Java/w12/datacollect/model/Article.java

package com.example.datacollect.model;

import java.time.LocalDateTime;

public class Article {
    private String title;
    private String url;
    private String content;
    private LocalDateTime crawledAt;  // 新增：抓取时间

    // 构造函数自动初始化抓取时间
    public Article(String title, String url, String content) {
        this.title = title;
        this.url = url;
        this.content = content;
        this.crawledAt = LocalDateTime.now();
    }

    // Getter & Setter
    public String getTitle() { return title; }
    public void setTitle(String title) { this.title = title; }
    public String getUrl() { return url; }
    public void setUrl(String url) { this.url = url; }
    public String getContent() { return content; }
    public void setContent(String content) { this.content = content; }
    public LocalDateTime getCrawledAt() { return crawledAt; }
    public void setCrawledAt(LocalDateTime crawledAt) { this.crawledAt = crawledAt; }

    // 重写equals/hashCode：基于URL判断唯一性（增量抓取核心）
    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        Article article = (Article) o;
        return url != null ? url.equals(article.url) : article.url == null;
    }

    @Override
    public int hashCode() {
        return url != null ? url.hashCode() : 0;
    }

    @Override
    public String toString() {
        return "Article{" +
                "title='" + title + '\'' +
                ", url='" + url + '\'' +
                ", crawledAt=" + crawledAt +  // 新增字段到日志输出
                '}';
    }
}