是否可以在 Spring 中以基于表单的身份验证发送更多数据？

我对这个比较陌生Spring框架 http://en.wikipedia.org/wiki/Spring_Framework和春季安全。

我使用了自定义身份验证方案 HTML：

<form action="j_spring_security_check">
    <input type="text" name="j_username" value="abc"/>
    <input type="text" name="j_password" value="abc"/>
    <input type="text" name="myCustom1" value="pqr"/> <!-- maybe type="hidden" -->
    <input type="text" name="myCustom2" value="pqr"/> <!-- maybe type="hidden" -->
</form>

以及相应的代码：

public class CustomAuthenticationProvider extends AbstractUserDetailsAuthenticationProvider
{
    @Override protected void additionalAuthenticationChecks(UserDetails userDetails, UsernamePasswordAuthenticationToken usernamePasswordAuthenticationToken)
    throws AuthenticationException
    {
        System.out.println("Method invoked : additionalAuthenticationChecks isAuthenticated ? :"+usernamePasswordAuthenticationToken.isAuthenticated());
    }

    @Override protected UserDetails retrieveUser(String username,UsernamePasswordAuthenticationToken authentication)
    throws AuthenticationException
    {
        System.out.println("Method invoked : retrieveUser");
        //I have Username,password:
        //HOW CAN I ACCESS "myCustom1", "myCustom2" here ?
    }
}

以上都是很棒且完美的解决方案。 但我使用了一种解决方案，效果非常好。 用于 ThreadLocal 的多租户 ID

package com.mypackage.servlet;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

import org.springframework.util.Assert;

public class ThreadLocalContextUtil implements Filter{
     private static final ThreadLocal<Object> contextHolder =
                new ThreadLocal<Object>();

       public static void setTenantId(Object tenantId) {
          Assert.notNull(tenantId, "customerType cannot be null");
          contextHolder.set(tenantId);
       }

       public static Object getTenantId() {
          return contextHolder.get();
       }

       public static void clearTenant() {
          contextHolder.remove();
       }

    public void destroy() {

    }

    public void doFilter(ServletRequest request, ServletResponse response,
            FilterChain chain) throws IOException, ServletException {
        // Set the tenant Id into a ThreadLocal object
        ThreadLocalContextUtil.setTenantId(request);
        if(chain != null)
            chain.doFilter(request, response);
        else {
            //error
        }
    }

    public void init(FilterConfig filterconfig) throws ServletException {

    }
}

弹簧安全XML

<security:http auto-config="true" use-expressions="true" access-denied-page="/forms/auth/403" >
    <security:custom-filter before="FIRST" ref="tenantFilter" />
    ......
    </security:http>

访问您的身份验证类中的请求对象

HttpServletRequest currRequest = (HttpServletRequest) ThreadLocalContextUtil.getTenantId();

然后使用请求对象来获取您的自定义参数