Java 如何告诉HttpServletRequest使用DatabaseServerLoginModule而不是其他？

对于JBoss AS（在我的例子中是7.1.1），我没有理解的是如何告诉HttpServletRequest对象使用

DatabaseServerLoginModule

而不是

UsernamePasswordLoginModule

。这里是托管bean中执行的代码。我希望整个应用程序（每个HttpServletRequest对象）使用相同的领域、相同的登录模块

        HttpServletRequest request = (HttpServletRequest) facesContext
                .getExternalContext().getRequest();

        log.fine("A login request was issued from " + request.getRemoteHost()
                + ":" + request.getRemotePort());
        try {
            request.login(getUsername(), getPassword());
            if (request.isUserInRole("admin"))
                log.info("The logged in user is an administrator (admin)");
            else
                log.info("The logged in user is NOT an administrator (admin)");
        } catch (ServletException e) {
            log.warning("Failed to login with username (" + username
                    + ") and password. " + e.getMessage());
            facesContext.addMessage(null, new FacesMessage(
                    FacesMessage.SEVERITY_WARN,
                    "Login failed when tying to authenticate.", null));
            // If this fails, return null.
            return null;
        }

这里是我的standalone.xml文件中的领域配置

<security-domain name="ccmsSecurityDomain">
                    <authentication>
                        <login-module code="Database" flag="required">
                            <module-option name="dsJndiName" value="java:jboss/datasources/CcmsDS"/>
                            <module-option name="principalsQuery" value="SELECT password FROM user WHERE username=?"/>
                            <module-option name="rolesQuery" value="SELECT role, 'Roles' FROM user JOIN user_role ON user.id = user_role.users_id JOIN role ON user_role.roles_id = role.id WHERE username=?"/>
                            <module-option name="hashAlgorithm" value="SHA-256"/>
                            <module-option name="hashEncoding" value="BASE64"/>
                            <module-option name="hashUserPassword" value="true"/>
                            <module-option name="hashStorePassword" value="false"/>
                        </login-module>
                    </authentication>
                </security-domain>

---

我的代码正确，我的配置几乎正确

我删除了standalone.xml文件中的hasing和encoding声明。而且效果很好

<module-option name="hashAlgorithm" value="SHA-256"/>
<module-option name="hashEncoding" value="BASE64"/>
<module-option name="hashUserPassword" value="true"/>
<module-option name="hashStorePassword" value="false"/>

我需要单独重新研究散列，但很高兴知道登录代码正确连接到数据库并验证密码

<module-option name="hashAlgorithm" value="SHA-256"/>
<module-option name="hashEncoding" value="BASE64"/>
<module-option name="hashUserPassword" value="true"/>
<module-option name="hashStorePassword" value="false"/>