How to resolve MyBatis parameter setting exceptions?
When an exception occurs in setting MyBatis parameters, you can follow these steps to resolve it:
- Verify that the SQL statement is correct by ensuring that the parameter names, types, and order match the method parameters in the Mapper interface.
- Check the parameter types of the Mapper interface methods: Verify that the parameter types of the Mapper interface methods match those specified in the Mapper XML file. If the parameter types do not match, it may result in parameter setting exceptions.
- {name}
- Please provide the parameter name.
- Can you please clarify this parameter?
- The variable ${paramName}
- Check parameter naming conventions: ensure that parameter names comply with Java naming conventions, avoid using special characters or keywords as parameter names.
- Check the parameter passing method: verify if the parameters are being passed by position or by name. If using the named passing method, make sure the parameter names are correct.
If all the above steps have been confirmed to be correct, but parameter settings abnormalities still occur, consider checking the MyBatis log files to identify the specific cause of the exception and make necessary corrections.