将按钮添加到vaadin JPA容器表

我需要为表格的每一行添加按钮。表的容器数据源是JPA容器。怎么做？我成功地为数据源不是JPA容器的表添加了按钮。我就是这么做的：

testable.addContainerProperty("button", Button.class, null);
Button btt = new Button("test");
Item newrow = testable.addItem("first");
newrow.getItemProperty("button").setValue(btt);

但是如果我声明可测试的数据源：testable.setContainerDataSourcejpa_test；

---

它不起作用。有人能帮我吗？首先，创建示例类：

public class ExampleBean {
    private Integer id;
    private Button button;

    public ExampleBean() {
        button = new Button("Test") {
            {
                addClickListener(new ClickListener() {
                    @Override
                    public void buttonClick(ClickEvent event) {
                        // code here
                    }
                });
            }
        }
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public Integer getId() {
        return id;
    }

    public void setButton(Button button) {
        this.id = id;
    }

    public Button getButton() {
        return button;
    }

    // ToString, Equals and/or HashCode methods if necessary
}

第二，创建容器：

private BeanItemContainer<ExampleBean> exampleBeanItemContainer = new BeanItemContainer<ExampleBean>(ExampleBean.class);

最后，设置表格标题和表格标题可见性：

table.setVisibleColumns(new Object[] { "id", "button" });
table.setColumnHeaders(new String[] { "ID", "Button" });

---

首先，创建示例类：

public class ExampleBean {
    private Integer id;
    private Button button;

    public ExampleBean() {
        button = new Button("Test") {
            {
                addClickListener(new ClickListener() {
                    @Override
                    public void buttonClick(ClickEvent event) {
                        // code here
                    }
                });
            }
        }
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public Integer getId() {
        return id;
    }

    public void setButton(Button button) {
        this.id = id;
    }

    public Button getButton() {
        return button;
    }

    // ToString, Equals and/or HashCode methods if necessary
}

第二，创建容器：

private BeanItemContainer<ExampleBean> exampleBeanItemContainer = new BeanItemContainer<ExampleBean>(ExampleBean.class);

最后，设置表格标题和表格标题可见性：

table.setVisibleColumns(new Object[] { "id", "button" });
table.setColumnHeaders(new String[] { "ID", "Button" });

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是否尝试使用addGeneratedColumn？是否尝试使用addGeneratedColumn？JPA容器与BeanItemContainer完全不同JPA容器与BeanItemContainer完全不同