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elementUI上传文件中途，离开当前页面，如何终止请求？

elementUI上传文件中途，离开当前页面，如何终止请求？...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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spring boot data jpa EntityExistsException

我用spring data jpa 写了两个多对多关系的实体Role和Permission，想在关系表里添加一些额外的字段，参考了这篇文章：JAP多对多最佳实践一下时代码： Role 实体类 @Setter @Getter @AllArgsConstructor ... save()的动作，注释掉其中任何一个依然会报异常麻烦大家帮忙看看，谢谢了 ...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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redis 队列四万条数据，while循环跑阿里接口，512M内存溢出

// 这是定时任务入口 public function start(){ $redis = Cache::handler(); // ... 这里省略了写入队列的过程，监控的时候发现这个过程都是正常的 //就是在 sendPush 大概 ... " . join(',',$c1) . " 队列跳过 : $c2 , form_id无效 : $c3"); }...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How can i add widget or loop the code below for Woocommerce api in categories products with flutter dart?

Future fetchCategoryDetails(Category category) async { //fetch sub categories List<dynamic> data = await wooCommerceAPI .getAsync( ... i really dont understand i m so sorry. Thanks...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Odoo11: Create module inside addons not showing and left sidebar odoo not showing on my custom app

I have two question. I've tried to create a new addon inside main addon (path: odoo10.0/server/addons) but it ... so far there's no good documention I could possibly understand....

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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微信支付同一个订单怎么样在小程序和JSAPI都能支付

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asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Electron打包出错Can't locate Mac/Memory.pm in @INC

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asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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data must be a remote dolphindb table or dict or DataFrame

请问一下如下图所示这个报错是什么原因呀?...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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有三十多个详情页面，导航和页脚是一样的，中间内容全是图片，怎么快速快捷完成呢？

如题，有什么方法吗？感谢...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - How to merge two dataframes with multiple element from one column

I try to merge a new dataframe based on a dataframe composed by element and a other dataframe with unique dataframe. The dataframe1 : col1 ... A3 A9 WC 5 A2,A9,A3 A3 DA 6 A3 A3 DA...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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在main.js中引入assets中的样式文件失败是为什么？应该如何解决？

如截图所示，一直引入失败。应该如何解决？求指教...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - I can't share variables between two repositories using mvvm

I need to share two variables between two repositories. I've already tried many different solutions, but ... ForecastRepository(); mForecastData = mForecastRepository.testCall(); }...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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vue路由根据#后面的url显示对应的菜单

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asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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reactjs - How to avoid using relative path imports (/../../../redux/action/action1) in create-react-app

I've been using create-react-app package for creating a react website. I was using relative paths throughout my app ... /action' or import action from '@resource/css/style.css'...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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全局变量的值 - 修改问题。

【情况】我定义了一个全局变量k → 在main函数中，令k=1 → 在被调函数中，令k=0（main是先令k=1，再调用的函数） → 最后cout<<k，k=0 我定义了一个全局变量i → 在main的for循环中 - for(i= ... 当被调函数的for循环修改为 - for（int i=0；...）结果对了【疑惑】 Q：为什么会发生这种情况？...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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hbuilder Ctrl+H 设置排除搜索

hbuiler Ctrl+H 搜索默认是搜索 . ,如果设置搜素.但是排除*.mp4...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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有外键指向自身的表如何插入第一条数据

有外键指向自身的表如何插入第一条数据...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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用vscode romote-ssh连服务器的时候，.bashrc里的环境变量删不掉怎么办？

是这样的，我用vscode romote-ssh连服务器的时候，在我的.bashrc文件里新增了一个环境变量，后来又不想要了，就把那行给注释掉了但是重新用remote-ssh连接服务器的时候，echo这个变量的时候发现这个变量还在，但是.bahsrc ... 存了呀？有人遇到这种情况吗？怎么办呢？这搞得我现在还得专门再开一个另外的ssh客户端，太痛苦了！...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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github - How to remove local untracked files from the current Git branch using Windows Command prompt

:git status On branch main Your branch is up to date with 'origin/main'. Untracked files: (use "git add ..." to ... commit but untracked files present (use "git add" to track) :...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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php socket 设置超时时间无效，还是要等好久才能返回错误？

public function terminal_status($ip) { try { $port = 80; if (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6)) { //IPv6 $socket = socket_create( ... 烦问下有没有更好的处理办法，或者我这么写为啥不行？...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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nodejs 中的 {} 和浏览器控制台中的 {} 返回不同

同样是 [] + {} 浏览器和 Nodejs 的返回值不同...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - I want to do a task if a specific option of arraylist is clicked

I want to do something when a specific part of the array list is clicked. I added the list on bind view holder ... something on the subject list if a specific class was selected....

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Micorosft Access SQL - Counting Number of foreign key records across 3 related tables

I am experienced at VBA but new to SQL. I am developing a test sheet program in MS Access for the plant that I ... for your time, I am happy to provide more information if needed....

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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需要获取一个物联设备的二进制数据，请问用netty如何实现

如题。我需要向一个RFID标签发送一段请求帧，然后标签会返还一个响应帧，通过返回的响应帧来获取数据。但是RFID仅支持原生的二进制数据传输，而netty是需要用ByteBuf进行封装的。请问netty有办法支持这样的数据传输吗。传输的方式是TCP/IP...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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react-native中SectionList设置getItemLayout导致上滑没有加载？

getItemLayout={(data, index) => { console.log('_getLen getItemLayout', {index}); const len = this._getLen(index); return { length: len. ... v... 我的每一行长度是可以计算出来的，通过 this._getLen,...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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219 views

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How to insert/create stored procedures in mySQL from PHP?

I've got a number of stored procedures made with the MySQL Workbench. They work just fine when use MySQL workbench ... same connection, created users, inserted tables and so on)....

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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新建web项目创建servlet之后,访问不到这个servlet ,

启动项目没有报错,访问这个servlet之后提醒java.lang.ClassNotFoundException: 但是实际上,项目里面有这个servlet文件 web.xml里面配置的class路径也应该没有问题 jdk 是1.8的,tomcat是8.5的这个平时公司的项目也是这个,应该没问题呀,不知道为什么我自己建个项目就会找不到呢...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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pyspark无法关闭

问题描述 pyspark无法关闭，调用stop也无法关闭,请问是什么原因呢如下...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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