如何用Java创建ZIP文档？

程序猿DD

发布于 2021-03-09 11:14:26

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发布于 2021-03-09 11:14:26

文章被收录于专栏：程序猿DD

今天来给大家讲解一下ZIP压缩文件，以及如何使用API将数据压缩到可共享的加密或不加密ZIP存档中。喜欢的小伙伴记得点赞关注哟~

现在每个人的日常工作中，ZIP文件已经无处不在，可以说是对于处理大量数据、压缩为方便共享格式的最佳方法之一。

但很多人肯定不知道，ZIP最早是在1989年被PKWARE公司开发的，随后很快被其他一些大公司广泛使用，例如微软、苹果等等。从那个时起，ZIP就逐渐成了压缩文件的代名词。

压缩文件有着很多优点，最显著的优点在于可以将存储空间最大化的利用。当你有很多平时不常用的文件时，比较好的一个做法就是将他们全都打在一个ZIP压缩包文件里。

压缩文件也可以方便用户通过邮件传递一些附件，或者拷贝至移动硬盘等介质。

好了，言归正传。下面就给大家介绍以下，如何Java中创建一个新的ZIP存档文件，并且可以使用加密及不加密等不同的选项。

第一步：新增repository

<repositories>
    <repository>
        <id>jitpack.io</id>
        <url>https://jitpack.io</url>
    </repository>
</repositories>

然后增加对依赖项的引用


<dependencies>
<dependency>
    <groupId>com.github.Cloudmersive</groupId>
    <artifactId>Cloudmersive.APIClient.Java</artifactId>
    <version>v3.90</version>
</dependency>
</dependencies>

这之后，我们在程序顶部将其导入并配置API密钥.(如果想要自己的密钥，可以到https://cloudmersive.com/免费获取一个)

ApiClient defaultClient = Configuration.getDefaultApiClient();
ApiKeyAuth Apikey = (ApiKeyAuth) defaultClient.getAuthentication("Apikey");
Apikey.setApiKey("YOUR API KEY");

做完上述的步骤，我们就可以调用我们的API函数了。下面第一个API函数示例将生成一个简单的、不加密的存档文件，最多呢，允许压缩10个文件。代码如下：

ZipArchiveApi apiInstance = new ZipArchiveApi();
File inputFile1 = new File("/path/to/inputfile"); // File | First input file to perform the operation on.
File inputFile2 = new File("/path/to/inputfile"); // File | Second input file to perform the operation on.
File inputFile3 = new File("/path/to/inputfile"); // File | Third input file to perform the operation on.
File inputFile4 = new File("/path/to/inputfile"); // File | Fourth input file to perform the operation on.
File inputFile5 = new File("/path/to/inputfile"); // File | Fifth input file to perform the operation on.
File inputFile6 = new File("/path/to/inputfile"); // File | Sixth input file to perform the operation on.
File inputFile7 = new File("/path/to/inputfile"); // File | Seventh input file to perform the operation on.
File inputFile8 = new File("/path/to/inputfile"); // File | Eighth input file to perform the operation on.
File inputFile9 = new File("/path/to/inputfile"); // File | Ninth input file to perform the operation on.
File inputFile10 = new File("/path/to/inputfile"); // File | Tenth input file to perform the operation on.
try {
    byte[] result = apiInstance.zipArchiveZipCreate(inputFile1, inputFile2, inputFile3, inputFile4, inputFile5, inputFile6, inputFile7, inputFile8, inputFile9, inputFile10);
    System.out.println(result);
} catch (ApiException e) {
    System.err.println("Exception when calling ZipArchiveApi#zipArchiveZipCreate");
    e.printStackTrace();
}

第二个示例，在第一个示例的基础上，增加压缩文件的加密保护，代码如下：

ZipArchiveApi apiInstance = new ZipArchiveApi();
String password = "password_example"; // String | Password to place on the Zip file; the longer the password, the more secure
File inputFile1 = new File("/path/to/inputfile"); // File | First input file to perform the operation on.
String encryptionAlgorithm = "encryptionAlgorithm_example"; // String | Encryption algorithm to use; possible values are AES-256 (recommended), AES-128, and PK-Zip (not recommended; legacy, weak encryption algorithm). Default is AES-256.
File inputFile2 = new File("/path/to/inputfile"); // File | Second input file to perform the operation on.
File inputFile3 = new File("/path/to/inputfile"); // File | Third input file to perform the operation on.
File inputFile4 = new File("/path/to/inputfile"); // File | Fourth input file to perform the operation on.
File inputFile5 = new File("/path/to/inputfile"); // File | Fifth input file to perform the operation on.
File inputFile6 = new File("/path/to/inputfile"); // File | Sixth input file to perform the operation on.
File inputFile7 = new File("/path/to/inputfile"); // File | Seventh input file to perform the operation on.
File inputFile8 = new File("/path/to/inputfile"); // File | Eighth input file to perform the operation on.
File inputFile9 = new File("/path/to/inputfile"); // File | Ninth input file to perform the operation on.
File inputFile10 = new File("/path/to/inputfile"); // File | Tenth input file to perform the operation on.
try {
    byte[] result = apiInstance.zipArchiveZipCreateEncrypted(password, inputFile1, encryptionAlgorithm, inputFile2, inputFile3, inputFile4, inputFile5, inputFile6, inputFile7, inputFile8, inputFile9, inputFile10);
    System.out.println(result);
} catch (ApiException e) {
    System.err.println("Exception when calling ZipArchiveApi#zipArchiveZipCreateEncrypted");
    e.printStackTrace();
}

不过要注意一下，如果想让加密函数顺利运行，需要一些额外的附加参数。