Shiro认证
Shiro用户认证
- 一. 导入相关依赖
- 二. 自定义Realm
- 三. 配置spring-shiro.xml文件
- 四. 修改web.xml文件，添加shiroFilter的配置
- 五. 用户注册案例
一. 导入相关依赖
完整Pom.xml：
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.zking</groupId>
<artifactId>shiro</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<name>shiro Maven Webapp</name>
<url>http://www.example.com</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<maven-compiler-plugin.version>3.7.0</maven-compiler-plugin.version>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<maven.compiler.encoding>utf8</maven.compiler.encoding>
<mybatis-generator-maven-plugin.version>1.3.2</mybatis-generator-maven-plugin.version>
<junit.version>4.12</junit.version>
<servlet.version>4.0.0</servlet.version>
<spring.version>5.0.2.RELEASE</spring.version>
<jackson.version>2.9.3</jackson.version>
<hibernate-validator.version>6.0.7.Final</hibernate-validator.version>
<jstl.version>1.2</jstl.version>
<standard.version>1.1.2</standard.version>
<commons-fileupload.version>1.3.3</commons-fileupload.version>
<mybatis.version>3.4.5</mybatis.version>
<pagehelper.version>5.1.2</pagehelper.version>
<mybatis-spring.version>1.3.1</mybatis-spring.version>
<mybatis-ehcache.version>1.1.0</mybatis-ehcache.version>
<!--<ehcache.version>2.10.0</ehcache.version>-->
<mysql.driver.version>5.1.44</mysql.driver.version>
<commons-dbcp2.version>2.1.1</commons-dbcp2.version>
<commons-pool2.version>2.4.3</commons-pool2.version>
<slf4j.version>1.7.7</slf4j.version>
<log4j2.version>2.9.1</log4j2.version>
<disruptor.version>3.2.0</disruptor.version>
<shiro.version>1.2.5</shiro.version>
</properties>
<build>
<finalName>shiro</finalName>
<resources>
<!--解决mybatis-generator-maven-plugin运行时没有将XxxMapper.xml文件放入target文件夹的问题-->
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.xml</include>
</includes>
</resource>
<!--解决mybatis-generator-maven-plugin运行时没有将jdbc.properites文件放入target文件夹的问题-->
<resource>
<directory>src/main/resources</directory>
<includes>
<include>*.ini</include>
<include>*.properties</include>
<include>*.xml</include>
</includes>
</resource>
</resources>
<plugins>
<!-- 编码和编译和JDK版本 -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>${maven-compiler-plugin.version}</version>
<configuration>
<source>${maven.compiler.source}</source>
<target>${maven.compiler.target}</target>
<encoding>${maven.compiler.encoding}</encoding>
</configuration>
</plugin>
<plugin>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-maven-plugin</artifactId>
<version>${mybatis-generator-maven-plugin.version}</version>
<dependencies>
<!--使用Mybatis-generator插件不能使用太高版本的mysql驱动 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql.driver.version}</version>
</dependency>
</dependencies>
<configuration>
<overwrite>true</overwrite>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<!-- ********************** junit单元测试依赖 ********************** -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
<!-- ********************** Java Servlet API ********************** -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>${servlet.version}</version>
<scope>provided</scope>
</dependency>
<!-- ********************** spring依赖 ********************** -->
<!--1)spring核心依赖-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<!--spring ioc依赖 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring.version}</version>
</dependency>
<!--spring 扩展依赖 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<!--2)spring dao层依赖-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${spring.version}</version>
</dependency>
<!--3)aop相关依赖 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>${spring.version}</version>
</dependency>
<!--4)spring web相关依赖 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<!--5) spring test相关依赖 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
</dependency>
<!--6)springMVC框架-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<!--7)spring对ehcache的相关支持-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${spring.version}</version>
</dependency>
<!--8)jackson相关依赖-->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>${jackson.version}</version>
<exclusions>
<exclusion>
<artifactId>jackson-annotations</artifactId>
<groupId>com.fasterxml.jackson.core</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>${jackson.version}</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>${jackson.version}</version>
</dependency>
<!--9) JSR 303服务器验证 -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
<version>${hibernate-validator.version}</version>
</dependency>
<!--10) JSTL依赖 -->
<!-- 缺少下面的这两个jar包会报java.lang.NoClassDefFoundError: javax/servlet/jsp/jstl/core/Config -->
<!-- 原因：org.springframework.web.servlet.view.JstlView在视图解析时需要这二个jar包-->
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>${jstl.version}</version>
</dependency>
<dependency>
<groupId>taglibs</groupId>
<artifactId>standard</artifactId>
<version>${standard.version}</version>
</dependency>
<!--11) 文件上传相关依赖 -->
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>${commons-fileupload.version}</version>
</dependency>
<!-- ********************** Mybatis依赖 ********************** -->
<!--1) mybatis核心 -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>${mybatis.version}</version>
</dependency>
<!--2) Mybatis分页插件-->
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper</artifactId>
<version>${pagehelper.version}</version>
</dependency>
<!--3) spring整合mybatis与spring整合 -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>${mybatis-spring.version}</version>
</dependency>
<!--4) mybatis与ehcache整合 -->
<dependency>
<groupId>org.mybatis.caches</groupId>
<artifactId>mybatis-ehcache</artifactId>
<version>${mybatis-ehcache.version}</version>
<exclusions>
<exclusion>
<artifactId>slf4j-api</artifactId>
<groupId>org.slf4j</groupId>
</exclusion>
</exclusions>
</dependency>
<!-- ********************** ehcache依赖 ********************** -->
<!--mybatis-ehcache已导入-->
<!--<dependency>-->
<!--<groupId>net.sf.ehcache</groupId>-->
<!--<artifactId>ehcache</artifactId>-->
<!--<version>${ehcache.version}</version>-->
<!--</dependency>-->
<!-- ********************** Mysql JDBC驱动 ********************** -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql.driver.version}</version>
</dependency>
<!-- ********************** dbcp2连接池依赖 ********************** -->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-dbcp2</artifactId>
<version>${commons-dbcp2.version}</version>
<exclusions>
<exclusion>
<artifactId>commons-pool2</artifactId>
<groupId>org.apache.commons</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-pool2</artifactId>
<version>${commons-pool2.version}</version>
</dependency>
<!-- ********************** 日志配置 ********************** -->
<!--记得修改mybatis.cfg.xml添加如下内容-->
<!--<setting name="logImpl" value="SLF4J"/>-->
<!-- log配置：Slf4j+Log4j2 -->
<!--1) slf4j核心包-->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${slf4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
<version>${slf4j.version}</version>
<scope>runtime</scope>
<exclusions>
<exclusion>
<artifactId>slf4j-api</artifactId>
<groupId>org.slf4j</groupId>
</exclusion>
</exclusions>
</dependency>
<!--2) 用于与slf4j保持桥接-->
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-slf4j-impl</artifactId>
<version>${log4j2.version}</version>
<exclusions>
<exclusion>
<artifactId>slf4j-api</artifactId>
<groupId>org.slf4j</groupId>
</exclusion>
</exclusions>
</dependency>
<!--3) 核心log4j2jar包-->
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-api</artifactId>
<version>${log4j2.version}</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>${log4j2.version}</version>
</dependency>
<!--4) web工程需要包含log4j-web，非web工程不需要-->
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-web</artifactId>
<version>${log4j2.version}</version>
<scope>runtime</scope>
</dependency>
<!--5) 需要使用log4j2的AsyncLogger需要包含disruptor-->
<dependency>
<groupId>com.lmax</groupId>
<artifactId>disruptor</artifactId>
<version>${disruptor.version}</version>
</dependency>
<!-- ********************** shiro配置 ********************** -->
<dependency>
<groupId>org.apache.shiro</groupId>
<artifactId>shiro-core</artifactId>
<version>${shiro.version}</version>
<exclusions>
<exclusion>
<artifactId>slf4j-api</artifactId>
<groupId>org.slf4j</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.shiro</groupId>
<artifactId>shiro-web</artifactId>
<version>${shiro.version}</version>
</dependency>
<dependency>
<groupId>org.apache.shiro</groupId>
<artifactId>shiro-ehcache</artifactId>
<version>${shiro.version}</version>
<exclusions>
<exclusion>
<artifactId>ehcache-core</artifactId>
<groupId>net.sf.ehcache</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.shiro</groupId>
<artifactId>shiro-spring</artifactId>
<version>${shiro.version}</version>
</dependency>
<!--shiro end-->
</dependencies>
</project>
- 工具类
PasswordHelper：
package com.zking.shiro.shiros;
import org.apache.shiro.crypto.RandomNumberGenerator;
import org.apache.shiro.crypto.SecureRandomNumberGenerator;
import org.apache.shiro.crypto.hash.SimpleHash;
/**
* 用于shiro权限认证的密码工具类
*/
public class PasswordHelper {
/**
* 随机数生成器
*/
private static RandomNumberGenerator randomNumberGenerator = new SecureRandomNumberGenerator();
/**
* 指定hash算法为MD5
*/
private static final String hashAlgorithmName = "md5";
/**
* 指定散列次数为1024次，即加密1024次
*/
private static final int hashIterations = 1024;
/**
* true指定Hash散列值使用Hex加密存. false表明hash散列值用用Base64-encoded存储
*/
private static final boolean storedCredentialsHexEncoded = true;
/**
* 获得加密用的盐
*
* @return
*/
public static String createSalt() {
return randomNumberGenerator.nextBytes().toHex();
}
/**
* 获得加密后的凭证
*
* @param credentials 凭证(即密码)
* @param salt 盐
* @return
*/
public static String createCredentials(String credentials, String salt) {
SimpleHash simpleHash = new SimpleHash(hashAlgorithmName, credentials,
salt, hashIterations);
return storedCredentialsHexEncoded ? simpleHash.toHex() : simpleHash.toBase64();
}
/**
* 进行密码验证
*
* @param credentials 未加密的密码
* @param salt 盐
* @param encryptCredentials 加密后的密码
* @return
*/
public static boolean checkCredentials(String credentials, String salt, String encryptCredentials) {
return encryptCredentials.equals(createCredentials(credentials, salt));
}
public static void main(String[] args) {
String salt = createSalt();
System.out.println(salt);
System.out.println(salt.length());
//String credentials = createCredentials("888888", salt);
//System.out.println(credentials);
//System.out.println(credentials.length());
}
}
注：spring中关于shiro的配置要与工具类中的配置一致
算法+散列次数+(Hex存储|Base64-encoded存储)
二. 自定义Realm
UserRealm：
package com.zking.shiro.shiros;
import com.zking.shiro.model.User;
import com.zking.shiro.service.IUserService;
import org.apache.shiro.authc.*;
import org.apache.shiro.authc.credential.CredentialsMatcher;
import org.apache.shiro.authz.AuthorizationInfo;
import org.apache.shiro.authz.SimpleAuthorizationInfo;
import org.apache.shiro.cache.CacheManager;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.subject.PrincipalCollection;
import org.apache.shiro.util.ByteSource;
import org.springframework.beans.factory.annotation.Autowired;
import java.util.Set;
/**
* 自定义Realm
*/
public class UserRealm extends AuthorizingRealm {
private static final Integer LOCKED = new Integer(1);
//用户对应的角色信息与权限信息都保存在数据库中，通过IUserService获取数据
@Autowired
private IUserService userService;
public UserRealm() {
}
public UserRealm(CacheManager cacheManager) {
super(cacheManager);
}
public UserRealm(CredentialsMatcher matcher) {
super(matcher);
}
public UserRealm(CacheManager cacheManager, CredentialsMatcher matcher) {
super(cacheManager, matcher);
}
public void setUserService(IUserService userService) {
this.userService = userService;
}
/**
* 返回一个唯一的Realm名字
*
* @return
*/
@Override
public String getName() {
return "UserRealm";//WeixinRealm,QqRealm
}
/**
* 判断此Realm是否支持此Token
*
* @param token
* @return
*/
@Override
public boolean supports(AuthenticationToken token) {
return token instanceof UsernamePasswordToken;//仅支持UsernamePasswordToken类型的Token
}
/**
* 提供用户信息返回授权信息
*
* @param principalCollection
* @return
*/
@Override
protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
//查询用户已授予的角色及权限
String username = (String) principalCollection.getPrimaryPrincipal();
User user = new User();
user.setUsername(username);
Set<String> permissions = userService.listPermissionsByUserName(user);
Set<String> roles = userService.listRolesByUserName(user);
//返回授权信息
SimpleAuthorizationInfo authorizationInfo = new SimpleAuthorizationInfo();
authorizationInfo.setRoles(roles);//
authorizationInfo.setStringPermissions(permissions);
return authorizationInfo;
}
/**
* 提供用户信息返回认证信息(此时未进行密码比较)
*
* @param authenticationToken
* @return
* @throws AuthenticationException
*/
@Override
protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {
//查询用户已授予的角色及权限
String username = (String) authenticationToken.getPrincipal();
User user = new User();
user.setUsername(username);
User u = userService.loadByUsername(user);
if (null == u) {
throw new UnknownAccountException();//帐号不存在
}
if (LOCKED.equals(u.getLocked())) {
throw new LockedAccountException(); //帐号已锁定
}
//交给AuthenticatingRealm使用CredentialsMatcher进行密码匹配，如果觉得人家的不好可以在此判断或自定义实现
SimpleAuthenticationInfo authenticationInfo = new SimpleAuthenticationInfo(
u.getUsername(),
u.getPassword(),
ByteSource.Util.bytes(u.getSalt()),
getName()
);
return authenticationInfo;
}
}
三. 配置spring-shiro.xml文件
日常报错：
解决：
spring-shiro.xml：
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd">
<description>apache shiro配置</description>
<!-- 缓存管理器：本章使用Ehcache实现，也可以换成redis等其它缓存技术 -->
<bean id="cacheManager" class="org.apache.shiro.cache.ehcache.EhCacheManager">
<property name="cacheManagerConfigFile" value="classpath:ehcache.xml"/>
</bean>
<!-- 凭证匹配器 -->
<bean id="credentialsMatcher" class="com.hjj.shiro.shiros.RetryLimitHashedCredentialsMatcher" init-method="init">
<!--使用有参数构造方法创建对象，注入缓存管理器-->
<constructor-arg ref="cacheManager"/>
<!--指定缓存对象的名字-->
<property name="cacheName" value="passwordRetryCache"/>
<!--注意：重要的事情说三次~~~~~~此处加密方式要与用户注册时的算法一致 -->
<!--注意：重要的事情说三次~~~~~~此处加密方式要与用户注册时的算法一致 -->
<!--注意：重要的事情说三次~~~~~~此处加密方式要与用户注册时的算法一致 -->
<!--以下三个配置告诉shiro将如何对用户传来的明文密码进行加密-->
<!--指定hash算法为MD5-->
<property name="hashAlgorithmName" value="md5"/>
<!--指定散列次数为1024次-->
<property name="hashIterations" value="1024"/>
<!--true指定Hash散列值使用Hex加密存. false表明hash散列值用用Base64-encoded存储-->
<property name="storedCredentialsHexEncoded" value="true"/>
</bean>
<!-- Realm实现 -->
<bean id="userRealm" class="com.hjj.shiro.shiros.UserRealm">
<property name="userService" ref="IUserService"/>
<property name="credentialsMatcher" ref="credentialsMatcher"/>
</bean>
<!-- 安全管理器 -->
<bean id="securityManager" class="org.apache.shiro.web.mgt.DefaultWebSecurityManager">
<property name="realm" ref="userRealm"/>
</bean>
<!-- Shiro的Web过滤器 -->
<bean id="shiroFilter" class="org.apache.shiro.spring.web.ShiroFilterFactoryBean">
<property name="securityManager" ref="securityManager"/>
<!--访问需要认证的地址时，没有认证跳转的地址，默认跳网站首页，然后经springmvc转到/WEB-INF/jsp/login.jsp-->
<property name="loginUrl" value="/"/>
<!-- 登录后，没有访问权限将跳转的地址 -->
<property name="unauthorizedUrl" value="/user/unauthorized"/>
<property name="filterChainDefinitions">
<!-- **表示匹配0个或多个路径 ,*表示匹配0个或多个字符串，?表示匹配一个字符 -->
<value>
/css/** = anon
/images/** = anon
/js/** = anon
/ = anon
/user/logout = logout
/user/** = anon
/userInfo/** = authc
/dict/** = authc
/console/** = roles[admin]
/sys/** = authc
/** = anon
</value>
</property>
</bean>
<!-- Shiro生命周期处理器-->
<bean id="lifecycleBeanPostProcessor" class="org.apache.shiro.spring.LifecycleBeanPostProcessor"/>
</beans>
四. 修改web.xml文件，添加shiroFilter的配置
注：使用的代理类DelegatingFilterProxy
web.xml:
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
version="3.1">
<display-name>Archetype Created Web Application</display-name>
<!--1. Spring和web项目集成 -->
<context-param>
<!--1) spring上下文配置文件 -->
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring.xml</param-value>
</context-param>
<listener>
<!--2) 读取Spring上下文的监听器 -->
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<listener>
<!--3) 防止Spring内存溢出监听器 -->
<listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
</listener>
<!--2. 中文乱码处理 -->
<filter>
<filter-name>EncodingFiter</filter-name>
<filter-class>com.zking.shiro.util.EncodingFiter</filter-class>
<!--web.xml 3.0的新特性，是否支持异步-->
<async-supported>true</async-supported>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>EncodingFiter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!--3. SpringMVC中央控制器 -->
<servlet>
<servlet-name>SpringMVC</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring-mvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
<!--web.xml 3.0的新特性，是否支持异步-->
<async-supported>true</async-supported>
</servlet>
<servlet-mapping>
<servlet-name>SpringMVC</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!--4. shiro配置开始 -->
<filter>
<filter-name>shiroFilter</filter-name>
<!--DelegatingFilterProxy作用是自动到spring容器查找名为shiroFilter（filter-name）的bean并把所有Filter的操作委托给它-->
<filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
<async-supported>true</async-supported>
<init-param>
<param-name>targetFilterLifecycle</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>shiroFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- shiro配置 结束 -->
<welcome-file-list>
<welcome-file>/user/index.shtml</welcome-file>
</welcome-file-list>
</web-app>
五. 用户注册案例
md5+盐生成新的凭证
保存新凭证+盐到数据
7. 用户登陆
UsernamePasswordToken token = new UsernamePasswordToken(username,password);
Subject subject = SecurityUtils.getSubject();
subject.login(token);//PhoneToken
UnknownAccountException
LockedAccountException
IncorrectCredentialsException:捕获密码错误异常
ExcessiveAttemptsException:捕获错误登录过多的异常
登陆成功后将user保存至shiro的会话中，已备之后使用