进行POST调用
下一步是使用必要的参数向端点进行HTTPPOST调用。 模板和数据文件作为资源文件提供。 生成的pdf的属性通过请求中的选项参数指定。embedFonts属性用于在生成的pdf中嵌入自定义字体。请按照此文档将自定义字体部署到Forms云实例。属性在options.json资源文件中指定。 由于端点具有基于令牌的身份验证，因此我们在请求标头中传递访问令牌。
以下代码用于通过将数据与模板合并来生成pdf
public class DocumentGeneration
{
public String SAVE_LOCATION = "c:\\aspire1";
public void mergeDataWithXdpTemplate(String postURL)
{
HttpPost httpPost = new HttpPost(postURL);
CredentialUtilites cu = new CredentialUtilites();
String accessToken = cu.getAccessToken();
httpPost.addHeader("Authorization", "Bearer " + accessToken);
ClassLoader classLoader = DocumentGeneration.class.getClassLoader();
URL templateFile = classLoader.getResource("templates/custom_fonts.xdp");
File xdpTemplate = new File(templateFile.getPath());
URL url = classLoader.getResource("datafiles");
System.out.println(url.getPath());
File files[] = new File(url.getPath()).listFiles();
for (int i = 0; i < files.length; i++) {
MultipartEntityBuilder builder = MultipartEntityBuilder.create();
ContentType strContent = ContentType.create("text/plain", Charset.forName("UTF-8"));
builder.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);
builder.addBinaryBody("data", files[i]);
builder.addBinaryBody("template", xdpTemplate);
builder.addBinaryBody("options",GetOptions.getPDFOptions().getBytes(),ContentType.APPLICATION_JSON,"options"
try {
HttpEntity entity = builder.build();
httpPost.setEntity(entity);
CloseableHttpClient httpclient = HttpClients.createDefault();
CloseableHttpResponse response = httpclient.execute(httpPost);
InputStream generatedPDF = response.getEntity().getContent();
byte[] bytes = IOUtils.toByteArray(generatedPDF);
File saveLocation = new File(SAVE_LOCATION);
if (!saveLocation.exists()) {
saveLocation.mkdirs();
}
File outputFile = new File(SAVE_LOCATION+File.separator+files[i].getName().replace("xml", "pdf"));
try (FileOutputStream outputStream = new FileOutputStream(outputFile)) {
outputStream.write(bytes);
}
} catch (Exception e) {
System.out.println("The error is " + e.getMessage());
}
}
System.out.println("Done generating " + files.length + " files");
}
}
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