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Hot questions
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Spring Boot java.sql.SQLIntegrityConstraintViolationException: Cannot add or update a child row: a foreign key constraint fails
I've been getting this error and having a difficult time solving this issue. The decent amount of stackoverflow questions ... here is an image of the tables in my docker container...
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php - npm run dev not working after laravel/ui installation in laravel 8 app
I have installed laravel/ui in my laravel 8 app using composer require laravel/ui php artisan ui:auth php artisan ui ... resources/sass/app.scss', 'public/css') .sourceMaps();...
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vue-cli4 背景图片的路径问题
比如我想把项目部署到/vue目录下 vue.config.js里的publicPath是/vue/,assertDir是static 我的一个样式里是这样写的 background-image: url(/vue/static/img/ ... 前缀该怎么动态的改变?(用的是sass) 忘了说了,static是在public下,public和src同级...
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echarts环形图中间加文字,并且大小可以自适应,怎么做?
效果如图所示,用title和graphic可以实现图中心加文字 用echarts.resize()可以实现环形图随屏幕尺寸修改而自适应,但文字大小不会变化,这个要怎么设置? 在网上找的类似这种方法都没有生 ... fontSize里调用无法生效 vue本身有用amfe-flexible和postcss-pxtorem做rem转换,图表里设置是合这有冲突吗?...
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本地无需安装开发环境,只在docker安装开发环境。 依旧可以正常的开发,调试,代码提示,编译等
同过vloume 基本实现,但是本地没有jdk。 idea等工具依旧不能代码提示。 theia虽然实现,但是毕竟在游览器里面...
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本地无需安装开发环境,只在docker安装开发环境。
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为什么swagger json的生成的类,有的有discriminator字段,有的类没有这个字段,两个类的差别并不是很大?
上图中的类没有discriminator,然后下图中的类却有这个字段,两个类的写法几乎一样,只是上图多了两个属性name和label,type属性都有必填校验,生成的json中必填校验也不一致 有前辈知道是为什么吗。 这对生成客户端代码来说很重要,图一中的类因为没有这个字段,继承自它的类都报错了...
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macos - When debug, I cannot input it appears"Terminal will be reused by tasks, press any key to close it."
I totally follow the official documents but I just cannot debug anyway. In the meantime, every time I try to debug ... program] would like to access files in your Documents folder....
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egg+vue 的服务端渲染,报错了
这是一个egg+vue 搭建的一个服务端渲染的nodejs项目,node启动成功了,但是在访问页面的时候,进行服务端渲染的时候报错了 应该是因为模板里边需要引用这个方法,但是因为不是浏览器环境,所以没有这个方法,这个应该怎么解决?...
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visual studio code - VSCode - copy localhost path in right-click menu
Is there a way to add a custom item to the right-click menu in the VSCode explorer? Specifically, I am looking ... to localhost:8000 and pasting the relative path after it. Thanks...
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visual
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vue获取的接口,包含的图片,怎么压缩
用vue调接口,图片填充页面,图片太大,反应慢,怎么压缩...
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react setState
我的state this.state = { text: '', form: { aaa: '', bbb: '' } } 我查阅了资料,当key为变量时可以这样写: this.setState({ [key]:value }) 但 ... 下面这样写直接报错了 this.setState({ form[[key]]:value }) 救救孩子吧!!!呜呜呜...
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exec - Generate an executable from python project
I need to generate an executable from a python project containing multiple folders and files. I tried to work with library ... file project. Can you tell me how to do please?...
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exec
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dijkstra - React Native Maps Using Dijsktra's Algorithm
I have a question is there a way to implement dijkstra algorithm using react native maps to a react native ... to build an app that shows route using dijkstra algorithm....
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为啥这个js对象不是按代码执行顺序输出
var ob2 = {} ob2.a = 1 console.log(ob2) // {a: 1} ob2.b = 1 console.log(ob2) // {a: 1, b: 1} ob2[342344] = 1 console.log(ob2)// ... 示,感觉应该是输出 {a: 1, b: 1,342344: 1},怎么让他按照这种形式输出呢?...
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谷歌版本更新导致easyui-textbox不能使用?
今天更新了谷歌浏览器,当前版本85.0.4183.102,现在导致easyui-textbox不能填写内容,填完失焦后内容就被清空了,急急急,有知道怎么回事的吗?...
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java - How to Call my Fragment's TextViews and Button from my Activity?
To start with, I'm still new to Android development, I've asked similar questions here before How to make my Fragment ... But if you have any solid suggestions, I'll appreciate it....
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v2ray客户端failed to read http request
v2ray客户端遇到下面错误 v2ray.com/core/app/proxyman/inbound: connection ends > v2ray.com/core/proxy/http: failed to read http request > malformed HTTP request "x05x01x00"...
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v2ray客户端failed
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elasticsearch中对nested类型数据进行脚本合并出错
现在有如下的mapping结构 "mappings":{ "properties":{ "userId":{ "type":"int" }, "nickname":{ "type":"keyword" }, "huanbi":{ "type":"nested", " ... ?如果想要实现合并的功能需要进行怎么样的修改,还是说这个功能目前实现不了...
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java - Unable to add the task to listview in my tasks app
So I am working on a tasks app. I am trying to set up a functionality, that might sound a little ... android:id="@+id/etWorkingMins" android:layout_width="wrap_content" an...
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通过列表页列表的编辑id获取对应信息,取到了id,但输出的内容是错的
PHP <?PHP header("Content-Type: text/html; charset=utf-8"); include('conn.php');//链接数据库 $sql = 'select id,article_name,check_box,radio_box, ... 测试1,而且val出来的内容是测试2,怎么改能准确的获取对应的内容?...
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react函数组件更新,如何追踪触发更新的来源?
比如组件更新了N多次,我想追踪每次都是哪个hook变化导致组件更新的...
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javascript - Range Slider With Links Based On Position
Is it possible to have a range slider and based on the position of it sending you to a link when you click submit?...
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build提示文件过大
The bundle size is significantly larger than recommended. 这个怎么解决呀 The bundle size is significantly larger than ... You can also analyze the project dependencies using ANALYZE=1...
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How to convert array collection to a dataset c#
Hi have a response class that has three models, all of a certain type... public class AssociationResponse { public ... arrays to a dataset. Not sure how to do this....
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linux find 命令
#!/bin/bash src=find?src?-name "*.h*" echo $src 想找到src目录下的所有带.h的文件,错在哪儿了呢...
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r - Clustering time series - Distance betweens time series
I'm running hierarchical clustering to time series where I have N time series, where each has 24 observations, i.e, ... only one value, I guess the behaviour is not accounted for?...
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.localhost后的域名
.localhost后缀的域名有什么作用,比如域名:www.xxx.localhost...
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nodejs连接mysql会断开
之前用nodejs连接mysql每隔几分钟就会断开一次 然后按照stackoverflow上的回答将连接改成了连接池 虽然可以保持长时间连接不断开,但是一旦有十分钟左右的时间没与数据库通信,第一次的通信时间就会显著变长 而且一旦几天内没进行通信(具体时间不清楚 超过八个小时)依旧会无法连接到数据库...
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