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JPA 多表查询时，关联表没有数据，如何显示关联外键？

比如我有 APO 和 BPO 两个实体类，一对一关联，APO 中 B_ID 在 BPO 中没有记录，所以 APO.BPO 为 null，但我想要在 APO 中把 B_ID 显示出来，要怎么做呢？...

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

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519 views

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rasa nlu - Do Botfront use the NLU data while running model to chat

Actually, I trained my dataflow for my chatbot using Botfront. After that for some scenarios used the trained model to ... config to run the model trained botfront in rasa.agent....

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

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496 views

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echarts如何实现图表高度自适应呢?

我目前是写死的1000px，太难看了...

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

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583 views

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multithreading - How can i print data in a file using 2 threads in java

i need to print some data in a file using 2 threads that run alternative, one for odd index, and the other for ... catch exception or anything, could you guys please help me out?...

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

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php - My Pagination worked in local but error in server #CodeIgniter4

I have some error with my pagination, and it's my controller : $data = [ 'title' => " ... :forInvalidFile ( arguments ) This the arguments: $path AppViewsPagersphoto_pagination.php...

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

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tinymce 3 - How to set default Font and Font Size in Tinymce3.0?

Not able to change default font and font size. I have tried different methods as following. content_style: "body { font-size: ... ; }" this.getDoc().body.style.fontSize = '14px';...

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

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使用Vue Element-UI进行表单验证如何获得表单整体的验证状态

有一个需求是在表单某个字段未通过时按钮变灰不可点击，随着验证通过变为可以点击，我在表单的validate事件中调用this.$refs['form'].validate()但是却报了[Maximum call stack ... { console.log(res); }).catch(err=>{~~~~ console.log(err) }); },...

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

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excel - How to Open workbook?

I have this macro that used to work nicely for a while. I replaced seemingly irrelevant function Insert ... Close SaveChanges:=False ActiveWorkbook.Sheets(1).Activate End Sub...

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

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关于vue 长列表可视区域渲染问题

参考了大佬的文章https://zhuanlan.zhihu.com/p/... 模仿着自己实现了一个长列表可视区域渲染功能代码如下(基本和原文一致) 滚动组件 <template> <div class="list-view" @scroll= ... 总高度,但是滚动到下一个的时候会发现 scrollTop 过大导致直接偏移不准确求大佬求思路~...

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

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CLion定义中文函数名，CMake build不成功，究竟是哪个的原因

问题描述：从VS2019转用CLion，其它都挺好，就是发现好像不支持中文函数名，中文枚举变量开发需要，有的地方必须用中文代码： #include <iostream> int 加法(int a, int b){ return a + b; ... 知道，这是CLion的原因？还是CMake的原因？还是编绎器g++的原因？有没有什么办法解决这个问题呢？...

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

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intellij idea - Code style formatting without google-java-format plugin

Please tell me how to use code style formatting in IDEA? I used the google-java-format plugin and it works very well for me. ... plugin? I don't want to use a plugin. Thank you!...

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

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How to allow for specific IPs to access rss feed urls in nginx?

I want to restrict the access to rss feed urls like https://example.com/feed/20 and allow the access to specific IPs. I have ... all; } Can any one has a best way to apply this?...

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

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727 views

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<el-table>在排序状态下的排序箭头的颜色

<el-table>能修改排序箭头的颜色吗...

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

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688 views

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python 3.x - Bash run task via ssh and get stdout, stderr live output to file in background

I am running a python 3 script via ssh, and I want to see the stdout and stderr in a file on the remote server. ... The problem is that the ssh is waiting for the script to finish....

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

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java - Does MockRestServiceServer support mutual TLS and if so, how to configure it?

We use org.springframework.test.web.client.MockRestServiceServer in our IT tests to verify our RestTemplate handling. Now, I need ... that or do I need to go for something else?...

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

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电商网站搭建问题

想做个电商网站没有正规站点搭建的经验对于一些支付交易安全以及网站构架没有资料或者书可以看一下？如果你有经验可以教我以下就更好了...

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

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postgresql - Get day name based on custome ID of bigint[] datatype

I want to display Day name based on ID which is in bigint[] in the table as shown below: Table: create table tbl_days ( ... temp_days t on t.id = any(d.day_ids) group by d.day_ids...

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

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320 views

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sql - Get rows with timestamp from current week in Postgres?

I'm trying to build a weekly leaderboard of sorts and was wondering how I could get the rows with a timestamp that is within ... ? If not, what can I do to get the desired result?...

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

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indexing - MongoDB Time-Spatial Query is slower with 2dsphere Index

Recently, I started to investigate the performance of MongoDB with AIS Data. I used a collection with 19m documents with ... or opinions, why the query with the index is slower?...

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

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请问map<string, any>怎么存取function<>呢？

#include <map> #include <iostream> #include <any> #include <functional> using namespace std; int add(int a, int b) { return a + b; } void echo ... 函数注册但是卡在了泛型这里，如果不能用any的话有什么其他办法么？...

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

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663 views

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一道关于js this指向问题

var name = 'the window' var ob = { name: 'my object', getName: function(){ return this.name; } } var a; console.log(ob.getName ... object 为什么第二个显示my object? 立即执行函数this不是指向window吗？...

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

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compact form of many for loop in C++

I have a piece of code as follows, and the number of for loops is determined by n which is known at compile time. ... question is whether one can write it in a more compact form....

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

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uni-app富文解析的问题

在uni-app上我用这个插件解析富文本，在web端，就说在浏览器上显示没有问题。但是用手机调试，或者云打包成app就显示不出来了。在手机调试的时候，看到控制台打印出这个问题。。求助大佬，这是哪里出来问题，有没有什么解决方法...

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

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282 views

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javascript - how to add some key to all ajax calls in existing get/post requests

i'm working on a existing big project where i have requirement like Question: i need to add auth_token to all existing Apis of ... /ajax/libs/jquery/3.3.1/jquery.min.js"></script>...

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

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244 views

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elasticsearch中使用scripted_metric进行排序

一个用户拥有id，mobile，nickname以及一个huanbi数组现在已经可以通过scripted_metric将符合条件的huanbi数据汇总到一起，但是在最终reduce阶段的时候尝试进 ... .sort(finalResult, Collections.reverseOrder());return finalResult;" } } } }...

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

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325 views

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HBuildx 在.vue文件中<template>标签没有html标签提示。

...

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

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284 views

1 answer

fetch调接口只有options请求的问题

今天使用fetch调接口，发现只有一个options预请求,没有后续的post请求，代码如下 fetch('http://sci.hoptest.haier.net:9900/haierbpm/operation/bpm/ws/history', { ... console.log(res) }) 现象如下第一次用fetch实际调接口，请教这是啥问题...

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

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hyperf关于session的疑问

描述：在不同方法中无法获取session的值比如在settest方法中设置了session，但是在test获取不到...

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

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