Tutorials
Spring Boot
How to Log Request and Response in Spring Boot
In the production environment, logging of request and response in a spring boot
Create a Custom Endpoint in Spring Boot Actuator
Spring boot actuator can be used to monitor and manage the spring boot
How to get Thread Dump in Spring Boot
Thread dump in java provides all the state of currently existing threads in
How to Enable Disable Endpoints in Spring Boot Actuator
We’ll go over how to enable and disable actuator endpoints in a spring
Spring Boot Actuator Not Working – Troubleshoot
Spring Boot Actuator is not working because the spring boot actuator dependency is
Python
TypeError: can’t multiply sequence by non-int of type ‘float’
The TypeError: can’t multiply sequence by non-int of type ‘float’
AttributeError: ‘dict’ object has no attribute ‘append’
The python AttributeError: ‘dict’ object has no attribute ‘append’ error
AttributeError: ‘NoneType’ object has no attribute ‘append’
The AttributeError: ‘NoneType’ object has no attribute ‘append’ error happens
TypeError: unsupported operand type(s) for +: ‘NoneType’ and ‘int’
In python, TypeError: unsupported operand type(s) for +: ‘NoneType’ and
TypeError: unsupported operand type(s) for -: ‘str’ and ‘str’
The python error TypeError: unsupported operand type(s) for -: ‘str’
Spring Boot
java.lang.IllegalArgumentException: jdbcUrl is required with driverClassName
java.lang.IllegalArgumentException: jdbcUrl is required with driverClassName error occurs when Hikari
java.sql.SQLSyntaxErrorException: Table ‘dbname.hibernate_sequence’ doesn’t exist
java.sql.SQLSyntaxErrorException: Table ‘dbname.hibernate_sequence’ doesn’t exist error occurs when the hibernate_sequence
Table “BATCH_JOB_INSTANCE” not found; SQL statement – Spring Boot Batch
org.springframework.jdbc.BadSqlGrammarException: PreparedStatementCallback; bad SQL grammar [SELECT JOB_INSTANCE_ID, JOB_NAME from BATCH_JOB_INSTANCE
java.lang.IllegalArgumentException: URI is not absolute
java.lang. IllegalArgumentException: URI is not absolute occurs when a relative
Missing URI template variable for method parameter of type String
The spring boot exception Missing URI template variable for method parameter of type String occurs when the path variable name in the @RequestMapping annotation is different from the @PathVariable name. The name of the path variable should be the same in @RequestMapping and @PathVariable. If there is some mismatch, the exception Missing URI template variable for method parameter of type String would be thrown. The path variable is added as part of the request url in the @RequestMapping annotation. The path variable is covered by curly brackets. The path variable is added to the method parameter with a @PathVariable annotation. The name of the method parameter and the name of the path variable should be the same to avoid an exception Missing URI template variable ” for method parameter of type String. Exception The exception Missing URI template variable for method parameter of type String will