本文共 2340 字，大约阅读时间需要 7 分钟。

这两天发现一个问题，如题，尝试了很多方法，都没法解决，真是很郁闷。最后看源码才知道，我的配置如下。原意是从/api/user/login登录成功后，跳转到/index，但是怎么都不能跳转到/index。原来authc拦截器（即FormAuthenticationFilter），验证成功后只会跳转到最开始你进入的页面，因为我是从/api/user/login页面进入登录，所以只会跳转到/api/user/login。要想跳转到/index页面，只有最开始从/index页面进入，后台会重定向到/api/user/login页面，验证成功后，才返回/index页面。

配置如下：

       
           
            
            
            
            
                
             
            
                
     
                      /static/** = anon                /api/user/login = authc                /api/user/logout = logout                /api/user/register* = anon                /unauthorized = anon                /** = user            
             
        
   

FormAuthenticationFilter部分源码：

protected boolean onLoginSuccess(AuthenticationToken token, Subject subject,                                     ServletRequest request, ServletResponse response) throws Exception {        issueSuccessRedirect(request, response);        //we handled the success redirect directly, prevent the chain from continuing:        return false;    }

从源码我们可以看出，登录成功后，会执行

protected void issueSuccessRedirect(ServletRequest request, ServletResponse response) throws Exception {        WebUtils.redirectToSavedRequest(request, response, getSuccessUrl());    }

这个方法就是

public static void redirectToSavedRequest(ServletRequest request, ServletResponse response, String fallbackUrl)            throws IOException {        String successUrl = null;        boolean contextRelative = true;        SavedRequest savedRequest = WebUtils.getAndClearSavedRequest(request);        if (savedRequest != null && savedRequest.getMethod().equalsIgnoreCase(AccessControlFilter.GET_METHOD)) {            successUrl = savedRequest.getRequestUrl();            contextRelative = false;        }        if (successUrl == null) {            successUrl = fallbackUrl;        }        if (successUrl == null) {            throw new IllegalStateException("Success URL not available via saved request or via the " +                    "successUrlFallback method parameter. One of these must be non-null for " +                    "issueSuccessRedirect() to work.");        }        WebUtils.issueRedirect(request, response, successUrl, null, contextRelative);    }

关键在于successUrl = savedRequest.getRequestUrl()，会把successUrl重新赋值，配置的/index失效。

转载地址：http://mthrb.baihongyu.com/