一、背景
项目在启动的时候会把数据字典加载到redis中,实体类的字典名称通过get获得,这时候只有一个数据库。现在业务做了修改,后台是多数据源,字典加载到redis中只加载到了主库,如果从从库获取数据,从库的数据字典获取不到,所以我从实体类下手。
二:代码
工具类:
import com.spcp.qypt.aqjc.productionCell.mapper.SyncDatabaseSysDataMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
@Component
public class SyncDatabaseSysDataUtil {
private static SyncDatabaseSysDataMapper syncDatabaseSysDataMapper;
@Autowired
public void setApplicationContext(SyncDatabaseSysDataMapper syncDatabaseSysDataMapper){
SyncDatabaseSysDataUtil.syncDatabaseSysDataMapper=syncDatabaseSysDataMapper;
}
public static String getDataNameById(String id) {
String data = syncDatabaseSysDataMapper.getDataNameById(id);
return data == null ? "" : data;
}
}
DAO层:
import com.baomidou.dynamic.datasource.annotation.DS;标签:实体类,String,字典,DAO,调用,import,SyncDatabaseSysDataMapper,syncDatabaseSysDataMapper From: https://www.cnblogs.com/IWishRich/p/17761471.html
import org.apache.ibatis.annotations.Mapper;
@Mapper
@DS("database2")
public interface SyncDatabaseSysDataMapper {
String getDataNameById(String id);
}
三、总结