# JavaFX-Demo

**Repository Path**: Biubiuyuyu/JavaFX-Demo

## Basic Information

- **Project Name**: JavaFX-Demo
- **Description**: 使用JavaFX-Plus搭建的Demo，
- **Primary Language**: Java
- **License**: MIT
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 14
- **Forks**: 7
- **Created**: 2020-01-09
- **Last Updated**: 2023-12-05

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

## 基于JavaFX-Plus的Demo
### 需求说明
下载的论文经常需要保存为特定的名字，但是如果下载后再修改成指定格式，总是有点麻烦，这就需要有一个可视化界面能够简化这个操作。
重点是展示下载过程的进度条的界面和下载实体通过JavaFX-plus绑定。
### 效果展示
![demo](doc/Demo.gif)
### 具体设计
#### 控制器
```java
    @FXBind(
            {"url=${url.text}","savePath=${savePath.text}"}
    )
    @FXData
    Downloader downloader =new Downloader();


    @FXBind(
            {
                    "year=${@to_int(year.text)}","firstAuthor=${author1.text}","secondAuthor=${author2.text}",
                    "venue=${venue.text}","is_single=${is_single.selected}","name=${title.text}"
            }
    )
    @FXData
    Paper paper = new Paper();


    @FXBind(
            "progress=${downloader.download_rate}"
    )
    @FXML
    private ProgressBar progressBar;

    
```
#### 实体类
```java
package model;

import cn.edu.scau.biubiusuisui.annotation.FXEntity;
import cn.edu.scau.biubiusuisui.annotation.FXField;
import com.sun.tools.classfile.ConstantPool;

import java.io.*;
import java.net.HttpURLConnection;
import java.net.URL;

@FXEntity
public class Downloader {

    private int total;

    private int now;

    @FXField
    private String url;

    @FXField
    private String savePath;
    @FXField
    private Double download_rate = new Double(0.0);

    public void download(Paper paper) {
        Thread thread= new Thread(() -> {
            saveUrlAs(url, savePath, paper.toString(), "GET");
        });
        thread.setDaemon(true);
        thread.start();
    }

    public File saveUrlAs(String url, String filePath, String filename, String method) {
        //System.out.println("fileName---->"+filePath);
        //创建不同的文件夹目录
        File file = new File(filePath);
        //判断文件夹是否存在
        if (!file.exists()) {
            //如果文件夹不存在，则创建新的的文件夹
            file.mkdirs();
        }
        FileOutputStream fileOut = null;
        HttpURLConnection conn = null;
        InputStream inputStream = null;
        try {
            // 建立链接
            URL httpUrl = new URL(url);
            conn = (HttpURLConnection) httpUrl.openConnection();
            //以Post方式提交表单，默认get方式
            conn.setRequestMethod(method);
            conn.setDoInput(true);
            conn.setDoOutput(true);
            // post方式不能使用缓存
            conn.setUseCaches(false);
            //连接指定的资源
            conn.connect();

            double total = Double.valueOf(conn.getHeaderField("Content-Length"));
            //System.out.println(length);
            //获取网络输入流
            inputStream = conn.getInputStream();
            BufferedInputStream bis = new BufferedInputStream(inputStream);
            //判断文件的保存路径后面是否以/结尾
            if (!filePath.endsWith("/")) {
                filePath += "/";
            }
            //写入到文件（注意文件保存路径的后面一定要加上文件的名称）
            fileOut = new FileOutputStream(filePath + filename);
            BufferedOutputStream bos = new BufferedOutputStream(fileOut);

            byte[] buf = new byte[4096];
            int length = bis.read(buf);
            int read_length = length;
            //保存文件
            while (length != -1) {
                setDownload_rate((double) read_length / total);
                bos.write(buf, 0, length);
                length = bis.read(buf);
                read_length += length;
            }
            bos.close();
            bis.close();
            conn.disconnect();
        } catch (Exception e) {
            e.printStackTrace();
            System.out.println("抛出异常！！");
        }
        return file;
    }

    public int getTotal() {
        return total;
    }

    public void setTotal(int total) {
        this.total = total;
    }

    public int getNow() {
        return now;
    }

    public void setNow(int now) {
        this.now = now;
    }

    public double getDownload_rate() {
        return download_rate;
    }

    public void setDownload_rate(double download_rate) {
        this.download_rate = download_rate;
    }

    public String getUrl() {
        return url;
    }

    public void setUrl(String url) {
        this.url = url;
    }

    public String getSavePath() {
        return savePath;
    }

    public void setSavePath(String savePath) {
        this.savePath = savePath;
    }

    public void setDownload_rate(Double download_rate) {
        this.download_rate = download_rate;
    }
}

```

```java
package model;

import cn.edu.scau.biubiusuisui.annotation.FXEntity;
import cn.edu.scau.biubiusuisui.annotation.FXField;

@FXEntity
public class Paper {

    @FXField
    String name;
    @FXField
    String venue;
    @FXField
    String firstAuthor;
    @FXField
    String secondAuthor;
    @FXField
    Boolean is_single  = new Boolean(false);

    @FXField
    int year;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getVenue() {
        return venue;
    }

    public void setVenue(String venue) {
        this.venue = venue;
    }

    public String getFirstAuthor() {
        return firstAuthor;
    }

    public void setFirstAuthor(String firstAuthor) {
        this.firstAuthor = firstAuthor;
    }

    public String getSecondAuthor() {
        return secondAuthor;
    }

    public void setSecondAuthor(String secondAuthor) {
        this.secondAuthor = secondAuthor;
    }

    public Boolean getIs_single() {
        return is_single;
    }

    public void setIs_single(Boolean is_single) {
        this.is_single = is_single;
    }

    public int getYear() {
        return year;
    }

    public void setYear(int year) {
        this.year = year;
    }

    @Override
    public String toString() {
        if(is_single) {
            return String.format("(%s. %s %d)%s.pdf",firstAuthor,venue,year,name);
        }else{
            if(null == secondAuthor || "".equals(secondAuthor)){
                return String.format("(%s et al. %s %d)%s.pdf",firstAuthor,venue,year,name);
            }else{
                return String.format("(%s and %s. %s %d)%s.pdf",firstAuthor,secondAuthor,venue,year,name);
            }
        }
    }
}

```