Sling Servlet

Last update: Wed Mar 26 2025 00:00:00 GMT+0000 (Coordinated Universal Time)

适用对象：
Experience Manager 6.4
Experience Manager 6.5

主题：
自适应表单

创建对象：

初学者
开发人员

Servlet是用来扩展服务器功能的类，这些服务器承载通过请求 — 响应编程模型访问的应用程序。对于此类应用程序，Servlet技术定义特定于HTTP的servlet类。
所有Servlet都必须实施Servlet接口，该接口定义生命周期方法。

AEM中的Servlet可以注册为OSGi服务：您可以为只读实现扩展SlingSafeMethodsServlet，或者为实施所有RESTful操作扩展SlingAllMethodsServlet。

Servlet代码

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 java.io.File;
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());
              }
      }
}