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Asked: 2 years agoIn:
Teacher

I’m fairly new to web development and I’m running into some issues with my JSON serialization. I’ve read that the default value for “maxJsonLength” in the web.config file is set to 2097152 characters. I’ve also read that this can be ...Read more

I’m fairly new to web development and I’m running into some issues with my JSON serialization. I’ve read that the default value for “maxJsonLength” in the web.config file is set to 2097152 characters. I’ve also read that this can be changed by adding the “maxJsonLength” attribute to the “system.web.extensions” section of my web.config file.
I tried adding the following code to my web.config file, but I’m still getting a JSON serialization error when I try to return a large amount of data from my controller:







I’ve also tried setting the value to “-1” to indicate unlimited length, but that didn’t work either. I’m not sure what I’m doing wrong, but any help would be greatly appreciated. Here’s an example of the code that’s causing the issue:
$(function() {
$.ajax({
type: ‘GET’,
dataType: ‘json’,
contentType: ‘application/json; charset=utf-8’,
url: ‘/MyController/GetData’,
success: function(data) {
$.each(data, function(i, item) {
var content = ‘

‘ + item.Name + ‘

‘;
$(‘#content’).append(content);
});
},
error: function(xhr, status, error) {
alert(xhr.responseText);
}
});
});
I’m not seeing any errors in my console, but I’m not getting any data returned either. Any idea what I could be doing wrong? Thanks!

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asp.netconfigurationjsonmaxjsonlengthweb-applicationsweb-configweb-development
  1. utxpiv_ Begginer

    The error "libpng warning iccp known incorrect sRGB profile" usually occurs when an image has an incorrect profile. To resolve this issue, open the image using a photo editing software and make sure it is saved without any color profile or with a proper sRGB color profile. Sometimes this error is alRead more

    The error “libpng warning iccp known incorrect sRGB profile” usually occurs when an image has an incorrect profile. To resolve this issue, open the image using a photo editing software and make sure it is saved without any color profile or with a proper sRGB color profile.
    Sometimes this error is also generated because the image is missing a profile, so to fix this, you can set the color profile of your image before saving it. This can be done using a photo editing software or command-line tools like ImageMagick.
    In my personal experience, I had encountered this error while working on a web project. I had to make sure that all the images used on my website were optimized and saved with the correct color profile. This helps in reducing the page load time while maintaining the color quality of the images.
    To troubleshoot this error, it is also recommended to check if your code is properly handling the image files and loading them in the correct format. Sometimes, the issue may not be with the image itself but with the way it is being processed and loaded. By following these steps and practices, you can avoid this error and ensure that all the images on your website or application are displayed correctly.

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    • 30
Asked: 3 years agoIn:
Begginer

I was trying to connect my Spring Boot application to a MySQL database using DataSource, but I kept getting a “No qualifying bean of type javax.sql.DataSource” error. I’ve followed various tutorials online, including this one: https://www.baeldung.com/spring-boot-checking-connection-to-database. ...Read more

I was trying to connect my Spring Boot application to a MySQL database using DataSource, but I kept getting a “No qualifying bean of type javax.sql.DataSource” error. I’ve followed various tutorials online, including this one: https://www.baeldung.com/spring-boot-checking-connection-to-database. However, I still can’t get my application to connect to the database. I have verified that the database is running and that the credentials are correct. Can you please tell me what I’m doing wrong?
Here’s what my application.properties file looks like:

spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/testdb?useSSL=false
spring.datasource.username=root
spring.datasource.password=password123

And here’s my DAO class:

@Repository
public class UserDaoImpl implements UserDao {

private final JdbcTemplate jdbcTemplate;
@Autowired
public UserDaoImpl(JdbcTemplate jdbcTemplate) {
this.jdbcTemplate = jdbcTemplate;
}
@Override
public List getAllUsers() {
String sql = "SELECT * FROM user";
return jdbcTemplate.query(sql, new BeanPropertyRowMapper<>(User.class));
}
}

I’m really at a loss here, so any help you can provide is greatly appreciated. Thank you!

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annotationsconfigurationdatasourcedependency-injectionjavajdbcspring-boot
  1. utxpiv_ Begginer

    The error "libpng warning iccp known incorrect sRGB profile" usually occurs when an image has an incorrect profile. To resolve this issue, open the image using a photo editing software and make sure it is saved without any color profile or with a proper sRGB color profile. Sometimes this error is alRead more

    The error “libpng warning iccp known incorrect sRGB profile” usually occurs when an image has an incorrect profile. To resolve this issue, open the image using a photo editing software and make sure it is saved without any color profile or with a proper sRGB color profile.
    Sometimes this error is also generated because the image is missing a profile, so to fix this, you can set the color profile of your image before saving it. This can be done using a photo editing software or command-line tools like ImageMagick.
    In my personal experience, I had encountered this error while working on a web project. I had to make sure that all the images used on my website were optimized and saved with the correct color profile. This helps in reducing the page load time while maintaining the color quality of the images.
    To troubleshoot this error, it is also recommended to check if your code is properly handling the image files and loading them in the correct format. Sometimes, the issue may not be with the image itself but with the way it is being processed and loaded. By following these steps and practices, you can avoid this error and ensure that all the images on your website or application are displayed correctly.

    See less
    • 30
Asked: 4 years agoIn:
Begginer

I’m relatively new to using Airflow, and I’m encountering a problem with setting default values for DAG run conf. I’ve been reading documentation and forums to find a solution that works for me, but I haven’t been successful so far.Read more

I’m relatively new to using Airflow, and I’m encountering a problem with setting default values for DAG run conf. I’ve been reading documentation and forums to find a solution that works for me, but I haven’t been successful so far.
To provide some context, I have a DAG with a number of tasks, and each task requires a specific set of parameters to be passed in the DAG run conf. However, these parameters are the same for every task, and I want to be able to set default values for them. This way, I can avoid duplicating and hardcoding these parameters for each task, which would be very time-consuming and error-prone.
Here’s what I’ve tried so far in my DAG file:
“`python
default_args = {
‘start_date’: datetime(2021, 8, 1),
’email_on_failure’: False,
‘catchup_by_default’: False,
‘provide_context’: True,
‘default_view’: ‘tree’,
‘default_dates’: [datetime(2021, 8, 1), datetime(2021, 8, 2)],
‘params’: {
‘param1’: ‘default_value_1’,
‘param2’: ‘default_value_2’,
‘param3’: ‘default_value_3’
}
}
dag = DAG(
‘my_dag’,
catchup=False,
default_args=default_args,
schedule_interval=’0 0 * * *’
)
“`
However, when I try to run this DAG, I get an error message saying that the `params` attribute is not a valid DAG argument. I’ve also tried using the `default_args` parameter for the operator tasks in my DAG, but this didn’t seem to work either. Can anyone help me figure out why this is happening and how I can set default values for my DAG run conf?

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airflowconfigurationdagdefault valuesrun conf
  1. utxpiv_ Begginer

    The error "libpng warning iccp known incorrect sRGB profile" usually occurs when an image has an incorrect profile. To resolve this issue, open the image using a photo editing software and make sure it is saved without any color profile or with a proper sRGB color profile. Sometimes this error is alRead more

    The error “libpng warning iccp known incorrect sRGB profile” usually occurs when an image has an incorrect profile. To resolve this issue, open the image using a photo editing software and make sure it is saved without any color profile or with a proper sRGB color profile.
    Sometimes this error is also generated because the image is missing a profile, so to fix this, you can set the color profile of your image before saving it. This can be done using a photo editing software or command-line tools like ImageMagick.
    In my personal experience, I had encountered this error while working on a web project. I had to make sure that all the images used on my website were optimized and saved with the correct color profile. This helps in reducing the page load time while maintaining the color quality of the images.
    To troubleshoot this error, it is also recommended to check if your code is properly handling the image files and loading them in the correct format. Sometimes, the issue may not be with the image itself but with the way it is being processed and loaded. By following these steps and practices, you can avoid this error and ensure that all the images on your website or application are displayed correctly.

    See less
    • 30
Asked: 5 years agoIn:
Begginer

I’m building a browser extension that uses the WebExtensions API. I have a content script with the following code: “`javascript browser.runtime.onMessage.addListener((message) => { if (message.type === ‘get-browser’) { const browserName = navigator.userAgent.includes(‘Firefox’) ? ‘Firefox’ ...Read more

I’m building a browser extension that uses the WebExtensions API. I have a content script with the following code:
“`javascript
browser.runtime.onMessage.addListener((message) => {
if (message.type === ‘get-browser’) {
const browserName = navigator.userAgent.includes(‘Firefox’) ? ‘Firefox’ : ‘Chrome’;
return Promise.resolve({ browser: browserName });
}
});
“`
When I try to load the extension in Firefox, I get an error in the console:
“`
Error: Error: browser.runtime.lastError: Could not establish connection. Receiving end does not exist.
“`
I’m not sure why this error is happening. I’ve looked at the documentation for `browser.runtime.sendMessage` and `browser.runtime.onMessage.addListener`, and it seems like my code should be correct. I’ve also searched on Google and Stack Overflow, but I can’t seem to find a solution.
One thing I noticed is that the error only occurs if I have the `permissions` key in my `manifest.json` file. If I remove it, the error goes away. But I need the `permissions` key to access the `tabs` API in my background script. I’m not sure if there’s a conflict between the two APIs, or if I’m doing something else wrong. Any help would be appreciated.

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aliasbrowserconfigurationCSSdebuggingdevelopmentfieldHTMLjavascript
  1. utxpiv_ Begginer

    The error "libpng warning iccp known incorrect sRGB profile" usually occurs when an image has an incorrect profile. To resolve this issue, open the image using a photo editing software and make sure it is saved without any color profile or with a proper sRGB color profile. Sometimes this error is alRead more

    The error “libpng warning iccp known incorrect sRGB profile” usually occurs when an image has an incorrect profile. To resolve this issue, open the image using a photo editing software and make sure it is saved without any color profile or with a proper sRGB color profile.
    Sometimes this error is also generated because the image is missing a profile, so to fix this, you can set the color profile of your image before saving it. This can be done using a photo editing software or command-line tools like ImageMagick.
    In my personal experience, I had encountered this error while working on a web project. I had to make sure that all the images used on my website were optimized and saved with the correct color profile. This helps in reducing the page load time while maintaining the color quality of the images.
    To troubleshoot this error, it is also recommended to check if your code is properly handling the image files and loading them in the correct format. Sometimes, the issue may not be with the image itself but with the way it is being processed and loaded. By following these steps and practices, you can avoid this error and ensure that all the images on your website or application are displayed correctly.

    See less
    • 30
Asked: 5 years agoIn:
Begginer

I have been trying to implement the GetPrivateProfileString API in my C++ code, but it seems that I can’t get it to work properly. I am using it to read in data from an INI file, but whenever I try ...Read more

I have been trying to implement the GetPrivateProfileString API in my C++ code, but it seems that I can’t get it to work properly. I am using it to read in data from an INI file, but whenever I try to retrieve a string value from the file, I keep receiving an empty string as a result. I have checked that the file path is correct and that the function call itself seems to be executing with no error messages, but the retrieved value is empty nonetheless.
Here’s an example of how I am calling the GetPrivateProfileString function:

TCHAR buffer[256];
GetPrivateProfileString(_T("Section1"), _T("Key1"), _T(""), buffer, 256, _T("C:\Example.ini"));

Despite Section1 and Key1 being present in the INI file, buffer always ends up being an empty string. I have tried experimenting with different values for the parameters, but it doesn’t seem to make any difference. What could be causing this issue?
Another problem that I am facing is that my INI file uses UTF-8 encoding, and I am unsure if the GetPrivateProfileString function can properly handle this type of encoding. I have tried converting the file to ANSI encoding, but that didn’t solve the issue. Could the encoding be part of the problem, and if so, how can I properly read in UTF-8 encoded strings from an INI file using this function?

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c#configurationini-fileprivateprofilestringwinapi
  1. utxpiv_ Begginer

    The error "libpng warning iccp known incorrect sRGB profile" usually occurs when an image has an incorrect profile. To resolve this issue, open the image using a photo editing software and make sure it is saved without any color profile or with a proper sRGB color profile. Sometimes this error is alRead more

    The error “libpng warning iccp known incorrect sRGB profile” usually occurs when an image has an incorrect profile. To resolve this issue, open the image using a photo editing software and make sure it is saved without any color profile or with a proper sRGB color profile.
    Sometimes this error is also generated because the image is missing a profile, so to fix this, you can set the color profile of your image before saving it. This can be done using a photo editing software or command-line tools like ImageMagick.
    In my personal experience, I had encountered this error while working on a web project. I had to make sure that all the images used on my website were optimized and saved with the correct color profile. This helps in reducing the page load time while maintaining the color quality of the images.
    To troubleshoot this error, it is also recommended to check if your code is properly handling the image files and loading them in the correct format. Sometimes, the issue may not be with the image itself but with the way it is being processed and loaded. By following these steps and practices, you can avoid this error and ensure that all the images on your website or application are displayed correctly.

    See less
    • 30