exception

问题 I'm trying to connect to a LDAP server using Laravel. It is important to say that I'm using the PHP functions ldap_connect and ldap_bind instead of using a package to handle it. The point is that when I provide wrong user and password, the ldap_bind function gives to us a PHP warning. I'm OK with this warning and, as is in the documentation, the function returns false when the bind does not occur. But, Laravel is throwing an exception when this warning is triggered. This is not an exception,

问题 I'm trying to connect to a LDAP server using Laravel. It is important to say that I'm using the PHP functions ldap_connect and ldap_bind instead of using a package to handle it. The point is that when I provide wrong user and password, the ldap_bind function gives to us a PHP warning. I'm OK with this warning and, as is in the documentation, the function returns false when the bind does not occur. But, Laravel is throwing an exception when this warning is triggered. This is not an exception,

问题 I have as an assignment (for the OOP course from Uni) a pretty large project: a school register, where students can see their grades, teachers can add grades and so on. The "base" class is a singleton which contains all the classes (Java) used, such as an array of users, classes (as in school classes) and a TreeMap that associates classess and teachers to courses. I want to serialize this base class (Central), in order to save the modified data. The problem is that I get this exception java

问题 In python if I import requests and do: t = requests.get("http://www.azlyrics.com/u/urban.html") I get this exception: raise BadStatusLine(line) http.client.BadStatusLine: '' Does anyone know how to fix this? 回答1: There can be different reasons for this kind of error, but in this particular case this looks like a simple web-scraping detection - it can be solved by providing a User-Agent header pretending to be a real browser: In [2]: requests.get("http://www.azlyrics.com/u/urban.html") ...

问题 Is there a way to handle exceptions within a template in jinja2? {% for item in items %} {{ item|urlencode }} <-- item contains a unicode string that contains a character causes urlencode to throw KeyError {% endfor %} How do I handle that exception so that I can just skip that item or handle it without forcing the entire template rendering to fail? Thanks! 回答1: {% for item in items %} {{ item | custom_urlencode_filter }} {% endfor %} Then in whatever file you have setting up your jinja2

问题 Is there a way to handle exceptions within a template in jinja2? {% for item in items %} {{ item|urlencode }} <-- item contains a unicode string that contains a character causes urlencode to throw KeyError {% endfor %} How do I handle that exception so that I can just skip that item or handle it without forcing the entire template rendering to fail? Thanks! 回答1: {% for item in items %} {{ item | custom_urlencode_filter }} {% endfor %} Then in whatever file you have setting up your jinja2

问题 Is there a way to handle exceptions within a template in jinja2? {% for item in items %} {{ item|urlencode }} <-- item contains a unicode string that contains a character causes urlencode to throw KeyError {% endfor %} How do I handle that exception so that I can just skip that item or handle it without forcing the entire template rendering to fail? Thanks! 回答1: {% for item in items %} {{ item | custom_urlencode_filter }} {% endfor %} Then in whatever file you have setting up your jinja2

问题 I have a small Python web app (written in Flask) that uses sqlalchemy to persist data to the database. When I try to insert a duplicate row, an exception is raised, something like this: (psycopg2.errors.UniqueViolation) duplicate key value violates unique constraint "uix_my_column" I would like to wrap the exception and re-raise my own so I can add my own logging and messaging that is specific to that particular error. This is what I tried (simplified): from db import DbApi from my_exceptions

问题 How do we correctly display exception message in custom 403 error in Django? In my signup view I am using: class SignUpView(LoginRequiredMixin, PermissionRequiredMixin, CreateView): login_url = 'error_403' # .... # ... permission_denied_message = 'You are not allowed this transaction!! Ha Ha!!' # raise PermissionDenied() # ('permission_denied_message') raise_exception = True Now how do I display the message (" permission_denied_message "?) in my custom 403.html ? This is my function to render

问题 I'm working on macOS with JDK8. In catch, I have to give the entire name of exception like in this case (ArithmeticException e) instead of (Exception e) to run the code. If I use (Exception e) it gives an error that I'm not getting on windows os. why is that?? and how should I solve this?? The code works perfectly on windows OS with JDK8. On macOS work perfectly if the proper name of the exception (ArithmeticException e) is given. import java.util.*; public class ExceptionDemo { public static