Shiro 集成 Web

Web 集成 Shiro 的练习项目。

Servlet + Shiro

项目结构

• 新建Maven项目，pom配置如下

  <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/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.zhen.shiro</groupId>
    <artifactId>0322ShiroWeb</artifactId>
    <packaging>war</packaging>
    <version>0.0.1-SNAPSHOT</version>
    <name>0322ShiroWeb Maven Webapp</name>
    <url>http://maven.apache.org</url>
    <dependencies>
      <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>3.8.1</version>
        <scope>test</scope>
      </dependency>
  
      <!-- 添加servlet支持 -->
  	<dependency>
  	    <groupId>javax.servlet</groupId>
  	    <artifactId>javax.servlet-api</artifactId>
  	    <version>3.1.0</version>
  	</dependency>
      <!-- servlet end -->
  
      <!-- jsp -->
      <dependency>
  	    <groupId>javax.servlet.jsp</groupId>
  	    <artifactId>javax.servlet.jsp-api</artifactId>
  	    <version>2.3.1</version>
  	</dependency>
  	<!-- jsp end -->
  
      <!-- 添加 jstl 支持 -->
      <dependency>
  	    <groupId>javax.servlet</groupId>
  	    <artifactId>jstl</artifactId>
  	    <version>1.2</version>
  	</dependency>
  
      <!-- 添加 log4j 日志支持  -->
      <dependency>
  	    <groupId>log4j</groupId>
  	    <artifactId>log4j</artifactId>
  	    <version>1.2.17</version>
  	</dependency>
  	<dependency>
  	    <groupId>org.slf4j</groupId>
  	    <artifactId>slf4j-api</artifactId>
  	    <version>1.7.21</version>
  	</dependency>
  
  	<!-- commons-logging -->
  	<dependency>
  	    <groupId>commons-logging</groupId>
  	    <artifactId>commons-logging</artifactId>
  	    <version>1.2</version>
  	</dependency>
  
      <!-- 添加 shiro 支持 -->
      <dependency>
  	    <groupId>org.apache.shiro</groupId>
  	    <artifactId>shiro-core</artifactId>
  	    <version>1.3.2</version>
  	</dependency>
  	<!-- 添加 shiro web 支持 -->
  	<dependency>
  	    <groupId>org.apache.shiro</groupId>
  	    <artifactId>shiro-web</artifactId>
  	    <version>1.3.2</version>
  	</dependency>
  
    </dependencies>
    <build>
      <finalName>0322ShiroWeb</finalName>
    </build>
  </project>　

• 两个Servlet类
  • LoginServlet 代码如下

    package com.zhen.servlet;
    
    import java.io.IOException;
    
    import javax.servlet.ServletException;
    import javax.servlet.http.HttpServlet;
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    
    import org.apache.shiro.SecurityUtils;
    import org.apache.shiro.authc.UsernamePasswordToken;
    import org.apache.shiro.subject.Subject;
    
    public class LoginServlet extends HttpServlet{
    
    	/**
    	 *
    	 */
    	private static final long serialVersionUID = 1L;
    
    	@Override
    	protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    		// TODO Auto-generated method stub
    		System.out.println("login doGet");
    		req.getRequestDispatcher("login.jsp").forward(req, resp);
    	}
    
    	@Override
    	protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    
    		System.out.println("login doPost");
    		String userName = req.getParameter("userName");
    		String password = req.getParameter("password");
    		System.out.println("login:name="+userName+" password="+password);
    
    		Subject currentUser = SecurityUtils.getSubject();
    		UsernamePasswordToken token = new UsernamePasswordToken(userName, password);
    		try {
    			currentUser.login(token);
    			resp.sendRedirect("success.jsp");
    		} catch (Exception e) {
    			e.printStackTrace();
    			req.setAttribute("errorInfo", "用户名或者密码错误");
    			req.getRequestDispatcher("login.jsp").forward(req, resp);
    		}
    
    	}
    }

  • AdminServlet 代码如下

    package com.zhen.servlet;
    
    import java.io.IOException;
    
    import javax.servlet.ServletException;
    import javax.servlet.http.HttpServlet;
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    
    public class AdminServlet extends HttpServlet{
    
    	/**
    	 *
    	 */
    	private static final long serialVersionUID = 1L;
    
    	@Override
    	protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    		System.out.println("admin doGet");
    	}
    
    	@Override
    	protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    		System.out.println("admin doPost");
    	}
    }
    

• 配置 web.xml 文件，如下

  <?xml version="1.0" encoding="UTF-8"?>
  <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
    <display-name>0322ShiroWeb</display-name>
    <welcome-file-list>
      <welcome-file>index.html</welcome-file>
      <welcome-file>index.htm</welcome-file>
      <welcome-file>index.jsp</welcome-file>
      <welcome-file>default.html</welcome-file>
      <welcome-file>default.htm</welcome-file>
      <welcome-file>default.jsp</welcome-file>
    </welcome-file-list>
  
    <listener>
      <listener-class>org.apache.shiro.web.env.EnvironmentLoaderListener</listener-class>
    </listener>
  
    <!-- 添加 shiro 支持 -->
    <filter>
      <filter-name>ShiroFilter</filter-name>
      <filter-class>org.apache.shiro.web.servlet.ShiroFilter</filter-class>
     <!--  <init-param>
      	<param-name>configPath</param-name>
      	<param-value>/WEB-INF/shiro.ini</param-value>
      </init-param> -->
    </filter>
  
    <filter-mapping>
      <filter-name>ShiroFilter</filter-name>
      <url-pattern>/*</url-pattern>
      <!-- <dispatcher>REQUEST</dispatcher>
      <dispatcher>FORWARD</dispatcher>
      <dispatcher>INCLUDE</dispatcher>
      <dispatcher>ERROR</dispatcher> -->
    </filter-mapping>
  
    <servlet>
    	<servlet-name>LoginServlet</servlet-name>
    	<servlet-class>com.zhen.servlet.LoginServlet</servlet-class>
    </servlet>
    <servlet-mapping>
    	<servlet-name>LoginServlet</servlet-name>
    	<url-pattern>/login</url-pattern>
    </servlet-mapping>
  
    <servlet>
    	<servlet-name>adminServlet</servlet-name>
    	<servlet-class>com.zhen.servlet.AdminServlet</servlet-class>
    </servlet>
    <servlet-mapping>
    	<servlet-name>adminServlet</servlet-name>
    	<url-pattern>/admin</url-pattern>
    </servlet-mapping>
  
  </web-app>

• WEB-INF 下创建 shiro.ini文件，如下

  [main]
  authc.loginUrl=/login
  roles.unauthorizedUrl=/unauthorized.jsp
  perms.unauthorizedUrl=/unauthorized.jsp
  [users]
  zhen=123,admin
  jack=jack,teacher
  marry=marry
  json=json
  [roles]
  admin=user:*
  teacher=student:*
  [urls]
  /login=anon
  /admin=authc
  /admin?=authc
  /admin*=authc
  /admin/**=authc
  /student=roles[teacher]
  /teacher=perms[user:create]

项目大概就这么些东西，主要来看下 shiro.ini 文件中每行代表的意思

[main]

authc.loginUrl=/login　　:身份验证的登录路径

roles.unauthorizedUrl=/unauthorized.jsp　　:角色认证不通过要跳转到的路径

perms.unauthorizedUrl=/unauthorized.jsp　　:权限认证不通过要跳转到的路径

[users]

zhen=123,admin　　 :zhen用户，密码为123，角色为admin

jack=jack,teacher :jack用户，密码为jack，角色为teacher

marry=marry　　　　:marry用户，密码为marry

[roles]

admin=user:*　　　　:admin角色拥有的权限为 user:*

teacher=student:*　:teacher角色拥有的权限为 student:*

[urls]

/login=anon　　: 表明 /login 此请求不需要进行身份认证

/admin=authc　　: 表明 /admin 请求需要进行身份认证，身份认证的登录路径对应上边的 authc.loginUrl

/admin?=authc　 : 表明 /admin? 请求需要进行身份认证，/admin? 可以匹配为 /admin1   /admin2,?匹配一个字符

/admin*=authc　 : 表明 /admin* 请求需要进行身份认证，/admin* 可以匹配为 /admin1,/admin12,/admin, * 匹配零个、一个或多个字符

/admin/**=authc :表明 /admin/** 请求需要进行身份认证，/admin/** 可以匹配为 /admin/a , /admin/a/b, **匹配零个或多个路径

/student=roles[teacher]　　: 表明 /student 请求只有角色为 teacher 的用户才能访问

/teacher=perms[user:create] : 表明 ／teacher 请求只有拥有 user:create 权限的用户才能访问

url 匹配符

• ？
  匹配一个字符
• *
  匹配零个、一个或多个字符
• **
  匹配零个或多个路径