javascript - axios upload data to php returns empty

1.vue 2.0 uses axios to upload data and returns empty, and the background is php 2.vue code {code...} 3.php code {code...} 4.console returns data {code...} 5. Remarks get Obtaining data is valid. For some reason, post submission data cannot be obtained on the php page, and the return is empty, htm.....

过去多啦不再A梦 2017-06-20 10:05:38 0  2  1011

Java - When inserting data with empty value into the database, it says that my data is too long.

When inserting null data into the database, the error Data truncation: Data too long for column 'REPLY_TYPE' at row 1 is reported. This field is set to varchar(20). The character set of the program and table is utf_8.

漂亮男人 2017-05-25 15:08:09 0  2  715

python - Scrapy ItemLoader data cleaning questions

When using scrapy to capture data, use the itemloader class. When the value taken out by the selector is empty, enter scrapy.Field() and call filter(). If the selector value is not empty, it will indeed return "with value". If the selector is taken out [] or "", then after the va...

PHPz 2017-05-27 17:39:47 0  1  1156

python - How to write a script to clear a certain row of test data in the database

I just need to write a script. The database has a mobile phone number for testing. After registration, there will be a lot of related data in the database. Then the script needs to be able to clear these data or set them to null. This is a similar script. How should I modify from future import print...

阿神 2017-05-18 10:50:07 0  1  984

javascript - Use nodejs to transfer database data to the front desk. There is data in the database and the connection is successful, but why is an empty array obtained?

1.api.js 2.db.js 3.vue 4. Database The result is: The result obtained is an empty array, but the link and the database are both correct. Why is this? ? ?

ringa_lee 2017-06-05 11:08:50 0  4  1197

Adding here will add null values. How can we prevent the added data from being null?

Adding here will add null values. How can we prevent the added data from being null?

Simon（朱思衡） 2021-03-29 15:33:58 0  0  945

Axios returns 500 error status code when data exists

I'm using Laravel8, VueJS and Axios to develop my application, but every time I try to get all the records from the database, it returns an error with status code 500. There are no errors even when using Postman/Insomnia to get the data. I tried clearing the table from which the data was obtained, t...

P粉275883973 2023-08-30 17:42:42 0  1  555

How to clear database cache in mysql 8 innodb

I've tried running the same query multiple times on the same mysql8 database and table. I need to experiment to determine if tuning the query and/or the table itself can improve performance. However, after the first try, the response time is much faster, I think because the data is cached. mysql8inn...

P粉571233520 2023-08-27 23:46:28 0  2  671

How to clear browser cache programmatically?

I'm looking for a way to programmatically clear browsing's cache. The reason I do this is because the application caches confidentiality data that I delete when you press "logout". This may be done via the server or JavaScript. Of course it is still possible to use domination/public comput...

P粉419164700 2023-08-01 12:05:53 0  2  722

The image is uploaded successfully but the database field is empty

In the current situation, the file upload was successful, but the pic field of the database was empty and the path information was not passed. The code has been checked many times.

复印名片广告 2020-04-30 23:53:20 0  3  1494

javascript - How to clear the data returned by the previous request when using ajax to request data

When requesting data with ajax, the returned data is appended to the dom. When the next ajax request is made, the returned data will be superimposed with the data returned for the first time. Do you have any good methods to solve this kind of superposition of multiple request data? question?

天蓬老师 2017-05-31 10:39:23 0  1  800

Database data

Could you please provide the database data?

虾米 2021-01-12 10:59:30 0  0  1150

Vuetify data table header array does not accept empty subassociations

I have a datatable using Vuetify that passes the localAuthority attribute from the Rails backend. Everything works fine until I pass an empty child association (nested attribute). In this case "county":<script>importaxiosfrom"axios";exportdefault{name:'LocalAuthorityIndex',...

P粉928591383 2024-03-27 17:30:37 0  1  480

javascript - Clear data after bootstrap modal box popup

However, after each click, the data is still the data of the previous click. New data will be displayed only after refreshing, using {code...}

曾经蜡笔没有小新 2017-05-18 11:00:07 0  1  515

Using Docker to run Mariadb but the database is empty

So I can access running mysql inside the virtual machine using: mysql -h (mariadb's IP) -u (user) -p (password) database name Now when I try to create the following command to run mariadb inside a docker container :[ref](How to access mariadb on docker remotely?). Then when I display the table, it d...

P粉364129744 2023-08-31 14:40:53 0  1  546

There is still a bug in this place. It is not a problem with empty data submission.

There are still bugs in this place. The problem is not only when submitting empty data $param = $request->param(); $pwd = (UserModel::get(['id'=>$param['id']]))[ 'password'];

电动小老虎 2017-12-21 19:10:24 0  1  1357

PHP reads Mysql database data and echoes html problem

I use php programming to read database data, and the field is a string with spaces. After reading successfully, assign the value to The value of the text text box. The result is displayed, and the characters after the spaces are ignored by the browser. please help. For example, there is a field call...

城乡结合部部长 2020-02-19 12:27:19 0  1  1296

MySQL InnoDB does not free disk space after deleting data rows from table

I have a MySQL table using the InnoDB storage engine; it contains approximately 2M rows of data. When I delete data rows from the table, it does not free the allocated disk space. After running the optimizetable command, the size of the ibdata1 file has not been reduced. Is there any way to reclaim ...

P粉148434742 2023-10-15 00:02:19 0  2  730

javascript - How to use blank DIV filling method to solve the problem of too much list data?

I found a problem when using Vue to make a list page: one piece of data occupies one row, one screen can hold about ten pieces of data, and new data is loaded when the scroll bar scrolls to the end. But when the amount of data is particularly large, maybe tens of thousands, then there will be a lot ...

漂亮男人 2017-06-26 10:54:26 0  4  832

There is a problem with data validation

There is a problem with my data validation. When each field is empty, it prompts "Username cannot be empty." In addition, when all fields have values, it also prompts "Username cannot be empty." What is the reason?

Jackie 2019-10-03 23:55:41 0  3  1366