Request processing failed; nested exception is java.lang.NullPointerException
在控制檯顯示serviceimpl中定義的方法始終空指針錯誤，檢查了很久。 對於這個錯誤在service中少了@Autowired自動注入 修改： 瀏覽器報錯： Type Exception Report Message Request processing failed; nested exception is java.lang.NullPointerException Description
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- 1. Request processing failed; nested exception is java.lang.NullPointerException
- 2. （HTTP Status 500）Request processing failed; nested exception is java.lang.NullPointerException
- 3. HTTP Status 500 - Request processing failed; nested exception is java.lang.NullPointerException
- 4. Request processing failed; nested exception is org.springframework.dao.InvalidDataAccessApiUsageExce
- 5. Request processing failed; nested exception is org.apache.ibatis.binding.Bin
- 6. Request processing failed; nested exception is org.springframework.dao.DataIntegrityViolationExcepti
- 7. Request processing failed; nested exception is org.springframework.jdbc.BadSqlGrammarException:
- 8. org.springframework.web.util.NestedServletException: Request processing failed; nested exception is
- 9. ssm報：HTTP Status 500 - Request processing failed; nested exception is java.lang.NullPointerException
- 10. SSM整合項目 報錯500 「」Request processing failed; nested exception is java.lang.NullPointerException」