springmvc+shiro+maven 实现登录与权限授权

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       Shiro Shiro 是一个 Apache 下的一开源项目项目,旨在简化身份验证和授权。

 1:shiro的配置,通过maven加入shiro相关jar包

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  1. <!– shiro –>    
  2.     <dependency>    
  3.         <groupId>org.apache.shiro</groupId>    
  4.         <artifactId>shiro-core</artifactId>    
  5.         <version>1.2.1</version>    
  6.     </dependency>    
  7.     <dependency>    
  8.         <groupId>org.apache.shiro</groupId>    
  9.         <artifactId>shiro-web</artifactId>    
  10.         <version>1.2.1</version>    
  11.     </dependency>    
  12.     <dependency>    
  13.         <groupId>org.apache.shiro</groupId>    
  14.         <artifactId>shiro-ehcache</artifactId>    
  15.         <version>1.2.1</version>    
  16.     </dependency>    
  17.     <dependency>    
  18.         <groupId>org.apache.shiro</groupId>    
  19.         <artifactId>shiro-spring</artifactId>    
  20.         <version>1.2.1</version>    
  21.     </dependency>    
<!-- shiro -->      <dependency>          <groupId>org.apache.shiro</groupId>          <artifactId>shiro-core</artifactId>          <version>1.2.1</version>      </dependency>      <dependency>          <groupId>org.apache.shiro</groupId>          <artifactId>shiro-web</artifactId>          <version>1.2.1</version>      </dependency>      <dependency>          <groupId>org.apache.shiro</groupId>          <artifactId>shiro-ehcache</artifactId>          <version>1.2.1</version>      </dependency>      <dependency>          <groupId>org.apache.shiro</groupId>          <artifactId>shiro-spring</artifactId>          <version>1.2.1</version>      </dependency>  

2 :在web.xml中添加shiro过滤器

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  1. <!– 配置shiro的核心拦截器 –>    
  2.    <filter>    
  3.         <filter-name>shiroFilter</filter-name>    
  4.         <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>    
  5.     </filter>    
  6.     <filter-mapping>    
  7.         <filter-name>shiroFilter</filter-name>    
  8.         <url-pattern>/admin/*</url-pattern>    
  9.     </filter-mapping>    
<!-- 配置shiro的核心拦截器 -->     <filter>          <filter-name>shiroFilter</filter-name>          <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>      </filter>      <filter-mapping>          <filter-name>shiroFilter</filter-name>          <url-pattern>/admin/*</url-pattern>      </filter-mapping>  

3: springmvc中对shiro配置

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  1. <beans xmlns=“http://www.springframework.org/schema/beans”    
  2.     xmlns:xsi=”http://www.w3.org/2001/XMLSchema-instance” xmlns:mvc=“http://www.springframework.org/schema/mvc”    
  3.     xmlns:context=”http://www.springframework.org/schema/context”    
  4.     xmlns:aop=”http://www.springframework.org/schema/aop” xmlns:tx=“http://www.springframework.org/schema/tx”    
  5.     xsi:schemaLocation=”http://www.springframework.org/schema/beans     
  6.         http://www.springframework.org/schema/beans/spring-beans-3.2.xsd     
  7.         http://www.springframework.org/schema/mvc     
  8.         http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd     
  9.         http://www.springframework.org/schema/context     
  10.         http://www.springframework.org/schema/context/spring-context-3.2.xsd     
  11.         http://www.springframework.org/schema/aop     
  12.         http://www.springframework.org/schema/aop/spring-aop-3.2.xsd     
  13.         http://www.springframework.org/schema/tx     
  14.         http://www.springframework.org/schema/tx/spring-tx-3.2.xsd ”>    
  15.     
  16.     <!– web.xml中shiro的filter对应的bean –>    
  17.     <bean id=”shiroFilter” class=“org.apache.shiro.spring.web.ShiroFilterFactoryBean”>    
  18.         <!– 管理器,必须设置 –>    
  19.         <property name=”securityManager” ref=“securityManager” />    
  20.         <!– 拦截到,跳转到的地址,通过此地址去认证 –>    
  21.         <property name=”loginUrl” value=“/admin/login.do” />    
  22.         <!– 认证成功统一跳转到/admin/index.do,建议不配置,shiro认证成功自动到上一个请求路径 –>    
  23.         <property name=”successUrl” value=“/admin/index.do” />    
  24.         <!– 通过unauthorizedUrl指定没有权限操作时跳转页面 –>    
  25.         <property name=”unauthorizedUrl” value=“/refuse.jsp” />    
  26.         <!– 自定义filter,可用来更改默认的表单名称配置 –>    
  27.         <property name=”filters”>    
  28.             <map>    
  29.                 <!– 将自定义 的FormAuthenticationFilter注入shiroFilter中 –>    
  30.                 <entry key=”authc” value-ref=“formAuthenticationFilter” />    
  31.             </map>    
  32.         </property>    
  33.         <property name=”filterChainDefinitions”>    
  34.             <value>    
  35.                 <!– 对静态资源设置匿名访问 –>    
  36.                 /images/** = anon    
  37.                 /js/** = anon    
  38.                 /styles/** = anon    
  39.                 <!– 验证码,可匿名访问 –>    
  40.                 /validatecode.jsp = anon    
  41.                 <!– 请求 logout.do地址,shiro去清除session –>    
  42.                 /admin/logout.do = logout    
  43.                 <!–商品查询需要商品查询权限 ,取消url拦截配置,使用注解授权方式 –>    
  44.                 <!– /items/queryItems.action = perms[item:query] /items/editItems.action     
  45.                     = perms[item:edit] –>    
  46.                 <!– 配置记住我或认证通过可以访问的地址 –>    
  47.                 /welcome.jsp = user    
  48.                 /admin/index.do = user    
  49.                 <!– /** = authc 所有url都必须认证通过才可以访问 –>    
  50.                 /** = authc    
  51.             </value>    
  52.         </property>    
  53.     </bean>    
  54.     
  55.     <!– securityManager安全管理器 –>    
  56.     <bean id=”securityManager” class=“org.apache.shiro.web.mgt.DefaultWebSecurityManager”>    
  57.         <property name=”realm” ref=“customRealm” />    
  58.         <!– 注入缓存管理器 –>    
  59.         <property name=”cacheManager” ref=“cacheManager” />    
  60.         <!– 注入session管理器 –>    
  61.         <!– <property name=”sessionManager” ref=“sessionManager” /> –>    
  62.         <!– 记住我 –>    
  63.         <property name=”rememberMeManager” ref=“rememberMeManager” />    
  64.     </bean>    
  65.     
  66.     <!– 自定义realm –>    
  67.     <bean id=”customRealm” class=“com.zhijianj.stucheck.shiro.CustomRealm”>    
  68.         <!– 将凭证匹配器设置到realm中,realm按照凭证匹配器的要求进行散列 –>    
  69.         <!– <property name=”credentialsMatcher” ref=“credentialsMatcher” /> –>    
  70.     </bean>    
  71.     
  72.     <!– 凭证匹配器 –>    
  73.     <bean id=”credentialsMatcher”    
  74.         class=“org.apache.shiro.authc.credential.HashedCredentialsMatcher”>    
  75.         <!– 选用MD5散列算法 –>    
  76.         <property name=”hashAlgorithmName” value=“md5” />    
  77.         <!– 进行一次加密 –>    
  78.         <property name=”hashIterations” value=“1” />    
  79.     </bean>    
  80.     
  81.     <!– 自定义form认证过虑器 –>    
  82.     <!– 基于Form表单的身份验证过滤器,不配置将也会注册此过虑器,表单中的用户账号、密码及loginurl将采用默认值,建议配置 –>    
  83.     <!– 可通过此配置,判断验证码 –>    
  84.     <bean id=”formAuthenticationFilter”    
  85.         class=“com.zhijianj.stucheck.shiro.CustomFormAuthenticationFilter ”>    
  86.         <!– 表单中账号的input名称,默认为username –>    
  87.         <property name=”usernameParam” value=“username” />    
  88.         <!– 表单中密码的input名称,默认为password –>    
  89.         <property name=”passwordParam” value=“password” />    
  90.         <!– 记住我input的名称,默认为rememberMe –>    
  91.         <property name=”rememberMeParam” value=“rememberMe” />    
  92.     </bean>    
  93.     <!– 会话管理器 –>    
  94.     <bean id=”sessionManager”    
  95.         class=“org.apache.shiro.web.session.mgt.DefaultWebSessionManager”>    
  96.         <!– session的失效时长,单位毫秒 –>    
  97.         <property name=”globalSessionTimeout” value=“600000” />    
  98.         <!– 删除失效的session –>    
  99.         <property name=”deleteInvalidSessions” value=“true” />    
  100.     </bean>    
  101.     <!– 缓存管理器 –>    
  102.     <bean id=”cacheManager” class=“org.apache.shiro.cache.ehcache.EhCacheManager”>    
  103.         <property name=”cacheManagerConfigFile” value=“classpath:shiro-ehcache.xml” />    
  104.     </bean>    
  105.     <!– rememberMeManager管理器,写cookie,取出cookie生成用户信息 –>    
  106.     <bean id=”rememberMeManager” class=“org.apache.shiro.web.mgt.CookieRememberMeManager”>    
  107.         <property name=”cookie” ref=“rememberMeCookie” />    
  108.     </bean>    
  109.     <!– 记住我cookie –>    
  110.     <bean id=”rememberMeCookie” class=“org.apache.shiro.web.servlet.SimpleCookie”>    
  111.         <!– rememberMe是cookie的名字 –>    
  112.         <constructor-arg value=”rememberMe” />    
  113.         <!– 记住我cookie生效时间30天 –>    
  114.         <property name=”maxAge” value=“2592000” />    
  115.     </bean>    
  116. </beans>    
<beans xmlns="http://www.springframework.org/schema/beans"      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"      xmlns:context="http://www.springframework.org/schema/context"      xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"      xsi:schemaLocation="http://www.springframework.org/schema/beans           http://www.springframework.org/schema/beans/spring-beans-3.2.xsd           http://www.springframework.org/schema/mvc           http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd           http://www.springframework.org/schema/context           http://www.springframework.org/schema/context/spring-context-3.2.xsd           http://www.springframework.org/schema/aop           http://www.springframework.org/schema/aop/spring-aop-3.2.xsd           http://www.springframework.org/schema/tx           http://www.springframework.org/schema/tx/spring-tx-3.2.xsd ">      <!-- web.xml中shiro的filter对应的bean -->      <bean id="shiroFilter" class="org.apache.shiro.spring.web.ShiroFilterFactoryBean">          <!-- 管理器,必须设置 -->          <property name="securityManager" ref="securityManager" />          <!-- 拦截到,跳转到的地址,通过此地址去认证 -->          <property name="loginUrl" value="/admin/login.do" />          <!-- 认证成功统一跳转到/admin/index.do,建议不配置,shiro认证成功自动到上一个请求路径 -->          <property name="successUrl" value="/admin/index.do" />          <!-- 通过unauthorizedUrl指定没有权限操作时跳转页面 -->          <property name="unauthorizedUrl" value="/refuse.jsp" />          <!-- 自定义filter,可用来更改默认的表单名称配置 -->          <property name="filters">              <map>                  <!-- 将自定义 的FormAuthenticationFilter注入shiroFilter中 -->                  <entry key="authc" value-ref="formAuthenticationFilter" />              </map>          </property>          <property name="filterChainDefinitions">              <value>                  <!-- 对静态资源设置匿名访问 -->                  /images/** = anon                  /js/** = anon                  /styles/** = anon                  <!-- 验证码,可匿名访问 -->                  /validatecode.jsp = anon                  <!-- 请求 logout.do地址,shiro去清除session -->                  /admin/logout.do = logout                  <!--商品查询需要商品查询权限 ,取消url拦截配置,使用注解授权方式 -->                  <!-- /items/queryItems.action = perms[item:query] /items/editItems.action                       = perms[item:edit] -->                  <!-- 配置记住我或认证通过可以访问的地址 -->                  /welcome.jsp = user                  /admin/index.do = user                  <!-- /** = authc 所有url都必须认证通过才可以访问 -->                  /** = authc              </value>          </property>      </bean>      <!-- securityManager安全管理器 -->      <bean id="securityManager" class="org.apache.shiro.web.mgt.DefaultWebSecurityManager">          <property name="realm" ref="customRealm" />          <!-- 注入缓存管理器 -->          <property name="cacheManager" ref="cacheManager" />          <!-- 注入session管理器 -->          <!-- <property name="sessionManager" ref="sessionManager" /> -->          <!-- 记住我 -->          <property name="rememberMeManager" ref="rememberMeManager" />      </bean>      <!-- 自定义realm -->      <bean id="customRealm" class="com.zhijianj.stucheck.shiro.CustomRealm">          <!-- 将凭证匹配器设置到realm中,realm按照凭证匹配器的要求进行散列 -->          <!-- <property name="credentialsMatcher" ref="credentialsMatcher" /> -->      </bean>      <!-- 凭证匹配器 -->      <bean id="credentialsMatcher"          class="org.apache.shiro.authc.credential.HashedCredentialsMatcher">          <!-- 选用MD5散列算法 -->          <property name="hashAlgorithmName" value="md5" />          <!-- 进行一次加密 -->          <property name="hashIterations" value="1" />      </bean>      <!-- 自定义form认证过虑器 -->      <!-- 基于Form表单的身份验证过滤器,不配置将也会注册此过虑器,表单中的用户账号、密码及loginurl将采用默认值,建议配置 -->      <!-- 可通过此配置,判断验证码 -->      <bean id="formAuthenticationFilter"          class="com.zhijianj.stucheck.shiro.CustomFormAuthenticationFilter ">          <!-- 表单中账号的input名称,默认为username -->          <property name="usernameParam" value="username" />          <!-- 表单中密码的input名称,默认为password -->          <property name="passwordParam" value="password" />          <!-- 记住我input的名称,默认为rememberMe -->          <property name="rememberMeParam" value="rememberMe" />      </bean>      <!-- 会话管理器 -->      <bean id="sessionManager"          class="org.apache.shiro.web.session.mgt.DefaultWebSessionManager">          <!-- session的失效时长,单位毫秒 -->          <property name="globalSessionTimeout" value="600000" />          <!-- 删除失效的session -->          <property name="deleteInvalidSessions" value="true" />      </bean>      <!-- 缓存管理器 -->      <bean id="cacheManager" class="org.apache.shiro.cache.ehcache.EhCacheManager">          <property name="cacheManagerConfigFile" value="classpath:shiro-ehcache.xml" />      </bean>      <!-- rememberMeManager管理器,写cookie,取出cookie生成用户信息 -->      <bean id="rememberMeManager" class="org.apache.shiro.web.mgt.CookieRememberMeManager">          <property name="cookie" ref="rememberMeCookie" />      </bean>      <!-- 记住我cookie -->      <bean id="rememberMeCookie" class="org.apache.shiro.web.servlet.SimpleCookie">          <!-- rememberMe是cookie的名字 -->          <constructor-arg value="rememberMe" />          <!-- 记住我cookie生效时间30天 -->          <property name="maxAge" value="2592000" />      </bean>  </beans>  

4 :自定义Realm编码

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  1. public class CustomRealm extends AuthorizingRealm {    
  2.     // 设置realm的名称    
  3.     @Override    
  4.     public void setName(String name) {    
  5.         super.setName(“customRealm”);    
  6.     }    
  7.     
  8.     @Autowired    
  9.     private AdminUserService adminUserService;    
  10.     
  11.     /**  
  12.      * 认证  
  13.      */    
  14.     @Override    
  15.     protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {    
  16.     
  17.         // token中包含用户输入的用户名和密码    
  18.         // 第一步从token中取出用户名    
  19.         String userName = (String) token.getPrincipal();    
  20.         // 第二步:根据用户输入的userCode从数据库查询    
  21.         TAdminUser adminUser = adminUserService.getAdminUserByUserName(userName);    
  22.         // 如果查询不到返回null    
  23.         if (adminUser == null) {//    
  24.             return null;    
  25.         }    
  26.         // 获取数据库中的密码    
  27.         String password = adminUser.getPassword();    
  28.         /**  
  29.          * 认证的用户,正确的密码  
  30.          */    
  31.         AuthenticationInfo authcInfo = new SimpleAuthenticationInfo(adminUser, password, this.getName());    
  32.                //MD5 加密+加盐+多次加密    
  33. //<span style=”color:#ff0000;”>SimpleAuthenticationInfo authcInfo = new SimpleAuthenticationInfo(adminUser, password,ByteSource.Util.bytes(salt), this.getName());</span>    
  34.         return authcInfo;    
  35.     }    
  36.     
  37.     /**  
  38.      * 授权,只有成功通过<span style=”font-family: Arial, Helvetica, sans-serif;”>doGetAuthenticationInfo方法的认证后才会执行。</span>  
  39.      */    
  40.     @Override    
  41.     protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {    
  42.         // 从 principals获取主身份信息    
  43.         // 将getPrimaryPrincipal方法返回值转为真实身份类型(在上边的doGetAuthenticationInfo认证通过填充到SimpleAuthenticationInfo中身份类型),    
  44.         TAdminUser activeUser = (TAdminUser) principals.getPrimaryPrincipal();    
  45.         // 根据身份信息获取权限信息    
  46.         // 从数据库获取到权限数据    
  47.         TAdminRole adminRoles = adminUserService.getAdminRoles(activeUser);    
  48.         // 单独定一个集合对象    
  49.         List<String> permissions = new ArrayList<String>();    
  50.         if (adminRoles != null) {    
  51.             permissions.add(adminRoles.getRoleKey());    
  52.         }    
  53.         // 查到权限数据,返回授权信息(要包括 上边的permissions)    
  54.         SimpleAuthorizationInfo simpleAuthorizationInfo = new SimpleAuthorizationInfo();    
  55.         // 将上边查询到授权信息填充到simpleAuthorizationInfo对象中    
  56.         simpleAuthorizationInfo.addStringPermissions(permissions);    
  57.         return simpleAuthorizationInfo;    
  58.     }    
  59.     
  60.     // 清除缓存    
  61.     public void clearCached() {    
  62.         PrincipalCollection principals = SecurityUtils.getSubject().getPrincipals();    
  63.         super.clearCache(principals);    
  64.     }    
  65. }    
public class CustomRealm extends AuthorizingRealm {      // 设置realm的名称      @Override      public void setName(String name) {          super.setName("customRealm");      }      @Autowired      private AdminUserService adminUserService;      /**      * 认证      */      @Override      protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {          // token中包含用户输入的用户名和密码          // 第一步从token中取出用户名          String userName = (String) token.getPrincipal();          // 第二步:根据用户输入的userCode从数据库查询          TAdminUser adminUser = adminUserService.getAdminUserByUserName(userName);          // 如果查询不到返回null          if (adminUser == null) {//              return null;          }          // 获取数据库中的密码          String password = adminUser.getPassword();          /**          * 认证的用户,正确的密码          */          AuthenticationInfo authcInfo = new SimpleAuthenticationInfo(adminUser, password, this.getName());                 //MD5 加密+加盐+多次加密  //<span style="color:#ff0000;">SimpleAuthenticationInfo authcInfo = new SimpleAuthenticationInfo(adminUser, password,ByteSource.Util.bytes(salt), this.getName());</span>          return authcInfo;      }      /**      * 授权,只有成功通过<span style="font-family: Arial, Helvetica, sans-serif;">doGetAuthenticationInfo方法的认证后才会执行。</span>      */      @Override      protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {          // 从 principals获取主身份信息          // 将getPrimaryPrincipal方法返回值转为真实身份类型(在上边的doGetAuthenticationInfo认证通过填充到SimpleAuthenticationInfo中身份类型),          TAdminUser activeUser = (TAdminUser) principals.getPrimaryPrincipal();          // 根据身份信息获取权限信息          // 从数据库获取到权限数据          TAdminRole adminRoles = adminUserService.getAdminRoles(activeUser);          // 单独定一个集合对象          List<String> permissions = new ArrayList<String>();          if (adminRoles != null) {              permissions.add(adminRoles.getRoleKey());          }          // 查到权限数据,返回授权信息(要包括 上边的permissions)          SimpleAuthorizationInfo simpleAuthorizationInfo = new SimpleAuthorizationInfo();          // 将上边查询到授权信息填充到simpleAuthorizationInfo对象中          simpleAuthorizationInfo.addStringPermissions(permissions);          return simpleAuthorizationInfo;      }      // 清除缓存      public void clearCached() {          PrincipalCollection principals = SecurityUtils.getSubject().getPrincipals();          super.clearCache(principals);      }  }  

5 缓存配置

ehcache.xml代码如下:

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  1. <ehcache updateCheck=“false” name=“shiroCache”>    
  2.     <defaultCache    
  3.             maxElementsInMemory=”10000”    
  4.             eternal=”false”    
  5.             timeToIdleSeconds=”120”    
  6.             timeToLiveSeconds=”120”    
  7.             overflowToDisk=”false”    
  8.             diskPersistent=”false”    
  9.             diskExpiryThreadIntervalSeconds=”120”    
  10.             />    
  11. </ehcache>   
<ehcache updateCheck="false" name="shiroCache">      <defaultCache              maxElementsInMemory="10000"              eternal="false"              timeToIdleSeconds="120"              timeToLiveSeconds="120"              overflowToDisk="false"              diskPersistent="false"              diskExpiryThreadIntervalSeconds="120"              />  </ehcache> 
通过使用ehache中就避免第次都向服务器发送权限授权(doGetAuthorizationInfo)的请求。

6.自定义表单编码过滤器

CustomFormAuthenticationFilter代码,认证之前调用,可用于验证码校验

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  1. public class CustomFormAuthenticationFilter extends FormAuthenticationFilter {    
  2.     // 原FormAuthenticationFilter的认证方法    
  3.     @Override    
  4.     protected boolean onAccessDenied(ServletRequest request, ServletResponse response) throws Exception {    
  5.         // 在这里进行验证码的校验    
  6.     
  7.         // 从session获取正确验证码    
  8.         HttpServletRequest httpServletRequest = (HttpServletRequest) request;    
  9.         HttpSession session = httpServletRequest.getSession();    
  10.         // 取出session的验证码(正确的验证码)    
  11.         String validateCode = (String) session.getAttribute(”validateCode”);    
  12.     
  13.         // 取出页面的验证码    
  14.         // 输入的验证和session中的验证进行对比    
  15.         String randomcode = httpServletRequest.getParameter(”randomcode”);    
  16.         if (randomcode != null && validateCode != null && !randomcode.equals(validateCode)) {    
  17.             // 如果校验失败,将验证码错误失败信息,通过shiroLoginFailure设置到request中    
  18.             httpServletRequest.setAttribute(”shiroLoginFailure”“randomCodeError”);    
  19.             // 拒绝访问,不再校验账号和密码    
  20.             return true;    
  21.         }    
  22.         return super.onAccessDenied(request, response);    
  23.     }    
  24. }    
public class CustomFormAuthenticationFilter extends FormAuthenticationFilter {      // 原FormAuthenticationFilter的认证方法      @Override      protected boolean onAccessDenied(ServletRequest request, ServletResponse response) throws Exception {          // 在这里进行验证码的校验          // 从session获取正确验证码          HttpServletRequest httpServletRequest = (HttpServletRequest) request;          HttpSession session = httpServletRequest.getSession();          // 取出session的验证码(正确的验证码)          String validateCode = (String) session.getAttribute("validateCode");          // 取出页面的验证码          // 输入的验证和session中的验证进行对比          String randomcode = httpServletRequest.getParameter("randomcode");          if (randomcode != null && validateCode != null && !randomcode.equals(validateCode)) {              // 如果校验失败,将验证码错误失败信息,通过shiroLoginFailure设置到request中              httpServletRequest.setAttribute("shiroLoginFailure", "randomCodeError");              // 拒绝访问,不再校验账号和密码              return true;          }          return super.onAccessDenied(request, response);      }  }  

在此符上验证码jsp界面的代码  validatecode.jsp

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  1. <%@ page language=“java” contentType=“text/html; charset=UTF-8”    
  2.     pageEncoding=“UTF-8”%>    
  3. <%@ page import=“java.util.Random”%>    
  4. <%@ page import=“java.io.OutputStream”%>    
  5. <%@ page import=“java.awt.Color”%>    
  6. <%@ page import=“java.awt.Font”%>    
  7. <%@ page import=“java.awt.Graphics”%>    
  8. <%@ page import=“java.awt.image.BufferedImage”%>    
  9. <%@ page import=“javax.imageio.ImageIO”%>    
  10. <%    
  11.     int width = 60;    
  12.     int height = 32;    
  13.     //create the image    
  14.     BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);    
  15.     Graphics g = image.getGraphics();    
  16.     // set the background color    
  17.     g.setColor(new Color(0xDCDCDC));    
  18.     g.fillRect(0, 0, width, height);    
  19.     // draw the border    
  20.     g.setColor(Color.black);    
  21.     g.drawRect(0, 0, width - 1, height - 1);    
  22.     // create a random instance to generate the codes    
  23.     Random rdm = new Random();    
  24.     String hash1 = Integer.toHexString(rdm.nextInt());    
  25.     // make some confusion    
  26.     for (int i = 0; i < 50; i++) {    
  27.         int x = rdm.nextInt(width);    
  28.         int y = rdm.nextInt(height);    
  29.         g.drawOval(x, y, 0, 0);    
  30.     }    
  31.     // generate a random code    
  32.     String capstr = hash1.substring(0, 4);    
  33.     //将生成的验证码存入session    
  34.     session.setAttribute(“validateCode”, capstr);    
  35.     g.setColor(new Color(0, 100, 0));    
  36.     g.setFont(new Font(“Candara”, Font.BOLD, 24));    
  37.     g.drawString(capstr, 8, 24);    
  38.     g.dispose();    
  39.     //输出图片    
  40.     response.setContentType(“image/jpeg”);    
  41.     out.clear();    
  42.     out = pageContext.pushBody();    
  43.     OutputStream strm = response.getOutputStream();    
  44.     ImageIO.write(image, “jpeg”, strm);    
  45.     strm.close();    
  46. %>    
<%@ page language="java" contentType="text/html; charset=UTF-8"      pageEncoding="UTF-8"%>  <%@ page import="java.util.Random"%>  <%@ page import="java.io.OutputStream"%>  <%@ page import="java.awt.Color"%>  <%@ page import="java.awt.Font"%>  <%@ page import="java.awt.Graphics"%>  <%@ page import="java.awt.image.BufferedImage"%>  <%@ page import="javax.imageio.ImageIO"%>  <%      int width = 60;      int height = 32;      //create the image      BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);      Graphics g = image.getGraphics();      // set the background color      g.setColor(new Color(0xDCDCDC));      g.fillRect(0, 0, width, height);      // draw the border      g.setColor(Color.black);      g.drawRect(0, 0, width - 1, height - 1);      // create a random instance to generate the codes      Random rdm = new Random();      String hash1 = Integer.toHexString(rdm.nextInt());      // make some confusion      for (int i = 0; i < 50; i++) {          int x = rdm.nextInt(width);          int y = rdm.nextInt(height);          g.drawOval(x, y, 0, 0);      }      // generate a random code      String capstr = hash1.substring(0, 4);      //将生成的验证码存入session      session.setAttribute("validateCode", capstr);      g.setColor(new Color(0, 100, 0));      g.setFont(new Font("Candara", Font.BOLD, 24));      g.drawString(capstr, 8, 24);      g.dispose();      //输出图片      response.setContentType("image/jpeg");      out.clear();      out = pageContext.pushBody();      OutputStream strm = response.getOutputStream();      ImageIO.write(image, "jpeg", strm);      strm.close();  %>  
7.登录控制器方法

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  1. /**  
  2.  * 到登录界面  
  3.  *   
  4.  * @return  
  5.  * @throws Exception  
  6.  */    
  7. @RequestMapping(“login.do”)    
  8. public String adminPage(HttpServletRequest request) throws Exception {    
  9.     // 如果登陆失败从request中获取认证异常信息,shiroLoginFailure就是shiro异常类的全限定名    
  10.     String exceptionClassName = (String) request.getAttribute(”shiroLoginFailure”);    
  11.     // 根据shiro返回的异常类路径判断,抛出指定异常信息    
  12.     if (exceptionClassName != null) {    
  13.         if (UnknownAccountException.class.getName().equals(exceptionClassName)) {    
  14.             // 最终会抛给异常处理器    
  15.             throw new CustomJsonException(“账号不存在”);    
  16.         } else if (IncorrectCredentialsException.class.getName().equals(exceptionClassName)) {    
  17.             throw new CustomJsonException(“用户名/密码错误”);    
  18.         } else if (“randomCodeError”.equals(exceptionClassName)) {    
  19.             throw new CustomJsonException(“验证码错误 ”);    
  20.         } else {    
  21.             throw new Exception();// 最终在异常处理器生成未知错误    
  22.         }    
  23.     }    
  24.     // 此方法不处理登陆成功(认证成功),shiro认证成功会自动跳转到上一个请求路径    
  25.     // 登陆失败还到login页面    
  26.     return “admin/login”;    
  27. }    
/**  * 到登录界面  *   * @return  * @throws Exception  */  @RequestMapping("login.do")  public String adminPage(HttpServletRequest request) throws Exception {      // 如果登陆失败从request中获取认证异常信息,shiroLoginFailure就是shiro异常类的全限定名      String exceptionClassName = (String) request.getAttribute("shiroLoginFailure");      // 根据shiro返回的异常类路径判断,抛出指定异常信息      if (exceptionClassName != null) {          if (UnknownAccountException.class.getName().equals(exceptionClassName)) {              // 最终会抛给异常处理器              throw new CustomJsonException("账号不存在");          } else if (IncorrectCredentialsException.class.getName().equals(exceptionClassName)) {              throw new CustomJsonException("用户名/密码错误");          } else if ("randomCodeError".equals(exceptionClassName)) {              throw new CustomJsonException("验证码错误 ");          } else {              throw new Exception();// 最终在异常处理器生成未知错误          }      }      // 此方法不处理登陆成功(认证成功),shiro认证成功会自动跳转到上一个请求路径      // 登陆失败还到login页面      return "admin/login";  }  

8.用户回显Controller

当用户登录认证成功后,CustomRealm在调用完doGetAuthenticationInfo时,通过

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  1. AuthenticationInfo authcInfo = new SimpleAuthenticationInfo(adminUser, password, this.getName());    
  2.     return authcInfo;   
AuthenticationInfo authcInfo = new SimpleAuthenticationInfo(adminUser, password, this.getName());      return authcInfo; 
SimpleAuthenticationInfo构造参数的第一个参数传入一个用户的对象,之后,可通过Subject subject = SecurityUtils.getSubject();中的subject.getPrincipal()获取到此对象。所以需要回显用户信息时,我这样调用的

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  1. @RequestMapping(“index.do”)    
  2. public String index(Model model) {    
  3.     //从shiro的session中取activeUser    
  4.     Subject subject = SecurityUtils.getSubject();    
  5.     //取身份信息    
  6.     TAdminUser adminUser =  (TAdminUser) subject.getPrincipal();    
  7.     //通过model传到页面    
  8.     model.addAttribute(”adminUser”, adminUser);    
  9.     return “admin/index”;    
  10. }    
@RequestMapping("index.do")  public String index(Model model) {      //从shiro的session中取activeUser      Subject subject = SecurityUtils.getSubject();      //取身份信息      TAdminUser adminUser =  (TAdminUser) subject.getPrincipal();      //通过model传到页面      model.addAttribute("adminUser", adminUser);      return "admin/index";  }  

9.在jsp页面中控制权限

先引入shiro的头文件

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  1. <!– shiro头引入 –>    
  2. <%@ taglib uri=“http://shiro.apache.org/tags” prefix=“shiro”%>    
<!-- shiro头引入 -->  <%@ taglib uri="http://shiro.apache.org/tags" prefix="shiro"%>  
采用shiro标签对权限进行处理

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  1. <!– 有curd权限才显示修改链接,没有该 权限不显示,相当 于if(hasPermission(curd)) –>    
  2.                 <shiro:hasPermission name=“curd”>    
  3.                     <BR />    
  4.                     我拥有超级的增删改查权限额    
  5.                 </shiro:hasPermission>    
<!-- 有curd权限才显示修改链接,没有该 权限不显示,相当 于if(hasPermission(curd)) -->                  <shiro:hasPermission name="curd">                      <BR />                      我拥有超级的增删改查权限额                  </shiro:hasPermission>  

10.在Controller控制权限

通过@RequiresPermissions注解,指定执行此controller中某个请求方法需要的权限
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  1. @RequestMapping(“/queryInfo.do”)    
  2.     @RequiresPermissions(“q”)//执行需要”q”权限    
  3.     public ModelAndView queryItems(HttpServletRequest request) throws Exception { }  
@RequestMapping("/queryInfo.do")      @RequiresPermissions("q")//执行需要"q"权限      public ModelAndView queryItems(HttpServletRequest request) throws Exception { }

11.MD5加密加盐处理

这里以修改密码为例,通过获取新的密码(明文)后通过MD5加密+加盐+3次加密为例
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  1. @RequestMapping(“updatePassword.do”)    
  2.     @ResponseBody    
  3.     public String updateAdminUserPassword(String newPassword) {    
  4.         // 从shiro的session中取activeUser    
  5.         Subject subject = SecurityUtils.getSubject();    
  6.         // 取身份信息    
  7.         TAdminUser adminUser = (TAdminUser) subject.getPrincipal();    
  8.         // 生成salt,随机生成    
  9.         SecureRandomNumberGenerator secureRandomNumberGenerator = new SecureRandomNumberGenerator();    
  10.         String salt = secureRandomNumberGenerator.nextBytes().toHex();    
  11.         Md5Hash md5 = new Md5Hash(newPassword, salt, 3);    
  12.         String newMd5Password = md5.toHex();    
  13.         // 设置新密码    
  14.         adminUser.setPassword(newMd5Password);    
  15.         // 设置盐    
  16.         adminUser.setSalt(salt);    
  17.         adminUserService.updateAdminUserPassword(adminUser);    
  18.         return newPassword;    
  19.     }    
@RequestMapping("updatePassword.do")      @ResponseBody      public String updateAdminUserPassword(String newPassword) {          // 从shiro的session中取activeUser          Subject subject = SecurityUtils.getSubject();          // 取身份信息          TAdminUser adminUser = (TAdminUser) subject.getPrincipal();          // 生成salt,随机生成          SecureRandomNumberGenerator secureRandomNumberGenerator = new SecureRandomNumberGenerator();          String salt = secureRandomNumberGenerator.nextBytes().toHex();          Md5Hash md5 = new Md5Hash(newPassword, salt, 3);          String newMd5Password = md5.toHex();          // 设置新密码          adminUser.setPassword(newMd5Password);          // 设置盐          adminUser.setSalt(salt);          adminUserService.updateAdminUserPassword(adminUser);          return newPassword;      }  





















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