In case you need to get selected items or property of this item from the table in SAP UI5, you need to add few lines of code in your controller file.
In SAP UI5 Controller.js
To get all selected items add these lines in *.controller.js file.
var oTable = this.getView().byId("Table");
var aItems = oTable.getSelectedItems();
If you need to get value of specific properties for your selected items, you need to add this.
var paramsObject = {
"param1" : [],
"param2" : []
};
for (let i = 0; i < aItems.length; i++){
paramsArray.param1.push(aItems[i].getBindingContext().getProperty("param1"));
paramsArray.param2.push(aItems[i].getBindingContext().getProperty("param2"));
}
Now you have an object with different array of params for every selected row, that you choose.