在Java中如何开发简易项目管理系统_项目管理系统项目实战解析

public class Project {
    private String projectName;
    private String manager;
    private String startDate;
    private String endDate;
    private String status;

    public Project(String projectName, String manager, String startDate, String endDate) {
        this.projectName = projectName;
        this.manager = manager;
        this.startDate = startDate;
        this.endDate = endDate;
        this.status = "未开始";
    }

    // getter 和 setter 方法省略
}

import java.util.*;

public class ProjectManager {
    private List<Project> projects = new ArrayList<>();

    public void addProject(Project project) {
        projects.add(project);
    }

    public void listProjects() {
        for (Project p : projects) {
            System.out.println(p.getProjectName() + " | 负责人：" + p.getManager() + " | 状态：" + p.getStatus());
        }
    }

    public Project findProjectByName(String name) {
        return projects.stream()
                .filter(p -> p.getProjectName().equalsIgnoreCase(name))
                .findFirst()
                .orElse(null);
    }
}

import java.io.*;
import java.util.*;

public class FileHandler {
    private static final String FILE_NAME = "projects.csv";

    public static void saveProjects(List<Project> projects) throws IOException {
        try (BufferedWriter writer = new BufferedWriter(new FileWriter(FILE_NAME))) {
            for (Project p : projects) {
                writer.write(String.join(",", p.getProjectName(), p.getManager(),
                        p.getStartDate(), p.getEndDate(), p.getStatus()));
                writer.newLine();
            }
        }
    }

    public static List<Project> loadProjects() throws IOException {
        List<Project> projects = new ArrayList<>();
        File file = new File(FILE_NAME);
        if (!file.exists()) return projects;

        try (BufferedReader reader = new BufferedReader(new FileReader(file))) {
            String line;
            while ((line = reader.readLine()) != null) {
                String[] parts = line.split(",");
                if (parts.length >= 5) {
                    Project p = new Project(parts[0], parts[1], parts[2], parts[3]);
                    p.setStatus(parts[4]);
                    projects.add(p);
                }
            }
        }
        return projects;
    }
}

1. 添加项目
2. 查看所有项目
3. 搜索项目
4. 更新项目状态
5. 删除项目
6. 退出并保存