Call the 7z tool to update the files in the compressed package

When we want to update the files (including folders) in the compressed package (zip, ear should also include many), we can do it by calling the 7z tool.

Note: You cannot update the files in a folder in the compressed package . You need to use other methods, such as: first extract this folder from the compressed package, then modify the files in the extracted folder, and finally use this update method to replace the old one inside

 

Import part:

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

 

Code:

    public static void updateZipFileByCall7z() {         String filePathStr = "E:\\Test_JAVAProgram\\test7z\\testUpdateZipFile"; // updated folder         String updateFilePath = "E:\\Test_JAVAProgram\\test7z\\testFile.txt"; / / Updated file         String zipToolPath = "D:\\7-Zip\\7z.exe"; // 7z tool path         String sourceFilePath = "E:\\Test_JAVAProgram\\test7z\\testUpdateZipFile.zip"; // updated Zip file // String cmd = zipToolPath + "" + "u" + "" + sourceFilePath + "" + filePathStr;         String cmd = zipToolPath + "" + "u" + "" + sourceFilePath + "" + updateFilePath;         System .out.println(cmd);         InputStream is = null;         InputStreamReader isr = null;









        BufferedReader br = null;
        try {
            Process process = Runtime.getRuntime().exec(cmd);
            is = process.getInputStream();
            isr = new InputStreamReader(is);
            br = new BufferedReader(isr);
            String line = null;
            while((line = br.readLine()) != null) {
                System.out.println(line);
                System.out.println(line.toLowerCase().indexOf("Everything is Ok".toLowerCase()));
                if(line.toLowerCase().indexOf("Everything is Ok".toLowerCase()) != -1) {
                    System.out.println("成功");
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }finally {
            if(br != null) {
                try {
                    br.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            if(isr != null) {
                try {
                    isr.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            if(is != null) {
                try {
                    is.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }