Shiro HelloWorld

1. HelloWorld案例

1.1. 依赖

<!-- shiro核心包 -->
<dependency>
    <groupId>org.apache.shiro</groupId>
    <artifactId>shiro-core</artifactId>
    <version>1.4.0</version>
</dependency>
<!-- 必须加入commons-logging，否则报错 -->
<dependency>
    <groupId>commons-logging</groupId>
    <artifactId>commons-logging</artifactId>
    <version>1.2</version>
</dependency>

1.2. log4j.properties

log4j.rootLogger=INFO, stdout

log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d %p [%c] - %m %n

# General Apache libraries
log4j.logger.org.apache=WARN

# Spring
log4j.logger.org.springframework=WARN

# Default Shiro logging
log4j.logger.org.apache.shiro=TRACE

# Disable verbose logging
log4j.logger.org.apache.shiro.util.ThreadContext=WARN
log4j.logger.org.apache.shiro.cache.ehcache.EhCache=WARN

1.3. shiro.ini

[users]
# user 'root' with password 'secret' and the 'admin' role
root = secret, admin
# user 'guest' with the password 'guest' and the 'guest' role
guest = guest, guest
# user 'presidentskroob' with password '12345' ("That's the same combination on
# my luggage!!!" ;)), and role 'president'
presidentskroob = 12345, president
# user 'darkhelmet' with password 'ludicrousspeed' and roles 'darklord' and 'schwartz'
darkhelmet = ludicrousspeed, darklord, schwartz
# user 'lonestarr' with password 'vespa' and roles 'goodguy' and 'schwartz'
lonestarr = vespa, goodguy, schwartz

# -----------------------------------------------------------------------------
# Roles with assigned permissions
# 
# Each line conforms to the format defined in the
# org.apache.shiro.realm.text.TextConfigurationRealm#setRoleDefinitions JavaDoc
# -----------------------------------------------------------------------------
[roles]
# 'admin' role has all permissions, indicated by the wildcard '*'
admin = *
# The 'schwartz' role can do anything (*) with any lightsaber:
schwartz = lightsaber:*
# The 'goodguy' role is allowed to 'delete' (action) the user (type) with
# license plate 'zhangsan' (instance specific id)
goodguy = user:delete:zhangsan

1.4. 官方HelloWorld实例

package demo.shiro;

import org.apache.shiro.SecurityUtils;
import org.apache.shiro.authc.*;
import org.apache.shiro.config.IniSecurityManagerFactory;
import org.apache.shiro.mgt.SecurityManager;
import org.apache.shiro.session.Session;
import org.apache.shiro.subject.Subject;
import org.apache.shiro.util.Factory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class Quickstart {
    private static final transient Logger log = LoggerFactory.getLogger(Quickstart.class);

    public static void main(String[] args) {
        // 通过shiro.ini，得到SecurityManager工厂类
        Factory<SecurityManager> factory = new IniSecurityManagerFactory("classpath:shiro.ini");
        // 获得SecurityManager实例
        SecurityManager securityManager = factory.getInstance();

        // 使得SecurityManager变为单例，大多应用不会这样做
        SecurityUtils.setSecurityManager(securityManager);

        // 获取当前的Subject
        Subject currentUser = SecurityUtils.getSubject();

        // ========== 测试使用Session，不需要Web或者EJB容器
        Session session = currentUser.getSession();
        session.setAttribute("someKey", "aValue");
        String value = (String) session.getAttribute("someKey");
        if (value.equals("aValue")) {
            log.info("Retrieved the correct value! [" + value + "]");
        }

        // currentUser.isAuthenticated()测试当前用户是否已经被认证，即是否已经登录
        if (!currentUser.isAuthenticated()) {
            // 传入用户名和密码，得到UsernamePasswordToken对象。这里的用户名和密码是在shiro.ini中配置的
            UsernamePasswordToken token = new UsernamePasswordToken("lonestarr", "vespa");
            token.setRememberMe(true);
            try {
                // 执行登录
                currentUser.login(token);
            } catch (UnknownAccountException uae) {
                // 如果该用户不存在，则抛出UnknownAccountException
                log.info("There is no user with username of " + token.getPrincipal());
            } catch (IncorrectCredentialsException ice) {
                // 如果密码不对，则抛出IncorrectCredentialsException
                log.info("Password for account " + token.getPrincipal() + " was incorrect!");
            } catch (LockedAccountException lae) {
                // 如果用户被锁定，则抛出LockedAccountException
                log.info("The account for username " + token.getPrincipal() + " is locked.  " +
                        "Please contact your administrator to unlock it.");
            } catch (AuthenticationException ae) {
                // AuthenticationException代表认证异常，是以上所有异常的父类

            }
        }

        log.info("User [" + currentUser.getPrincipal() + "] logged in successfully.");

        // 测试是否存在某个角色
        if (currentUser.hasRole("schwartz")) {
            log.info("May the Schwartz be with you!");
        } else {
            log.info("Hello, mere mortal.");
        }

        // 测试用户是否具有某个操作的权限
        if (currentUser.isPermitted("lightsaber:wield")) {
            log.info("You may use a lightsaber ring.  Use it wisely.");
        } else {
            log.info("Sorry, lightsaber rings are for schwartz masters only.");
        }

        //  测试用户是否具有操作某个对象的权限
        if (currentUser.isPermitted("winnebago:drive:eagle5")) {
            log.info("You are permitted to 'drive' the winnebago with license plate (id) 'eagle5'.  " +
                    "Here are the keys - have fun!");
        } else {
            log.info("Sorry, you aren't allowed to drive the 'eagle5' winnebago!");
        }

        // 退出登录
        currentUser.logout();

        System.exit(0);
    }
}