mybatis关联查询一对多问题解决，将表中对应的多条数据以list形式存储

	
		insert
		into gms_map_layer (
	    map_id,
	    layer_id,
	    name,
	    has_index,
	    datasource_id,
	    display_order,
	    geo_type,
	    visible,
	    create_time,
	    update_time,
	    data_layer_name,
	    editable,
	    category,
	    sub_category
		) values (
	    #{mapId},
	    #{layerId},
	    #{name},
	    #{hasIndex},
	    #{datasourceId},
	    #{displayOrder},
	    #{geoType},
	    #{visible},
	    #{createTime},
	    #{updateTime},
	    #{dataLayerName},
	    #{editable},
	    #{category},
	    #{subCategory}
		)
	

	
		select * from gms_map_layer
		
			1=1
		    
		    	and  id=#{id}
		    
		    
		    	and  map_id=#{mapId}
		    
		    
		    	and  layer_id=#{layerId}
		    
		    
		    	and  name=#{name}
		    
		    
		    	and  has_index=#{hasIndex}
		    
		    
		    	and  datasource_id=#{datasourceId}
		    
		    
		    	and  display_order=#{displayOrder}
		    
		    
		    	and  visible=#{visible}
		    
		    
		    	and  geo_type=#{geoType}
		    
		    
		    	and  create_time=#{createTime}
		    
		    
		    	and  update_time=#{updateTime}
		    
		    
		    	and  data_layer_name=#{dataLayerName}
		    
		    
		    	and  editable=#{editable}
		    
		    
		    	and  category=#{category}
		    
		    
		    	and  sub_category=#{subCategory}
		    
		
		order by display_order asc
	
	
    
		select * from gms_map_layer
		where map_id=#{mapId}
	
	
	
	
		select l.id,l.name,'C_'||l.category as category,l.sub_category,
		min(s.min_zoom) as min_zoom,max(s.max_zoom) as max_zoom
		from gms_map_layer l,gms_map_layer_style s	
		where map_id=#{mapId} and l.id=s.map_layer_id
		and l.category not in ('40001') 
		and l.name not in ('10001_176','10001_177','10001_178','20014_2')
		group by l.id,l.name,l.category,l.sub_category
		order by l.category,l.sub_category
	
	
	
		select * from gms_map_layer
		where map_id=#{mapId} and category=#{category}
	
	
	
		select * from gms_map_layer
		where
		id in
		
			#{item}
		
	
	

	
		delete from gms_map_layer
		where id = #{id}
	

	
		delete from gms_map_layer
		where
		id in
		
			#{item}
		
	

	
		update gms_map_layer
		
		    
		    	id=#{id},
		    
		    
		    	map_id=#{mapId},
		    
		    
		    	layer_id=#{layerId},
		    
		    
		    	name=#{name},
		    
		    
		    	has_index=#{hasIndex},
		    
		    
		    	datasource_id=#{datasourceId},
		    
		    
		    	display_order=#{displayOrder},
		    
		    
		    	visible=#{visible},
		    
		    
		    	geo_type=#{geoType},
		    
		    
		    	create_time=#{createTime},
		    
		    
		    	update_time=#{updateTime},
		    
		    
		    	data_layer_name=#{dataLayerName},
		    
		    
		    	editable=#{editable},
		    
		    
		    	category=#{category},
		    
		    
		    	sub_category=#{subCategory},
		    
		
		where id=#{id}
	

	
		
		
	     
	     
	     
	     
	     
	     
	    
	     
	     
	    
	     
	     
	    
	    
	    
	
	
	
	
		
		
	     
	     
	    
	    
	    
	
	
	
		
		
	     
	     
	     
	     
	     
	     
	    
	     
	     
	    
	     
	     
	    
	    
	
	
	
		select columnname from gds_meta_field where modelid=#{modelid} and dbindex=1;
	
	
			select gm.name gm_name
	   		 from gms_map_layer gl 
	    	join gms_map gm 
			on  gl.map_id=gm.id 
			where gl.layer_id=#{id};
	
	
		select gl.createdate gl_createdate,gl.id gl_id,gl.layername gl_name,gmf.id gmf_id,
			gmf.fieldtitle fieldTitle,gmf.fieldname fieldName,gmf.columnname columnName,gmf.fieldtype fieldType,
			gmf.fieldsize fieldSize,gmf.fieldinput fieldInput,gmf.fieldinputfilter fieldInputFilter,
			gmf.defaultvalue defaultValue,gmf.readonly readOnly,gmf.fieldorder fieldOrder,gmf.remark remark,
			gmf.dbindex dbindex,gmf.modelid modelid 
		from gds_layer gl,gds_meta_field gmf
		where gl.modelid=gmf.modelid and gl.id=#{id};