获取帆当前登录用户

最近做一个项目，需要实现以帆软报表为中心，实现别的系统单点登录，即默认为：帆软登录后，其他系统直接从帆软获取当前登录用户。具体思路如下

1、在帆软开发一个servlet，用于获取当前帆软登录用户。具体代码如下

2、别的系统直接调用 servlert对应的地址，获取当前系统登录的用户。然后根据当前去登录基本系统。

package fr.sso;

import java.io.IOException;
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 com.fr.decision.webservice.v10.login.LoginService;


/**
 * Servlet implementation class GetCurUser
 */
@WebServlet("/GetCurUser")
public class GetCurUser extends HttpServlet {
    private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public GetCurUser() {
        super();
        // TODO Auto-generated constructor stub
    }

    /**
     * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // TODO Auto-generated method stub
        String userName=LoginService.getInstance().getCurrentUserNameFromRequest(request);
        if(null==userName || userName.equals(""))
            userName=LoginService.getInstance().getCurrentUserNameFromRequestCookie(request);
        if(null==userName || userName.equals(""))
            userName="guest";
        response.getWriter().print(userName);
    }

    /**
     * @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);
    }

}

配置文件如下：

<!-- 配置一个servlet -->
<!-- servlet的配置 -->
<servlet>
    <!-- servlet的内部名称，自定义。尽量有意义 -->
    <servlet-name>GetCurUser</servlet-name>
    <!-- servlet的类全名： 包名+简单类名 -->
    <servlet-class>fr.sso.GetCurUser</servlet-class>
</servlet>
<!-- servlet的映射配置 -->
<servlet-mapping>
    <!-- servlet的内部名称，一定要和上面的内部名称保持一致！！ -->
    <servlet-name>GetCurUser</servlet-name>
    <!-- servlet的映射路径（访问servlet的名称） -->
    <url-pattern>/GetCurUser.do</url-pattern>
</servlet-mapping>