SpringSecurity兑现多登录成功页面和登录成功返回被拦截界面

SpringSecurity实现多登录成功页面和登录成功返回被拦截界面

使用SrpingSceurity作为认证和授权的安全框架可以省下很多基础工作.

具体可以参考SpringSecurity,这里不多说了.主要是记录一下使用中碰到的问题.

问题1

项目有不同客户端需要不同的返回界面,比如Android的登录返回json格式数据.网页登录跳转到登录成功页面.

SpringSecurity的默认配置是做不到这点的.以下是配置登录成功页面的地方.

<s:form-login login-page="/login.action" default-target-url="/loginsuccess.jsp" authentication-failure-url="/login.action?error=true" /> 

这里如果loginsuccess.jsp页面是登录成功页,那么Android的登录就不好返回json格式了.

解决方法

使用AuthenticationSuccessHandler

----------------示例见下----------------

1.定制自己的AuthenticationSuccessHandler类,实现AuthenticationSuccessHandler接口

package com.gt.util;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.lang.StringUtils;
import org.springframework.security.core.Authentication;
import org.springframework.security.web.authentication.AuthenticationSuccessHandler;

public class MyAuthenticationSuccessHandler implements
        AuthenticationSuccessHandler {

    @Override
    public void onAuthenticationSuccess(HttpServletRequest request,
            HttpServletResponse response, Authentication auth)
            throws IOException, ServletException {
        String f = request.getParameter("f");
        if (StringUtils.isNotEmpty(f)) {
            if(f.equals("android")){
                response.setCharacterEncoding("UTF-8");
                response.getWriter().write("登录成功"+LoginUserUtil.getUser());
            }

        }else{

            request.getRequestDispatcher("/account/user.exp").forward(request, response);

        }

    }

}

2.登录页面中指定f参数.只是示例,可以自己根据业务定制.

3.修改配置文件

增加authentication-success-handler-ref="expaiSuccessHandler"

去掉default-target-url="/loginsuccess.jsp"

<s:form-login login-page="/login.exp" authentication-success-handler-ref="expaiSuccessHandler" authentication-failure-url="/login.exp?error=true" />

官方文档介绍

Attribute : authentication-success-handler-ref

Reference to an AuthenticationSuccessHandler bean which should be used to handle a successful

authentication request. Should not be used in combination with default-target-url (or always-use-

default-target-url) as the implementation should always deal with navigation to the subsequent

destination

4.修改配置文件,增加bean定义

<bean id="expaiSuccessHandler" class="com.gt.util.MyAuthenticationSuccessHandler"></bean>

---------------------------问题1end---------------------

问题2

登录后返回拦截前的界面

思路

在拦截后,进入登录页面前,把被拦截地址放入session中.登录成功从session取出被拦截地址并且跳转.

-------------代码示例-----------

1.增加MyLoginUrlAuthenticationEntryPoint 继承 LoginUrlAuthenticationEntryPoint

package com.gt.util;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.authentication.LoginUrlAuthenticationEntryPoint;
import org.springframework.security.web.util.RedirectUrlBuilder;

public class MyLoginUrlAuthenticationEntryPoint extends LoginUrlAuthenticationEntryPoint {

    public void commence(HttpServletRequest request, HttpServletResponse response, AuthenticationException authException)
            throws IOException, ServletException {
        String returnUrl = buildHttpReturnUrlForRequest(request);
        request.getSession().setAttribute("ru", returnUrl);
        super.commence(request, response, authException);
    }

    protected String buildHttpReturnUrlForRequest(HttpServletRequest request)
            throws IOException, ServletException {

        RedirectUrlBuilder urlBuilder = new RedirectUrlBuilder();
        urlBuilder.setScheme("http");
        urlBuilder.setServerName(request.getServerName());
        urlBuilder.setPort(request.getServerPort());
        urlBuilder.setContextPath(request.getContextPath());
        urlBuilder.setServletPath(request.getServletPath());
        urlBuilder.setPathInfo(request.getPathInfo());
        urlBuilder.setQuery(request.getQueryString());

        return urlBuilder.getUrl();
    }

}

2.修改配置文件,增加引用

<s:http auto-config="true" use-expressions="true" entry-point-ref="loginUrlAuthenticationEntryPoint">
<bean id="loginUrlAuthenticationEntryPoint" class="com.gt.util.MyLoginUrlAuthenticationEntryPoint">
        <property name="useForward" value="true" />
        <property name="loginFormUrl" value="/login.exp" />
</bean>

3.修改MyAuthenticationSuccessHandler,增加获取被拦截地址并且跳转代码

package com.gt.util;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.lang.StringUtils;
import org.springframework.security.core.Authentication;
import org.springframework.security.web.authentication.AuthenticationSuccessHandler;

public class MyAuthenticationSuccessHandler implements AuthenticationSuccessHandler {
    @Override
    public void onAuthenticationSuccess(HttpServletRequest request,
            HttpServletResponse response, Authentication auth)
            throws IOException, ServletException {
        String f = request.getParameter("f");
        if (StringUtils.isNotEmpty(f)) {
            if(f.equals("android")){
                response.setCharacterEncoding("UTF-8");
                response.getWriter().write("登录成功"+LoginUserUtil.getUser());
            }

        }else{
            String ru = (String)request.getSession().getAttribute("ru");
            request.getSession().removeAttribute("ru");
            if(StringUtils.isNotEmpty(ru)){
                response.sendRedirect(ru);
                //request.getRequestDispatcher(ru).forward(request, response);
            }else{
                request.getRequestDispatcher("/account/user.exp").forward(request, response);
            }

        }

    }

}