Shiro自定义标签

书写java类

1. 继承org.apache.shiro.web.tags.PermissionTag类
2. 重写showTagBody方法

代码

package com.dilinbao.core.shiro.tag;

import org.apache.shiro.subject.Subject;
import org.apache.shiro.web.tags.PermissionTag;

/**   
 * @ClassName:  HasAnyPermissionTag   
 * @Description:拥有其中一个权限即可 
 * @author: rick
 * @date:   2018年1月23日 下午4:27:44  
 */
public class HasAnyPermissionTag extends PermissionTag{

    /**
     * 序列化
     */
    private static final long serialVersionUID = -6121655720312024938L;

    /**
     * 
     * @Title:  HasAllPermissionTag   
     * @Description:   构造方法
     * @param:    
     * @throws
     */
    public HasAnyPermissionTag(){

    }

    /**
     * 
     * 
Title: showTagBody
   
     * 
Description: 验证权限
     * @param permissions 就是标签中name的字符串
     * @return   
     * @see org.apache.shiro.web.tags.PermissionTag#showTagBody(java.lang.String)
     */
    @Override
    protected boolean showTagBody(String permissions) {
        boolean hasAnyPermission = false;
        // 获取所有权限
        String[] permissionArray = permissions.split(",");
        // 获取当前用户
        Subject currentUser = getSubject();
        if(currentUser != null){
            // 遍历权限
            for(String permission : permissionArray){
                // 判断当前用户是否拥有此权限
                if(currentUser.isPermitted(permission)){
                    hasAnyPermission = true;
                    break;
                }
            }
        }
        return hasAnyPermission;
    }

}

package com.dilinbao.core.shiro.tag;

import org.apache.shiro.subject.Subject;
import org.apache.shiro.web.tags.PermissionTag;

/**   
 * @ClassName:  HasAllPermissionTag   
 * @Description:拥有所有的权限才可以
 * @author: rick
 * @date:   2018年1月23日 下午4:52:44   
 */
public class HasAllPermissionTag extends PermissionTag{

    /**
     * 序列化
     */
    private static final long serialVersionUID = -6121655720312024938L;

    /**
     * 
     * @Title:  HasAllPermissionTag   
     * @Description:   构造方法
     * @param:    
     * @throws
     */
    public HasAllPermissionTag(){

    }

    /**   
     * 
Title: showTagBody
   
     * 
Description: 验证权限  
     * @param arg0
     * @return   
     * @see org.apache.shiro.web.tags.PermissionTag#showTagBody(java.lang.String)   
     */
    @Override
    protected boolean showTagBody(String permissions) {
        boolean hasAllPermission = false;
        // 获取所有权限
        String[] permissionArray = permissions.split(",");
        // 获取当前用户
        Subject currentUser = getSubject();
        if(currentUser != null){
            // 遍历权限
            for(String permission : permissionArray){
                // 判断当前用户是否拥有此权限
                if(currentUser.isPermitted(permission)){
                    hasAllPermission = true;
                }else{
                    hasAllPermission = false;
                    break;
                }
            }
        }
        return hasAllPermission;
    }

}

配置shiros.tld

<tag>
    
    <name>hasAnyPermissionname>
    
    <tag-class>com.dilinbao.core.shiro.tag.HasAnyPermissionTagtag-class>
    <body-content>JSPbody-content>
    <description>has any permission is okdescription>
    <attribute>
      <name>namename>
      <required>truerequired>
      <rtexprvalue>truertexprvalue>
    attribute>
  tag>

  <tag>
    <name>hasAllPermissionname>
    <tag-class>com.dilinbao.core.shiro.tag.HasAllPermissionTagtag-class>
    <body-content>JSPbody-content>
    <description>only has all permission is okdescription>
    <attribute>
      <name>namename>
      <required>truerequired>
      <rtexprvalue>truertexprvalue>
    attribute>
  tag>