Jonic Developer Community

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Welcome to Our Knowledge Sharing Community-Open, Learning,Share

Welcome to developer's Knowledge Sharing Community-Open, Learning,Share 欢迎来到程序员专属的知识分享社区! 一个分享知识，传递知识，学习知识的社区！...

asked Feb 5, 2021 in Others[杂七杂八] by ostack (1.4k points)

0 votes

508 views

1 answer

javascript - Input field loses focus after typing one character in react app

In my case I have a dropdown and based on the number selected with the dropdown some input fields appear. When I type into the input field the focus on that input field is ... handleSubmit}> <ShowData /> </form> </div> </div> </div> ); };...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

115 views

1 answer

java 泛型获取

java如何获取泛型的具体类型, 基本代码如下. 目标是可以通过 clazz()方法来输出当前的泛型类型. import java.math.BigDecimal; interface Parent<T> { void clazz(); } class Child<T ... <BigDecimal> bigDecimalChild = new Child<>(); bigDecimalChild.clazz(); // 期望输出 BigDecimal.class } }...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

474 views

1 answer

android - java.lang.IllegalStateException: Reply already submitted -- When trying to call result.success multiple times?

When I am trying to pass value multiple times from android native to flutter am getting the below exception. E/AndroidRuntime(14203): java.lang. ... my question is how to call result.success from android native to flutter?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

243 views

1 answer

VS Code 中的块注释

我的 Windows 系统下的 VS Code，原来在 js 类型的文件里编辑注释，只要敲入/**并回车，会立马产生： /** * |（光标） */ 我的现状：而且光标挪到第一行尾，再回车，也没帮我填充 *。我尝试在 Mac 下禁用所有扩展后体验这个功能，是正常的。请问，可能是哪些配置影响了这个特性？...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

798 views

1 answer

docker - Error response from daemon: failed to start shim: fork/exec /usr/bin/containerd-shim: too many open files: unknown

I am using docker executor in Gitlab to build Ci/CD pipelines. And frequently I am facing this particular issue. It started happening all of a sudden and all the ... idea what could be issue here and what can i do to fix this permanently....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

93 views

1 answer

vue+nuxt能够用吗

比如说像思否这样的项目，它的文章和提问都是需要被爬虫爬的，那么用了spa+ssr能够满足seo需求吗...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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256 views

1 answer

关于echarts的问题？

有什么办法可以让这几个的label不相交，不重合吗...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

389 views

1 answer

springboot中，如何将自己封装的返回格式代码段的new改为注入的形式？

public class ApiReturn<T> { private Integer code; private String mes; public T getData() { return data; } public void setData(T data) { this.data = data; } private T data; public ... return apiReturn; } } 这样代码可以执行，但编辑器有个提示怎么写能消除这个提示？...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

283 views

1 answer

Can i run C# windows program with mdf file without sql server?

I build a program in visual studio which has mdf file , I want to run the program on other computer has no sql server it is possible ? if not what I should do...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

326 views

1 answer

JS 更新数组里面对象相同的ID的内容

let arr=[ ] 第一次push一个对象 {id:1, text:'11111'} 第二次push一个对象 {id:2, text:'22222'} 此时 let arr=[ {id:1, text:'11111'}, {id:2, text:'22222'} ] 第三次push对象{id:1,text:'33333 ... '} 此时 let arr=[ {id:1, text:'33333'}, {id:2, text:'44444'} ] 请问下有什么犀利的方法...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

464 views

1 answer

vue-cli3 如何修改Prefetch选项？

https://cli.vuejs.org/zh/guide/html-and-static-assets.html#prefetch 在vue-cli3脚手架搭建的vue项目里，配置vue路由懒加载并不会生效，启动项目还是会加载全部组件这是因为vue-cli3会默认给async chunk组件标记 prefetch 预加载被标记为prefetch的资 ... 生效，也找不到更详细的文档暂时采用第一种方法，移除prefetch插件再给需要预加载的路由单独添加魔法注释 ...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

540 views

1 answer

rabbitmq 消息发布与订阅

客户端(安卓跟IOS)用mqtt协议订阅消息，然后管理后台用amqp来发送消息，但是发现用ampq协议来发送西消息，mqtt端接收不到，如果用mqtt来发送是没有问题的，代码就是用官方的测试代码如下： // 发送端代码 conn, err := amqp.Dial(" ... mqtt.Client, msg mqtt.Message) { fmt.Printf("* [%s] >> %s ", msg.Topic(), string(msg.Payload())) })...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

522 views

1 answer

golang if 多个条件怎么简写

if fileFormat == "csv" || fileFormat == "xlsx" || fileFormat == "xls" { } 提示能简写，但是不知道怎么写...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

149 views

1 answer

el-time-select能获取picker-options吗？

<el-time-select :editable="false" v-model="editForm.Timestart" :picker-options="{ start: '00:00', step: '00:15', end: '22:00', minTime: mtStart }" placeholder="开始时间" ></el-time-select> 我想加载就直接显示picker-options里第一个可选项是第一个可选项，不是第一项...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

150 views

1 answer

How to solve for 'text overflow.ellipse' in flutter?

I am unable to make my text stop extending the screen and overflowing. My code is as follows: class OrderTileDisplay extends StatelessWidget { final MenuOrderData orderItem ... widget but I keep getting errors. Not sure how to solve it....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

111 views

1 answer

java - BubbleSort for Object type of array is not working perfectly

I want to ask about bubblesort (Java) Here's my code Object[] bubbled = {"LMAO", 3.48 ,2.3 ,3.61 ,3.16 ,3.56 ,2.9 ,3.99 ,4.87 ,3.91}; for(int pass=1 ; pass ... ,3.48 ,3.56, 3.61 ,3.99, 4.87 ,3.91 Can someone please point out what's wrong ?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

146 views

1 answer

html - Animate SVG line between custom input price range

I'm building a price range slider with 2 inputs from min price to max price and a SVG line that would animate left/right inside the slider thumbs. I'm struggling to find ... <span>{`￡${maxRange}`}</span> </div> </div> ); } Effect desired:...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

352 views

1 answer

关于echarts如何动态添加markline的问题？

在柱状图中使用markPoint，如何在鼠标悬浮markpoint时动态的添加markLine？比如hover上面的那个感叹号，动态添加下面的那条markline 哪位大佬提供个思路...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

266 views

1 answer

关于 spring security 配置问题

想实现只对 /actuator/** 路径会进行鉴权，并且在源 ip 为内网的时候放行，否则需要通过 HTTP basic 认证目前的配置可以实现内网放行，代码如下： http.antMatcher("/actuator/**") .authorizeRequests() .anyRequest() .access("hasIpAddress(' ... .and() .httpBasic(); 大佬们帮忙看看应该怎么配置，或者有没有什么最简单的办法能做自定义的权限校验 ...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

278 views

1 answer

这三种 async 写法区别是什么？

async function run1() { Promise.reject(new Error("Oops!")); } async function run2() { await Promise.reject(new Error("Oops!")); } async function run3() { return Promise.reject(new Error("Oops!")); } 为什么run2() 结果是那样子？...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

84 views

1 answer

javascript - Adding session to the middleware token auth

My project is in Vue3 with node express backend server and firebase for database service. The front end api call for updating users: async updateUser(){ this.success ... in which the user can update data only for a certain period of time....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

214 views

1 answer

小白请问小程序输入数字后怎么把数字变成*号？

/* 密码弹窗 */ .password-model { position: fixed; top: 0; width: 100%; height: 100%; background-color: rgba(0, 0, 0, .7); } /* 输入车牌与键盘 */ .link_item { ... { this.setData({ carKey: true }) } this.setData({ plateBox: plateBox, keyI: idx, }) },...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

29 views

1 answer

webRtc是集成在浏览器里面的吗

webRtc是集成在浏览器里面的吗...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

321 views

1 answer

python - Create dynamic URLs in Flask with url_for()

Half of my Flask routes requires a variable say, /<variable>/add or /<variable>/remove. How do I create links to those locations? url_for() takes one argument for the function to route to but I can't add arguments?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

325 views

1 answer

java线程发生异常线程被打断，和调用stop() ，有什么区别吗?

线程发生异常线程被打断，和调用stop() ，有什么区别吗?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

375 views

1 answer

Oracle VM VirtualBox已设置了几个存储磁盘，但安装系统时仍提示无可用空间，这个如何解决？

...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

196 views

1 answer

引入的JAR包内逻辑有错误，该如何适配？

在我的工程中引入了一个依赖的jar包，但是后来发现这个包内有段逻辑写的有问题，在不修改这个外部依赖的情况下，如何在本工程内覆盖或者修复相应逻辑呢？...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

265 views

1 answer

vue的动态组件, 每个组件都有不同的slot怎么处理？

每个组件都有slot, 而且有的组件有一个slot，有的有多个slot，那么我在父页面如何写？比如组件1是 `<template> <div> <slot></slot> <loading></loading> </div> </template>` 组件二是 `<template> <div class="header" ... :is="component"/></keep-alive> 怎么在调组件1的时候传组件1的slot，在调组件2的时候传组件2的两个slot呢...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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