精华帖 (0) :: 良好帖 (0) :: 新手帖 (0) :: 隐藏帖 (0)
|
|
---|---|
作者 | 正文 |
发表时间:2007-02-07
JavaEye,SpringSide和在网上提供acegi学习心得的网友们。
最近两星期在学习acegi,过程中感谢为了加深自己的认识,准备写下一些DEMO,希望可以给准备学习acegi的同学一些帮助。 作为安全服务离不开认证和授权这两个主要组成部分。而这篇文章就是针对acegi的认证服务。 《学习Acegi-认证(authentication)》 代码环境基于: JDK1.5 acegi1.0.3 spring2.0 IDE基于: Eclipse3.2+MyEclipse5.0.1 面向人员: 熟悉Eclipse+MyEclipse开发但刚开始了解acegi的人员。如果你是高手请指出文章不足之处。 1.建立一个MyEclipse的WebProject,把下列jar文件拷贝到项目的WEB-INF/lib目录: acegi-security-1.0.3.jar spring2.0.jar commons-codec-1.3.jar 费话说一句(占些字数):这是因为代码运行需要这些包的支持。 2.修改WEB-INF下的web.xml文件,内容如下: <?xml version="1.0" encoding="UTF-8"?> <web-app> <display-name>acegi Example of liuyxit</display-name> <!-- 定义应用的上下文参数,用于ContextLoaderListener --> <context-param> <param-name>contextConfigLocation</param-name> <param-value> classpath:spring/applicationContext.xml </param-value> </context-param> <!--acegi 的filter链代理--> <filter> <filter-name>Acegi Filter Chain Proxy</filter-name> <filter-class> org.acegisecurity.util.FilterToBeanProxy </filter-class> <init-param> <param-name>targetClass</param-name> <param-value> org.acegisecurity.util.FilterChainProxy </param-value> </init-param> </filter> <filter-mapping> <filter-name>Acegi Filter Chain Proxy</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- 装载应用软件的Spring上下文 要由WebapplicationContextUtils.getWebApplicationnContext(servletContext)得到. --> <listener> <listener-class> org.springframework.web.context.ContextLoaderListener </listener-class> </listener> </web-app> 其中FilterChainProxy实现了filter接口,它主要是实例化FilterChainProxy,并把所有动作交由FilterChainProxy处理。这样简化了web.xml的配置,并且充分利用了Spring IOC管理Bean的优势。 3.在src目录右键新建一个resource folder,在下面再建立acegi和spring目录 在spring目录中创建applicationContext.xml文件,内容: <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd" default-autowire="byName" default-lazy-init="true"> <!-- ======================== FILTER CHAIN ======================= --> <bean id="filterChainProxy" class="org.acegisecurity.util.FilterChainProxy"> <property name="filterInvocationDefinitionSource"> <value> CONVERT_URL_TO_LOWERCASE_BEFORE_COMPARISON PATTERN_TYPE_APACHE_ANT /**=authenticationProcessingFilter,exceptionTranslationFilter </value> </property> </bean> <!-- ======================== 认证filter ======================= --> <!-- 表单认证处理filter --> <bean id="authenticationProcessingFilter" class="org.acegisecurity.ui.webapp.AuthenticationProcessingFilter"> <property name="authenticationManager" ref="authenticationManager"/> <property name="authenticationFailureUrl" value="/acegilogin.jsp?login_error=1"/> <property name="defaultTargetUrl" value="/userinfo.jsp"/> <property name="filterProcessesUrl" value="/j_acegi_security_check"/> </bean> <!-- 认证管理器 --> <bean id="authenticationManager" class="org.acegisecurity.providers.ProviderManager"> <property name="providers"><!-- 可有多个认证提供器,其中一个证通过就可以了 --> <list> <ref local="daoAuthenticationProvider"/> </list> </property> </bean> <bean id="daoAuthenticationProvider" class="org.acegisecurity.providers.dao.DaoAuthenticationProvider"> <property name="userDetailsService" ref="inMemoryDaoImpl"/> </bean> <!-- 用户资料--> <bean id="inMemoryDaoImpl" class="org.acegisecurity.userdetails.memory.InMemoryDaoImpl"> <property name="userMap"> <value> liuyxit=123,ROLE_SUPERVISOR user1=user1,ROLE_USER user2=user2,disabled,ROLE_USER </value> </property> </bean> <!-- 异常处理filter --> <bean id="exceptionTranslationFilter" class="org.acegisecurity.ui.ExceptionTranslationFilter"> <property name="authenticationEntryPoint"> <bean class="org.acegisecurity.ui.webapp.AuthenticationProcessingFilterEntryPoint"> <property name="loginFormUrl" value="/acegilogin.jsp"/> <property name="forceHttps" value="false"/> </bean> </property> <property name="accessDeniedHandler"> <bean class="org.acegisecurity.ui.AccessDeniedHandlerImpl"> <property name="errorPage" value="/accessDenied.jsp"/> </bean> </property> </bean> </beans> [list=A]其中filterChainProxy就是由web.xml声明的filter(FilterToBeanProxy)的targetClass。它主要是装载filterInvocationDefinitionSource指定的filter类(例子中为authenticationProcessingFilter,exceptionTranslationFilter),并顺序调用它们的doFilter方法,进行安全服务处理。[/list] [list=B]而authenticationProcessingFilter是处理一个认证表单,登陆用的表单必须提交用户名和密码这两个参数给这个filter.由用户名和密码构造一个UsernamePasswordAuthenticationToken,将传给AuthenticationManager的authenticate方法进行认证处理。该filter默认处理filterProcessesUrl属性指定的URL,认证失败会转到authenticationFailureUrl,认证成功会转到defaultTargetUrl页面。[/list] [list=C]AuthenticationManager顾名思义认证管理器,它只有一个接口方法authenticate用于返回认证结果,他的实现类由多个AuthenticationProvider进行投票,决定认证是否通过。[/list] [list=D]daoAuthenticationProvider是检验用户录入的认证数据是否正确(说白了就是用户名和密码是否正确)[/list] [list=E]inMemoryDaoImpl是给daoAuthenticationProvider提供系统的用户资料。而资料的来源是从配置中装载到内存的。[/list] [list=F]当认证不通过时,AuthenticationManager的实现类AbstractAuthenticationManager会抛出AuthenticationException类型的异常。这时排在最后的exceptionTranslationFilter会捕获该异常,并转向authenticationEntryPoint。[/list] 4.在WebRoot下创建index.jsp(其实不要也没关系,主要是为了方便),直接转向用户资料显示页。内容如下: <%@ page language="java" pageEncoding="UTF-8"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <html> <head> <META HTTP-EQUIV="Refresh" CONTENT="0;URL=userinfo.jsp"> </head> <body> <p>Loading ...</p> </body> </html> 5.在WebRoot下创建userinfo.jsp,用于显示当前登陆的用户信息。内容如下 <%@ page language="java" pageEncoding="UTF-8"%> <%@ page import="org.acegisecurity.context.SecurityContextHolder"%> <%@ page import="org.acegisecurity.userdetails.*"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>My JSP 'pass.jsp' starting page</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="This is my page"> </head> <body> 当前用户: <% Object obj = SecurityContextHolder.getContext().getAuthentication(); if (null != obj){ Object userDetail = SecurityContextHolder.getContext().getAuthentication().getPrincipal(); String username = ""; if (userDetail instanceof UserDetails) { username = ((UserDetails) userDetail).getUsername(); } else { username = userDetail.toString(); } out.print(username); out.print("<br><a href=\"j_acegi_logout\">注销</a>"); }else{ out.print("当前没有有效的用户"); out.print("<br><a href=\"acegilogin.jsp\">登陆</a>"); } %> </body> </html> 6.在WebRoot下创建acegilogin.jsp <%@ page language="java" pageEncoding="UTF-8"%> <%@ page import="org.acegisecurity.ui.AbstractProcessingFilter" %> <%@ page import="org.acegisecurity.ui.webapp.AuthenticationProcessingFilter" %> <%@ page import="org.acegisecurity.AuthenticationException" %> <html> <head> <title>Login</title> </head> <body> <h1>Login</h1> <P>Valid users: <P> <P>username <b>liuyxit</b>, password <b>123</b> (supervisor) <P>username <b>user1</b>, password <b>user1</b> (normal user) <p>username <b>user2</b>, password <b>user2</b> (user disabled) <p> <% String strError = request.getParameter("login_error"); if (null != strError){ %> <font color="red"> 你的登陆失败,请重试。<BR><BR> 原因: <%= ((AuthenticationException) session.getAttribute(AbstractProcessingFilter.ACEGI_SECURITY_LAST_EXCEPTION_KEY)).getMessage() %> </font> <% }//end if %> <form action="j_acegi_security_check" method="POST"> <table> <tr><td>User:</td><td><input type='text' name='j_username' value='<%= session.getAttribute(AuthenticationProcessingFilter.ACEGI_SECURITY_LAST_USERNAME_KEY) %>'></td></tr> <tr><td>Password:</td><td><input type='password' name='j_password'></td></tr> <tr><td><input type="checkbox" name="_acegi_security_remember_me"></td><td>2周内自动登录</td></tr> <tr><td colspan='2'><input name="submit" type="submit"></td></tr> <tr><td colspan='2'><input name="reset" type="reset"></td></tr> </table> </form> </body> </html> 7.OK,发布项目,访问http://localhost:8080/acegiexample 这时index.jsp会自动转向userinfo.jsp,由于还没有用户登录,所以没有资料显示。按登陆链接进入登录页,登录成功后会看到显示用户名的页面(当然可以有更多的用户资料,但这仅仅是example),不成功时会在登录页提示信息。我们可以用user1和user2登陆,可以分别测试登录成功和失败的流程。 8.可以看到登录页上有自动登陆功能,而userinfo.jsp页有注销功能。但还是不起作用,好,现在我们马上首手加入这两个功能。看acegi可以方便到什么程度。修改applicationContext.xml如下: <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd" default-autowire="byName" default-lazy-init="true"> <!-- ======================== FILTER CHAIN ======================= --> <bean id="filterChainProxy" class="org.acegisecurity.util.FilterChainProxy" > <property name="filterInvocationDefinitionSource" > <value > CONVERT_URL_TO_LOWERCASE_BEFORE_COMPARISON PATTERN_TYPE_APACHE_ANT /** =authenticationProcessingFilter,logoutFilter,rememberMeProcessingFilter,exceptionTranslationFilter </value> </property> </bean> <!-- ======================== 认证filter ======================= --> <!-- 表单认证处理filter --> <bean id="authenticationProcessingFilter" class="org.acegisecurity.ui.webapp.AuthenticationProcessingFilter"> <property name="authenticationManager" ref="authenticationManager"/> <property name="authenticationFailureUrl" value="/acegilogin.jsp?login_error=1"/> <property name="defaultTargetUrl" value="/userinfo.jsp"/> <property name="filterProcessesUrl" value="/j_acegi_security_check"/> </bean> <!-- 利用cookie自动登陆filter --> <bean id="rememberMeProcessingFilter" class="org.acegisecurity.ui.rememberme.RememberMeProcessingFilter"> <property name="authenticationManager" ref="authenticationManager"/> <property name="rememberMeServices" ref="rememberMeServices"/> </bean> <bean id="rememberMeServices" class="org.acegisecurity.ui.rememberme.TokenBasedRememberMeServices"> <property name="userDetailsService" ref="inMemoryDaoImpl"/> <property name="key" value="javargb"/> </bean> <bean id="rememberMeAuthenticationProvider" class="org.acegisecurity.providers.rememberme.RememberMeAuthenticationProvider"> <property name="key" value="javargb"/> </bean> <!-- 注销处理filter --> <bean id="logoutFilter" class="org.acegisecurity.ui.logout.LogoutFilter"> <constructor-arg value="/acegilogin.jsp"/> <!-- URL redirected to after logout --> <constructor-arg> <list> <ref bean="rememberMeServices"/> <bean class="org.acegisecurity.ui.logout.SecurityContextLogoutHandler"/> </list> </constructor-arg> </bean> <!-- 认证管理器 --> <bean id="authenticationManager" class="org.acegisecurity.providers.ProviderManager"> <property name="providers"><!-- 可有多个认证提供器,其中一个证通过就可以了 --> <list> <ref local="daoAuthenticationProvider"/> <ref local="rememberMeAuthenticationProvider"/> </list> </property> </bean> <bean id="daoAuthenticationProvider" class="org.acegisecurity.providers.dao.DaoAuthenticationProvider"> <property name="userDetailsService" ref="inMemoryDaoImpl"/> </bean> <!-- <bean id="inMemoryDaoImpl" class="org.acegisecurity.userdetails.memory.InMemoryDaoImpl"> <property name="userProperties"> <bean class="org.springframework.beans.factory.config.PropertiesFactoryBean"> <property name="location" value="classpath:acegi/users.properties"/> </bean> </property> </bean> --> <bean id="inMemoryDaoImpl" class="org.acegisecurity.userdetails.memory.InMemoryDaoImpl"> <property name="userMap"> <value> liuyxit=123,ROLE_SUPERVISOR user1=user1,ROLE_USER user2=user2,disabled,ROLE_USER </value> </property> </bean> <!-- 异常处理filter --> <bean id="exceptionTranslationFilter" class="org.acegisecurity.ui.ExceptionTranslationFilter"> <property name="authenticationEntryPoint"> <bean class="org.acegisecurity.ui.webapp.AuthenticationProcessingFilterEntryPoint"> <property name="loginFormUrl" value="/acegilogin.jsp"/> <property name="forceHttps" value="false"/> </bean> </property> <property name="accessDeniedHandler"> <bean class="org.acegisecurity.ui.AccessDeniedHandlerImpl"> <property name="errorPage" value="/accessDenied.jsp"/> </bean> </property> </bean> </beans> 另要注意:Acegi默认的自动登陆设定参数名为_acegi_security_remember_me,注销链接为/j_acegi_logout。 马上重启Tomcat测试看看^_^。 9.通常用户资料会放在数据库中,而不会放在配置文件,接着下面我们来再行修改一下。 首先创建要用到的用户表和权限表,并插入初始化数据: CREATE TABLE USERS( USERNAME VARCHAR( 50 ) NOT NULL PRIMARY KEY, PASSWORD VARCHAR( 50 ) NOT NULL, ENABLED BIT NOT NULL) INSERT INTO USERS(username,password,enabled) values( ' liuyxit ' , ' 123 ' , ' 1 ' ) INSERT INTO USERS(username,password,enabled) values( ' user1 ' , ' user1 ' , ' 1 ' ) INSERT INTO USERS(username,password,enabled) values( ' user2 ' , ' user2 ' , ' 0 ' ) CREATE TABLE AUTHORITIES( USERNAME VARCHAR( 50 ) NOT NULL, AUTHORITY VARCHAR( 50 ) NOT NULL, CONSTRAINT FK_AUTHORITIES_USERS FOREIGN KEY(USERNAME) REFERENCES USERS(USERNAME) ); INSERT INTO AUTHORITIES(USERNAME,AUTHORITY) values( ' liuyxit ' , ' ROLE_SUPERVISOR ' ) INSERT INTO AUTHORITIES(USERNAME,AUTHORITY) values( ' user1 ' , ' ROLE_USER ' ) INSERT INTO AUTHORITIES(USERNAME,AUTHORITY) values( ' user2 ' , ' ROLE_USER ' ) 这里我用的是acegi默认的数据结构,可以改只要你指定JdbcDaoImpl的authoritiesByUsernameQuery和usersByUsernameQuery属性就可以了。另AUTHORITIES表也要一同加入,原因acegi获得userDetail时,也会读取这个表的内容,否则会抛“nested exception is java.sql.SQLException: 对象名 'authorities' 无效”这个异常。 修改applicationContext.xml,变成如下: <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd" default-autowire="byName" default-lazy-init="true"> <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> <property name="driverClassName"> <!-- 请自行修改为对应你的数据库的驱动类 --> <value>net.sourceforge.jtds.jdbc.Driver</value> </property> <property name="url"> <!-- 请自行修改为对应你的数据库URL --> <value>jdbc:jtds:sqlserver://localhost:1433/javauser</value> </property> <property name="username"> <value>sa</value> </property> <property name="password"> <value>javauser</value> </property> </bean> <!-- ======================== FILTER CHAIN ======================= --> <bean id="filterChainProxy" class="org.acegisecurity.util.FilterChainProxy"> <property name="filterInvocationDefinitionSource"> <value> CONVERT_URL_TO_LOWERCASE_BEFORE_COMPARISON PATTERN_TYPE_APACHE_ANT /**=authenticationProcessingFilter,logoutFilter,rememberMeProcessingFilter,exceptionTranslationFilter </value> </property> </bean> <!-- ======================== 认证filter ======================= --> <!-- 表单认证处理filter --> <bean id="authenticationProcessingFilter" class="org.acegisecurity.ui.webapp.AuthenticationProcessingFilter"> <property name="authenticationManager" ref="authenticationManager"/> <property name="authenticationFailureUrl" value="/acegilogin.jsp?login_error=1"/> <property name="defaultTargetUrl" value="/userinfo.jsp"/> <property name="filterProcessesUrl" value="/j_acegi_security_check"/> </bean> <!-- 利用cookie自动登陆filter --> <bean id="rememberMeProcessingFilter" class="org.acegisecurity.ui.rememberme.RememberMeProcessingFilter"> <property name="authenticationManager" ref="authenticationManager"/> <property name="rememberMeServices" ref="rememberMeServices"/> </bean> <bean id="rememberMeServices" class="org.acegisecurity.ui.rememberme.TokenBasedRememberMeServices"> <property name="userDetailsService" ref="jdbcDaoImpl"/> <property name="key" value="javargb"/> </bean> <bean id="rememberMeAuthenticationProvider" class="org.acegisecurity.providers.rememberme.RememberMeAuthenticationProvider"> <property name="key" value="javargb"/> </bean> <!-- 注销处理filter --> <bean id="logoutFilter" class="org.acegisecurity.ui.logout.LogoutFilter"> <constructor-arg value="/acegilogin.jsp"/> <!-- URL redirected to after logout --> <constructor-arg> <list> <ref bean="rememberMeServices"/> <bean class="org.acegisecurity.ui.logout.SecurityContextLogoutHandler"/> </list> </constructor-arg> </bean> <!-- 认证管理器 --> <bean id="authenticationManager" class="org.acegisecurity.providers.ProviderManager"> <property name="providers"><!-- 可有多个认证提供器,其中一个证通过就可以了 --> <list> <ref local="daoAuthenticationProvider"/> <ref local="rememberMeAuthenticationProvider"/> </list> </property> </bean> <bean id="daoAuthenticationProvider" class="org.acegisecurity.providers.dao.DaoAuthenticationProvider"> <property name="userDetailsService" ref="jdbcDaoImpl"/> </bean> <bean id="jdbcDaoImpl" class="org.acegisecurity.userdetails.jdbc.JdbcDaoImpl"> <property name="dataSource"><ref bean="dataSource"/></property> </bean> <!-- 异常处理filter --> <bean id="exceptionTranslationFilter" class="org.acegisecurity.ui.ExceptionTranslationFilter"> <property name="authenticationEntryPoint"> <bean class="org.acegisecurity.ui.webapp.AuthenticationProcessingFilterEntryPoint"> <property name="loginFormUrl" value="/acegilogin.jsp"/> <property name="forceHttps" value="false"/> </bean> </property> <property name="accessDeniedHandler"> <bean class="org.acegisecurity.ui.AccessDeniedHandlerImpl"> <property name="errorPage" value="/accessDenied.jsp"/> </bean> </property> </bean> </beans> OK,大功告成。 后记:很少写技术文章,除了要坚持之外,文笔和思路都很重要。感觉自己的写作水平太差了,希望大家指出不合理的地方。有时间我会再写后篇《学习Acegi-授权(authorization)》,感谢大家把拙文看完,TKS! 声明:ITeye文章版权属于作者,受法律保护。没有作者书面许可不得转载。
推荐链接
|
|
返回顶楼 | |
发表时间:2007-02-07
回复坏贴中的firedragon:
firedragon 写道 请问SecurityContextHolder.getContext().getAuthentication();取到空值,可能是什么地方出了差错?
经检查必须给Spring的配置文件使用(本贴已修正) <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd" default-autowire="byName" default-lazy-init="true"> 由于一开始使用Rich Editor编辑器,加入以上XML的命名空间属性,整个贴就乱掉了,发了N次不果,最后我去掉这个命名空间,使用了BBcode模式才可以。 请robbin或相关开发人员查查是不是BUG,另我在BLOG发了好次这篇文章,都是同步发到论坛的,现发现我删除的文章仍然在BLOG的发表文章列表中。论坛上也有另一篇,但我删除掉了,请版主们帮帮手。TKS! |
|
返回顶楼 | |
发表时间:2007-03-03
good,so good!!! i like it.
|
|
返回顶楼 | |
发表时间:2007-03-03
写得还是挺不错的,我是看明白了.另外,你提供的例子只是一小部分,javaEE安全在声明性、层间透明(穿透)上面有很多文章,楼主提供的仅仅是登陆认证和编程实现,希望能看到你后续关于高级应用的文章。
|
|
返回顶楼 | |
发表时间:2007-03-13
说实话,我从中受益了.
|
|
返回顶楼 | |
发表时间:2007-03-13
把demo打包上来效果会更好
把权限放在数据库存储会更实用 |
|
返回顶楼 | |
发表时间:2007-03-13
楼主关于内部细节的问题讲的还是有点粗略,不过作为入门性文章,已经很不错了,详细的东西毕竟还有open source的document
|
|
返回顶楼 | |
发表时间:2007-03-26
learning~
|
|
返回顶楼 | |
发表时间:2007-03-30
写的很好啊,支持一下,新作期待中......
|
|
返回顶楼 | |
发表时间:2007-03-30
温柔一刀 写道 把demo打包上来效果会更好
把权限放在数据库存储会更实用 是阿,打个包更方便看了,已经收藏了,好文章 |
|
返回顶楼 | |