在表格视图的单元格中添加按钮

时间：2020-05-03 20:04:35

标签： java user-interface javafx tableview

我试图在TableView的单元格中添加一个按钮。我有一个对象列表（例如：商店经理），我想在表视图中添加它们。对于每个商店经理，我都希望有一个按钮..所以我需要在单元格中添加一个按钮。

这是用户（商店经理）类：

package model;

import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.scene.control.Button;
import javafx.scene.control.ChoiceBox;
import services.FileSystemService;

import java.nio.file.Path;

public class User {
   private String username;
   private String password;
   private String role;


   //VIEW PRODUCTS LIST
   private Button viewbtn;


   public User(){

   }
   public User(String username,String password, String role){
       this.username=username;
       this.password=password;
       this.role=role;
       this.viewbtn = new Button("View");
   }
   public String getPassword() {
       return password;
   }

   public String getRole() {
       return role;
   }

   public String getUsername() {
       return username;
   }

   public void setUsername(String username) {
       this.username = username;
   }

   public void setPassword(String password) {
       this.password = password;
   }

   public void setRole(String role) {
       this.role = role;
   }


   @Override
   public boolean equals(Object o) {
       if (this == o) return true;
       if (o == null || getClass() != o.getClass()) return false;

       User user = (User) o;

       if (!username.equals(user.username)) return false;
       if (!password.equals(user.password)) return false;
       return role.equals(user.role);
   }

   @Override
   public int hashCode() {
       int result = username.hashCode();
       result = 31 * result + password.hashCode();
       result = 31 * result + role.hashCode();
       return result;
   }

   @Override
   public String toString() {
       return "User{" +
               "username='" + username + '\'' +
               ", password='" + password + '\'' +
               ", role='" + role + '\'' +
               '}';
   }

   public Button getViewbtn() {
       return viewbtn;
   }
}

这是控制器类：

package customer;

import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.collections.transformation.FilteredList;
import javafx.collections.transformation.SortedList;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
import javafx.scene.control.TextField;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.stage.Stage;
import model.Product;
import model.User;
import services.FileSystemService;
import services.UserService;
import java.util.List;
import java.io.IOException;
import java.nio.file.Path;
import java.util.Objects;

public class CustomerController {

    public final ObservableList<User> stores = FXCollections.observableArrayList();

    private static List<User> users = UserService.getUsers();

   @FXML
   private TableView<User> tableview;
   @FXML
   private TableColumn<User,String> username;
   @FXML
   private TableColumn<User,Button> viewproducts;
   @FXML
   private TextField filterField;

    public static void openCustomerPanel() throws IOException {
        Parent customerWindow = FXMLLoader.load(CustomerController.class.getResource("/customer.fxml"));
        Scene customerScene = new Scene(customerWindow);

        Stage window = new Stage();

        window.setScene(customerScene);
        window.setTitle("Customer Panel");
        window.show();
    }

    public void initialize(){
        username.setCellValueFactory(new PropertyValueFactory<>("username"));
        viewproducts.setCellValueFactory(new PropertyValueFactory<User,Button>("viewbtn"));

        for(User user : users)
        {
            if(Objects.equals(user.getRole(),"Store"))
                stores.add(user);
        }

        FilteredList<User> filteredData = new FilteredList<>(stores, b -> true);
        filterField.textProperty().addListener((observable, oldValue, newValue) -> {
            filteredData.setPredicate(store -> {


                if (newValue == null || newValue.isEmpty()) {
                    return true;
                }
                String lowerCaseFilter = newValue.toLowerCase();

                if (store.getUsername().toLowerCase().indexOf(lowerCaseFilter) != -1 )
                    return true;
                else
                    return false;
            });
        });
        SortedList<User> sortedData = new SortedList<>(filteredData);

        sortedData.comparatorProperty().bind(tableview.comparatorProperty());

        tableview.setItems(sortedData);
    }





}

fxml文件：

<?xml version="1.0" encoding="UTF-8"?>

<?import javafx.scene.control.Button?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.control.TableColumn?>
<?import javafx.scene.control.TableView?>
<?import javafx.scene.control.TextField?>
<?import javafx.scene.layout.AnchorPane?>
<?import javafx.scene.layout.Pane?>
<?import javafx.scene.text.Font?>

<AnchorPane prefHeight="625.0" prefWidth="453.0" xmlns="http://javafx.com/javafx/11.0.1" xmlns:fx="http://javafx.com/fxml/1" fx:controller="customer.CustomerController">
   <children>
      <TableView fx:id="tableview" layoutX="29.0" layoutY="128.0" prefHeight="452.0" prefWidth="391.0">
        <columns>
          <TableColumn fx:id="username" prefWidth="198.39995765686035" text="Name" />
          <TableColumn fx:id="viewproducts" prefWidth="192.0" text="Action" />
        </columns>
      </TableView>
      <Label layoutX="29.0" layoutY="14.0" prefHeight="35.0" prefWidth="350.0" text="Select a store and start shopping !">
         <font>
            <Font size="22.0" />
         </font>
      </Label>
      <Pane prefHeight="625.0" prefWidth="11.0" style="-fx-background-color: #993399;" />
      <Button layoutX="270.0" layoutY="70.0" mnemonicParsing="false" prefHeight="26.0" prefWidth="149.0" text="View past orders" textFill="#cd1616" />
      <TextField fx:id="filterField" layoutX="42.0" layoutY="71.0" promptText="Search ..." />
   </children>
</AnchorPane>

我有此错误： 仅当我输入按钮的getter方法时，才会出现错误。

Exception in Application start method
java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:389)
    at com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:328)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:767)
Caused by: java.lang.RuntimeException: Exception in Application start method
    at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:917)
    at com.sun.javafx.application.LauncherImpl.lambda$launchApplication$1(LauncherImpl.java:182)
    at java.lang.Thread.run(Thread.java:748)
Caused by: com.fasterxml.jackson.databind.JsonMappingException: Cannot find a deserializer for non-concrete Map type [map type; class javafx.collections.ObservableMap, [simple type, class java.lang.Object] -> [simple type, class java.lang.Object]]
 at [Source: (File); line: 1, column: 1]
    at com.fasterxml.jackson.databind.JsonMappingException.from(JsonMappingException.java:309)
    at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCache2(DeserializerCache.java:268)
    at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCacheValueDeserializer(DeserializerCache.java:244)
    at com.fasterxml.jackson.databind.deser.DeserializerCache.findValueDeserializer(DeserializerCache.java:142)
    at com.fasterxml.jackson.databind.DeserializationContext.findNonContextualValueDeserializer(DeserializationContext.java:469)
    at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.resolve(BeanDeserializerBase.java:473)
    at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCache2(DeserializerCache.java:293)
    at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCacheValueDeserializer(DeserializerCache.java:244)
    at com.fasterxml.jackson.databind.deser.DeserializerCache.findValueDeserializer(DeserializerCache.java:142)
    at com.fasterxml.jackson.databind.DeserializationContext.findNonContextualValueDeserializer(DeserializationContext.java:469)
    at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.resolve(BeanDeserializerBase.java:473)
    at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCache2(DeserializerCache.java:293)
    at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCacheValueDeserializer(DeserializerCache.java:244)
    at com.fasterxml.jackson.databind.deser.DeserializerCache.findValueDeserializer(DeserializerCache.java:142)
    at com.fasterxml.jackson.databind.DeserializationContext.findNonContextualValueDeserializer(DeserializationContext.java:469)
    at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.resolve(BeanDeserializerBase.java:473)
    at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCache2(DeserializerCache.java:293)
    at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCacheValueDeserializer(DeserializerCache.java:244)
    at com.fasterxml.jackson.databind.deser.DeserializerCache.findValueDeserializer(DeserializerCache.java:142)
    at com.fasterxml.jackson.databind.DeserializationContext.findNonContextualValueDeserializer(DeserializationContext.java:469)
    at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.resolve(BeanDeserializerBase.java:473)
    at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCache2(DeserializerCache.java:293)
    at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCacheValueDeserializer(DeserializerCache.java:244)
    at com.fasterxml.jackson.databind.deser.DeserializerCache.findValueDeserializer(DeserializerCache.java:142)
    at com.fasterxml.jackson.databind.DeserializationContext.findNonContextualValueDeserializer(DeserializationContext.java:469)
    at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.resolve(BeanDeserializerBase.java:473)
    at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCache2(DeserializerCache.java:293)
    at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCacheValueDeserializer(DeserializerCache.java:244)
    at com.fasterxml.jackson.databind.deser.DeserializerCache.findValueDeserializer(DeserializerCache.java:142)
    at com.fasterxml.jackson.databind.DeserializationContext.findNonContextualValueDeserializer(DeserializationContext.java:469)
    at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.resolve(BeanDeserializerBase.java:473)
    at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCache2(DeserializerCache.java:293)
    at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCacheValueDeserializer(DeserializerCache.java:244)
    at com.fasterxml.jackson.databind.deser.DeserializerCache.findValueDeserializer(DeserializerCache.java:142)
    at com.fasterxml.jackson.databind.DeserializationContext.findContextualValueDeserializer(DeserializationContext.java:446)
    at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.createContextual(CollectionDeserializer.java:183)
    at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.createContextual(CollectionDeserializer.java:27)
    at com.fasterxml.jackson.databind.DeserializationContext.handleSecondaryContextualization(DeserializationContext.java:684)
    at com.fasterxml.jackson.databind.DeserializationContext.findRootValueDeserializer(DeserializationContext.java:484)
    at com.fasterxml.jackson.databind.ObjectMapper._findRootDeserializer(ObjectMapper.java:4621)
    at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:4430)
    at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3319)
    at services.UserService.loadUsersFromFile(UserService.java:44)
    at Main.start(Main.java:26)
    at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$8(LauncherImpl.java:863)
    at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$7(PlatformImpl.java:326)
    at com.sun.javafx.application.PlatformImpl.lambda$null$5(PlatformImpl.java:295)
    at java.security.AccessController.doPrivileged(Native Method)
    at com.sun.javafx.application.PlatformImpl.lambda$runLater$6(PlatformImpl.java:294)
    at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
    at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
    at com.sun.glass.ui.win.WinApplication.lambda$null$4(WinApplication.java:186)
    ... 1 more
Caused by: java.lang.IllegalArgumentException: Cannot find a deserializer for non-concrete Map type [map type; class javafx.collections.ObservableMap, [simple type, class java.lang.Object] -> [simple type, class java.lang.Object]]
    at com.fasterxml.jackson.databind.deser.BasicDeserializerFactory.createMapDeserializer(BasicDeserializerFactory.java:1358)
    at com.fasterxml.jackson.databind.deser.DeserializerCache._createDeserializer2(DeserializerCache.java:387)
    at com.fasterxml.jackson.databind.deser.DeserializerCache._createDeserializer(DeserializerCache.java:349)
    at com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCache2(DeserializerCache.java:264)
    ... 51 more
Exception running application Main

0 个答案:

没有答案
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