从 servlet 访问 FileNet Content Engine

Question

我正在尝试从 servlet 访问 IBM FileNet P8 V5 数据存储，需要帮助才能正确配置 WebSphere。

我在带有 IBM WebSphere 的 RedHat 7 服务器上全新安装了 FN P8。

我尝试了 https://www.ibm.com/support/knowledgecenter/en/SSNW2F_5.0.0/com.ibm.p8.ce.dev.ce.doc/ss_ecl_cews.htm

上给出的示例代码

从普通的 Java class 可以正常工作；连接到服务器并检索数据存储名称。

我将代码复制到 servlet，但出现错误： " com.filenet.api.exception.EngineRuntimeException: FNRCS0005E: SECURITY_INVALID_CREDENTIALS: 不允许访问内容引擎，因为内容引擎 API 库或 Web 服务接口 (WSI) 侦听器找不到所需的安全上下文信息. 在安全上下文中找不到预期的凭据"

根据教程，我需要设置运行环境。那就是我被困的地方。我尝试在 JVM 设置中通过 WebSphere 控制台添加 jaas.conf.WebSphere，但显然没有正确地添加。

package server;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.Iterator;
import javax.security.auth.Subject;
import com.filenet.api.collection.ObjectStoreSet;
import com.filenet.api.core.Connection;
import com.filenet.api.core.Domain;
import com.filenet.api.core.Factory;
import com.filenet.api.core.ObjectStore;
import com.filenet.api.util.UserContext;

/**
 * Servlet implementation class FNTest
 * Ref: https://www.ibm.com/support/knowledgecenter/en/SSNW2F_5.0.0/com.ibm.p8.ce.dev.ce.doc/ss_ecl_cews.htm
 */
//@WebServlet(description = "Test for connection to Filenet", urlPatterns = { "/FNTest" })
@WebServlet("/FNTest")
public class FNTest extends HttpServlet {
    private static final long serialVersionUID = 2L;

    /**
     * @see HttpServlet#HttpServlet()
     */
    public FNTest() {
        super();
        // TODO Auto-generated constructor stub
    }

    /**
     * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        PrintWriter out = response.getWriter();
        out.println("<html>");
        out.println("<head><title>Filenet Function Test</title></head>");
        out.println("<body>");
        out.println("<h1>Filenet Function Test</h1>");
        out.println("<p>Request server at " + request.getServletPath() + ".</p><hr>");
        out.println("<p>Connecting to Filenet...</p>");
        // Connect to Filenet
        // Set connection parameters; substitute for the placeholders.
        String uri = "http://filenet.myserver.com:9080/wsi/FNCEWS40MTOM/";
        String username = "P8Admin";
        String password = "P8Password";

        // Make connection.   
        Connection conn = Factory.Connection.getConnection(uri);
        Subject subject = UserContext.createSubject(conn, username, password, null);
        UserContext.get().pushSubject(subject);

        try
        {
           // Get default domain.
           Domain domain = Factory.Domain.fetchInstance(conn, null, null);
           System.out.println("Domain: " + domain.get_Name());

           // Get object stores for domain.
           ObjectStoreSet osSet = domain.get_ObjectStores();
           ObjectStore store;
           Iterator osIter = osSet.iterator();

           while (osIter.hasNext()) 
           {
              store = (ObjectStore) osIter.next();
              System.out.println("Object store: " + store.get_Name());
           }
           System.out.println("Connection to Content Engine successful");
        }
        finally
        {
           UserContext.get().popSubject();
        }

        out.println("<p>Completed</p>");
        out.println("</body></html>");
    }

    /**
     * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // TODO Auto-generated method stub
        doGet(request, response);
    }

}

应用程序与 servlet 安装在同一台服务器上。

Answer 1

我看到您的 jaas 节为空，这意味着它将采用 FileNetP8 作为默认节。尝试使用 FileNetP8WSI 而不是 null，因为您正在使用 WSI 端点进行连接。

Subject subject = UserContext.createSubject(conn, username, password, "FileNetP8WSI");

如果您提供 null 它将使用 "FileNetP8" 这是用于 IIOP 连接的 jaas 节

从 servlet 访问 FileNet Content Engine

Access FileNet Content Engine from servlet

authentication

servlets

filenet-p8

filenet-content-engine

filenet-cpe