IO操作之使用zip包压缩和解压缩文件 (一)

Java API中的import java.util.zip.*;包下包含了Java对于压缩文件的所有相关操作。

我们可以使用该包中的方法，结合IO中的相关知识，进行文件的压缩和解压缩相关操作。

ZipFile
java中的每一个压缩文件都是可以使用ZipFile来进行表示的。

[java]
File file = new File("F:/zippath.zip");
ZipFile zipFile = new ZipFile(file);
System.out.println("压缩文件的名称为：" + zipFile.getName());

File file = new File("F:/zippath.zip");
ZipFile zipFile = new ZipFile(file);
System.out.println("压缩文件的名称为：" + zipFile.getName());

压缩单个文件
[java]
/** 压缩单个文件*/
public static void ZipFile(String filepath ,String zippath) {
try {
File file = new File(filepath);
File zipFile = new File(zippath);
InputStream input = new FileInputStream(file);
ZipOutputStream zipOut = new ZipOutputStream(new FileOutputStream(zipFile));
zipOut.putNextEntry(new ZipEntry(file.getName()));
int temp = 0;
while((temp = input.read()) != -1){
zipOut.write(temp);
}
input.close();
zipOut.close();
} catch (Exception e) {
e.printStackTrace();
}

/** 压缩单个文件*/
public static void ZipFile(String filepath ,String zippath) {
try {
File file = new File(filepath);
File zipFile = new File(zippath);
InputStream input = new FileInputStream(file);
ZipOutputStream zipOut = new ZipOutputStream(new FileOutputStream(zipFile));
zipOut.putNextEntry(new ZipEntry(file.getName()));
int temp = 0;
while((temp = input.read()) != -1){
zipOut.write(temp);
}
input.close();
zipOut.close();
} catch (Exception e) {
e.printStackTrace();
}
}应用：
[java]
ZipFile("d:/hello.txt", "d:/hello.zip");

ZipFile("d:/hello.txt", "d:/hello.zip");

压缩多个文件（文件夹）
[java]
/** 一次性压缩多个文件，文件存放至一个文件夹中*/
public static void ZipMultiFile(String filepath ,String zippath) {
try {
File file = new File(filepath);// 要被压缩的文件夹
File zipFile = new File(zippath);
InputStream input = null;
ZipOutputStream zipOut = new ZipOutputStream(new FileOutputStream(zipFile));
if(file.isDirectory()){
File[] files = file.listFiles();
for(int i = 0; i < files.length; ++i){
input = new FileInputStream(files[i]);
zipOut.putNextEntry(new ZipEntry(file.getName() + File.separator + files[i].getName()));
int temp = 0;
while((temp = input.read()) != -1){
zipOut.write(temp);
}
input.close();
}
}
zipOut.close();
} catch (Exception e) {
e.printStackTrace();
}

/** 一次性压缩多个文件，文件存放至一个文件夹中*/
public static void ZipMultiFile(String filepath ,String zippath) {
try {
File file = new File(filepath);// 要被压缩的文件夹
File zipFile = new File(zippath);
InputStream input = null;
ZipOutputStream zipOut = new ZipOutputStream(new FileOutputStream(zipFile));
if(file.isDirectory()){
File[] files = file.listFiles();
for(int i = 0; i < files.length; ++i){
input = new FileInputStream(files[i]);
zipOut.putNextEntry(new ZipEntry(file.getName() + File.separator + files[i].getName()));
int temp = 0;
while((temp = input.read()) != -1