spring security3.0的ACL使用例子
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：