实现Java字符串使用zip压缩和解压
流程图
pie
title Java字符串使用zip压缩和解压步骤
"创建Zip文件" : 25
"写入文件内容" : 25
"关闭Zip文件" : 25
"解压Zip文件" : 25
步骤
步骤 | 操作 | 代码示例 |
---|---|---|
创建Zip文件 | 创建一个Zip输出流 | ZipOutputStream zipOut = new ZipOutputStream(new FileOutputStream("example.zip")); |
写入文件内容 | 将文件内容写入Zip文件 | zipOut.putNextEntry(new ZipEntry("example.txt")); <br/>zipOut.write("This is an example.".getBytes()); |
关闭Zip文件 | 关闭Zip输出流 | zipOut.close(); |
解压Zip文件 | 创建一个Zip输入流 | ZipInputStream zipIn = new ZipInputStream(new FileInputStream("example.zip")); |
读取Zip文件内容 | 读取Zip文件中的内容 | ZipEntry entry = zipIn.getNextEntry(); <br/>byte[] buffer = new byte[1024]; <br/>int bytesRead; <br/>while ((bytesRead = zipIn.read(buffer)) != -1) { <br/>//处理读取到的数据 <br/>} |
关闭Zip文件 | 关闭Zip输入流 | zipIn.close(); |
代码示例
压缩字符串为Zip文件
import java.io.FileOutputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
public class ZipExample {
public static void main(String[] args) {
try {
ZipOutputStream zipOut = new ZipOutputStream(new FileOutputStream("example.zip"));
zipOut.putNextEntry(new ZipEntry("example.txt"));
zipOut.write("This is an example.".getBytes());
zipOut.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
解压Zip文件中的字符串
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;
public class UnzipExample {
public static void main(String[] args) {
try {
ZipInputStream zipIn = new ZipInputStream(new FileInputStream("example.zip"));
ZipEntry entry = zipIn.getNextEntry();
byte[] buffer = new byte[1024];
int bytesRead;
while ((bytesRead = zipIn.read(buffer)) != -1) {
// 处理读取到的数据
}
zipIn.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
通过上述步骤和代码示例,你可以实现Java字符串使用zip压缩和解压的功能了。祝你学习顺利!