MyBatis Error: Invalid bound statement (not found) - mybatis

Question

Here is the stack trace when I try to execute a simple query using MyBatis:
org.apache.ibatis.binding.BindingException: Invalid bound statement (not found): com.ppcredit.gypsophila.mapper.GypsophilaVarsStatisticsMapper.selectBySql
at org.apache.ibatis.binding.MapperMethod$SqlCommand.<init>(MapperMethod.java:225)
at org.apache.ibatis.binding.MapperMethod.<init>(MapperMethod.java:48)
at org.apache.ibatis.binding.MapperProxy.cachedMapperMethod(MapperProxy.java:65)
at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:58)
at com.sun.proxy.$Proxy110.selectBySql(Unknown Source)
Here is a method from my class:
/**
* use the sql to query result
*
* #param sql
* #return
*/
List<LinkedHashMap<String, Object>> selectBySql(String sql, Map<String, Object> parms);
In this case, need want to execute SQL statement directly, the sql as below:
SELECT VELOCITY_VARS FROM PPC_GYPSOPHILA_VARS_STATISTICS WHERE SCENARIO_ID=#{scenarioId} and TACTIC_ID=#{flowId} and CREATE_USER=#{userId}
all parameters of sql can be found in Map<String, Object> parms
I've done some research, but none of the solutions have worked for me. My Mapper class seems have some problems, but i dont know what's wrong.
Does anyone have an idea what's wrong here?
Thanks in advance

Answer 1

I am going to suppose that public interface GypsophilaVarsStatisticsMapper implements selectBySQL, in a correct way. I assumed you are import annotations if you are using it by:
import com.ppcredit.gypsophila.mapper.entity.GypsophilaVarsStatisti‌​cs;
import org.apache.ibatis.annotations.*;
public interface GypsophilaVarsStatisticsMapper {
List<GypsophilaVarsStatistics> selectBySQL(String sql,Map parameters);
/**your code**/
I am going to suppose likewise, that you have a class (let's call it test) whose scope allows to call GypsophilaVarsStatisticsMapper Interface (in other case import). That would i do is the folloging:
import com.ppcredit.gypsophila.mapper.entity.GypsophilaVarsStatisti‌​cs;
public class Test {
public static void main(String args[]) throws IOException{
Reader reader = Resources.getResourceAsReader("SqlMapConfig.xml");
SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(reader);
SqlSession session = sqlSessionFactory.openSession();
session.getConfiguration().addMapper(GypsophilaVarsStatisticsMapper.class);
GypsophilaVarsStatisticsMapper mapper = session.getMapper(GypsophilaVarsStatisticsMapper.class);
sql_string = 'SELECT VELOCITY_VARS FROM PPC_GYPSOPHILA_VARS_STATISTICS WHERE SCENARIO_ID=#{scenarioId} and TACTIC_ID=#{flowId} and CREATE_USER=#{userId}'
Map<String,Object) params = getParams() /* Your params */
List<GypsophilaVarsStatistics> result = mapper.selectBySQL(sql_string, params)
I suppose than you not are using MyBatis with a dependency injection framework like Spring. In this case SqlSessionFactory is supplied by this framework.