java - 如何连接从路径到目录的字符串和目录中的多个 zip 文件名？

Question

我正在编写一些脚本来原子化我几乎每天都需要执行的手动功能。

我的第一个问题是从路径和 zip 文件名构建一个字符串。第二个问题是循环遍历 zip 文件名(路径+zip 文件名)。

这是包含多个 zip 文件的目录路径:/Users/John.Smith/Desktop/Test_script/

以下是众多 zip 文件之一的名称:CRM_CI_20161016_000001_50661561.zip

最后，我需要循环遍历每个 zip 文件名称中的目录和子字符串(数字 50661561)以便对其进行操作。

有人可以给我建议吗？

这是我在下面给出的代码，用于仅操作一个 zip 文件:

import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;

import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.xml.sax.SAXException;



public class UnzipUtilityTest {
    public static void main(String[] args) {



  // unzip file 

        String zipFilePath = "/Users/John.Smith/Desktop/Test_script/CRM_CI_20161016_000001_50661561.zip";
        String destDirectory = "/Users/John.Smith/Desktop/Test_script/test";
        UnzipUtility unzipper = new UnzipUtility();


        try {
            unzipper.unzip(zipFilePath, destDirectory);
        } catch (Exception ex) {

            System.out.println("ERROR:Unzip did not work");
        }


 // read provider id       
        String old_prov_id = zipFilePath.substring(66, 74);
        System.out.println("Old provider ID :"+old_prov_id );

 // add +1 to provider ID
        int new_provider_ID = Integer.parseInt(old_prov_id);
        new_provider_ID++;
        System.out.println("New provider ID :"+new_provider_ID );


 // convert provider-id INT into String   

      String str_provider_id = Integer.toString(new_provider_ID);  
      System.out.println("New String provider ID :"+str_provider_id );  

 // concatenate two String into one
        StringBuilder bufferPDF = new StringBuilder()
                .append(new_provider_ID).append(".pdf");
            System.out.println(bufferPDF.toString()); 

            StringBuilder bufferXML = new StringBuilder()
                    .append(new_provider_ID).append(".xml");
                System.out.println(bufferXML.toString()); 

  // convert names of XML and PDF      

       Path sourcePDF = Paths.get("/Users/John.Smith/Desktop/Test_script/test/50661561.pdf");
        try {
            Files.move(sourcePDF, sourcePDF.resolveSibling(bufferPDF.toString()));
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        Path sourceXML = Paths.get("/Users/John.Smith/Desktop/Test_script/test/50661561.xml");
        try {
            Files.move(sourceXML, sourceXML.resolveSibling(bufferXML.toString()));
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

    // change provider-id and filename in xml file    

           try {

                String filepath = "/Users/John.Smith/Desktop/Test_script/test/50661562.xml";

                DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
                DocumentBuilder docBuilder = docFactory.newDocumentBuilder();
                Document doc = docBuilder.parse(filepath);

                // Get the root element provider-id 
                Node provider = doc.getElementsByTagName("provider-id").item(0);
                provider.setTextContent(str_provider_id);

                // Get the root element filename
                Node filename = doc.getElementsByTagName("filename").item(0);
                filename.setTextContent(str_provider_id);


                // write the content into xml file
                TransformerFactory transformerFactory = TransformerFactory.newInstance();
                Transformer transformer = transformerFactory.newTransformer();
                DOMSource source = new DOMSource(doc);
                StreamResult result = new StreamResult(new File(filepath));
                transformer.transform(source, result);

                System.out.println("Done");

               } catch (ParserConfigurationException pce) {
                pce.printStackTrace();
               } catch (TransformerException tfe) {
                tfe.printStackTrace();
               } catch (IOException ioe) {
                ioe.printStackTrace();
               } catch (SAXException sae) {
                sae.printStackTrace();
               }            

          }               
    }

Answer 1

我的处理方式有点不同:

1. 列出目录中的所有文件
2. 循环浏览文件列表中的项目
3. 提取旧 ID 并递增它
4. 处理新 ID

示例:

//you could probably make this nicer

String fileNamePattern = "CRM_CI_\\d{8}_\\d{6}_\\d{8}\\.zip";
String oldProvIdPattern = "CRM_CI_\\d{8}_\\d{6}_(\\d{8})\\.zip";

String pathToZips = "/Users/John.Smith/Desktop/Test_script/"
String destinationPath = "/Users/John.Smith/Desktop/Test_script/test";

File dir = new File(".");
FileFilter fileFilter = new RegexFileFilter(fileNamePattern);
File[] files = pathToZips.listFiles(fileFilter);
for (File file : files) {
    //Handle each zip here
    String zipPath = file.getAbsolutePath();  


    try {
        unzipper.unzip(zipPath, destinationPath);
    } catch (Exception ex) {
        System.out.println("ERROR:Unzip did not work");
    }

    Pattern pattern = Pattern.compile(oldProvIdPattern);
    Matcher matcher = pattern.matcher(file.getName());
    if (matcher.find()){
        String old_prov_id = matcher.group(1);
        System.out.println("Old provider ID :"+old_prov_id );

        // add +1 to provider ID
        int new_provider_ID = Integer.parseInt(old_prov_id);
        new_provider_ID++;
        System.out.println("New provider ID :"+new_provider_ID );

        // convert provider-id INT into String   

        String str_provider_id = Integer.toString(new_provider_ID);  
        System.out.println("New String provider ID :"+str_provider_id );  

        // concatenate two String into one
        StringBuilder bufferPDF = new StringBuilder()
                .append(new_provider_ID).append(".pdf");
            System.out.println(bufferPDF.toString()); 

            StringBuilder bufferXML = new StringBuilder()
                    .append(new_provider_ID).append(".xml");
                System.out.println(bufferXML.toString()); 

        // convert names of XML and PDF      

       Path sourcePDF = Paths.get("/Users/John.Smith/Desktop/Test_script/test/" + old_prov_id + ".pdf");
        try {
            Files.move(sourcePDF, sourcePDF.resolveSibling(bufferPDF.toString()));
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        Path sourceXML = Paths.get("/Users/John.Smith/Desktop/Test_script/test/" + old_prov_id + ".xml");
        try {
            Files.move(sourceXML, sourceXML.resolveSibling(bufferXML.toString()));
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        // change provider-id and filename in xml file    

        try {

        String filepath = "/Users/John.Smith/Desktop/Test_script/test/" + old_prov_id + ".xml";

        DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
        DocumentBuilder docBuilder = docFactory.newDocumentBuilder();
        Document doc = docBuilder.parse(filepath);

        // Get the root element provider-id 
        Node provider = doc.getElementsByTagName("provider-id").item(0);
        provider.setTextContent(str_provider_id);

        // Get the root element filename
        Node filename = doc.getElementsByTagName("filename").item(0);
        filename.setTextContent(str_provider_id);


        // write the content into xml file
        TransformerFactory transformerFactory = TransformerFactory.newInstance();
        Transformer transformer = transformerFactory.newTransformer();
        DOMSource source = new DOMSource(doc);
        StreamResult result = new StreamResult(new File(filepath));
        transformer.transform(source, result);

        System.out.println("Done");

       } catch (ParserConfigurationException pce) {
        pce.printStackTrace();
       } catch (TransformerException tfe) {
        tfe.printStackTrace();
       } catch (IOException ioe) {
        ioe.printStackTrace();
       } catch (SAXException sae) {
        sae.printStackTrace();
       }            

      }  
}