Spring boot + MyBatis, multiple datasources and mappers (java and xml), getting "Invalid bound statement (not found)" error - spring-boot

Question

I am trying to create a maven project to access Oracle database with more than one datasource configurations. Here is my code:
First DataSource Config:
package com.business.data.datasource;
import javax.sql.DataSource;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.autoconfigure.jdbc.DataSourceProperties;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.jdbc.DataSourceBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
#Configuration
public class FirstDbConfig {
#Primary
#Bean(name = "firstDataSourceProperties")
#ConfigurationProperties("first.datasource")
public DataSourceProperties dataSourceProperties() {
return new DataSourceProperties();
}
#Primary
#Bean(name = "firstDataSource")
#ConfigurationProperties(prefix = "first.datasource")
public DataSource dataSource(#Qualifier("firstDataSourceProperties") DataSourceProperties properties) {
return DataSourceBuilder.create().build();
}
#Bean(name = "firstSessionFactory")
#Primary
public SqlSessionFactoryBean firstSessionFactory(#Qualifier("firstDataSource") final DataSource firstDataSource)
throws Exception {
final SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();
sqlSessionFactoryBean.setDataSource(firstDataSource);
sqlSessionFactoryBean.setMapperLocations(new PathMatchingResourcePatternResolver().getResources("classpath:./mapper/FirstDbMapper.xml"));
sqlSessionFactoryBean.setTypeAliasesPackage("com.business.data.model");
return sqlSessionFactoryBean;
}
}
Second DataSource Config:
package com.business.data.datasource;
import javax.sql.DataSource;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.autoconfigure.jdbc.DataSourceProperties;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.jdbc.DataSourceBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
#Configuration
public class SecondDbConfig {
#Primary
#Bean(name = "secondDataSourceProperties")
#ConfigurationProperties("second.datasource")
public DataSourceProperties dataSourceProperties() {
return new DataSourceProperties();
}
#Bean(name = "secondDataSource")
#ConfigurationProperties(prefix = "second.datasource")
public DataSource dataSource(#Qualifier("secondDataSourceProperties") DataSourceProperties properties) {
return DataSourceBuilder.create().build();
}
#Bean(name = "secondSessionFactory")
public SqlSessionFactoryBean secondSessionFactory(#Qualifier("secondDataSource") final DataSource firstDataSource)
throws Exception {
final SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();
sqlSessionFactoryBean.setDataSource(firstDataSource);
sqlSessionFactoryBean.setMapperLocations(new PathMatchingResourcePatternResolver().getResources("classpath:./mapper/SecondDbMapper.xml"));
sqlSessionFactoryBean.setTypeAliasesPackage("com.business.data.model");
return sqlSessionFactoryBean;
}
}
First Mapper interface:
package com.business.data.repository;
import java.util.List;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;
import com.business.data.model.PersonDetail;
import org.springframework.stereotype.Repository;
#Repository
#Mapper
public interface FirstDbMapper {
public List<PersonDetail> getUserData(#Param("firstName") String firstName, #Param("lastName") String lastName);
}
Second Mapper interface:
package com.business.data.repository;
import java.util.List;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;
import com.business.data.model.PersonDetail;
import org.springframework.stereotype.Repository;
#Repository
#Mapper
public interface SecondDbMapper {
public List<PersonDetail> getStaffData(#Param("firstName") String firstName, #Param("lastName") String lastName);
}
src/main/resources/mapper/FirstMapper.xml
<?xml version = "1.0" encoding = "UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<!-- namespace must indicate mapper interface full package path . It is an alias here-->
<mapper namespace = "com.business.data.repository.FirstDbMapper">
<select id = "getUserData" parameterType = "map" resultMap = "personDetailMap">
SELECT *
FROM user
WHERE UPPER(first_name) LIKE UPPER(#{firstName}||'%')
AND UPPER(last_name) LIKE UPPER(#{lastName}||'%')
</select>
...
</mapper>
src/main/resources/mapper/SecondMapper.xml
<?xml version = "1.0" encoding = "UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<!-- namespace must indicate mapper interface full package path . It is an alias here-->
<mapper namespace = "com.business.data.repository.SecondDbMapper">
<select id = "getStaffData" parameterType = "map" resultMap = "personDetailMap">
SELECT *
FROM staff
WHERE UPPER(first_name) LIKE UPPER(#{firstName}||'%')
AND UPPER(last_name) LIKE UPPER(#{lastName}||'%')
</select>
...
</mapper>
Service class is like
#Autowired
FirstDbMapper firstDbMapper;
public List<PersonDetail> getUser(String fName, String lName) throws MyServiceException {
...
try {
userList = firstDbMapper.getUserData(fName, lName);
} catch (Exception e) {
...
}
return userList;
}
application.properties:
first.datasource.jdbc-url=jdbc:oracle:thin:#host01:1561:db1
first.datasource.username=user1
first.datasource.password=password1
second.datasource.jdbc-url=jdbc:oracle:thin:#host02:1561:db2
second.datasource.username=user2
second.datasource.password=password2
I also have #MapperScan("com.business.data.repository") in my spring boot application java.
I can only make one datasource work, which is the one with #Primary annotation. I swapped #Primary between the two configuration, always the one with #Primary worked, the other got "Invalid bound statement (not found)" error.
Can anyone help me out?
Thanks!

Answer 1

You can use the #MapperScan annotation on a configuration class to attach mappers to the different session factories. I find it convenient to place mappers in different packages like this:
#MapperScan(basePackages="mapper.package1", sqlSessionFactoryRef="firstSessionFactory")
#MapperScan(basePackages="mapper.package2", sqlSessionFactoryRef="secondSessionFactory")

Answer 2

The issue was resolved by using HikariDataSource.
#Primary
#Bean(name = FIRST_DATASOURCE)
#ConfigurationProperties(prefix = "first.datasource")
public DataSource dataSourceFirst() {
return DataSourceBuilder.create().type(HikariDataSource.class).build();
}