Case of key value when processing MyBatis return map in Springboot

In order to unify the different database returns the key value case inconsistency question, the special custom objectwrapperfactory to do the unified processing

1, first custom Mapwrapper

/** * 将Map的key全部转换为小写 * */public class MapKeyLowerWrapper extends MapWrapper {    public MapKeyLowerWrapper(MetaObject metaObject, Map<String, Object> map) {        super(metaObject, map);    }    @Override    public String findProperty(String name, boolean useCamelCaseMapping) {        return name==null?"":name.toLowerCase() ;    }}

2, Custom Objectwrapperfactory

public class MapWrapperFactory implements ObjectWrapperFactory {    @Override    public boolean hasWrapperFor(Object object) {         return object != null && object instanceof Map;    }    @Override    public ObjectWrapper getWrapperFor(MetaObject metaObject, Object object) {        return new MapKeyLowerWrapper(metaObject, (Map) object);    }}

3, add mapwrapperfactory configuration in MyBatis configuration

@Bean (name = "Sqlsessionfactory") @ConditionalOnBean (name = "DataSource") public sqlsessionfactory Sqlsessionfactorybean (@Qualifier ("DataSource") DataSource dataSource) {Sqlsessionfactorybean bean = new sqlsession        Factorybean ();        Bean.setobjectwrapperfactory (New Mapwrapperfactory ());        Bean.setdatasource (DataSource);        Add XML directory Resourcepatternresolver resolver = new Pathmatchingresourcepatternresolver ();            try {bean.setmapperlocations (resolver.getresources ("Classpath*:com/ultrapower/ioss/**/mapper/**/*.xml"));        return Bean.getobject ();            } catch (Exception e) {e.printstacktrace ();        throw new RuntimeException (e); }} @Bean ("Sqlsessiontemplate") @ConditionalOnBean (name = "Sqlsessionfactory") public sqlsessiontemplate Sqlsessiontemplate (@Qualifier ("Sqlsessionfactory") Sqlsessionfactory sqlsessionfactory) {return new Sq Lsessiontemplate (sqlsessionfactory);} @ConditionalOnBean (name = "DaTasource ") @Bean (name =" TransactionManager ") public Platformtransactionmanager TransactionManager (@Qualifier (" DataSource ") DataSource dataSource) {Datasourcetransactionmanager Datasourcetransactionmanager = new Datasourcetra        Nsactionmanager (DataSource); return Datasourcetransactionmanager;}

Springboot The case of the key value when MyBatis returns a map