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使用可选过滤器生成规范

LoginService public List<Login> getLogins(Optional<String> attr1, Optional<String> attr2, Optional<String> attr3) { Specification<Login> loginSpecs; // Doesn't

如何正确关闭JMS连接

I have the following piece of code to poll my Dead Letter Queue in JMS. Message m = mconsumer.receive(3000L); while (m != null) { try { sendMessageToDB(m); } catch

单击GWT站点上未触发的事件

I am attempting to automate testing on the client side of a GWT built site. I have been able to run through all the DOM elements and find the span element which is clickable I tried the click() method

变换逻辑-信息学到蜂箱

For a column I need to convert the informatica logic To_date($$RUN_DATE,'yyyy-mm-dd') to hive. I guess the same will work for hive as well ? Pleae let me know if any other approach.

Python Velyon的建立

MacOSX: 10.12.6 Iterm2:bash shell Vagrant 2.0.2 ansible version: 2.4.3.0 pip version: 10.0.1 from /usr/local/lib/python2.7/site-packages/pip (python 2.7) pyenv version: 1.2.3 Python versions:

安装Python PIP的错误

after install python-pip using "$ sudo apt-get install python-pip" when i check version "$ pip -V" showing error "bash: /usr/local/bin/pip: No such file or directory " can anyone help please???

如何在Java中解析XML对象

I'm trying to parse a string object that carries simple XML. I have parsed XML files at the past but I can't use the code because it refers to files and not strings- please review the code I used for

索引错误:

I have created a function where I need to pass data frame I get shape and return me df.head() def shape_of_df(df): tup = df.shape print('Shape of df is Rows :{0[0]},column:{0[1]}

在Android工作室访问相机之前,我需要按下两次按钮。

I'm currently working on an Android app that allows me to access the camera and upon clicking one button, I switch to the front cam. I click another button, I go back to the rear cam. However, I'm

塞茨克罗利

Im doing an calendar apps, i wish to scroll my scrollview in the fragment to a specific Y-position as presenting the current time, i tried this code in an ACTIVITY, it successes, but it is not working

离子3文件上传上载对象对象

I used below code for file upload to server in ionic 3 getImage() { const options: CameraOptions = { quality: 100, destinationType: this.camera.

如何保存和恢复TF-估计器模型

I would like to save and restor my tf.estimator model. Although I tried to follow other related issues on stackoverflow, I could not be successful. The following input_fn can provide the data to be

PyQT5,如何使用数据库服务器建立连接检查

I have used Qt designer to create two different windows, Login_ui.py and Register_ui.py. Here is the python scripts for the window. Then i created APP.py file as main and DB.py for database. How

将长URL转换为TyyURL

I am trying to solve the following problem: https://leetcode.com/problems/encode-and-decode-tinyurl/description/ I went through a couple of answers on SO, as well as other forums online. I am

如何利用Gradle构建工件版本

When using Maven, it's easy to look up latest version of SNAPSHOT artifact by going to parent's pom.xml: https://github.com/apache/maven-compiler-plugin/blob/master/pom.xml#L33 But where do I look

警告:FoO的数据已经达到0.0323 GB的每日上限和收集您的应用程序

I've been getting these alerts lately, however if I search events in my Application Insights account, I only have 5 events in the last 24 hours, and 7 events in the last 48 hours. The largest event

Python不是.LIB

I think I have built it properly. I have other boost libraries working. The error : SNK1104 cannot open file 'boost_pythonPY_MAJOR_VERSIONPY_MINOR_VERSION-vc141-mt-x32-1_67.lib'. I'm not entirely

从弹出式弹出窗口访问属性

I have a page with several buttons that all open the same modal using Magnific Popup. However I need to customize the popup for each button according to the calling button's data- attributes. So I

如何盘旋盘旋

I'm trying to achieve this look like on hover below. When I hover on text or a block, then should I have a look like this. How I can do this? I couldn't find any example with style like this. Below I

使用代理后在下载服务器上获得404

i have a website, Where i provide downloads to my users from my file servers. First of all, i am not experienced in coding at all, so forgive my ignorance. I am using this form element to get

如何对RNN进行正确的数据缩放

I have recently completed a course on Neural Networks/Deep Learning and have completed some projects successfully. I am now looking at using RNN's to look at making fantasy football predictions. I

脸谱网或谷歌登录CordoVA应用程序等待2分钟后返回结果

I am kind of stuck and looking for ideas how to solve this problem: My app is in ionic v1, (ionic 1.3.4), with cordova 8.0.0 . For social login I am using facebook cordova-plugin-facebook4 (v 2.1.0)

如何在单击注销后知道用户是否到达登录页面?丹戈

I am using the django's built-in auth module for user authentication. urls.py url(r'^accounts/logout/', auth_views.logout, kwargs={'next_page': reverse_lazy('login')}), url(r'^accounts/login/',

GATLIN:转换响应并使用ReGEX/JJSONPATH验证响应

I have a situation where my response is encrypted. In order to decrypt it, I need to get hold of the session because there are some variables on the session that are needed to decrypt. So far I have

暹罗图像相似性网络

Where can I find details to implement siamese networks to perform image similarity and to retrieve the most similar image from a dataset It is difficult to get a large number of image data for all

游戏人生的C代码。我不

This is the description of the question: Every cell interacts with its eight neighbours, which are the cells that are horizontally, vertically, or diagonally adjacent. At each step in time, the

警告:使用版本为0.0.172的JavaFX运行时,使用版本为0.0.1的JavaFX API加载FXML文档

Please help! I am newbie to JavaFx I got this error when trying to set setScene *.fxml file javafx.fxml.FXMLLoader$ValueElement processValue WARNING: Loading FXML document with JavaFX API of version

不带python的Python游戏实时评分系统

I'm trying to add a real time scoring system to my Python game. But, it writes the new score over the old score. It means that 1 is written over 0; 2 over 1, etc. Do not suggest solutions that

发送后消息WMYKEYDOWT/No.NotoPad编辑控件与VKYF5一起工作,但不使用普通字母

I am trying to send WM_KEYDOWN and WM_KEYUP to notepad's edit control. The following example works, if I send a VK_F5: Notepad inserts the current date and time. However, If I try to send a simple h,

用Selenium WebDriver滚动到元素

I want to create a function that takes the class name as a parameter. This method tries to click on the element. If it fails, it scrolls to the element and tries to click again. That’s it! I want

TCPDUMP创建僵尸进程

all, I run tcpdump continuously with -z option (makes tcpdump run " command file " where file is the savefile being closed after each rotation) this way: tcpdump -G 1 -w /tmp/%Y-%m-%d_%H:%M:%S.pcap

MeviePy-带有文本剪辑的CypIdVistIOclipse错误

I am trying to add text to a clip generated by concatenate_videoclips, but I keep getting an error. I have tried to add the text to each clip individually and then concatenate, but I got the same

我想用JavaScript创建一个图像滑块

I'm using ratchet websocket for my real time project. Its running without any problem. Recently I found that when multiple concurrent users connect to the websocket port to establish connections, it

通过亚马逊苏美尔探测阿尔科雷现有3D对象

I'm having issues interacting with a 3D object on a mobile app using ARCore and AWS Sumerian. Even when tapping the object on the mobile app, the 3D object does not respond. My phone is on the

如何将MySQL中的行转换为列?

I have three table (student's_info,subject and marks): this is table student's_info: ---------------- |s_id | s_name | ---------------- | 1 | Ali | | 2 | Jon | --------------- This is

从文件读取内容时分割错误

I am reading all files in a directory. Following is my code: DIR* FD; struct dirent* in_file; FILE *common_file; char *c; FILE *entry_file; char buffer[1024]; if (NULL == (FD =

如何在Linux环境下安装PYHS2?

I use "sudo pip3 install pyhs2", but it’s not working. It show this error like as picture. In this situation how can i install "pyhs2" library in my linux environment enter image description here

在那里我可以找到好的教程来使用Django构建CMS

I finished couple of tutoials about django framework. Where can I find good place for tutoruals the teach me how to build cms using django from scratch.

用于数字的最佳数据类型是什么?

Good day what is the best data type and length to use for numbers the data format is like this 2018/06/03,15:06:59,1,25.01,0.879,2.75,2.49,1,0,0,0,0,0,0,0,0,0,0,0,0,27.94,2.2.2,-250.00,key,0,0,0 ,

Android工作室没有显示带有摇动的LogCAT

I am using Android Studio for Flutter App Development. Everything seems to be working fine just that the Android Studio does not show the "logs" in Logcat. In the Logcat section it says "Please

调音dih阿帕奇索尔

can we increase the Apache solr performance for importing data from mysql with dataimport ? currently i am using : 4 core processor RAM 16 GB HDD 50 GB mysql record 1,2 Millions for now i get 20

为什么多个并发握手到WebSoC会减缓连接?

I'm using ratchet websocket for my real time project. Its running without any problem. Recently I found that when multiple concurrent users connect to the websocket port to establish connections, it

库存转移和收据中的JavaScript问题

i have added a new unbound field to display image of Inventory Item in Transaction Details tab, then to set the fixed height of the image I have added some javascript, but after adding javascript the

使用FADELAR()和Sql()的奇怪正则表达式问题

I'm trying to use \w{2}\d/\d{1,2}(/\d{1,2})? to match below two interfaces on a Cisco switch: Gi1/0/1 Fa0/1 When I use re.search(), it returns me the expected output I want. import re port = "Gi1/

如何在Redux Saga中传递API调用的参数

I am currently trying to learn how to use Redux-Saga by making simply API calls to the Pokemon API, however; I want to be able to search by a certain Pokemon. I am using React to search for a Pokemon

RXjava/RxAndroid中的发布主题导致错误崩溃并跳过下一步

I have a code like this: Process X: getLocationObservable() // ---> async operation that fetches the location. // Once location is found(or failed to find) it sends it to this filter :

Internet连接更改时自动重新加载WebVIEW

When connection get back I want to run this task, I want to call NewortchangeReceiver() constructor. I wrote "android.net.conn.CONNECTIVITY_CHANGE" in Mainactivity IntentFilter because "android.net.

不能得到逻辑

I am actually not getting what logic should I put in to get what I desire. I actually want to halv the third column and also find the mid of class interval in my second colmn and print subsequently.

颤动:初始化器中的条件

In most languages I can have a conditional like a switch block in a constructor to decide on what arguments to pass to the super constructor. How to do that in Dart? My use case is passing a map to my

如何使用查找异步方法并在ASP.NET核心通用存储库中包含在一起?

I Want to Find Id Use Find Async And Includes together Instead of Code below With Generic Repository? Old Code public async Task<IActionResult> Delete(int? id) { if (id == null)

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