下面的示例代码将压缩和密码保护您的文件。此 REST 服务接受原始文件的字节。它压缩字节数组并用密码保护它。然后它发送密码保护的压缩文件字节作为响应。该代码是向 REST 服务发送和接收二进制字节以及使用密码保护压缩文件的示例。字节是从流中压缩的，因此服务器上不会存储任何文件。
- 在 java 中使用 JAX-RS API 使用 Jersey API
- 客户端正在使用 Jersey-client API。
- 使用 zip4j 1.3.2 开源库和 apache commons io。
@PUT
@Path("/bindata/protect/qparam")
@Consumes(MediaType.APPLICATION_OCTET_STREAM)
@Produces(MediaType.APPLICATION_OCTET_STREAM)
public Response zipFileUsingPassProtect(byte[] fileBytes, @QueryParam(value = "pass") String pass,
@QueryParam(value = "inputFileName") String inputFileName) {
System.out.println("====2001==== Entering zipFileUsingPassProtect");
System.out.println("fileBytes size = " + fileBytes.length);
System.out.println("password = " + pass);
System.out.println("inputFileName = " + inputFileName);
byte b[] = null;
try {
b = zipFileProtected(fileBytes, inputFileName, pass);
} catch (IOException e) {
e.printStackTrace();
return Response.status(Status.INTERNAL_SERVER_ERROR).build();
}
System.out.println(" ");
System.out.println("++++++++++++++++++++++++++++++++");
System.out.println(" ");
return Response.ok(b, MediaType.APPLICATION_OCTET_STREAM)
.header("content-disposition", "attachment; filename = " + inputFileName + ".zip").build();
}
private byte[] zipFileProtected(byte[] fileBytes, String fileName, String pass) throws IOException {
ByteArrayInputStream inputByteStream = null;
ByteArrayOutputStream outputByteStream = null;
net.lingala.zip4j.io.ZipOutputStream outputZipStream = null;
try {
//write the zip bytes to a byte array
outputByteStream = new ByteArrayOutputStream();
outputZipStream = new net.lingala.zip4j.io.ZipOutputStream(outputByteStream);
//input byte stream to read the input bytes
inputByteStream = new ByteArrayInputStream(fileBytes);
//init the zip parameters
ZipParameters zipParams = new ZipParameters();
zipParams.setCompressionMethod(Zip4jConstants.COMP_DEFLATE);
zipParams.setCompressionLevel(Zip4jConstants.DEFLATE_LEVEL_NORMAL);
zipParams.setEncryptFiles(true);
zipParams.setEncryptionMethod(Zip4jConstants.ENC_METHOD_STANDARD);
zipParams.setPassword(pass);
zipParams.setSourceExternalStream(true);
zipParams.setFileNameInZip(fileName);
//create zip entry
outputZipStream.putNextEntry(new File(fileName), zipParams);
IOUtils.copy(inputByteStream, outputZipStream);
outputZipStream.closeEntry();
//finish up
outputZipStream.finish();
IOUtils.closeQuietly(inputByteStream);
IOUtils.closeQuietly(outputByteStream);
IOUtils.closeQuietly(outputZipStream);
return outputByteStream.toByteArray();
} catch (ZipException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
IOUtils.closeQuietly(inputByteStream);
IOUtils.closeQuietly(outputByteStream);
IOUtils.closeQuietly(outputZipStream);
}
return null;
}
下面的单元测试：
@Test
public void testPassProtectZip_with_params() {
byte[] inputBytes = null;
try {
inputBytes = FileUtils.readFileToByteArray(new File(inputFilePath));
} catch (IOException e) {
e.printStackTrace();
}
System.out.println("bytes read into array. size = " + inputBytes.length);
Client client = ClientBuilder.newClient();
WebTarget target = client.target("http://localhost:8080").path("filezip/services/zip/bindata/protect/qparam");
target = target.queryParam("pass", "mypass123");
target = target.queryParam("inputFileName", "any_name_here.pdf");
Invocation.Builder builder = target.request(MediaType.APPLICATION_OCTET_STREAM);
Response resp = builder.put(Entity.entity(inputBytes, MediaType.APPLICATION_OCTET_STREAM));
System.out.println("response = " + resp.getStatus());
Assert.assertEquals(Status.OK.getStatusCode(), resp.getStatus());
byte[] zipBytes = resp.readEntity(byte[].class);
try {
FileUtils.writeByteArrayToFile(new File(responseFilePathPasswordZipParam), zipBytes);
} catch (IOException e) {
e.printStackTrace();
}
}
随意使用和修改。如果您发现任何错误，请告诉我。希望这可以帮助。
编辑 1 - 使用 QueryParam，但您可以使用 HeaderParam 代替 PUT 以隐藏 passwd 以使视线不可见。相应地修改测试方法。
编辑 2 - REST 路径是 filezip/services/zip/bindata/protect/qparam
filezip 是战争的名称。services 是 web.xml 中的 url 映射。zip 是类级别的路径注释。bindata/protect/qparam 是方法级别的路径注释。