关于#java#的问题，请各位专家解答！

搜了很多不能解决，所以在这里求问一下，保存代码是这些，源码来自guithup

如果pom.xml正常，应该是maven环境没配置好

导入依赖

不知道你这个问题是否已经解决, 如果还没有解决的话:

• 这篇博客: 【java】随机分组：设计一个GUI程序，可以用来随机分组功能，如小组作业、球赛赛程中的 二、代码 部分也许能够解决你的问题, 你可以仔细阅读以下内容或跳转源博客中阅读:
  

  package week8;
  
  import java.io.File;
  import java.io.FileNotFoundException;
  import java.io.FileWriter;
  import java.io.IOException;
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.Scanner;
  import java.util.function.Consumer;
  
  import javafx.application.Application;
  import javafx.beans.property.SimpleIntegerProperty;
  import javafx.beans.property.SimpleStringProperty;
  import javafx.collections.FXCollections;
  import javafx.collections.ObservableList;
  import javafx.geometry.Insets;
  import javafx.geometry.Pos;
  import javafx.scene.Scene;
  import javafx.scene.control.Button;
  import javafx.scene.control.CheckBox;
  import javafx.scene.control.Label;
  import javafx.scene.control.TableColumn;
  import javafx.scene.control.TableView;
  import javafx.scene.control.TextArea;
  import javafx.scene.control.cell.PropertyValueFactory;
  import javafx.scene.input.Clipboard;
  import javafx.scene.input.ClipboardContent;
  import javafx.scene.layout.Background;
  import javafx.scene.layout.BackgroundFill;
  import javafx.scene.layout.BorderPane;
  import javafx.scene.layout.HBox;
  import javafx.scene.layout.VBox;
  import javafx.scene.paint.Color;
  import javafx.scene.text.Font;
  import javafx.stage.FileChooser;
  import javafx.stage.Stage;
  
  public class RandomGroup extends Application {
  
  	public static class Candidate {
  		private final SimpleIntegerProperty number;
  		private final SimpleStringProperty name;
  		private final SimpleIntegerProperty score;
  		private final SimpleIntegerProperty groupNo;
  
  		private Candidate(int number, String name, int score, int groupNo) {
  			this.number = new SimpleIntegerProperty(number);
  			this.name = new SimpleStringProperty(name);
  			this.score = new SimpleIntegerProperty(score);
  			this.groupNo = new SimpleIntegerProperty(groupNo);
  		}
  
  		public int getNumber() {
  			return this.number.get();
  		}
  
  		public void setNumber(int number) {
  			this.number.set(number);
  			;
  		}
  
  		public String getName() {
  			return this.name.get();
  		}
  
  		public void setName(String name) {
  			this.name.set(name);
  		}
  
  		public int getScore() {
  			return this.score.get();
  		}
  
  		public void setScore(int score) {
  			this.score.set(score);
  			;
  		}
  
  		public int getGroupNo() {
  			return this.groupNo.get();
  		}
  
  		public void setGroupNo(int groupNo) {
  			this.groupNo.set(groupNo);
  
  		}
  
  		@Override
  		public String toString() {
  			return "Candidate [number =" + getNumber() + ",name =" + getName() + ",score = " + getScore()
  					+ ",groupNo = " + getGroupNo() + "]";
  		}
  	}
  
  	private int canNum = 0;
  	private final int canMax = 100;
  	Candidate[] oldCans = new Candidate[canMax];
  	Candidate[] newCans = new Candidate[canMax];
  	ObservableList<Candidate> oldList = FXCollections.observableArrayList();
  	ObservableList<Candidate> newList = FXCollections.observableArrayList();
  
  	// 控件
  	TableView<Candidate> table = new TableView<>();
  	Button btLoad = new Button("导入名单");
  	Button btPaste = new Button("粘贴名单");
  
  	CheckBox cbHasSeed = new CheckBox("种子分组");
  	Button btDeleteSeed = new Button("清除种子");
  
  	Button btGroupAdd = new Button("+");
  	Button btGroupMin = new Button("-");
  	Label lbGroupNum = new Label("5");
  
  	Button btClear = new Button("清除分组");
  	Button btGroup = new Button("开始分组");
  	Button btCopy = new Button("复制分组");
  
  	// 表格栏
  	TableColumn idCol = new TableColumn("number");
  	TableColumn nameCol = new TableColumn("name");
  	TableColumn scoreCol = new TableColumn("score");
  	TableColumn groupCol = new TableColumn("groupNo");
  
  	// 粘贴名单
  	TextArea ta = new TextArea();
  	Button btYes = new Button("确定");
  	Button btNo = new Button("取消");
  
  	Label lbWarn = new Label();
  
  	public static void main(String[] args) {
  		Application.launch(args);
  	}
  
  	@Override
  	public void start(Stage primaryStage) throws Exception {
  		table.setEditable(true);
  		idCol.setVisible(false);
  		nameCol.setVisible(false);
  		scoreCol.setVisible(false);
  		groupCol.setVisible(false);
  		idCol.setMinWidth(50);
  		nameCol.setMinWidth(140);
  		scoreCol.setMinWidth(140);
  		groupCol.setMinWidth(140);
  		idCol.setCellValueFactory(new PropertyValueFactory<>("number"));
  		nameCol.setCellValueFactory(new PropertyValueFactory<>("name"));
  		scoreCol.setCellValueFactory(new PropertyValueFactory<>("score"));
  		groupCol.setCellValueFactory(new PropertyValueFactory<>("groupNo"));
  		table.getColumns().addAll(idCol, nameCol, scoreCol, groupCol);
  
  		Font font1 = new Font("Arial", 12);
  		btLoad.setFont(font1);
  		btPaste.setFont(font1);
  		cbHasSeed.setFont(font1);
  		btDeleteSeed.setFont(font1);
  		btGroupAdd.setFont(font1);
  		btGroupMin.setFont(font1);
  		lbGroupNum.setFont(font1);
  		btClear.setFont(font1);
  		btGroup.setFont(font1);
  		btCopy.setFont(font1);
  
  		Color color1 = new Color(0.8, 0.2, 0.6, 1);
  		btLoad.setTextFill(color1);
  		btPaste.setTextFill(color1);
  		btDeleteSeed.setTextFill(color1);
  		btGroupAdd.setTextFill(color1);
  		btGroupMin.setTextFill(color1);
  		btClear.setTextFill(color1);
  		btGroup.setTextFill(color1);
  		btCopy.setTextFill(color1);
  		cbHasSeed.setTextFill(color1);
  		lbGroupNum.setTextFill(color1);
  		btLoad.setStyle("-fx-border-color:#abbfff");
  		btPaste.setStyle("-fx-border-color:#abbfff");
  		btDeleteSeed.setStyle("-fx-border-color:#abbfff");
  		btGroupAdd.setStyle("-fx-border-color:#abbfff");
  		btGroupMin.setStyle("-fx-border-color:#abbfff");
  		btClear.setStyle("-fx-border-color:#abbfff");
  		btGroup.setStyle("-fx-border-color:#abbfff");
  		btCopy.setStyle("-fx-border-color:#abbfff");
  		table.setStyle("-fx-border-color:#abbfff");
  		btLoad.setBackground(new Background(new BackgroundFill(Color.GHOSTWHITE, null, null)));
  		btPaste.setBackground(new Background(new BackgroundFill(Color.GHOSTWHITE, null, null)));
  		btDeleteSeed.setBackground(new Background(new BackgroundFill(Color.GHOSTWHITE, null, null)));
  		btGroupAdd.setBackground(new Background(new BackgroundFill(Color.GHOSTWHITE, null, null)));
  		btGroupMin.setBackground(new Background(new BackgroundFill(Color.GHOSTWHITE, null, null)));
  		btClear.setBackground(new Background(new BackgroundFill(Color.GHOSTWHITE, null, null)));
  		btGroup.setBackground(new Background(new BackgroundFill(Color.GHOSTWHITE, null, null)));
  		btCopy.setBackground(new Background(new BackgroundFill(Color.GHOSTWHITE, null, null)));
  		table.setBackground(new Background(new BackgroundFill(Color.HONEYDEW, null, null)));
  
  		HBox hb = new HBox(5, btGroupMin, lbGroupNum, btGroupAdd);
  		hb.setAlignment(Pos.CENTER);
  
  		VBox vb = new VBox(10, new Label("名单设置"), btLoad, btPaste, new Label("种子设置"), cbHasSeed, btDeleteSeed,
  				new Label("分组数量"), hb, new Label(" "), btClear, btGroup, btCopy);
  		vb.setPrefWidth(80);
  		vb.setAlignment(Pos.TOP_CENTER);
  
  		BorderPane pane = new BorderPane();
  		pane.setCenter(table);
  		pane.setRight(vb);
  		pane.setPadding(new Insets(10));
  		pane.setBackground(new Background(new BackgroundFill(Color.AZURE, null, null)));
  
  		primaryStage.setTitle("随机分组");
  		primaryStage.setScene(new Scene(pane, 600, 400));
  		primaryStage.show();
  
  		// 粘贴名单
  		ta.setPromptText("请将名单粘贴在文本区内！");
  		ta.setPrefColumnCount(10);
  		ta.setPrefRowCount(8);
  		ta.setWrapText(true);
  		btYes.setPrefSize(50, 30);
  		btNo.setPrefSize(50, 30);
  
  		HBox choose = new HBox(20, btYes, btNo);
  		VBox vbox1 = new VBox(10, ta, choose);
  		choose.setAlignment(Pos.CENTER);
  		vbox1.setAlignment(Pos.CENTER);
  		vbox1.setPadding(new Insets(10));
  		vbox1.setBackground(new Background(new BackgroundFill(Color.ALICEBLUE, null, null)));
  
  		Stage stage1 = new Stage();
  		stage1.setScene(new Scene(vbox1, 300, 200));
  		stage1.setTitle("粘贴名单");
  
  		// 未粘贴提示
  		HBox hbox1 = new HBox(lbWarn);
  		hbox1.setPadding(new Insets(10));
  		hbox1.setAlignment(Pos.CENTER_LEFT);
  		hbox1.setBackground(new Background(new BackgroundFill(Color.ALICEBLUE, null, null)));
  
  		Font font2 = new Font("", 14);
  		lbWarn.setFont(font2);
  
  		Stage stage2 = new Stage();
  		stage2.setScene(new Scene(hbox1, 400, 50));
  
  		// 导入名单
  		btLoad.setOnAction(e -> {
  			table.getItems().remove(0, canNum);
  			FileChooser fc = new FileChooser();
  			File f = fc.showOpenDialog(primaryStage);
  			fileDeal(f);
  		});
  
  		// 粘贴名单
  		btPaste.setOnAction(e -> {
  			ta.setText(null);
  			stage1.show();
  		});
  		btYes.setOnAction(e -> {
  			if (ta.getText() != null) {
  				table.getItems().remove(0, canNum);
  				File a = new File("临时文件.txt");
  				try {
  					FileWriter fw = new FileWriter(a);
  					fw.write(ta.getText());
  					fw.flush();
  				} catch (IOException e1) {
  					e1.printStackTrace();
  				}
  				fileDeal(a);
  				a.delete();
  				stage1.close();
  			} else {
  				lbWarn.setText("文本区错误，请重新粘贴名单！");
  				stage2.setTitle("错误提示");
  				stage2.show();
  			}
  		});
  		btNo.setOnAction(e -> {
  			stage1.close();
  		});
  
  		// 清除种子
  		btDeleteSeed.setOnAction(e -> {
  			int groupNum = Integer.valueOf(lbGroupNum.getText());
  			if (canNum / groupNum >= 2) {
  				for (int i = 0; i < canNum - 1; i++) {
  					for (int j = 0; j < canNum - i - 1; j++) {
  						if (oldCans[j].getScore() < oldCans[j + 1].getScore()) {
  							Candidate temp = oldCans[j];
  							oldCans[j] = oldCans[j + 1];
  							oldCans[j + 1] = temp;
  						}
  					}
  				}
  				for (int i = 0; i < canNum; i++)
  					oldList.add(oldCans[i]);
  				table.getItems().remove(0, canNum);
  				table.setItems(oldList);
  				table.getItems().remove(0, groupNum);
  				canNum = table.getItems().size();
  			} else {
  				lbWarn.setText("单组人数存在仅有一人的情况，不可清除种子！");
  				stage2.setTitle("错误提示");
  				stage2.show();
  			}
  		});
  
  		// 分组数量+
  		btGroupAdd.setOnAction(e -> {
  			int i = Integer.valueOf(lbGroupNum.getText());
  			if (i < canNum) {
  				lbGroupNum.setText(String.valueOf(i + 1));
  			}
  		});
  		// 分组数量-
  		btGroupMin.setOnAction(e -> {
  			int i = Integer.valueOf(lbGroupNum.getText());
  			if (i > 2) {
  				lbGroupNum.setText(String.valueOf(i - 1));
  			}
  		});
  
  		// 清除分组
  		btClear.setOnAction(e -> {
  			table.getItems().remove(0, canNum);
  			table.setItems(null);
  			for (int i = 0; i < canNum; i++) {
  				oldCans[i].setGroupNo(0);
  				oldList.add(oldCans[i]);
  				newCans[i] = oldCans[i];
  			}
  			table.setItems(oldList);
  		});
  
  		// 开始分组
  		btGroup.setOnAction(e -> {
  			table.getItems().remove(0, canNum);
  			int groupNum = Integer.valueOf(lbGroupNum.getText());
  			ArrayList<Integer> list = new ArrayList<>();
  
  			if (cbHasSeed.isSelected()) {
  				for (int i = 0; i < groupNum; i++) {
  					list.add(i);
  				}
  
  				for (int i = 0; i < canNum - 1; i++) {
  					for (int j = 0; j < canNum - i - 1; j++) {
  						if (newCans[j].getScore() < newCans[j + 1].getScore()) {
  							Candidate temp = newCans[j];
  							newCans[j] = newCans[j + 1];
  							newCans[j + 1] = temp;
  						}
  					}
  				}
  
  				int index = 0;
  				while (index < canNum) {
  					Collections.shuffle(list);
  					for (int i = 0; i < groupNum && index < canNum; i++) {
  						newCans[index].setGroupNo(list.get(i) % groupNum + 1);
  						index++;
  					}
  				}
  			} else {
  				for (int i = 0; i < canNum; i++) {
  					list.add(i);
  				}
  				Collections.shuffle(list);
  
  				for (int j = 0; j < canNum; j++) {
  					newCans[j].setGroupNo(list.get(j) % groupNum + 1);
  				}
  			}
  
  			for (int i = 0; i < canNum - 1; i++) {
  				for (int j = 0; j < canNum - i - 1; j++) {
  					if (newCans[j].getGroupNo() > newCans[j + 1].getGroupNo()) {
  						Candidate temp = newCans[j];
  						newCans[j] = newCans[j + 1];
  						newCans[j + 1] = temp;
  					}
  				}
  			}
  			for (int i = 0; i < canNum; i++)
  				newList.add(newCans[i]);
  			table.setItems(newList);
  		});
  
  		// 复制分组
  		btCopy.setOnAction(e -> {
  			int groupNum = Integer.valueOf(lbGroupNum.getText());
  			if (newCans[0].getGroupNo() != 0) {
  				String s = "";
  				String a = "";
  				for (int i = 0; i < groupNum; i++) {
  					a = "第" + (i + 1) + "组: ";
  					for (Candidate m : newList) {
  						if (m != null) {
  							if (m.getGroupNo() == (i + 1))
  								a = a + m.getName() + " ";
  						}
  					}
  					a = a + "\n";
  					s += a;
  				}
  
  				Clipboard clipboard = Clipboard.getSystemClipboard();
  				ClipboardContent clipboardContent = new ClipboardContent();
  				clipboardContent.putString(s);
  				clipboard.setContent(clipboardContent);
  				lbWarn.setText("已将分组结果复制到剪切板！");
  				stage2.setTitle("成功提示");
  			} else {
  				lbWarn.setText("您还未分组！");
  				stage2.setTitle("错误提示");
  			}
  			stage2.show();
  		});
  	}
  
  	private void fileDeal(File x) {
  		try (Scanner b = new Scanner(x)) {
  			String text = "";
  			while (b.hasNextLine())
  				text += b.nextLine() + "\n";
  			textAnalyze(text);
  		} catch (FileNotFoundException e1) {
  			e1.printStackTrace();
  		}
  		table.setItems(oldList);
  	}
  
  	private void textAnalyze(String text) {
  		canNum = 0;
  		Consumer con = s -> {
  			String list[] = ((String) s).split(",");
  			oldCans[canNum] = new Candidate(canNum + 1, list[0], Integer.parseInt(list[1]), 0);
  			newCans[canNum] = new Candidate(canNum + 1, list[0], Integer.parseInt(list[1]), 0);
  			oldList.add(oldCans[oldList.size()]);
  			idCol.setVisible(true);
  			nameCol.setVisible(true);
  			groupCol.setVisible(true);
  			scoreCol.setVisible(true);
  			canNum++;
  		};
  
  		for (String s : text.split("\n"))
  			con.accept(s);
  		oldList.forEach(System.out::println);
  	}
  }
  

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