java.lang.IllegalArgumentException: Property 'sqlSessionFactory' or 'sqlSessionTemplate' are required exception when springmvc is integrated with mybatis

Today, when integrating springmvc and mybatis, I encountered such a problem when starting the server,

 by: java.lang.IllegalArgumentException: Property 'sqlSessionFactory' or 'sqlSessionTemplate' are required at org.springframework.util.Assert.notNull(Assert.java:112)

Exception means missing sqlSessionFactory or sqlSessionTemplate

My dao layer is to use inheritance SqlSessionDaoSupport and then directly through this.getSqlSession () to perform database operations.

Later, by searching and viewing the source code, it was found that mybatis-spring 1.2 version did not automatically inject sqlSessionFactory

The workaround is to inject manually

1 public class BaseDaoImpl extends SqlSessionDaoSupport {
2     
3     @Autowired
4     public void setSqlSessionFactory(SqlSessionFactory sqlSessionFactory){  
5             super.setSqlSessionFactory(sqlSessionFactory);  
6     }
7 }

Then you can use the dao implementation class to inherit BaseDaoImpl

 1 @Repository
 2 public class PersonDaoImpl extends BaseDaoImpl implements PersonDao {
 3 
 4     String ns = "cn.tx.mapper.PersonMapper.";
 5     @Override
 6     public void savePerson(Person p) {
 7         this.getSqlSession().insert(ns+"savePerson", p);
 8     }
 9 
10     @Override
11     public Person selectPersonById(Integer personId) {
12         return this.getSqlSession().selectOne(ns+"selectPersonById", personId);
13     }
14 
15     @Override
16     public void update(Person p) {
17         this.getSqlSession().update(ns + "update", p);
18     }
19 
20     @Override
21     public void delete(Integer personId) {
22         this.getSqlSession().delete(ns + "delete", personId);
23     }
24 
25     @Override
26     public List<Person> selectPersonByCondition(QueryCondition qc) {
27         return this.getSqlSession().selectList(ns + "selectPersonByCondition", qc);
28     }
29 
30 }