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Tools to diagnose Spring application and find out why it starts so slow

? Recently I found out that it took about 10 minutes to start my Spring Application. I googled, but only find ... found out which module in my application needs to be optimized....

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - what happens if I didn't preserve Object.defineProperty descriptor attributes?

On MDN doc I couldn't understand this part about Object.defineProperty descriptor : Bear in mind that these ... there unexpected things that may happen? example, please?...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Find files with comments with Google Drive API v3

Is it possible to find files with a q arg in the service.files().list() method, so that only files with comments ... have comments? I have looked at Query reference to no avail....

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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php curl post 数据量过大的问题

有个需求在一台服务器上查询出一些数据，然后推送到另一台服务器上。查询出的数据大概一万多条，用浏览器执行php curl的时候，过一段时间浏览器就跳到--无法显示该页--上，curl的过期时间还有php脚本执行时间都调的很大，应该不是这两个到期了。如果数据量小就没问题，求解这是什么原因...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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458 views

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maven tomcat插件部署web项目

1.我通过maven的tomcat插件进行web项目部署,然后成功了.问题是当我修改了项目的代码之后如何重新部署呢?页面修改后它会实时更新,但是java代码改了之后就不更新了啊,又木有redeploy的选项 2.求懂的道友指点,头一次使用实在不知道怎么弄了!拜谢...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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jquery $.each遍历的时候怎么输出全部值

var json=JSON.parse(msg.responseText); $.each(json, function (n, value) { if (typeof(value) !== "undefined") { alert(value);//怎么一次性输出value而不是循环输出 } }); 输出的是值，不要输出数组...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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635 views

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jupyter lab - How to disable line wrapping in Editor in JupyterLab 3.0.0?

I am using JupyterLab 3.0.0. By default, its text editor, called simply Editor, wraps long lines. How can one disable it?...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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请大家看下这段代码的问题

这是一部分代码， var ul = document.getElementById('ul-list'); var li = document.getElementsByTagName('li'); //当点击某个li时消除那个li for(var ... ){ ul.removeChild(this); } } } </script> 请问这是怎么回事？...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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执行结果报错：ImportError: cannot import name exceptions

源码报错这是什么原因啊？...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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318 views

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sparkstreming不通过checkpoint怎么进行driver恢复，怎么解决？？？

sparkstreming读取kafka数据，不采用checkpoint来维护偏移量，自己通过zookeeper来维护，这里有一个问题如果sparkstreming的driver宕机，没有checkpoint怎么保证driver级别的恢复？？...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How to assign colour to a value in static text box in GUI MATLAB

A good day everyone, I'd like to get some ideas on how to assign colour for a specific value on my static text box for GUI. ... num2str(d/t) 'km/h']; set(handles.Speed,'String',a);...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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665 views

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karate - call the first feature from the second feature file, failed without specified clue

Run the first.feature file successfully，however， call it from the second.feature failed without any clue to analysis. Do ... failed: read('classpath:mainFlow/first.feature'), null...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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174 views

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java - Images not showing in gallery

I am working on the Whats'up status saver app. The status images are showing in the file manager but are not showing in the ... ; src.close(); dst.close(); } What I doing wrong?...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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2.4k views

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r - Error in UseMethod("filter_") : no applicable method for 'filter_' applied to an object of class "c('double', 'numeric')"

Was trying to filter numeric value >100 to create a new vector , but am getting the error. tried upload dplyr package & removing ... to an object of class "c('double', 'numeric')"...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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330 views

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syslog - How to detect and handle errors during logging with rsyslog

I'm using the ompgsql module to insert log messages directly to a Postgres DB. Further, the logs are in JSON prefixed ... solution. What is the best way to handle such a scenario?...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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538 views

1 answer

r - Error : package or namespace load failed for ‘imputeTS

I'm trying to load inputeTS package in my R version 3.6.3 running on databricks. I wrote following command install. ... :ggplot2' Can you suggest me how to resolve the issue?...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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180 views

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javascript - Getting the coordinates on the edges of the map in view

I have a simple map (taken from the documentation) which is centered at a point function moveMapToBerlin(map){ map. ... user having to manually get the coordinates of the corners)...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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419 views

1 answer

vue.js - vue-bootstrap-datetimepicker input typing permission block without disabled & readonly

I'm using vue-bootstrap-datetimepicker in my project. It's works fine. But I faced an error in this picker ... (picker functionalities do not trigger) Is there a better solution?...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

1 answer

echarts如何在柱状图上显示百分比

想在显示的数据后加个%符号...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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247 views

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How to preview a forked github site

I have forked a github website which is based on wowchemy/hugo - in order to update some information and ... raw.githubusercontent.com/username/reponame.github.io: 400 Bad Request...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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image - Data generation method of DeepSort + Volov5 algorithm

First of all, I am practicing based on 'https://github.com/mikel-brostrom/Yolov5_DeepSort_Pytorch'. Question 1 Is the ... . Does deepsort also need to train custom data afterwards?...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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mysql大表如何修改表结构，如增加字段或修改字段类型

一个几千万的innodb表，想要修改其中一个字段的类型，或者增加一个字段，需要怎么操作？...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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583 views

1 answer

c# - Slow down keystrokes in selenium

I am entering text in a textbox in selenium using: driver.FindElement(By.XPath(xpath)).SendKeys("1234"); The ... is happening. Is there a way to slowdown the keystrokes?...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

1 answer

nginx uwsgi flask ERR_CONTENT_LENGTH_MISMATCH 200 (OK)

nginx uwsgi flask ERR_CONTENT_LENGTH_MISMATCH 200 (OK) first time calling get API with response body size-2 MB - data is coming ... = 1 Please let me if I am missing something?...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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344 views

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c - A problem with students and courses Linked List

I created a linked list of courses, and Im trying to write a function to create or update a linked list of students, ... = studentsList->next; } studentsList = head; } } }...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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315 views

1 answer

javascript - Docker compose doesn't connect to POSTGRESQL cloud URL , only changes data locally on Postgres Image

I'm using the following Docker-compose.yaml file : version: "3" services: myApp: container_name: employeeApp build: ... URL postgres://postgres:[email protected]:5432/EMP_DB....

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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461 views

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请问如何解决angular2 服务嵌套注入的问题？在线等！！！！！！！！！

我写了一个http拦截的服务，然后我需要在拦截的时候去验证用户是否过期，过期了跳转到登录界面。然而登录界面的page依赖的服务恰恰依赖了http这个服务，就循环依赖了。请问大神们怎么解决的？...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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535 views

1 answer

在搭建mysql-cluster时有一句话不理解：“数据节点的数目与副本的数目相关,是片段的倍数”

在编辑管理节点的配置文件config.ini时，有这么一个属性： NoOfReplicas 该属性的值默认为2，意思是副本数。而集群中数据节点的数目与该值有关，即【数据节点的数目与副本的数目相关,是片段的倍数】不理解这句话中的片段是什么，希望哪位大侠能解惑。...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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