Request processing failed; nested exception is org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.type.TypeException: Could not set parameters for mapping: ParameterMapping{property='userName', mode=IN, javaType=class java.lang.String, jdbcType=null, numericScale=null, resultMapId='null', jdbcTypeName='null', expression='null'}. Cause: org.apache.ibatis.type.TypeException: Error setting non null for parameter #1 with JdbcType null . Try setting a different JdbcType for this parameter or a different configuration property. Cause: java.sql.SQLException: Parameter index out of range (1 > number of parameters, which is 0).解决办法
时间: 2024-04-21 22:25:09 浏览: 24
这个错误提示中提到了两个问题,分别是JdbcType为null和参数索引超出范围。可以尝试以下解决方案:
1. 设置JdbcType:根据错误提示,可以尝试设置不同的JdbcType,以解决JdbcType为null的问题。例如,如果参数是一个字符串类型的参数,可以设置JdbcType为VARCHAR。
2. 检查参数索引:错误提示中还提到了参数索引超出范围的问题,这可能是由于在SQL语句中指定了参数,但实际传递的参数数量与SQL语句中的参数数量不匹配导致的。所以,需要仔细检查SQL语句和传递的参数,确保它们的数量和顺序是一致的。
如果上述方法都无法解决问题,还可以检查一下MyBatis和数据库连接的配置是否正确,以及是否有其他错误导致了这个异常。如果还是无法解决,可以尝试将错误信息和相关代码提交到相关的论坛或社区,寻求帮助。
相关问题
nested exception is org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.
nested exception is org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException:
Error querying database. Cause: org.apache.ibatis.executor.ExecutorException: A query was run and no Result Maps were found for the Mapped Statement 'com.example.mapper.UserMapper.getUserById'. It's likely that neither a Result Type nor a Result Map was specified.
Cause: org.apache.ibatis.executor.ExecutorException: A query was run and no Result Maps were found for the Mapped Statement 'com.example.mapper.UserMapper.getUserById'. It's likely that neither a Result Type nor a Result Map was specified.
This exception is thrown when there is an issue with executing a query using MyBatis framework. In this case, the nested exception is org.apache.ibatis.exceptions.PersistenceException, which indicates that there was an error querying the database.
The specific error message states that no Result Maps were found for the Mapped Statement 'com.example.mapper.UserMapper.getUserById'. This means that either a Result Type or a Result Map was not specified for the query.
To resolve this issue, you need to make sure that the appropriate Result Type or Result Map is specified for the query in the MyBatis mapping file (XML) or in the annotation-based configuration.
Request processing failed; nested exception is org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException:
这是一个关于 MyBatis 框架的异常信息。具体错误是 "request processing failed; nested exception is org.mybatis.spring.mybatissystemexception: nested exception is org.apache.ibatis.exceptions.persistenceexception"。这表明在使用 MyBatis 进行数据持久化操作时出现了异常。可能是数据库连接问题、SQL 语法错误等原因导致的。建议检查应用程序的配置以及数据库访问的相关代码来定位并解决此问题