认识达内从这里开始

昆明IT培训的老师这一期给大家讲Apache Shiro系列教程的Tutorial Class文件的内容。

Final src/main/java/Tutorial.java

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 Tutorial {

private static final transient Logger log = LoggerFactory.getLogger(Tutorial.class);

public static void main(String[] args) {

#("My First Apache Shiro Application");

Factory<SecurityManager> factory = new IniSecurityManagerFactory("classpath:shiro.ini");

SecurityManager securityManager = factory.getInstance();

SecurityUtils.setSecurityManager(securityManager);

// get the currently executing user:

Subject currentUser = SecurityUtils.getSubject();

// Do some stuff with a Session (no eed for a web or EJB container!!!)

Session session = currentUser.getSession();

session.setAttribute("someKey", "aValue");

String value = (String) session.getAttribute("someKey");

if (value.equals("aValue")) {

#("Retrieved the correct value! [" + value + "]");

}

// let's login the current user so we can check against roles and permissions:

if (!currentUser.isAuthenticated()) {

UsernamePasswordToken token = new UsernamePasswordToken("lonestarr", "vespa");

token.setRememberMe(true);

try {

currentUser.login(token);

} catch (UnknownAccountException uae) {

#("There is no user with username of " + token.getPrincipal());

} catch (IncorrectCredentialsException ice) {

#("Password for account " + token.getPrincipal() + " was incorrect!");

} catch (LockedAccountException lae) {

#("The account for username " + token.getPrincipal() + " is locked. " +

"Please contact your administrator to unlock it.");

}

// ... catch more exceptions here (maybe custom ones specific to your application?

catch (AuthenticationException ae) {

//unexpected condition? error?

}

}

//say who they are:

//print their identifying principal (in this case, a username):

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

//test a role:

if (currentUser.hasRole("schwartz")) {

#("May the Schwartz be with you!");

} else {

#("Hello, mere mortal.");

}

//test a typed permission (not instance-level)

if (currentUser.isPermitted("lightsaber:weild")) {

#("You may use a lightsaber ring. Use it wisely.");

} else {

#("Sorry, lightsaber rings are for schwartz masters only.");

}

//a (very powerful) Instance Level permission:

if (currentUser.isPermitted("winnebago:drive:eagle5")) {

#("You are permitted to 'drive' the winnebago with license plate (id) 'eagle5'. " +

"Here are the keys - have fun!");

} else {

#("Sorry, you aren't allowed to drive the 'eagle5' winnebago!");

}

//all done - log out!

currentUser.logout();

System.exit(0);

}

}

昆明IT培训的老师总结一下。

希望通过本教程，你可以知道如何设置shiro，并且了解Subject和SecurityManager这两个基本概念。