SpringSecurity入门demo

配置依赖：

<properties>
        <spring.version>4.2.4.RELEASE</spring.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context-support</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-web</artifactId>
            <version>4.1.0.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-config</artifactId>
            <version>4.1.0.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>servlet-api</artifactId>
            <version>2.5</version>
            <scope>provided</scope>
        </dependency>
    </dependencies>
    <build>
      <plugins>        
          <!-- java编译插件 -->
          <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.2</version>
                <configuration>
                    <source>1.7</source>
                    <target>1.7</target>
                    <encoding>UTF-8</encoding>
                </configuration>
          </plugin>      
          <plugin>
                <groupId>org.apache.tomcat.maven</groupId>
                <artifactId>tomcat7-maven-plugin</artifactId>
                <configuration>
                    <!-- 指定端口 -->
                    <port>9090</port>
                    <!-- 请求路径 -->
                    <path>/</path>
                </configuration>
            </plugin>
       </plugins>  
    </build>

配置/WEB-INF/web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://java.sun.com/xml/ns/javaee"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
    version="2.5">        
       <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:spring-security.xml</param-value>
     </context-param>
     <!-- 配置监听器 -->
     <listener>
        <listener-class>
            org.springframework.web.context.ContextLoaderListener
        </listener-class>
     </listener>    
     <!-- 配置过滤器代理 -->
     <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>    
</web-app>

配置spring-security.xml

<?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: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.xsd">

    <!-- 页面拦截规则 -->
    <http use-expressions="false">
        <intercept-url pattern="/**" access="ROLE_ADMIN" />
        <!-- 开启表单登录功能 -->
        <form-login/>    
    </http>
    
    <!-- 认证管理器 -->
    <authentication-manager>
        <authentication-provider>
            <user-service>
                <user name="admin" password="123456" authorities="ROLE_USER"/>
                <user name="ztp" password="ztp" authorities="ROLE_ADMIN"/>
            </user-service>        
        </authentication-provider>    
    </authentication-manager>
</beans:beans>

任意index.html文件：略

启动

此处的登录时springSecurity内置。

自定义登录页面：

编写login.html

<form action="/login" method="post">
    <table>
        <tr>
            <td>用户名：</td>
            <td><input type="text" id="username" name="username">
        </tr>
        <tr>
            <td>密码：</td>
            <td><input type="password" id="password" name="password">
        </tr>
        <tr>
            <td colspan="2"><input type="submit" value="登录">
        </tr>
    </table>
</form>

修改spring-security.xml文件

<!-- 新规则  设置该页面不登录也能使用-->
    <http pattern="/login.html" security="none"/>
    <http pattern="/error.html" security="none"/>
    <!-- 页面拦截规则 -->
    <http use-expressions="false">
        <intercept-url pattern="/**" access="ROLE_ADMIN" />
        <!-- 开启表单登录功能  需要排除掉 /index.html-->
        <form-login login-page="/login.html" default-target-url="/index.html" authentication-failure-url="/login_error.html"/>    
    </http>
    
    <!-- 认证管理器 -->
    <authentication-manager>
        <authentication-provider>
            <user-service>
                <user name="admin" password="123456" authorities="ROLE_USER"/>
                <user name="ztp" password="ztp" authorities="ROLE_ADMIN"/>
            </user-service>        
        </authentication-provider>    
    </authentication-manager>
</beans:beans>

就能普通跳转

登陆后出现该页面：

目的预防CSRF攻击

在spring-security.cml文件中选择<http>写入<csrf disabled="true"/>主动关闭csrf预防