1. Automatic error loading
the require of the bean .... A
of The Point has Injection The following Annotations:
- @ org.springframework.beans.factory.annotation.Autowired (= required to true)
troubleshooting steps:
1. Check the configuration file items springboot ;
2. @ SpringBootApplication and @Configuration notes overlap, and @Configuration higher priority, but incorrectly configured
2.The POM for postgresql: postgresql: jar : 42.2.5 is missing, no dependency information available
reasons: the use of project mvn the directory is not org.postgresql postgresql following
3.Error: (1, 38) java : the need <identifier>
Error: (. 3, 44 is) Java: required class, interface or enum
reasons: file name keyword repeated
4. . No operator matches the given name and argument type (s) You might need to casts add explicit type
reason: the question sql statement symbols, SLR quotes
5.org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name
reason
6.nullpointError null pointer exception
reasons: defines the type attribute in the service mapper of
7. ERROR: column "end_use_time" is of type timestamp without time zone
Cause: mapper data type error
8.can`t create a bean ....
reasons: mapper class file defines the data and mapper.xml not the same type, other possibilities, ** mapper.xml file id repeat, return data type error, .xml files are not loaded successfully;
9.Invalid bound of Statement (not found): com.medatc.disinfection.mapper.fdn.FilesMapper.selectFilesByIds
reasons: