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spring security

spring security 简单实例自定义登录界面

今天要讲的内容：

简单列子
自定义登录界面
数据库管理权限(系统默认)
IS_AUTHENTICATED_ANONYMOUSLY与IS_AUTHENTICATED_FULLY
login.jsp增加登录失败提示信息

一：简单列子

第一步jar包准备

第二步在web.xml中配置过滤器

<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>

第三步.配置applicationContext-security.xml

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:ss="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-2.0.xsd
                        http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security-2.0.1.xsd"
                         default-autowire="byType">

<ss:http auto-config="true">
    <ss:intercept-url pattern="/**" access="ROLE_ADMIN,ROLE_USER"/>
</ss:http>
<ss:authentication-provider>
		<ss:user-service>
			<ss:user password="admin" name="admin" authorities="ROLE_ADMIN"/>
			<ss:user password="user" name="user" authorities="ROLE_USER"/>
		</ss:user-service>
</ss:authentication-provider>
</beans>

二：自定义登录界面

第一步新建login.jsp

注意以下几点：action路径，用户名与密码，下面用红色标出来了

<form id="loginForm" name="loginForm" action="${path}/j_spring_security_check" method="post">
<input type='text' name='j_username'/>
<input type='password' name='j_password' size="16"/>

第二步修改applicationContext-security.xml

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:ss="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-2.0.xsd
                        http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security-2.0.1.xsd"
                         default-autowire="byType">

<ss:http auto-config="true">
      <ss:intercept-url pattern="/login.action" filters="none"/>
      <ss:intercept-url pattern="/**" access="ROLE_ADMIN,ROLE_USER"/>

      <ss:form-login
	login-page="/login.action"
	authentication-failure-url="/login.action?error=true"
	default-target-url="/"  <!-- default-target-url登录成功页  /代表系统默认路径 -->  
	always-use-default-target="true"      
        />
</ss:http>
<ss:authentication-provider>
		<ss:user-service>
			<ss:user password="admin" name="admin" authorities="ROLE_ADMIN"/>
			<ss:user password="user" name="user" authorities="ROLE_USER"/>
		</ss:user-service>
</ss:authentication-provider>

三：用spring security提供的默认数据库实现简单的权限控制

1.根据数据据脚本创建数据表

create table users(
    username varchar2(50) not null,
    password varchar2(50) not null,
    enabled char(1) not null
);

create table authorities (
    username varchar2(50) not null,
    authority varchar2(50) not null
);

insert into users(username,password,enabled) values('admin','admin','1');
insert into users(username,password,enabled) values('user','user','1');

insert into authorities(username,authority) values('admin','ROLE_ADMIN');
insert into authorities(username,authority) values('admin','ROLE_USER');
insert into authorities(username,authority) values('user','ROLE_USER');

2.修改applicationContext-security.xml

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:ss="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-2.0.xsd
                        http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security-2.0.1.xsd"
                         default-autowire="byType">

<ss:http auto-config="true">
      
      <ss:intercept-url pattern="/login.action" filters="none"/>
      <ss:intercept-url pattern="/**" access="ROLE_ADMIN,ROLE_USER"/>

      <ss:form-login
	login-page="/login.action"
	authentication-failure-url="/login.action?error=true"
	default-target-url="/"  <!-- default-target-url登录成功页  /代表系统默认路径 -->  
	always-use-default-target="true"      
        />
</ss:http>

<!--<ss:authentication-provider>
		<ss:user-service>
			<ss:user password="admin" name="admin" authorities="ROLE_ADMIN"/>
			<ss:user password="user" name="user" authorities="ROLE_USER"/>
		</ss:user-service>
</ss:authentication-provider>-->

<ss:authentication-provider>
		<ss:jdbc-user-service data-source-ref="dataSource"/>
</ss:authentication-provider><!--用spring security自带的表结构 USERS AUTHORITIES       dataSource是自己配置的数据源-->

</beans>

四： IS_AUTHENTICATED_ANONYMOUSLY与IS_AUTHENTICATED_FULLY

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:ss="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-2.0.xsd
                        http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security-2.0.1.xsd"
                         default-autowire="byType">

<ss:http auto-config="true">
      <ss:intercept-url pattern="/common/**" filters="none"/>
      <ss:intercept-url pattern="/css/**" filters="none"/>
      <ss:intercept-url pattern="/images/**" filters="none"/>
      <ss:intercept-url pattern="/js/**" filters="none"/>
       <!--  取消对css，js等资源的拦截-->
      <!--<ss:intercept-url pattern="/login.action" filters="none"/>-->
      <ss:intercept-url pattern="/login.action" access="IS_AUTHENTICATED_ANONYMOUSLY"/>     
      <!--login.action 不进行拦截  IS_AUTHENTICATED_ANONYMOUSLY匿名登录权限 -->

      <ss:intercept-url pattern="/company/company.action" access="ROLE_ADMIN"/>
      <ss:intercept-url pattern="/dept/dept.action" access="ROLE_USER"/>
      <!--<ss:intercept-url pattern="/**" access="ROLE_ADMIN,ROLE_USER"/>-->

    <  ss:intercept-url pattern="/**" access="IS_AUTHENTICATED_FULLY"/>
     IS_AUTHENTICATED_FULLY 只要登录了，都可以访问

      <ss:form-login
	login-page="/login.action"
	authentication-failure-url="/login.action?error=true"
	default-target-url="/"  <!-- default-target-url登录成功页  /代表系统默认路径 -->  
	always-use-default-target="true"      
        />
</ss:http>

<!--<ss:authentication-provider>
		<ss:user-service>
			<ss:user password="admin" name="admin" authorities="ROLE_ADMIN"/>
			<ss:user password="user" name="user" authorities="ROLE_USER"/>
		</ss:user-service>
</ss:authentication-provider>-->

<ss:authentication-provider>
		<ss:jdbc-user-service data-source-ref="dataSource"/>
</ss:authentication-provider><!--用spring security自带的表结构 USERS AUTHORITIES       dataSource是自己配置的数据源-->

</beans>

五：login.jsp增加登录失败提示信息

<%
		if (session.getAttribute(AbstractProcessingFilter.SPRING_SECURITY_LAST_EXCEPTION_KEY) != null) {
	%>
			<span style="color:red"> 登录失败，请重试.</span>
	<%
		}
	%>