spring security3.0的ACL使用例子

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spring security

Spring Security Bean JSP Servlet

这个例子是参考www.family168.com中的例子来做的，不过使用的是spring security 3.0.4。spring security的acl的默认使用的是用jdbc来对数据做持久化，因此这个例子也是在这个基础上来用的，在这个例子中使用的数据库是mysql。

首先是定义spring security的acl的四个基本表的sql定义：

CREATE TABLE `acl_sid` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT,
  `principal` tinyint(1) NOT NULL,
  `sid` varchar(100) NOT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `unique_uk_1` (`sid`,`principal`)
) ENGINE=InnoDB AUTO_INCREMENT=8 DEFAULT CHARSET=utf8;

CREATE TABLE `acl_class` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT,
  `class` varchar(100) NOT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `unique_uk_2` (`class`)
) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8;

CREATE TABLE `acl_object_identity` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT,
  `object_id_class` bigint(20) NOT NULL,
  `object_id_identity` bigint(20) NOT NULL,
  `parent_object` bigint(20) DEFAULT NULL,
  `owner_sid` bigint(20) NOT NULL,
  `entries_inheriting` tinyint(1) NOT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `unique_uk_3` (`object_id_class`,`object_id_identity`),
  KEY `foreign_fk_1` (`parent_object`),
  KEY `foreign_fk_3` (`owner_sid`),
  CONSTRAINT `acl_object_identity_ibfk_1` FOREIGN KEY (`parent_object`) REFERENCES `acl_object_identity` (`id`),
  CONSTRAINT `acl_object_identity_ibfk_2` FOREIGN KEY (`object_id_class`) REFERENCES `acl_class` (`id`),
  CONSTRAINT `acl_object_identity_ibfk_3` FOREIGN KEY (`owner_sid`) REFERENCES `acl_sid` (`id`)

CREATE TABLE `acl_entry` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT,
  `acl_object_identity` bigint(20) NOT NULL,
  `ace_order` int(11) NOT NULL,
  `sid` bigint(20) NOT NULL,
  `mask` int(11) NOT NULL,
  `granting` tinyint(1) NOT NULL,
  `audit_success` tinyint(1) NOT NULL,
  `audit_failure` tinyint(1) NOT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `unique_uk_4` (`acl_object_identity`,`ace_order`),
  KEY `foreign_fk_5` (`sid`),
  CONSTRAINT `acl_entry_ibfk_1` FOREIGN KEY (`acl_object_identity`) REFERENCES `acl_object_identity` (`id`),
  CONSTRAINT `acl_entry_ibfk_2` FOREIGN KEY (`sid`) REFERENCES `acl_sid` (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8;

这四个表的说明如下：

1、ACL_SID让我们定义系统中唯一主体或授权（“SID”意思是“安全标识”——Spring Security Identity），是ACL认证对象。它包含的列有ID，一个文本类型的SID，以及principal。

其中，SID是Security ID的简称，表示一个被认证对象。记录一个用户名(USERBASE.NAME)或角色名(ROLES.NAME) 。如果按角色认证，SID就是对应的角色，如果按用户名认证，SID就是对应的用户名。用来表示是否使用文本显示引用的主体名或一个GrantedAuthority。

而principal是认证规则。1 SID为用户名，0 SID为角色名。因此，对每个唯一的主体或GrantedAuthority都有单独一行。在使用获得授权的环境下，一个SID通常叫做"recipient"授予者。

2、ACL_CLASS 让我们在系统中确定唯一的领域对象类。包含的列有ID和java类名。因此，对每个我们希望保存ACL权限的类都有单独一行。其中，class是所要操作的域对象类型，它是域对象类型的全限定名。只有在此表中的CLASS，才被准许进行ACL授权及验证。

3、ACL_OBJECT_IDENTITY 为系统中每个唯一的领域对象实例保存信息。列包括ID，指向ACL_CLASS的外键，唯一标识，所以我们知道为哪个ACL_CLASS实例提供信息，parent，一个外键指向ACL_SID 表，展示领域对象实例的拥有者，我们是否允许ACL条目从任何父亲ACL继承。我们对每个领域对象实例有一个单独的行，来保存ACL权限。

4、ACL_ENTRY保存分配给每个授予者单独的权限，表示ACL授予者权限。

其中，acl_object_identity表示ACL_OBJECT_IDENTITY的外键。ace_order表示用于ACE集合排序。sid表示recipient（比如一个ACL_SID外键），操作主体。mask表示一个整数位掩码，表示操作权限的掩码。 granting表示真实的权限被授权或被拒绝，1表示权限按MASK，0表示权限无效。 audit_success表示审计预留字段。，audit_failure表示审计预留字段。我们对于每个授予者都有单独一行，与领域对象工作获得一个权限。

二、配置aclService以及使用aclService

（1）首先是applicationContext-security.xml文件：

<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns="http://www.springframework.org/schema/security"
	xmlns:beans="http://www.springframework.org/schema/beans" xmlns:sec="http://www.springframework.org/schema/security"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans.xsd
                     http://www.springframework.org/schema/security 
                     http://www.springframework.org/schema/security/spring-security-3.0.4.xsd ">
	<http auto-config='true'>
		<intercept-url pattern="/admin.jsp" access="ROLE_ADMIN" />
		<intercept-url pattern="/**" access="ROLE_USER" />
	</http>
	<sec:authentication-manager>
		<sec:authentication-provider>
			<user-service>
				<user name="admin" password="admin" authorities="ROLE_USER, ROLE_ADMIN" />
				<user name="user" password="user" authorities="ROLE_USER" />
			</user-service>
		</sec:authentication-provider>
	</sec:authentication-manager>
	<global-method-security secured-annotations="enabled"
		access-decision-manager-ref="aclAccessDecisionManager" />
</beans:beans>

（2）然后我们需要配置aclService，它负责与数据库进行交互：

a、我们要为acl配置cache，默认使用ehcache，spring security提供了一些默认的实现类。

<bean id="aclCache" class="org.springframework.security.acls.domain.EhCacheBasedAclCache">
        <constructor-arg ref="aclEhCache"/>
    </bean>
    <bean id="aclEhCache" class="org.springframework.cache.ehcache.EhCacheFactoryBean">
        <property name="cacheManager" ref="cacheManager"/>
        <property name="cacheName" value="aclCache"/>
    </bean>

b、定义ehance.xml文件，在其中配置对应的aclCache缓存策略：

<ehcache>
    <diskStore path="java.io.tmpdir"/>
    <defaultCache
        maxElementsInMemory="1000"
        eternal="false"
        timeToIdleSeconds="120"
        timeToLiveSeconds="120"
        overflowToDisk="true"
    />
    <cache
        name="aclCache"
        maxElementsInMemory="1000"
        eternal="false"
        timeToIdleSeconds="600"
        timeToLiveSeconds="3600"
        overflowToDisk="true"
    />
</ehcache>

c、配置lookupStrategy。

简单来说，lookupStrategy的作用就是从数据库中读取信息，把这些信息提供给aclService使用，所以我们要为它配置一个dataSource，配置中还可以看到一个aclCache，这就是上面我们配置的缓存，它会把资源最大限度的利用起来。

   <bean id="lookupStrategy" class="org.springframework.security.acls.jdbc.BasicLookupStrategy">
        <constructor-arg ref="dataSource"/>
        <constructor-arg ref="aclCache"/>
        <constructor-arg>
            <bean class="org.springframework.security.acls.domain.AclAuthorizationStrategyImpl">
                <constructor-arg>
                    <list>
                        <ref local="adminRole"/>
                        <ref local="adminRole"/>
                        <ref local="adminRole"/>
                    </list>
                </constructor-arg>
            </bean>
        </constructor-arg>
        <constructor-arg>
            <bean class="org.springframework.security.acls.domain.ConsoleAuditLogger"/>
        </constructor-arg>
    </bean>
    <bean id="adminRole" class="org.springframework.security.core.authority.GrantedAuthorityImpl">
        <constructor-arg value="ROLE_ADMIN"/>
    </bean>

中间一部分可能会让人感到困惑，为何一次定义了三个adminRole呢？这是因为一旦acl信息被保存到数据库中，无论是修改它的从属者，还是变更授权，抑或是修改其他的ace信息，都需要控制操作者的权限，这里配置的三个权限将对应于上述的三种修改操作，我们把它配置成只有ROLE_ADMIN 才能执行这三种修改操作。

d、配置aclService

当我们已经拥有了dataSource, lookupStrategy和aclCache的时候，就可以用它们来组装aclService了，之后所有的acl操作都是基于aclService展开的：

    <bean id="aclService" class="org.springframework.security.acls.jdbc.JdbcMutableAclService">
        <constructor-arg ref="dataSource"/>
        <constructor-arg ref="lookupStrategy"/>
        <constructor-arg ref="aclCache"/>
        <property name="classIdentityQuery" value="SELECT @@IDENTITY"/>
		<property name="sidIdentityQuery" value="SELECT @@IDENTITY"/>	
    </bean>

这里要注意，如果上面的xml定义中没有：

 <property name="classIdentityQuery" value="SELECT @@IDENTITY"/>  
 <property name="sidIdentityQuery" value="SELECT @@IDENTITY"/>

这一部分的话，运行程序之后就会报以下的错误：

com.mysql.jdbc.exceptions.MySQLSyntaxErrorException: PROCEDURE xxxDB.identity does not exist

这主要是因为数据有区别导致的。在org.springframework.security.acls.jdbc.JdbcMutableAclService这个类中，classIdentityQuery 和sidIdentityQuery 的默认值都是“call identity() ”。如果在使用mysql时不给这两个属性赋值的话，就会报错。

（3）使用aclService管理acl信息

当我们添加了一条信息，要在acl中记录这条信息的ID，所有者，以及对应的授权信息。下列代码在添加信息后执行，用于添加对应的acl信息：

ObjectIdentity oid = new ObjectIdentityImpl(Message.class, message.getId());
MutableAcl acl = mutableAclService.createAcl(oid);
acl.insertAce(0, BasePermission.ADMINISTRATION,
    new PrincipalSid(owner), true);
acl.insertAce(1, BasePermission.DELETE,
    new GrantedAuthoritySid("ROLE_ADMIN"), true);
acl.insertAce(2, BasePermission.READ,
    new GrantedAuthoritySid("ROLE_USER"), true);
mutableAclService.updateAcl(acl);

第一步，根据class和id生成object的唯一标示。

第二步，根据object的唯一标示，创建一个acl。

第三步，为acl增加ace，这里我们让对象的所有者拥有对这个对象的“管理”权限，让“ROLE_ADMIN”拥有对这个对象的“删除”权限，让“ROLE_USER”拥有对这个对象的“读取”权限。

最后，更新acl信息。

当我们删除对象时，也要删除对应的acl信息。下列代码在删除信息后执行，用于删除对应的acl信息。

ObjectIdentity oid = new ObjectIdentityImpl(Message.class, id);
mutableAclService.deleteAcl(oid, false);

使用class和id可以唯一标示一个对象，然后使用deleteAcl()方法将对象对应的acl信息删除。

（4）使用acl控制delete操作

上述代码中，除了对象的拥有者之外，我们还允许“ROLE_ADMIN”也可以删除对象，但是我们不会允许除此之外的其他用户拥有删除对象的权限，为了限制对象的删除操作，我们需要修改Spring Security的默认配置。

首先要增加一个对delete操作起作用的表决器：

  <bean id="aclMessageDeleteVoter" class="org.springframework.security.acls.AclEntryVoter">
        <constructor-arg ref="aclService"/>
        <constructor-arg value="ACL_MESSAGE_DELETE"/>
        <constructor-arg>
            <list>
                <util:constant static-field="org.springframework.security.acls.domain.BasePermission.ADMINISTRATION"/>
                <util:constant static-field="org.springframework.security.acls.domain.BasePermission.DELETE"/>
            </list>
        </constructor-arg>
        <property name="processDomainObjectClass" value="net.kentop.acl.object.Message"></property>
    </bean>

它只对Message这个类起作用，而且可以限制只有管理和删除权限的用户可以执行删除操作。

然后要将这个表决器添加到AccessDecisionManager中：

    <bean id="aclAccessDecisionManager" class="org.springframework.security.access.vote.AffirmativeBased">
        <property name="decisionVoters">
            <list>
                <bean class="org.springframework.security.access.vote.RoleVoter"/>
                <ref local="aclMessageDeleteVoter"/>
            </list>
        </property>
    </bean>

现在AccessDecisionManager中有两个表决器了，除了默认的RoleVoter之外，又多了一个我们刚刚添加的aclMessageDeleteVoter。

现在可以把新的AccessDecisionManager赋予全局方法权限管理器了。

	<global-method-security secured-annotations="enabled"
		access-decision-manager-ref="aclAccessDecisionManager" />

然后我们就可以在MessageService.java中使用Secured注解，控制删除操作了。

    @Transactional
    @Secured("ACL_MESSAGE_DELETE")
    public void remove(Message message) {
        list.remove(message);
        ObjectIdentity oid = new ObjectIdentityImpl(Message.class,
                message.getId());
        mutableAclService.deleteAcl(oid, false);
    }

实际上，我们最好不要让没有权限的操作者看到remove这个链接，可以使用taglib隐藏当前用户无权看到的信息。

<sec:accesscontrollist domainObject="${item}" hasPermission="8,16">
      |
      <a href="message.do?action=remove&id=${item.id}" mce_href="message.do?
action=remove&id=${item.id}">Remove</a>
</sec:accesscontrollist>

8, 16是acl默认使用的掩码，8表示DELETE，16表示ADMINISTRATOR，当用户不具有这些权限的时候，他在页面上就看不到remove链接，也就无法执行操作了。

这比让用户可以执行remove操作，然后跑出异常，警告访问被拒绝要友好得多。

上面第二部分的xml定义全文如下,applicationContext-security-acl.xml：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:util="http://www.springframework.org/schema/util"
    xmlns:sec="http://www.springframework.org/schema/security"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans.xsd
    http://www.springframework.org/schema/util
    http://www.springframework.org/schema/util/spring-util.xsd
    http://www.springframework.org/schema/security
    http://www.springframework.org/schema/security/spring-security-3.0.4.xsd">
    <bean id="aclCache" class="org.springframework.security.acls.domain.EhCacheBasedAclCache">
        <constructor-arg ref="aclEhCache"/>
    </bean>
    <bean id="aclEhCache" class="org.springframework.cache.ehcache.EhCacheFactoryBean">
        <property name="cacheManager" ref="cacheManager"/>
        <property name="cacheName" value="aclCache"/>
    </bean>
    <bean id="lookupStrategy" class="org.springframework.security.acls.jdbc.BasicLookupStrategy">
        <constructor-arg ref="dataSource"/>
        <constructor-arg ref="aclCache"/>
        <constructor-arg>
            <bean class="org.springframework.security.acls.domain.AclAuthorizationStrategyImpl">
                <constructor-arg>
                    <list>
                        <ref local="adminRole"/>
                        <ref local="adminRole"/>
                        <ref local="adminRole"/>
                    </list>
                </constructor-arg>
            </bean>
        </constructor-arg>
        <constructor-arg>
            <bean class="org.springframework.security.acls.domain.ConsoleAuditLogger"/>
        </constructor-arg>
    </bean>
    <bean id="adminRole" class="org.springframework.security.core.authority.GrantedAuthorityImpl">
        <constructor-arg value="ROLE_ADMIN"/>
    </bean>
    <bean id="aclService" class="org.springframework.security.acls.jdbc.JdbcMutableAclService">
        <constructor-arg ref="dataSource"/>
        <constructor-arg ref="lookupStrategy"/>
        <constructor-arg ref="aclCache"/>
        <property name="classIdentityQuery" value="SELECT @@IDENTITY"/>
		<property name="sidIdentityQuery" value="SELECT @@IDENTITY"/>	
    </bean>
    <bean id="aclMessageDeleteVoter" class="org.springframework.security.acls.AclEntryVoter">
        <constructor-arg ref="aclService"/>
        <constructor-arg value="ACL_MESSAGE_DELETE"/>
        <constructor-arg>
            <list>
                <util:constant static-field="org.springframework.security.acls.domain.BasePermission.ADMINISTRATION"/>
                <util:constant static-field="org.springframework.security.acls.domain.BasePermission.DELETE"/>
            </list>
        </constructor-arg>
        <property name="processDomainObjectClass" value="net.kentop.acl.object.Message"></property>
    </bean>
    <bean id="aclAccessDecisionManager" class="org.springframework.security.access.vote.AffirmativeBased">
        <property name="decisionVoters">
            <list>
                <bean class="org.springframework.security.access.vote.RoleVoter"/>
                <ref local="aclMessageDeleteVoter"/>
            </list>
        </property>
    </bean>
</beans>

三、该例子的项目文件：

（1）要操作的类：Message.java：

package net.kentop.acl.object;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
public class Message implements Serializable {
    private Long id;
    private String message;
    private String owner;
    private Date createDate;
    private Date updateDate;
    public Long getId() {
        return id;
    }
    public void setId(Long id) {
        this.id = id;
    }
    public String getMessage() {
        return message;
    }
    public void setMessage(String message) {
        this.message = message;
    }
    public String getOwner() {
        return owner;
    }
    public void setOwner(String owner) {
        this.owner = owner;
    }
    public Date getCreateDate() {
        return createDate;
    }
    public void setCreateDate(Date createDate) {
        this.createDate = createDate;
    }
    public Date getUpdateDate() {
        return updateDate;
    }
    public void setUpdateDate(Date updateDate) {
        this.updateDate = updateDate;
    }
}

MessageService.java

package net.kentop.acl.object;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import org.springframework.security.access.annotation.Secured;
import org.springframework.security.acls.domain.BasePermission;
import org.springframework.security.acls.domain.GrantedAuthoritySid;
import org.springframework.security.acls.domain.ObjectIdentityImpl;
import org.springframework.security.acls.domain.PrincipalSid;
import org.springframework.security.acls.model.MutableAcl;
import org.springframework.security.acls.model.MutableAclService;
import org.springframework.security.acls.model.ObjectIdentity;
import org.springframework.transaction.annotation.Transactional;
public class MessageService {
    private List<Message> list = new ArrayList<Message>();
    private MutableAclService mutableAclService;
    public void setMutableAclService(MutableAclService mutableAclService) {
        this.mutableAclService = mutableAclService;
    }
    @Secured({"ROLE_USER", "AFTER_ACL_READ"})
    public Message get(Long id) {
        for (Message message : list) {
            if (message.getId().equals(id)) {
                return message;
            }
        }
        return null;
    }
    @Secured({"ROLE_USER", "AFTER_ACL_COLLECTION_READ"})
    public List getAll() {
        return list;
    }
    @Transactional
    @Secured("ROLE_USER")
    public void save(String messageContent, String owner) {
        Message message = new Message();
        message.setId(System.currentTimeMillis());
        message.setMessage(messageContent);
        message.setOwner(owner);
        message.setCreateDate(new Date());
        message.setUpdateDate(new Date());
        list.add(message);
        ObjectIdentity oid = new ObjectIdentityImpl(Message.class,
                message.getId());
        MutableAcl acl = mutableAclService.createAcl(oid);
        acl.insertAce(0, BasePermission.ADMINISTRATION,
            new PrincipalSid(owner), true);
        acl.insertAce(1, BasePermission.DELETE,
            new GrantedAuthoritySid("ROLE_ADMIN"), true);
        acl.insertAce(2, BasePermission.READ,
            new GrantedAuthoritySid("ROLE_USER"), true);
        mutableAclService.updateAcl(acl);
    }
    public void update(Long id, String messageContent) {
        Message message = this.get(id);
        message.setMessage(messageContent);
        message.setUpdateDate(new Date());
    }
    public void removeById(Long id) {
        Message message = this.get(id);
        this.remove(message);
    }
    @Transactional
    @Secured("ACL_MESSAGE_DELETE")
    public void remove(Message message) {
        list.remove(message);
        ObjectIdentity oid = new ObjectIdentityImpl(Message.class,
                message.getId());
        mutableAclService.deleteAcl(oid, false);
    }
}

MessageServlet.java：

package net.kentop.servlet;
import java.io.IOException;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import net.kentop.acl.object.Message;
import net.kentop.acl.object.MessageService;
import org.springframework.context.ApplicationContext;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.web.context.support.WebApplicationContextUtils;
public class MessageServlet extends HttpServlet {
    private MessageService messageService;
    private MessageService getMessageService() {
        if (messageService == null) {
            ApplicationContext ctx = WebApplicationContextUtils
                .getWebApplicationContext(this.getServletContext());
            messageService = (MessageService) ctx.getBean("messageService");
        }
        return messageService;
    }
    public void doGet(HttpServletRequest request,
        HttpServletResponse response) throws IOException, ServletException {
        try {
            process(request, response);
        } catch (Exception ex) {
            throw new ServletException(ex);
        }
    }
    public void doPost(HttpServletRequest request,
        HttpServletResponse response) throws IOException, ServletException {
        try {
            process(request, response);
        } catch (Exception ex) {
            throw new ServletException(ex);
        }
    }
    public void process(HttpServletRequest request,
        HttpServletResponse response) throws Exception {
        String action = request.getParameter("action");
        if ("view".equals(action)) {
            this.view(request, response);
        } else if ("list".equals(action)) {
            this.list(request, response);
        } else if ("save".equals(action)) {
            this.save(request, response);
        } else if ("update".equals(action)) {
            this.update(request, response);
        } else if ("remove".equals(action)) {
            this.remove(request, response);
        } else if ("create".equals(action)) {
            this.create(request, response);
        } else if ("edit".equals(action)) {
            this.edit(request, response);
        } else {
            System.out.println("Unkown Action: " + action);
        }
    }
    public void view(HttpServletRequest request,
        HttpServletResponse response) throws Exception {
        Long id = Long.valueOf(request.getParameter("id"));
        Message message = getMessageService().get(id);
        request.setAttribute("message", message);
        request.getRequestDispatcher("/message-view.jsp")
               .forward(request, response);
    }
    public void list(HttpServletRequest request,
        HttpServletResponse response) throws Exception {
        List<Message> list = getMessageService().getAll();
        request.setAttribute("list", list);
        request.getRequestDispatcher("/message-list.jsp")
               .forward(request, response);
    }
    public void save(HttpServletRequest request,
        HttpServletResponse response) throws Exception {
        String message = request.getParameter("message");
        UserDetails userDetails = (UserDetails) SecurityContextHolder.getContext()
                                                                     .getAuthentication()
                                                                     .getPrincipal();
        String username = userDetails.getUsername();
        getMessageService().save(message, username);
        response.sendRedirect("message.do?action=list");
    }
    public void update(HttpServletRequest request,
        HttpServletResponse response) throws Exception {
        Long id = Long.valueOf(request.getParameter("id"));
        String message = request.getParameter("message");
        getMessageService().update(id, message);
        response.sendRedirect("message.do?action=list");
    }
    public void remove(HttpServletRequest request,
        HttpServletResponse response) throws Exception {
        Long id = Long.valueOf(request.getParameter("id"));
        getMessageService().removeById(id);
        response.sendRedirect("message.do?action=list");
    }
    public void create(HttpServletRequest request,
        HttpServletResponse response) throws Exception {
        request.getRequestDispatcher("/message-edit.jsp")
               .forward(request, response);
    }
    public void edit(HttpServletRequest request,
        HttpServletResponse response) throws Exception {
        Long id = Long.valueOf(request.getParameter("id"));
        Message message = getMessageService().get(id);
        request.setAttribute("message", message);
        request.getRequestDispatcher("/message-edit.jsp")
               .forward(request, response);
    }
}

（2）web.xml文件：

<?xml version="1.0" encoding="UTF-8"?>
<!--
  - Tutorial web application
  -
  -->
<web-app xmlns="http://java.sun.com/xml/ns/j2ee"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" version="2.4">
  
  <display-name>acltest</display-name>
  
   <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:applicationContext-*.xml</param-value>
    </context-param>
    <filter>
        <filter-name>springSecurityFilterChain</filter-name>
        <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>springSecurityFilterChain</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    <servlet>
        <servlet-name>MessageServlet</servlet-name>
        <servlet-class>net.kentop.servlet.MessageServlet</servlet-class>
    </servlet>
    <servlet-mapping>
        <servlet-name>MessageServlet</servlet-name>
        <url-pattern>/message.do</url-pattern>
    </servlet-mapping>
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
</web-app>

（3）jsp文件：

message_list.jsp:

<%@page contentType="text/html;charset=UTF-8"%>
<%@ taglib prefix="sec" uri="http://www.springframework.org/security/tags" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt"%>
<%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions"%>
<c:set var="ctx" value="${pageContext.request.contextPath}" />
<html>
<head>
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8" />
<title>list</title>
</head>
<body>
<table width="100%">
	<tr>
		<td><a href="message.do?action=create" mce_href="message.do?action=create">Create Message</a></td>
		<td align="right">username: <sec:authentication property="name" />
		| <a href="j_spring_security_logout" mce_href="j_spring_security_logout">logout</a></td>
	</tr>
</table>
<hr>
<table border="1" width="100%">
	<tr>
		<th>ID</th>
		<th>Message</th>
		<th>Owner</th>
		<th>Create Date</th>
		<th>Update Date</th>
		<th>Operation</th>
	</tr>
	<c:forEach var="item" items="${list}">
		<tr>
			<td>${item.id} </td>
			<td>${item.message} </td>
			<td>${item.owner} </td>
			<td><fmt:formatDate pattern="yyyy-MM-dd HH:mm:ss"
				value="${item.createDate}" /> </td>
			<td><fmt:formatDate pattern="yyyy-MM-dd HH:mm:ss"
				value="${item.updateDate}" /> </td>
			<td><a href="message.do?action=view&id=${item.id}" mce_href="message.do?action=view&id=${item.id}">View</a> | <a
				href="message.do?action=edit&id=${item.id}">Update</a> <sec:accesscontrollist
				domainObject="${item}" hasPermission="8,16">
          |
          <a href="message.do?action=remove&id=${item.id}" mce_href="message.do?action=remove&id=${item.id}">Remove</a>
			</sec:accesscontrollist></td>
		</tr>
	</c:forEach>
</table>
</body>
</html>

message_edit.jsp:

<%@page contentType="text/html;charset=UTF-8"%>
<%@ taglib prefix="sec" uri="http://www.springframework.org/security/tags" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt"%>
<%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions"%>
<c:set var="ctx" value="${pageContext.request.contextPath}"/>
<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html;charset=UTF-8"/>
    <title>edit</title>
  </head>
  <body>
    <table width="100%">
      <tr>
        <td><a href="message.do?action=list" mce_href="message.do?action=list">Back</a></td>
        <td align="right">
          username: <sec:authentication property="name"/>
          |
          <a href="j_spring_security_logout" mce_href="j_spring_security_logout">logout</a>
        </td>
      </tr>
    </table>
    <hr>
    <fieldset>
      <legend>Message Info</legend>
      <form method="post" action="message.do?action=${param.action == 'create' ? 'save' : 'update'}">
        <input type="hidden" name="id" value="${message.id}">
        <table>
          <tr>
            <td>Message:</td>
            <td><input type="text" name="message" value="${message.message}"></td>
          </tr>
          <tr>
            <td colspan="2">
              <input type="submit">
              <input type="reset">
            </td>
          </tr>
        </table>
      </form>
    </fieldset>
  </body>
</html>

message_view.jsp:

<%@page contentType="text/html;charset=UTF-8"%>
<%@ taglib prefix="sec" uri="http://www.springframework.org/security/tags" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt"%>
<%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions"%>
<c:set var="ctx" value="${pageContext.request.contextPath}"/>
<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html;charset=UTF-8"/>
    <title>view</title>
  </head>
  <body>
    <table width="100%">
      <tr>
        <td><a href="message.do?action=list" mce_href="message.do?action=list">Back</a></td>
        <td align="right">
          username: <sec:authentication property="name"/>
          |
          <a href="j_spring_security_logout" mce_href="j_spring_security_logout">logout</a>
        </td>
      </tr>
    </table>
    <hr>
    <fieldset>
      <legend>Message Info</legend>
      <table>
        <tr>
          <td>ID:</td>
          <td>${message.id}</td>
        </tr>
        <tr>
          <td>Message:</td>
          <td>${message.message}</td>
        </tr>
        <tr>
          <td>Owner:</td>
          <td>${message.owner}</td>
        </tr>
        <tr>
          <td>Create Date:</td>
          <td><fmt:formatDate pattern="yyyy-MM-dd HH:mm:ss" value="${message.createDate}"/></td>
        </tr>
        <tr>
          <td>Update Date:</td>
          <td><fmt:formatDate pattern="yyyy-MM-dd HH:mm:ss" value="${message.updateDate}"/></td>
        </tr>
      </table>
    </fieldset>
  </body>
</html>

四、整个项目的下载地址如下：

http://download.csdn.net/source/2851702

分享到：

activeMQ的两个连接错误及处理方法 | 解决使用activemq时抛出的异常：javax.j ms ...

2010-11-22 15:00
浏览 7862
评论(6)
分类:企业架构
查看更多

6 楼 zhcheng 2013-01-10

我就是按照你这个配置的，别的地方都没有问题，只有在使用标签的时候总是报错。
java.lang.NullPointerException
org.springframework.security.taglibs.authz.AccessControlListTag.doStartTag(AccessControlListTag.java:92)

<sec:accesscontrollist domainObject="${item }" hasPermission="8">

版本是3.1.3
这是怎么个情况啊。

5 楼 bhdweb 2012-09-16

项目中的角色名是死的？直接用户注解写在方法上？

4 楼孙露威 2011-07-30

学习了支持楼主

3 楼 zhuchao_ko 2011-02-11

哥们用到哪些JAR能说下吗。。。

2 楼 zhuchao_ko 2011-02-11

整理了下脚本：

select * from acl_sid
drop table acl_sid

CREATE TABLE acl_sid (
id bigint(20) NOT NULL AUTO_INCREMENT,
principal tinyint(1) NOT NULL,
sid varchar(100) NOT NULL,
PRIMARY KEY (id),
UNIQUE KEY unique_uk_1 (sid,principal)
) ENGINE=InnoDB AUTO_INCREMENT=8 DEFAULT CHARSET=utf8;

select * from acl_class
drop table acl_class
CREATE TABLE acl_class (
id bigint(20) NOT NULL AUTO_INCREMENT,
class varchar(100) NOT NULL,
PRIMARY KEY (id),
UNIQUE KEY unique_uk_2 (class)
) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8;

select * from acl_object_identity
drop table acl_object_identity
CREATE TABLE acl_object_identity (
id bigint(20) NOT NULL AUTO_INCREMENT,
object_id_class bigint(20) NOT NULL,
object_id_identity bigint(20) NOT NULL,
parent_object bigint(20) DEFAULT NULL,
owner_sid bigint(20) NOT NULL,
entries_inheriting tinyint(1) NOT NULL,
PRIMARY KEY (id),
UNIQUE KEY unique_uk_3 (object_id_class,object_id_identity),
KEY foreign_fk_1 (parent_object),
KEY foreign_fk_3 (owner_sid),
CONSTRAINT acl_object_identity_ibfk_1 FOREIGN KEY (parent_object) REFERENCES acl_object_identity (id),
CONSTRAINT acl_object_identity_ibfk_2 FOREIGN KEY (object_id_class) REFERENCES acl_class (id),
CONSTRAINT acl_object_identity_ibfk_3 FOREIGN KEY (owner_sid) REFERENCES acl_sid (id)
)

CREATE TABLE acl_entry (
id bigint(20) NOT NULL AUTO_INCREMENT,
acl_object_identity bigint(20) NOT NULL,
ace_order int(11) NOT NULL,
sid bigint(20) NOT NULL,
mask int(11) NOT NULL,
granting tinyint(1) NOT NULL,
audit_success tinyint(1) NOT NULL,
audit_failure tinyint(1) NOT NULL,
PRIMARY KEY (id),
UNIQUE KEY unique_uk_4 (acl_object_identity,ace_order),
KEY foreign_fk_5 (sid),
CONSTRAINT acl_entry_ibfk_1 FOREIGN KEY (acl_object_identity) REFERENCES acl_object_identity (id),
CONSTRAINT acl_entry_ibfk_2 FOREIGN KEY (sid) REFERENCES acl_sid (id)
) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8;

1 楼 bingki 2011-01-28

严重: Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'aclCache' defined in file [G:\apache-tomcat-6.0.18\webapps\acltest\WEB-INF\classes\applicationContext-security-acl.xml]: Cannot resolve reference to bean 'aclEhCache' while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'aclEhCache' defined in file [G:\apache-tomcat-6.0.18\webapps\acltest\WEB-INF\classes\applicationContext-security-acl.xml]: Instantiation of bean failed; nested exception is java.lang.NoClassDefFoundError: net/sf/ehcache/Ehcache

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