JavaFX 表格Tableview读取显示数据以及显示按钮

FXML

Controller

 //前面创建文件生成的代码省略
 private ObservableList list = FXCollections.observableArrayList();

 private void showList(){

    list = FXCollections.observableArrayList();
    //每次显示清空一次列表
    list.clear();
    try {
    
        //链接数据库查询
        List UserLoad = MybatisUtil.getSqlSession().getMapper(UserDao.class).getUserList();
        
        //循环 
        for (UserLoad user : UserLoad) {

            list.add(user);  //list添加值对象
        }

    } finally {
        MybatisUtil.closeSqlSession();

    }
    
    //映射数据进每列
    ID.setCellValueFactory(new PropertyValueFactory("id"));
    Username.setCellValueFactory(new PropertyValueFactory("username"));
    Password.setCellValueFactory(new PropertyValueFactory("password"));
    Admin.setCellValueFactory(new PropertyValueFactory("admin"));
    Time.setCellValueFactory(new PropertyValueFactory("registrationdate"));
    Tel.setCellValueFactory(new PropertyValueFactory("telphone"));
    Email.setCellValueFactory(new PropertyValueFactory("email"));
    
     //添加按钮进列表
    Bj.setCellFactory((col)->{
    
                //UserLoad换成你自己的实体名称
                TableCell cell = new TableCell(){
                    @Override
                    protected void updateItem(String item, boolean empty) {
                        super.updateItem(item, empty);
                        button1 = new JFXButton("编辑");
                        button1.setStyle("-fx-background-color: #00bcff;-fx-text-fill: #ffffff");

                        button1.setOnMouseClicked((col) -> {

                            //获取list列表中的位置，进而获取列表对应的信息数据
                            UserLoad userLoad1 = list.get(getIndex());
                            //按钮事件自己添加

                        });

                        if (empty) {
                            //如果此列为空默认不添加元素
                            setText(null);
                            setGraphic(null);
                        } else {
                            this.setGraphic(button1);
                        }
                    }
                };
                return cell;
            }
    );

    Sc.setCellFactory((col)->{
                TableCell cell = new TableCell(){

                    @Override
                    public void updateItem(String item, boolean empty) {
                        super.updateItem(item, empty);
                        //按钮显示文字
                        button2 = new JFXButton("删除");
                        //设置按钮颜色
                        button2.setStyle("-fx-background-color: #00bcff;-fx-text-fill: #ffffff");
                        //按钮点击事件
                        button2.setOnMouseClicked((col) -> {
                         //获取list列表中的位置，进而获取列表对应的信息数据
                            UserLoad userLoad2 = list.get(getIndex());
                           //按钮事件自己添加
                        });

                        if (empty) {
                            //如果此列为空默认不添加元素
                            setText(null);
                            setGraphic(null);
                        } else {
                           //加载按钮
                            this.setGraphic(button2);
                        }
                    }



                };
                return cell;
            }
    );
    所有项目添加进list
    table.setItems(list);
}

  //点击查询显示列表
    public void cx(ActionEvent event) {
    showList();
   
    }