SSH集成shiro实现登陆

Shiro执行流程：应用程序—>Subject—>SecurityManager—>Realm—>安全数据
导入maven坐标

    
        <dependency>
            <groupId>org.apache.shirogroupId>
            <artifactId>shiro-allartifactId>
            <version>${shiro.version}version>
        dependency>

web.xml配置shiroFilter（核心控制器）时，filtername的名字不能随便定义，必须要定义为shiroFilter，而且区分大小写

    <filter>
        
        <filter-name>shiroFilterfilter-name>
        <filter-class>org.springframework.web.filter.DelegatingFilterProxyfilter-class>
    filter>
    <filter-mapping>
        <filter-name>shiroFilterfilter-name>
        <url-pattern>/*url-pattern>
    filter-mapping>

在application-shiro.xml主配置文件中，配置shiroFilter时，bean的id的名字要与web.xml中配置的核心 过滤器的filtername名称一样。

     
    <bean id="shiroFilter" 
        class="org.apache.shiro.spring.web.ShiroFilterFactoryBean">

配置安全管理器和Shiro生命周期处理器LifecycleBeanPostProcessor
/login.html后面加上*是因为会有如下情况：
http://localhost:6001/ikayakibos_management/login.html;jsessionid=68A360BFE7413C7CEAE81E5069F1EE81
/**=authc放在最后

        <property name="securityManager" ref="securityManager" />
        
        <property name="loginUrl" value="/login.html" />
        
        <property name="successUrl" value="/index.html" /> 
        
        <property name="unauthorizedUrl" value="/unauthorized.html" />

        
        <property name="filterChainDefinitions">
            <value>
                /login.html* = anon
                /css/** = anon
                /js/** = anon
                /upload/** = anon
                /images/** = anon
                /validatecode.jsp* = anon
                /services/** = anon
                /user_login.action* = anon
                /pages/base/courier.html* = perms[courier:list]
                /** = authc
            value>
        property>
    bean>

Action代码

package com.ikayaki.bos.web.action.system;

import org.apache.shiro.SecurityUtils;
import org.apache.shiro.authc.AuthenticationException;
import org.apache.shiro.authc.AuthenticationToken;
import org.apache.shiro.authc.UsernamePasswordToken;
import org.apache.shiro.subject.Subject;
import org.apache.struts2.convention.annotation.Action;
import org.apache.struts2.convention.annotation.Namespace;
import org.apache.struts2.convention.annotation.ParentPackage;
import org.apache.struts2.convention.annotation.Result;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Controller;

import com.ikayaki.bos.domain.system.User;
import com.ikayaki.bos.web.action.common.BaseAction;

@ParentPackage("json-default")
@Namespace("/")
@Controller
@Scope("prototype")
public class UserAction extends BaseAction {
    private static final long serialVersionUID = 1L;

    @Action(value = "user_login", results = { @Result(name = "success", location = "login.html", type = "redirect"),
            @Result(name = "input", location = "index.html", type = "redirect") })
    public String login() {
        //基于shiro登陆
        Subject subject = SecurityUtils.getSubject();
        //用户名和密码信息保存于token
        AuthenticationToken token = new UsernamePasswordToken(model.getUsername(),model.getPassword());
        try {
            subject.login(token);
            return SUCCESS;
        } catch (AuthenticationException e) {
            //登陆失败
            e.printStackTrace();
            return INPUT;
        }


    }
}

自定义Realm对象，实现认证方法（实际开发中，只需要继承AuthorizingRealm）

package com.ikayaki.bos.realm;

import org.apache.shiro.authc.AuthenticationException;
import org.apache.shiro.authc.AuthenticationInfo;
import org.apache.shiro.authc.AuthenticationToken;
import org.apache.shiro.authc.SimpleAuthenticationInfo;
import org.apache.shiro.authc.UsernamePasswordToken;
import org.apache.shiro.authz.AuthorizationInfo;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.subject.PrincipalCollection;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.ikayaki.bos.domain.system.User;
import com.ikayaki.bos.service.system.UserService;
//自定义realm
@Service("bosRealm")
public class BosRealm extends AuthorizingRealm{
    @Autowired
    private UserService userService;
    @Override
    //授权
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection pc) {
        return null;
    }

    @Override
    //认证
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
        //转换token
        UsernamePasswordToken usernamePasswordToken = (UsernamePasswordToken) token;
        //根据用户名查询用户信息
        User user = userService.findByUsername(usernamePasswordToken.getUsername());

        if(user ==null){
            //用户名不存在,返回null
            //参数一:期望登陆后,保存在subject中的信息
            //参数二:密码,如果返回为null,说明用户不存在
            //参数三:realm名称
            return null;
        }else{
            //用户名存在,返回密码SimpleAuthenticationInfo(user,user.getPassword(),getName())
            //返回用户密码时,securityManager自动比较返回密码用户名是否一致,不一致则报错
            return new SimpleAuthenticationInfo(user,user.getPassword(),getName());
        }
    }

}

将自定义Realm注入安全管理器SecurityManager当中

    
    <bean id="securityManager" 
        class="org.apache.shiro.web.mgt.DefaultWebSecurityManager">
        <property name="realm" ref="bosRealm" />
    bean>

service代码

package com.ikayaki.bos.service.system.impl;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import com.ikayaki.bos.dao.system.UserRepository;
import com.ikayaki.bos.domain.system.User;
import com.ikayaki.bos.service.system.UserService;
@Service
@Transactional
public class UserServiceImpl implements UserService {
    @Autowired
    private UserRepository userRepository;

    @Override
    public User findByUsername(String username) {
        return userRepository.findByUsername();
    }

}

dao代码

package com.ikayaki.bos.dao.system;

import org.springframework.data.jpa.repository.JpaRepository;

import com.ikayaki.bos.domain.system.User;

public interface UserRepository extends JpaRepository {

    User findByUsername();

}

在shiroFilter配置中将user_login.action放行

/user_login.action* = anon