ssm报：HTTP Status 500 - Request processing failed; nested exception is java.lang.NullPointerException

时间 2021-07-12

标签 @PathVariable ssm报错空指针栏目 HTTP/TCP 繁體版

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SSM项目报：HTTP Status 500 - Request processing failed; nested exception is java.lang.NullPointerException 错误！这个错误可能是因为你在Controller中接收页面传过去的id接收失败，而且{itemId}下面会有一个黄色的波浪线解决这个错误只需要在方法的参数前面加上@PathVariable，

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1. （HTTP Status 500）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 com.alibaba.dubbo.rpc.RpcException
4. HTTP Status 500 - Request processing failed; nested exception is org.apache.ibatis.binding.BindingEx
5. HTTP Status 500 - Request processing failed; nested exception is org.springframework.jdbc.BadSqlGram
6. HTTP Status 500 - Request processing failed； nested exception is org.mybatis.spring.MyBatisSystemExc
7. HTTP Status 500 - Request processing failed； nested exception is org.springframework.jdbc.BadSqlGram
8. Request processing failed; nested exception is java.lang.NullPointerException
9. SSM整合项目报错500 “”Request processing failed; nested exception is java.lang.NullPointerException”
10. HTTP Status 500 - Handler processing failed; nested exception is java.lang.NoSuchMethodError:

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