解析 org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.type.TypeException: Could not set parameters for mapping: ParameterMapping{property='ss', mode=IN, javaType=class java.lang.Long, 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: com.kingbase8.util.KSQLException: The column index is out of range: 1, number of columns: 0.
时间: 2024-04-27 11:24:35 浏览: 35
这个错误通常是因为 MyBatis 在执行 SQL 时无法正确设置参数值导致的。根据错误信息,可能是由于参数类型不匹配或者参数个数不正确导致的。你可以检查一下 MyBatis 映射文件中的参数类型是否正确,并且确保参数个数与实际传递的参数个数一致。另外,根据错误信息中的 `The column index is out of range: 1, number of columns: 0`,也可以看出可能是由于 SQL 查询语句中的列数不正确导致的。你可以检查一下查询语句中的列数是否正确,并且确保查询结果集中包含了所需要的列。希望这个回答能够帮到你!
相关问题
org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.type.TypeException: Could not set parameters for mapping
org.mybatis.spring.MyBatisSystemException是MyBatis与Spring集成时可能出现的异常,通常是由于参数映射错误导致的。具体地,这个异常的原因是org.apache.ibatis.type.TypeException: Could not set parameters for mapping。
解决这个问题的方法是检查参数映射是否正确。确保在MyBatis的映射文件中,参数的名称和类型与Java对象的属性名称和类型匹配。另外,还需要确保在SQL语句中正确地引用了这些参数。
以下是一个示例,演示了如何解决这个问题:
```java
// 定义一个User类
public class User {
private Long id;
private String name;
// 省略其他属性和方法
}
// 在MyBatis的映射文件中,正确地映射参数
<select id="getUserById" resultType="User">
SELECT * FROM users WHERE id = #{id}
</select>
// 在Java代码中,使用正确的参数进行查询
Long userId = 1L;
User user = sqlSession.selectOne("getUserById", userId);
```
在上面的示例中,我们定义了一个User类,并在MyBatis的映射文件中正确地映射了参数。然后,在Java代码中,我们使用正确的参数进行查询。
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.
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