spring security 入门案例

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Spring Security 是一个能够为基于 Spring 的企业应用系统提供声明式的安全
访问控制解决方案的安全框架。它提供了一组可以在 Spring 应用上下文中配置
的 Bean,充分利用了 Spring IoC,DI(控制反转 Inversion of Control ,DI:Dependency 
Injection 依赖注入)和 AOP(面向切面编程)功能,为应用系统提供声明式的安
全访问控制功能,减少了为企业系统安全控制编写大量重复代码的工作。 

 

技术图片

 

1. 创建工程

2. 添加依赖

<dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>5.0.2.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-web</artifactId>
            <version>5.0.0.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-config</artifactId>
            <version>5.0.0.RELEASE</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.tomcat.maven</groupId>
                <artifactId>tomcat7-maven-plugin</artifactId>
                <configuration>
                    <path>/</path>
                    <port>8080</port>
                </configuration>
            </plugin>
        </plugins>
    </build>

 

3. 编写配置文件

<?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: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">

    <!--需要放行的资源-->
    <http pattern="/login.html" security="none"/>
    <http pattern="/login_error.html" security="none"/>

    <!--角色访问权限-->
    <http use-expressions="false">
        <!--角色可以访问的资源-->
        <intercept-url pattern="/**" access="ROLE_USER"/>
        <!--设置登录表单-->
        <form-login login-page="/login.html" default-target-url="/index.html" authentication-failure-forward-url="/login_error.html"/>
        <!--退出-->
        <logout/>
        <!--禁止跨站请求伪造校验-->
        <csrf disabled="true"/>
    </http>

    <!--加密方式 明文-->
    <beans:bean id="passwordEncoder" class="org.springframework.security.crypto.password.NoOpPasswordEncoder"/>

    <!--认证管理器-->
    <authentication-manager>
        <authentication-provider>
            <!--设置密码加密方式-->
            <password-encoder ref="passwordEncoder"/>
            <!--拥有角色的用户名和密码-->
            <user-service>
                <user name="orange" password="123456" authorities="ROLE_USER"/>
            </user-service>
        </authentication-provider>
    </authentication-manager>

</beans:beans>

 

4. 配置tomcat

<?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">
    
    <!--springSecurity监听器-->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:spring/spring-security.xml</param-value>
    </context-param>

    <!--springSecurity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>

</web-app>

 

5. 测试

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>登录页面</title>
</head>
<body>
<form action="/login" method="post">
    用户名:<input type="text" name="username"><br>
    密码:<input type="password" name="password"><br>
    <input type="submit" name="submit" value="登录">
</form>
</body>
</html>
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>spring security</title>
</head>
<body>
欢迎使用 Spring Security

<a href="/logout">退出</a>

</body>
</html>
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>登录失败</title>
</head>
<body>
密码或用户名错误
</body>
</html>

 



 


 

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