创建OSGi服务

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

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Experience Manager 6.4
Experience Manager 6.5

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有经验的
开发人员

编写了以下代码以存储需要签名的表单。每个要签名的表单都与唯一的guid和客户id相关联。因此，一个或多个表单可以与同一客户ID关联，但将为表单分配唯一的GUID。

接口

以下是使用的接口声明

package com.aem.forms.signmultipleforms;
import com.adobe.granite.workflow.WorkflowSession;
import com.adobe.granite.workflow.exec.WorkItem;
public interface SignMultipleForms
{
    public void insertData(String []formNames,String formData,String serverURL,WorkItem workItem, WorkflowSession workflowSession);
    public String getNextFormToSign(int customerID);
    public void updateSignatureStatus(String formData,String guid);
    public String getFormData(String guid);
}

插入数据

插入数据方法在数据源标识的数据库中插入一行。数据库中的每一行都对应于一个表单，并由GUID和客户ID唯一标识。表单数据和表单URL也存储在此行中。状态列用于指示表单是否已填写和签名。值为0表示表单尚未签名。

@Override
public void insertData(String[] formNames, String formData, String serverURL, WorkItem workItem, WorkflowSession workflowSession) {
  String insertTableSQL = "INSERT INTO aemformstutorial.signingforms(formName,formData,guid,status,customerID) VALUES(?,?,?,?,?)";
  Random r = new Random();
  Connection con = getConnection();
  PreparedStatement pstmt = null;
  int customerIDGnerated = r.nextInt((1000 - 1) + 1) + 1;
  log.debug("The number of forms to insert are  " + formNames.length);
  try {
    for (int i = 0; i < formNames.length; i++) {
      log.debug("Inserting form name " + formNames[i]);
      UUID uuid = UUID.randomUUID();
      String randomUUIDString = uuid.toString();
      String formUrl = serverURL + "/content/dam/formsanddocuments/formsandsigndemo/" + formNames[i] + "/jcr:content?wcmmode=disabled&guid=" + randomUUIDString + "&customerID=" + customerIDGnerated;
      pstmt = con.prepareStatement(insertTableSQL);
      pstmt.setString(1, formUrl);
      pstmt.setString(2, formData.replace("<guid>3938</guid>", "<guid>" + uuid + "</guid>"));
      pstmt.setString(3, uuid.toString());
      pstmt.setInt(4, 0);
      pstmt.setInt(5, customerIDGnerated);
      log.debug("customerIDGnerated the insert statment  " + pstmt.execute());
      if (i == 0) {
        WorkflowData wfData = workItem.getWorkflowData();
        wfData.getMetaDataMap().put("formURL", formUrl);
        workflowSession.updateWorkflowData(workItem.getWorkflow(), wfData);
        log.debug("$$$$ Done updating the map");

}

}
    con.commit();
  }
  catch(Exception e) {
    log.debug(e.getMessage());
  }
  finally {
    if (pstmt != null) {
      try {
        pstmt.close();
      } catch(SQLException e) {

log.debug(e.getMessage());
      }
    }
    if (con != null) {
      try {
        con.close();
      } catch(SQLException e) {
        log.debug(e.getMessage());
      }
    }
  }

}

获取表单数据

以下代码用于获取与给定GUID关联的自适应表单数据。然后，使用表单数据预填充自适应表单。

@Override
public String getFormData(String guid) {
  log.debug("### Getting form data asscoiated with guid " + guid);
  Connection con = getConnection();
  try {
    Statement st = con.createStatement();
    String query = "SELECT formData FROM aemformstutorial.signingforms where guid = '" + guid + "'" + "";
    log.debug(" The query being consrtucted " + query);
    ResultSet rs = st.executeQuery(query);
    while (rs.next()) {
      return rs.getString("formData");
    }
  } catch(SQLException e) {
    // TODO Auto-generated catch block
    log.debug(e.getMessage());
  }

  return null;

}

更新签名状态

成功完成签字仪式会触发与表单关联的AEM工作流。工作流中的第一步是流程步骤，它会更新数据库中由guid和客户id标识的行的状态。我们还将formdata中带符号的元素的值设置为Y，以指示表单已填写并已签名。自适应表单中会填充此数据，并且会使用xml数据中带符号的数据元素的值来显示相应的消息。从自定义流程步骤调用updateSignatureStatus代码。

public void updateSignatureStatus(String formData, String guid) {
  String updateStatment = "update aemformstutorial.signingforms SET formData = ?, status = ? where guid = ?";
  PreparedStatement updatePS = null;
  Connection con = getConnection();
  try {
    updatePS = con.prepareStatement(updateStatment);
    updatePS.setString(1, formData.replace("<signed>N</signed>", "<signed>Y</signed>"));
    updatePS.setInt(2, 1);
    updatePS.setString(3, guid);
    log.debug("Updated the signature status " + String.valueOf(updatePS.execute()));
  } catch(SQLException e) {
    log.debug(e.getMessage());
  }
  finally {
    try {
      con.commit();
      updatePS.close();
      con.close();
    } catch(SQLException e) {

      log.debug(e.getMessage());
    }

  }

}

获取下一个要签名的表单

下面的代码用于获取下一个表单，用于对状态为0的给定customerID进行签名。如果sql查询未返回任何行，我们将返回字符串 "AllDone"，这表示对于给定的客户ID没有更多要签名的表单。

@Override
public String getNextFormToSign(int customerID) {
  System.out.println("### inside my next form to sign " + customerID);
  String selectStatement = "SELECT formName FROM aemformstutorial.signingforms where status = 0 and customerID=" + customerID;
  Connection con = getConnection();
  try
   {
    Statement st = con.createStatement();
    ResultSet rs = st.executeQuery(selectStatement);
    while (rs.next()) {
      log.debug("Got result set object");
      return rs.getString("formName");
    }
    if (!rs.next()) {
      return "AllDone";
    }
  } catch(SQLException e) {
    log.debug(e.getMessage());
  }
  finally {
    try {
      con.close();
    } catch(SQLException e) {
      // TODO Auto-generated catch block
      log.debug(e.getMessage());
    }
  }

  return null;

}

资源

包含上述服务的OSGi捆绑包可以从此处下载

后续步骤

创建主工作流以处理初始表单提交

recommendation-more-help

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