SSM整合shiro-自定义过滤器(模板)

ゝ一世哀愁。 2022-11-21 06:56 214阅读 0赞

# 有时候一个链接可能对应多个权限名称 #

/csdn/list.do = perms["写博客","更改博客内容"]

上面那样写shiro的 过滤器肯定是不行的,所以要自己自定义一个过滤器

# 自定义过滤器(模板) #

package cn.itcsdn.filter;
    
    import org.apache.shiro.subject.Subject;
    import org.apache.shiro.web.filter.authz.AuthorizationFilter;
    import javax.servlet.ServletRequest;
    import javax.servlet.ServletResponse;
    import java.io.IOException;
    
    public class MyPermsFilter extends AuthorizationFilter { 
    
        public boolean isAccessAllowed(ServletRequest request, ServletResponse response, Object mappedValue) throws IOException { 
    
            Subject subject = getSubject(request, response);
            String[] perms = (String[]) mappedValue;
    // 当凡有其中的一个权限就放行
            for (String perm : perms) { 
                if(subject.isPermitted(perm)){ 
                    return true;
                }
            }
            return false;
        }
    }

# 将自定义的过滤器交给shiro #

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添加配置代码如下:

<bean id="myPerms" class="cn.itcast.filter.MyPermsFilter"/>

<property name="filters">
                <map>
                    <entry key="myPerms" value-ref="myPerms"/>
                </map>
            </property>

在使用:`/csdn/list.do = perms["写博客","更改博客内容"]`就可以了

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