第一步:引入jar包
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<dependency> <groupId>javax.servlet.jsp</groupId> <artifactId>jsp-api</artifactId> <version>2.2.1-b03</version></dependency> |
第二步:自定義標簽類
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import java.util.Map;import java.util.Set;import javax.servlet.http.HttpServletRequest;import org.jasig.cas.client.authentication.AttributePrincipal;import org.springframework.web.servlet.tags.RequestContextAwareTag;import com.goodidea.sso.dto.PrivilegesDto;import com.goodidea.sso.dto.ResourcesDto;import com.goodidea.sso.service.PrivilegesService;/** * * @ClassName: PrivilegeTag * @Description: 權限標簽類 * @author lsg* @date 2017年9月12日 下午5:36:01 * */public class PrivilegeTag extends RequestContextAwareTag{ private static final long serialVersionUID = 534416848523276042L; private String menuAlias; private String priAlias; public String getMenuAlias() { return menuAlias; } public void setMenuAlias(String menuAlias) { this.menuAlias = menuAlias; } public String getPriAlias() { return priAlias; } public void setPriAlias(String priAlias) { this.priAlias = priAlias; } @Override protected int doStartTagInternal() { // TODO Auto-generated method stub boolean result = false; try { HttpServletRequest request = (HttpServletRequest) pageContext.getRequest(); AttributePrincipal principal = (AttributePrincipal)request.getUserPrincipal(); Map<String, Object> attributes = principal.getAttributes(); String username=(String) attributes.get("username"); PrivilegesService privilegesService= (PrivilegesService)this.getRequestContext().getWebApplicationContext().getBean("privilegesServiceImpl"); Set<ResourcesDto> dto = privilegesService.findResourcesByUsername(username); for (ResourcesDto resourcesDto : dto) { if(this.menuAlias.equals(resourcesDto.getAlias())){ for (PrivilegesDto pdto : resourcesDto.getPrivileges()) { if(this.priAlias.equals(pdto.getAlias())){ result = true; } } } } } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); result =false; } return result? EVAL_BODY_INCLUDE : SKIP_BODY; }} |
第三步:創建tld標簽,放入在web-inf下
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<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE taglib PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.1//EN" "http://java.sun.com/j2ee/dtds/web-jsptaglibrary_1_1.dtd"><taglib> <tlibversion>1.0</tlibversion> <jspversion>1.1</jspversion> <shortname>privilege</shortname> <tag> <name>privilege</name> <tagclass>com.goodidea.sso.core.PrivilegeTag</tagclass> <bodycontent>empty</bodycontent> <!--這里如果設為empty,則無body--> <attribute> <name>menuAlias</name> <required>true</required> <rtexprvalue>true</rtexprvalue> </attribute> <attribute> <name>priAlias</name> <required>true</required> <rtexprvalue>true</rtexprvalue> </attribute> </tag></taglib> |
第四:頁面引用
<#assign p=JspTaglibs["/WEB-INF/tld/privilege.tld"] />
注意tld,如果不在web.xml上進行引入的話,就放在web-inf下,要不然會報找不到tld資源異常
補充知識：Springboot項目 freemarker 引入shiro 標簽
springboot集成shiro權限過程略過
一、添加maven 依賴
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<dependency> <groupId>net.mingsoft</groupId> <artifactId>shiro-freemarker-tags</artifactId> <version>0.1</version></dependency> |
二、注入FreeMarkerConfigurer，未指定templateLoaderPath時遇到過跳轉到頁面404問題
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@Beanpublic FreeMarkerConfigurer freeMarkerConfigurer() throws IOException, TemplateException { FreeMarkerConfigurer freeMarkerConfigurer = new FreeMarkerConfigurer(); freeMarkerConfigurer.setTemplateLoaderPath("classpath:templates/"); freemarker.template.Configuration configuration = freeMarkerConfigurer.createConfiguration(); configuration.setDefaultEncoding("UTF-8"); //這里可以添加其他共享變量 比如sso登錄地址 configuration.setSharedVariable("shiro", new ShiroTags()); freeMarkerConfigurer.setConfiguration(configuration); return freeMarkerConfigurer;} |
三、shiro標簽
1、session中讀取登錄人信息
<@shiro.principal/>
2、帶有loginName屬性的對象轉換為Prinipal后保存在session
<shiro:principal property="loginName" />
3、帶有loginName屬性的Json(個人使用的是FashJson對象)轉換為Prinipal后保存在session，使用freemarker標簽處理Json
<#assign loginInfo><@shiro.principal/></#assign>
<#assign data=loginInfo?eval>
用戶：${data.loginName!""}
4、其他shiro標簽使用
<@shiro.hasPermission name="權限編碼">
...
</@shiro.hasPermission>
以上這篇springboot 自定義權限標簽(tld),在freemarker引用操作就是小編分享給大家的全部內容了，希望能給大家一個參考，也希望大家多多支持服務器之家。
原文鏈接：https://blog.csdn.net/cutterwolf/article/details/78085808
