Table of Contents Solving UnicodeDecodeError: ‘utf-8’ codec can’t decode byte 0xce in position 130: invalid continuation byte wrong reason Solution 1. Specify the correct encoding method 2. Use error handling 3. Specify file encoding method Solve UnicodeDecodeError: ‘utf-8’ codec can’t decode byte 0xce in position 130: invalid continuation byte In Python programming, we often encounter […]
Tag: invalid
Solve ValueError: Invalid format string
Table of Contents Solve ValueError: Invalid format string wrong reason Solution 1. Use positional parameters 2. Use keyword arguments 3. Use indexes 4. Escape curly braces Summarize basic grammar Use positional parameters Use keyword arguments Format options Escape curly braces Solving ValueError: Invalid format string When using Python for string formatting, you may sometimes encounter […]
Solving TypeError: encoding’ is an invalid keyword argument for this function
Table of Contents Solving TypeError: ‘encoding’ is an invalid keyword argument for this function wrong reason Solution 1. Check Python version 2. Use the right functions 3. Check function parameters 4. Check file opening mode Sample code Summarize Practical application scenarios Sample code grammar open mode return value Usage example Solving TypeError: ‘encoding’ is an […]
Solving pywintypes.com_error: (-2147221005, Invalid class string, None, None)
Table of Contents wrong reason Solution 1. Make sure the class string of the COM object is correct 2. Install the correct COM components 3. Check the registration information of the COM object 4. Ensure that the number of Python and COM components is consistent 5. Update and upgrade related software 6. Reach out to […]
@Scope annotation is invalid? What’s going on
I believe everyone knows that there are six types of scope attributes: Value Meaning Effective condition singleton means that this Bean is a singleton. In the Spring container, only one instance will exist. prototype Multiple instance mode, each time a Bean is obtained from the Spring container, an instance of the Bean will be created. […]
Will using functions in MySQL invalidate indexes?
Article directory 1. Preparation 2. ChatGPT’s answer 3. Practical proof SQL1 SQL2 SQL3 SQL4 SQL5 4. Summary 1. Preparation First create the library table we want to test CREATE TABLE `lianhe_index` ( `id` int(11) NOT NULL AUTO_INCREMENT COMMENT ‘id’, `name` varchar(255) DEFAULT NULL, `age` int(11) DEFAULT NULL, `number` int(11) DEFAULT NULL, `create_time` datetime DEFAULT NULL […]
DOM acquisition exception analysis in dialog Error: Initialize failed: invalid dom
Analysis on the situation of placing DOM in dialog to obtain exception When putting the dom into the dialog, an abnormal error will often appear, indicating that the dom is invalid, just because 1. The dialog must be opened before the dom can be mounted. 2. After the dialog is opened, when the open listening […]
System.Data.Entity.Core.EntityException: The underlying provider failed on Open. —> System.Invalid…
2017/8/15 20:55:21 [AgentPayQuery_205506102_1BBBB] System exception: System.Data.Entity.Core.EntityException: The underlying provider failed on Open. —> System.InvalidOperationException: The timeout has expired. The timeout has expired, but the connection has not been obtained from the pool. This may occur because all pooled connections are in use and the maximum pool size has been reached. at System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, […]
Solution: java.lang.IllegalArgumentException: Invalid character found in method name. HTTP method names
Table of Contents Problem Description Abnormal Solution 1. Check the method names in the code 2. Use appropriate HTTP request method constants 3. Use third-party HTTP libraries 4. Check the request URL 5. Debugging and logging in conclusion Problem description When writing web applications in Java, you sometimes encounter exceptions similar to ??java.lang.IllegalArgumentException: Invalid character […]
SpringSecurity 6 custom Filter invalid solution
Background Implement custom login by overriding org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter#attemptAuthentication I found that no matter how I log in, I still jump to the login page when accessing protected resources. Solution /** *Add this sentence */ myFilter.setSecurityContextRepository(new HttpSessionSecurityContextRepository()); Reference A little rain in Jiangnan Complete code package com.example.springsecuritytest; import com.google.code.kaptcha.impl.DefaultKaptcha; import com.google.code.kaptcha.util.Config; import jakarta.servlet.ServletException; import jakarta.servlet.http.HttpServletRequest; import jakarta.servlet.http.HttpServletResponse; […]