package com.product.file.util;
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import com.lowagie.text.Document;
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import com.lowagie.text.Font;
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import com.lowagie.text.HeaderFooter;
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import com.lowagie.text.Paragraph;
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import com.lowagie.text.Phrase;
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import com.lowagie.text.Rectangle;
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import com.lowagie.text.pdf.BaseFont;
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import com.lowagie.text.pdf.PdfWriter;
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import com.product.common.lang.DateUtils;
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import java.io.*;
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import java.nio.charset.StandardCharsets;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.regex.Pattern;
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/**
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* @Author cheng
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* @Description
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* @Date 2021/10/28 11:47
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* @Version 1.0
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*/
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public class JavaFileAllTopdfUtil {
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/**
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* window 自带的字体文件
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*/
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private static final String FONT = "C:\\Windows\\Fonts\\msyh.ttf";
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/**
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* 转换文件的目录 获取该目录下所有的 .java 类型的文件
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*/
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private static final String convertingFileDirectories = "D:\\product\\产品运营\\产品著作权\\java";
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// 给定目录的绝对路径，获取该目录下的所有文件（子目录的文件也可递归得到）
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private static List<File> getFile(String path) {
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// File对象 可以是文件或者目录
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File file = new File(path == null ? convertingFileDirectories : path);
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File[] array = file.listFiles();
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List<File> result = new ArrayList<>();
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for (int i = 0; i < array.length; i++) {
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if (array[i].isFile()) {
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File file1 = array[i];
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String name = file1.getName();
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String file_type = name.substring(name.lastIndexOf(".") + 1);
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if (file_type.equalsIgnoreCase("java")) {
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result.add(array[i]);
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}
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} else if (array[i].isDirectory()) {
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result.addAll(getFile(array[i].getPath()));
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}
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}
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return result;
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}
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public static StringBuilder readFileToString() {
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String pattern = "^[0-9]*[\\s]*$";
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// 定义返回结果
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System.out.println("正在查找java文件....");
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List<File> fileList = getFile(null);
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StringBuilder sb = new StringBuilder(256);
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System.out.println("正在读取文件......");
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for (int i = 0; i < fileList.size(); i++) {
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if(fileList.get(i).getName().indexOf("前")>=0
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|| fileList.get(i).getName().indexOf("后")>=0
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) {
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try (FileInputStream in = new FileInputStream(fileList.get(i));) {
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int len;
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byte[] bytes = new byte[1024];
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while ((len = in.read(bytes)) != -1) {
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sb.append(new String(bytes, 0, len));
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}
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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}
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System.out.println("文件读取完成，共读取到" + fileList.size() + "个文件");
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// 返回拼接好的JSON String
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try (OutputStream os = new FileOutputStream(new File(convertingFileDirectories + "\\javaCode.pdf"));) {
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Document document = new Document();
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InputStream streamReader = new ByteArrayInputStream(sb.toString().getBytes(StandardCharsets.UTF_8));
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Reader reader = new InputStreamReader(streamReader);
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BufferedReader bufferedReader = new BufferedReader(reader);
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PdfWriter.getInstance(document, os);
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//方法一：使用Windows系统字体(TrueType)
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BaseFont baseFont = BaseFont.createFont(FONT, BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
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Font font = new Font(baseFont);
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font.setSize(8);
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HeaderFooter header=new HeaderFooter(new Phrase("企业运营管理平台",font),false);
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header.setBorder(Rectangle.BOTTOM);
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header.setAlignment(1);
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HeaderFooter footer=new HeaderFooter(new Phrase("-",font),new Phrase("-",font));
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footer.setAlignment(1);
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footer.setBorder(Rectangle.TOP);
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document.setFooter(footer);
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document.setHeader(header);
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document.open();
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String str = "";
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System.out.println("正在写入pdf,请稍等....");
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while ((str = bufferedReader.readLine()) != null) {
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boolean isMatch = Pattern.matches(pattern, str);
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if(!isMatch) {
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String x="";
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for(int i=0;i<str.length();i++) {
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if((int)str.charAt(i)==9) {
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x+=" ";
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}else if((int)str.charAt(i)==32) {
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x+=" ";
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}else {
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break;
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}
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}
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document.add(new Paragraph(x+str, font));
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}
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}
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document.close();
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bufferedReader.close();
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System.out.println("写入完成,文件保存路径:" + convertingFileDirectories + "\\javaCode.pdf");
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} catch (Exception e) {
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System.out.println("写入出错");
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new File(convertingFileDirectories + "\\javaCode.pdf").delete();
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e.printStackTrace();
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}
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return sb;
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}
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public static void main(String[] args) {
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readFileToString();
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// String str=
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//// "import java.util.TreeMap;\r\n"
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// "*\r\n"
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// //+ "import org.springframework.beans.factory.annotation.Autowired;"
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// ;
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// String pattern = "^[0-9]*[\\s]*$";
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// boolean isMatch = Pattern.matches(pattern, str);
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//
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// System.out.println(isMatch);
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}
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}
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