zoukankan      html  css  js  c++  java
  • Spring security工作流程及集成

    A user enters their username and password into a login screen and clicks a login button. The entered information is placed into an object called Authentication which is passed to the AuthenticationManager’s authenticate method. this method will loop through all AuthenticationProviders that are configured and calls their authenticate method, passing in the Authentication object. Each AuthenticationProvider will calls its configured UserDetailsService’s loadUserByUserName method.

    1. spring-security.xml配置文件如下所示:

    <http auto-config="true">
        <intercept-url pattern="/admin**" access="ROLE_ADMIN" />
        <intercept-url pattern="/dba**" access="ROLE_ADMIN,ROLE_DBA" />
    </http>
    
    <authentication-manager>
      <authentication-provider>
        <user-service>
        <user name="mkyong" password="123456" authorities="ROLE_USER" />
        <user name="admin" password="123456" authorities="ROLE_ADMIN" />
        <user name="dba" password="123456" authorities="ROLE_DBA" />
        </user-service>
      </authentication-provider>
    </authentication-manager>

    等同于下面的注解

    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.context.annotation.Configuration;
    import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
    import org.springframework.security.config.annotation.web.builders.HttpSecurity;
    import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
    import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
    
    @Configuration
    @EnableWebSecurity
    public class SecurityConfig extends WebSecurityConfigurerAdapter {
    
        @Autowired
        public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
          auth.inMemoryAuthentication().withUser("mkyong").password("123456").roles("USER");
          auth.inMemoryAuthentication().withUser("admin").password("123456").roles("ADMIN");
          auth.inMemoryAuthentication().withUser("dba").password("123456").roles("DBA");
        }
    
        @Override
        protected void configure(HttpSecurity http) throws Exception {
    
          http.authorizeRequests()
            .antMatchers("/admin/**").access("hasRole('ROLE_ADMIN')")
            .antMatchers("/dba/**").access("hasRole('ROLE_ADMIN') or hasRole('ROLE_DBA')")
            .and().formLogin();
    
        }
    }

    其中,@EnableWebSecurity等同于配置文件spring-security.xml

    2. web.xml集成spring-security

           <!-- Loads Spring Security config file -->
        <context-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>
                /WEB-INF/spring-security.xml
            </param-value>
        </context-param>
    
        <!-- Spring Security -->
        <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>

    相同功能的注解实现:

    import org.springframework.security.web.context.AbstractSecurityWebApplicationInitializer;
    
    public class SpringSecurityInitializer extends AbstractSecurityWebApplicationInitializer {
       //do nothing
    }

    其中,AbstractSecurityWebApplicationInitializer的实现类自动加载springSecurityFilterChain

    3. spring.xml配置文件

    <context:component-scan base-package="com.test.web.*" />
    
    <bean
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix">
            <value>/WEB-INF/pages/</value>
        </property>
        <property name="suffix">
            <value>.jsp</value>
        </property>
    </bean>

    相同功能的注解:

    import org.springframework.context.annotation.Bean;
    import org.springframework.context.annotation.ComponentScan;
    import org.springframework.context.annotation.Configuration;
    import org.springframework.context.annotation.Import;
    import org.springframework.web.servlet.config.annotation.EnableWebMvc;
    import org.springframework.web.servlet.view.InternalResourceViewResolver;
    import org.springframework.web.servlet.view.JstlView;
    
    @EnableWebMvc
    @Configuration
    @ComponentScan({ "com.test.web.*" })
    @Import({ SecurityConfig.class })
    public class AppConfig {
    
        @Bean
        public InternalResourceViewResolver viewResolver() {
            InternalResourceViewResolver viewResolver
                              = new InternalResourceViewResolver();
            viewResolver.setViewClass(JstlView.class);
            viewResolver.setPrefix("/WEB-INF/pages/");
            viewResolver.setSuffix(".jsp");
            return viewResolver;
        }
    
    }

    4. spring DispatcherServlet配置

        <!-- Spring MVC -->
        <servlet>
            <servlet-name>mvc-dispatcher</servlet-name>
            <servlet-class>org.springframework.web.servlet.DispatcherServlet
            </servlet-class>
            <load-on-startup>1</load-on-startup>
        </servlet>
        <servlet-mapping>
            <servlet-name>mvc-dispatcher</servlet-name>
            <url-pattern>/</url-pattern>
        </servlet-mapping>

    等同功能的注解

    import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;
    import com.mkyong.config.AppConfig;
    
    public class SpringMvcInitializer
           extends AbstractAnnotationConfigDispatcherServletInitializer {
    
        @Override
        protected Class<?>[] getRootConfigClasses() {
            return new Class[] { AppConfig.class };
        }
    
        @Override
        protected Class<?>[] getServletConfigClasses() {
            return null;
        }
    
        @Override
        protected String[] getServletMappings() {
            return new String[] { "/" };
        }
    
    }

    参考文献:

    【1】http://stackoverflow.com/questions/23088004/spring-security-workflow

    【2】http://www.mkyong.com/tutorials/spring-security-tutorials/

    【3】http://www.mkyong.com/spring-security/spring-security-hello-world-annotation-example/

  • 相关阅读:
    让photoshop cc 支持 webp格式
    DedeCMS文章页去img图片width和height属性
    DedeCMS提交自定义表单加入验证码功能
    php session的操作
    使用jQuery,实现完美的表单异步提交
    Windows Server 2003 IIS6.0+PHP5(FastCGI)+MySQL5环境搭建教程
    BT之下拉菜单
    慕课网上的Bootstrap学习(二)
    表单控件状态(禁用状态)
    在慕课学习Bootstrap
  • 原文地址:https://www.cnblogs.com/davidwang456/p/6509195.html
Copyright © 2011-2022 走看看