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Java网站反应迟钝

Please I have a hosted java web application at sometime of the day it just get unresponsive, do I have to always restart the tomcat server for it to always remain responsive or should I increase my

AWAlambda JavaScript SDK当我在IAM SDK中出错时,回调设置为未定义

AWS Lambda Javascript SDK when I get an error with the IAM SDK the callback is set to undefined. When there is an error with the iam.listAttachedUserPolices call I get an error with the callback. If

如何在中间用逗号匹配具有逗号的字符串

I want to try a regex to match my string of this kind like if (cadena.matches("[0-9],[0-9]")){ Do something} //this being like if the string has numbers before and after the comma wich way can

Culjress Java互操作JavaCass.类

I am using a Java library that frequently references as method arguments JavaClassName.class. For example, it will require a call: document.get(TextAnnotation.class) I have tried a few ways to

COSCO2D编程如何解决屏幕分辨率?

If you have a cocos2d-x3.16,and use it to match VS15 with the development environment.Now that you have create a new project,and then in this project,you just have to do one simple thing:which is to

是否有人能够加载从Suth.js编辑器导出的模型?

I would like to prefaces this by stating that I am not a programmer however I am a designer and 3D artist who likes to dabble in code every-once-in-a-while. My basic question is if anyone has had any

加载静态内容慢

Feathers/Express is really slow to load static content. Is there any way to speed up without using Nginx? Each request to load an image takes about 3 seconds for a 200-300kb file on a ADSL connection

顺序循环如何比在GO中的并发方法更快?

Scenario: I want to read a large text file fast (e.g. lorem.txt with 200 lines in example below) . I have tried three different ways in code below Non-concurrent sequential processing Channels and

如何在没有相位跃变的情况下连接正弦波

I need to make a python script which generates sine waves of a given frequency and plays them using pyaudio (blocking mode), I also need to be able to change this frequency while it runs, modulate it

有谁能解释ZF表达式的第二约简规则吗?

[ e | v <- f:fs, q ] reduces to [ e | q ] [ v := f ] ++ [ e | v <- fs, q ] The output of [ e | v <- f:fs, q ] should be a single list. What does it mean to put two lists together in the

C.Cug()返回一个按月份分类的事件吗?

I have an Event model in Mongoose as such: let eventSchema = new Schema( { description: { type: String, required: true }, start_time: { type: Date, required: true }, end_time: { type:

JavaJava创建DATABODB表

I have been googling this for a while already but I did not get the answer. In my JUnit test I set up DynamoDBEmbedded instance and I want to create tables/load test data from JSON files. Thus I am

实现一个InFixPotoFixTM方法,但是DON

I didn't implement whole infixTopostFix method yet. but I have a question about it. I am figuring out it still. (notice: My infixToPostfix method is not complete yet) #include <stdio.h> #

简单的Express API错误

I keep receiving the following error when running my express API below shows the error i get in terminal, and have broken the code out in 3 blocks which will be three seperate sheets. if you could

两进程共享内存

I try to use CM Labs's math engine to build a heavy machine for another Virtual simulation software to use. So far I work on loading CM Labs's value like position/velocity or other values and try to

配置RSPEC以在轨道外使用测试数据库

I am creating a Ruby gem. I am not using Rails (inside of the gem). However, I am using ActiveRecord. I included Rspec and created some tests. But it is using the development database. And the reason

产品形象与A

this is a WordPress site using the Avada theme. So, most of the functionality was not coded by me. i am, although, always adding custom CSS to style things. so if you look at the page, http://new.

Hibernate,添加自定义COLUM类型UUID用于PASGRESS

I have a simple main class with no entity objects, plain SQL needing UUID as output. I get a mapping exception, to work around the mapping exception, I created my own custom dialect, even then the

在JavaScript中创建按钮元素

I'm trying to create a button element in javascript without using jQuery. I keep getting an error "Cannot read property 'appendChild' of null" when I try to append it to the DOM. I've looked

如何让我的烧瓶前端HTML从任何非静态目录读取图像URL?

I haven't seem to find this answer anywhere. What I want to do is in my flask front end html display images from any directory and in a way that is not relative to the static folder. So for example,

仅将对象3DS中包含的网格导出到GLTF中。

I've had a good hunt but can't find the solution: the GLTFExport for Three.js allows for specific objects to be exported when they're named in the exporter. My situation: I a random number of

函数程序库

Imagine you want to create a fp library. I know there are many but it's ok. Which way you would go. 1) create module and exports object with all the functions: Var fp = require (); fp.map, fp.

如何用PHP制作动态图像?

How i can make dynamic image with PHP? sometimes, There are web applications that provide a special feature to generate a picture and when pressed click to open the picture and have data. The data

将V-HTML渲染为VUE组件

I'm trying to create a VUE component preview (similar to JSFiddle/CodePen), in VUE. The VUE container that needs to show the end-user how a component looks like: <quickpreview v-html="code">&

如何使用JSON进行Python和JavaScript通信?

I follow the example in https://www.makeuseof.com/tag/python-javascript-communicate-json/. I have a file in HTML where I get the input from the front-end,which JavaScript file uses to process and

I have this dataframe gene_symbol<-c("DADA","SDAASD","SADDSD","SDADD","ASDAD","XCVXCVX","EQWESDA","DASDADS","SDASDASD","DADADASD","sdaadfd","DFSD","SADADDAD","SADDADADA","DADSADSASDWQ","SDADASDAD",

如何将下面的MATLAB代码循环转换成批处理形式?

I want to multiply many small matrices together on the GPU. First I initialize some dummy data and send it to the GPU: clear;clc; Num=50;%the array is NumxNum blocks SIZE=5;%each block is

如何实现UWP面板的非圆网格背景图像

One solution I found is to use an <Image> inside a <Grid>, as shown here Another way to add background image to Panel is <Grid.Background> <ImageBrush ImageSource="/

封装节点如何通过电子打包器进入ASAR存档?

How can I add node addon (which is used in renderer process!) into asar archive with electron-packager? Webpack generate files: ./dist bundle.js addon.node index.html main.css And

SQLAlchemy连接池如何与SQLite一起工作?

I’ve read from the docs and this SO answer that Session objects are thread-local, so you should only have one Session in each thread. You can create a Session object for each thread via sessionmaker

如何实现XML动态

just curious to how difficult it will be to make this into a dynamic xml file this is not all of the code just some for insight to what i am asking. thanks john $xmlFile ='FileZilla Server/

Django VUE JS

I'm currently Using django,highcharts, and JQuery to build a simple data visualization web app. I just moved from JQuery to Vue Js and I'm confused on how vue js to fetch JSON data from certain url.

WordPress的最小电子商务/购物车插件

My friend wants to add a simple shopping cart plugin for his wordpress site. He wants people to be able to add items from a page and then print out the order form or send electronically. But he doesn'

含噪数据集的三角形提取

I want to test ROPS(feature descriptor that is used in PCL library) method on noisy bologna dataset. I change x y z values by adding noises but I don't know how the new triangles are calculated.

为什么从Android作业调度程序调用Web服务时会遇到安全通道故障异常?

What could cause the exception Error: SecureChannelFailure when calling a web service from a scheduled background job? I've implemented a Job Scheduler for background sync with our servers. A call to

视图使用框架布局添加视图后布局不明确

I'm currently using xcode 9 and ios11.After I add a child view to the parent view (which uses autolayout to determine the frame), the child view receives a warning ambiguous layout.Why is there

试图在数据文件中找到一个列中的用户输入

import pandas as pd def author_search(): userInput = input('Enter a string: ').lower() result = [] with open ('file.txt','r') as f: for item in f: if userInput in ['

如何在Java流上进行3路过滤/分组

I have a Java list representation like below List representation of data [ { "type" : "Error", "name" : "xyz" }, { "type" : "Success", "name" : "abc" }, { "type" : "none", "name" : "prq"

为什么这一系列命令不工作

I am trying to create a command which copies current line to new tab, then breaks it at full stops (.), then adds a blank line below (at end of text) and finally goes to the beginning of the text (

使用C属性,如何触发函数在指定字段的改变时执行

I am currently developing a network Library for Unity as the one integrated is not quite what our game needs. Several things such as too much abstraction and many limitations forced us come up with

没有检测到SkpisteNoDout触摸

I am trying to implement a pause button in my game. However every time I tap the pause button (SKSpriteNode) on my iOS Device nothing happens. I have tried making the button do other actions and tried

禁用Navar不透明度转换

Parts of my navbar are static from page to page. For example, the Title is an Image component that gets displayed on every page. When clicking through from one page to another, the previous title

Python类属性可以作为装饰器吗?

Im trying to follow this Celery Based Background Tasks to create a celery settings for a simple application. In my task.py from celery import Celery def make_celery(app): celery = Celery(app.

使用CIN输入数组值

I am trying to take a variable use it for a size declarator into an array. I am having trouble getting the data into the array. What will happen then is that I will divide the array into an average

在房间数据库中使用同一个类创建两个表

I'm using Room as the database for the app. I`m fetching data from the server using Retrofit. the scenario is i have a class called Photo and annotated with Entity to be used by room, and im using

我能在PHPS风暴部署项目和本地主机之间切换吗?

I have successfully deployed a PHPStorm project to run on a remote server. But I now find I cannot run it on localhost. Is there a way of switching between the two?

构造函数和析构函数将从扩展类中工作

Im new to Programming and i have to basic questions. The first would be: I want to know if a destructor function will wait for a query from an extended class to run before executing. For example i

Github Jykyl如何使真实页面格式与预览相同

My github jekyll structure looks like next: after I enter _posts and create .md file, it looks like: We can see that the format is nice, such as it has syntax highlight. I called it preview page

在批处理文件的编码中,我试图做一些要求用户使用变量影响变量的事情。

I will show you the text of what I am trying to do echo A ring of sparks appears on echo the ceiling and you fly echo

Python如何用BS4解析HTML

<div class="stuff"> <div class="this">K/D</div> <div class="that">8.66</div> ( If not clear the two divs below the top div are its children ) I'm currently trying

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