Servlet是一種類,用於擴展通過請求響應寫程式模型訪問的托管應用程式的伺服器的能力。 對於這些應用程式,Servlet技術定義了HTTP特定的Servlet類。
所有servlet都必須實作定義生命週期方法的Servlet介面。
AEM中的Servlet可註冊為OSGi服務:您可以擴充SlingSafeMethodsServlet以進行唯讀實作,或擴充SlingAllMethodsServlet,以實作所有RESTful操作。
package com.mysite.core.servlets;
import javax.servlet.Servlet;
import org.apache.sling.api.SlingHttpServletRequest;
import org.apache.sling.api.SlingHttpServletResponse;
import org.apache.sling.api.servlets.SlingAllMethodsServlet;
import org.osgi.service.component.annotations.Component;
import org.osgi.service.component.annotations.Reference;
import com.adobe.aemfd.docmanager.Document;
import com.adobe.fd.forms.api.FormsService;
@Component(service={Servlet.class}, property={"sling.servlet.methods=post", "sling.servlet.paths=/bin/mergedataWithAcroform"})
public class MyFirstAEMFormsServlet extends SlingAllMethodsServlet
{
private static final long serialVersionUID = 1L;
@Reference
FormsService formsService;
protected void doPost(SlingHttpServletRequest request, SlingHttpServletResponse response)
{
String file_path = request.getParameter("save_location");
java.io.InputStream pdf_document_is = null;
java.io.InputStream xml_is = null;
javax.servlet.http.Part pdf_document_part = null;
javax.servlet.http.Part xml_data_part = null;
try
{
pdf_document_part = request.getPart("pdf_file");
xml_data_part = request.getPart("xml_data_file");
pdf_document_is = pdf_document_part.getInputStream();
xml_is = xml_data_part.getInputStream();
Document data_merged_document = formsService.importData(new Document(pdf_document_is), new Document(xml_is));
data_merged_document.copyToFile(new File(file_path));
}
catch(Exception e)
{
response.sendError(400,e.getMessage());
}
}
}
若要建置專案,請依照下列步驟操作:
c:\aemformsbundles\mysite\core
mvn clean install -PautoInstallBundle
此套件也可在下列位置使用 C:\AEMFormsBundles\mysite\core\target
. 套件組合也可透過 Felix Web Console。
將瀏覽器指向 servlet解析器URL. 這會告訴您為指定路徑叫用的Servlet,如下方螢幕擷取畫面所示