", "user", "pass");
mysql_select_db ("expiration");
if (isset ($_REQUEST['new_expire']) && $_REQUEST['new_expire'] != "") {
$insert_query = "INSERT INTO files (path, expires) VALUES ('";
$insert_query .= $_REQUEST['new_path'];
$insert_query .= "', '";
$insert_query .= $_REQUEST['new_expire'];
$insert_query .= "');";
mysql_query ($insert_query);
}
?>
<html>
<head></head>
<body>
<?php echo print_r $_REQUEST; ?>
<form action="index.php" method="POST">
<p>Add New Expiration</p>
<table>
<tr>
<td align="right">
Select File:
</td>
<td>
<select id="new_path">
<?php $options = buildOptions (); echo $options; ?>
</select>
</td>
</tr>
<tr>
<td align="right"> …Run Code Online (Sandbox Code Playgroud) 我有这个表结构:
ID BIGINT IDENTITY(1,1)
deviceID BIGINT NOT NULL,
entryTime DATETIME2 NOT NULL,
value FLOAT,
PRIMARY KEY (ID),
UNIQUE KEY (deviceID, entryTime)
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我在这个表中有大约1500万行,我想用这个表中的聚合数据填充另一个表.我想将这些数据分组deviceID为一天大小的"桶",并获取当天值的最小值,最大值和平均值.知道我是怎么做到的吗?
我有这段简单的代码:
SimpleDateFormat sqlFormatter = new SimpleDateFormat ("YYYY-MM-dd HH:mm:ss");
String temp = "2012-03-09 12:00:00";
System.out.println (temp);
Date last = sqlFormatter.parse (temp);
System.out.println (last);
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我得到这个输出:
2012-03-09 12:00:00
Sun Jan 01 12:00:00 EST 2012
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我知道应该很简单,但我希望有人能够很快看到我所缺少的东西.
javascript ×5
java ×3
sql ×3
angularjs ×2
mysql ×2
php ×2
spring ×2
ajax ×1
express ×1
node.js ×1
raphael ×1
restangular ×1
spring-mvc ×1