目前在企業級項目里做權限安全方面喜歡使用Apache開源的Shiro框架或者Spring框架的子框架Spring Security。

Apache Shiro是一個強大且易用的Java安全框架,執行身份驗證、授權、密碼學和會話管理。

Shiro框架具有輕便，開源的優點，所以本博客介紹基于Shiro的登錄驗證實現。

在maven里加入shiro需要的jar

<!--shiro start-->
      <dependency>
            <groupId>org.apache.shiro</groupId>
            <artifactId>shiro-all</artifactId>
            <version>1.2.3</version>
       </dependency>
<!-- shiro end-->

在web.xml加上Shiro過濾器配置：

  <!-- Shiro過濾器配置 start -->
   <filter>
     <filter-name>shiroFilter</filter-name>
     <filter-class>
             org.springframework.web.filter.DelegatingFilterProxy
         </filter-class>
     <init-param>
       <param-name>targetFilterLifecycle</param-name>
       <param-value>true</param-value>
     </init-param>
   </filter>
   <filter-mapping>
     <filter-name>shiroFilter</filter-name>
     <url-pattern>/*</url-pattern>
   </filter-mapping>
  <!-- Shiro過濾器配置 end -->

編寫shiro的ShiroRealm類：

package org.muses.jeeplatform.core.security.shiro;

import javax.annotation.Resource;

import org.apache.shiro.authc.AuthenticationException;
import org.apache.shiro.authc.AuthenticationInfo;
import org.apache.shiro.authc.AuthenticationToken;
import org.apache.shiro.authc.LockedAccountException;
import org.apache.shiro.authc.SimpleAuthenticationInfo;
import org.apache.shiro.authc.UnknownAccountException;
import org.apache.shiro.authz.AuthorizationInfo;
import org.apache.shiro.authz.SimpleAuthorizationInfo;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.subject.PrincipalCollection;
import org.muses.jeeplatform.model.entity.User;
import org.muses.jeeplatform.service.UserService;

/**
 * @description 基于Shiro框架的權限安全認證和授權
 * @author Nicky
 * @date 2017年3月12日
 */
public class ShiroRealm extends AuthorizingRealm {

	/**注解引入業務類**/
	@Resource
	UserService userService;
	
	/**
	 * 登錄信息和用戶驗證信息驗證(non-Javadoc)
	 * @see org.apache.shiro.realm.AuthenticatingRealm#doGetAuthenticationInfo(AuthenticationToken)
	 */
	@Override
	protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {

		 String username = (String)token.getPrincipal();  				//得到用戶名 
	     String password = new String((char[])token.getCredentials()); 	//得到密碼
	     
	     User user = userService.findByUsername(username);

	     /**檢測是否有此用戶 **/
	     if(user == null){
	    	 throw new UnknownAccountException();//沒有找到賬號異常
	     }
	     /**檢驗賬號是否被鎖定 **/
	     if(Boolean.TRUE.equals(user.getLocked())){
	    	 throw new LockedAccountException();//拋出賬號鎖定異常
	     }
	     /**AuthenticatingRealm使用CredentialsMatcher進行密碼匹配**/
	     if(null != username && null != password){
	    	 return new SimpleAuthenticationInfo(username, password, getName());
	     }else{
	    	 return null;
	     }
	     
	}
	
	/**
	 * 授權查詢回調函數, 進行鑒權但緩存中無用戶的授權信息時調用,負責在應用程序中決定用戶的訪問控制的方法(non-Javadoc)
	 * @see AuthorizingRealm#doGetAuthorizationInfo(PrincipalCollection)
	 */
	@Override
	protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection pc) {
		String username = (String)pc.getPrimaryPrincipal();
		SimpleAuthorizationInfo authorizationInfo = new SimpleAuthorizationInfo();
	    authorizationInfo.setRoles(userService.getRoles(username));
	    authorizationInfo.setStringPermissions(userService.getPermissions(username));
		System.out.println("Shiro授權");
	    return authorizationInfo;
	}
	
	 @Override
	 public void clearCachedAuthorizationInfo(PrincipalCollection principals) {
		 super.clearCachedAuthorizationInfo(principals);
	 }

	 @Override
	 public void clearCachedAuthenticationInfo(PrincipalCollection principals) {
	     super.clearCachedAuthenticationInfo(principals);
	 }

	 @Override
	 public void clearCache(PrincipalCollection principals) {
	      super.clearCache(principals);
	 }

}

在Spring框架里集成Shiro，加入配置

<!--  Shiro start  -->
		<bean id="securityManager" class="org.apache.shiro.web.mgt.DefaultWebSecurityManager">
			<property name="realm" ref="ShiroRealm" />
		</bean>
		
		<!-- 項目自定義的Realm -->
	    <bean id="ShiroRealm" class="org.muses.jeeplatform.core.security.shiro.ShiroRealm" ></bean>
		
		<!-- Shiro Filter -->
		<bean id="shiroFilter" class="org.apache.shiro.spring.web.ShiroFilterFactoryBean">
			<property name="securityManager" ref="securityManager" />
			
			<property name="loginUrl" value="/login" />
			
			<property name="successUrl" value="/admin/index" />
			
			<property name="unauthorizedUrl" value="/login" />
			
			<property name="filterChainDefinitions">
				<value>
				/static/**					= anon
				/upload/**			    	= anon
				/plugins/** 				= anon
	           	/code 						= anon
	           	/login    	 	       		= anon
	           	/logincheck					= anon
	           	/**							= authc
				</value>
			</property>
		</bean>
	<!--  Shiro end  -->	

登錄驗證控制類實現：

package org.muses.jeeplatform.web.controller;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;

import javax.servlet.http.HttpServletRequest;

import net.sf.json.JSONArray;
import net.sf.json.JSONObject;

import org.apache.shiro.SecurityUtils;
import org.apache.shiro.authc.AuthenticationException;
import org.apache.shiro.authc.UsernamePasswordToken;
import org.apache.shiro.crypto.hash.SimpleHash;
import org.apache.shiro.session.Session;
import org.apache.shiro.subject.Subject;
import org.muses.jeeplatform.core.Constants;
import org.muses.jeeplatform.model.entity.Menu;
import org.muses.jeeplatform.model.entity.Permission;
import org.muses.jeeplatform.model.entity.Role;
import org.muses.jeeplatform.model.entity.User;
import org.muses.jeeplatform.service.MenuService;
import org.muses.jeeplatform.service.UserService;
import org.muses.jeeplatform.utils.Tools;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.ModelAndView;

/**
 * @description 登錄操作的控制類，使用Shiro框架，做好了登錄的權限安全認證，
 * getRemortIP()方法獲取用戶登錄時的ip并保存到數據庫
 * @author Nicky
 * @date 2017年3月15日
 */
@Controller
public class LoginController extends BaseController {
	
	@Autowired
	UserService userService;
	@Autowired
	MenuService menuService;
	
	/**
	 * 獲取登錄用戶的IP
	 * @throws Exception 
	 */
	public void getRemortIP(String username)  {  
		HttpServletRequest request = this.getRequest();
		Map<String,String> map = new HashMap<String,String>();
		String ip = "";
		if (request.getHeader("x-forwarded-for") == null) {  
			ip = request.getRemoteAddr();  
	    }else{
	    	ip = request.getHeader("x-forwarded-for");  
	    }
		map.put("username", username);
		map.put("loginIp", ip);
		 userService.saveIP(map);
	}  
	
	/**
	 * 訪問后臺登錄頁面
	 * @return
	 * @throws Exception
	 */
	@RequestMapping(value="/login",produces="text/html;charset=UTF-8")
	public ModelAndView toLogin()throws ClassNotFoundException{
		ModelAndView mv = this.getModelAndView();
		mv.setViewName("admin/frame/login");
		return mv;
	}
	
	/**
	 * 基于Shiro框架的登錄驗證,頁面發送JSON請求數據，
	 * 服務端進行登錄驗證之后，返回Json響應數據，"success"表示驗證成功
	 * @param request
	 * @return
	 * @throws Exception
	 */
	@RequestMapping(value="/logincheck", produces="application/json;charset=UTF-8")
	@ResponseBody
	public String loginCheck(HttpServletRequest request)throws AuthenticationException{
		JSONObject obj = new JSONObject();
		String errInfo = "";//錯誤信息
		String logindata[] = request.getParameter("LOGINDATA").split(",");
		if(logindata != null && logindata.length == 3){
			//獲取Shiro管理的Session
			Subject subject = SecurityUtils.getSubject();
			Session session = subject.getSession();
			String codeSession = (String)session.getAttribute(Constants.SESSION_SECURITY_CODE);
			String code = logindata[2]; 
			/**檢測頁面驗證碼是否為空，調用工具類檢測**/
			if(Tools.isEmpty(code)){
				errInfo = "nullcode";
			}else{
				String username = logindata[0];
				String password = logindata[1];
				if(Tools.isNotEmpty(codeSession) && codeSession.equalsIgnoreCase(code)){
					//Shiro框架SHA加密
					String passwordsha = new SimpleHash("SHA-1",username,password).toString();
					System.out.println(passwordsha);
					//檢測用戶名和密碼是否正確
					User user = userService.doLoginCheck(username,passwordsha);
					if(user != null){
						if(Boolean.TRUE.equals(user.getLocked())){
							errInfo = "locked";
						}else{
							//Shiro添加會話
							session.setAttribute("username", username);
							session.setAttribute(Constants.SESSION_USER, user);
							//刪除驗證碼Session
							session.removeAttribute(Constants.SESSION_SECURITY_CODE);
							//保存登錄IP
							getRemortIP(username);
							/**Shiro加入身份驗證**/
							Subject sub = SecurityUtils.getSubject();
							UsernamePasswordToken token = new UsernamePasswordToken(username,password);
							sub.login(token);
						}
					}else{
						//賬號或者密碼錯誤
						errInfo = "uerror";
					}
					if(Tools.isEmpty(errInfo)){
						errInfo = "success";
					}
				}else{
					//缺少參數
					errInfo="codeerror";
				}
			}
		}
		obj.put("result", errInfo);
		return obj.toString();
	}
		
	/**
	 * 后臺管理系統主頁
	 * @return
	 * @throws Exception
	 */
	@RequestMapping(value="/admin/index")
	public ModelAndView toMain() throws AuthenticationException{
		ModelAndView mv = this.getModelAndView();
		/**獲取Shiro管理的Session**/
		Subject subject = SecurityUtils.getSubject();
		Session session = subject.getSession();
		User user = (User)session.getAttribute(Constants.SESSION_USER);
		
		if(user != null){
			...//業務實現
		}else{
			//會話失效，返回登錄界面
			mv.setViewName("admin/frame/login");
		}
		mv.setViewName("admin/frame/index");
		return mv;
	}
	
	/**
	 * 注銷登錄
	 * @return
	 */
	@RequestMapping(value="/logout")
	public ModelAndView logout(){
		ModelAndView mv = this.getModelAndView();
		/**Shiro管理Session**/
		Subject sub = SecurityUtils.getSubject();
		Session session = sub.getSession();
		session.removeAttribute(Constants.SESSION_USER);
		session.removeAttribute(Constants.SESSION_SECURITY_CODE);
		/**Shiro銷毀登錄**/
		Subject subject = SecurityUtils.getSubject();
		subject.logout();
		/**返回后臺系統登錄界面**/
		mv.setViewName("admin/frame/login");
		return mv;
	}


}

前端Ajax和JQeury校驗實現：

 /**客戶端校驗**/
    function checkValidity() {

        if ($("#username").val() == "") {

            $("#username").tips({
                side : 2,
                msg : '用戶名不得為空',
                bg : '#AE81FF',
                time : 3
            });

            $("#username").focus();
            return false;
        }

        if ($("#password").val() == "") {
            $("#password").tips({
                side : 2,
                msg : '密碼不得為空',
                bg : '#AE81FF',
                time : 3
            });

            $("#password").focus();
            return false;
        }
        if ($("#code").val() == "") {

            $("#code").tips({
                side : 1,
                msg : '驗證碼不得為空',
                bg : '#AE81FF',
                time : 3
            });

            $("#code").focus();
            return false;
        }

        return true;
    }

    /**服務器校驗**/
    function loginCheck(){
        if(checkValidity()){
            var username = $("#username").val();
            var password = $("#password").val();
            var code = username+","+password+","+$("#code").val();
            $.ajax({
                type: "POST",//請求方式為POST
                url: 'logincheck',//檢驗url
                data: {LOGINDATA:code,tm:new Date().getTime()},//請求數據
                dataType:'json',//數據類型為JSON類型
                cache: false,//關閉緩存
                success: function(data){//響應成功
                    if("success" == data.result){
                        $("#login").tips({
                            side : 1,
                            msg : '正在登錄 , 請稍后 ...',
                            bg : '#68B500',
                            time : 10
                        });
                        window.location.href="admin/index";
                    }else if("uerror" == data.result){
                        $("#username").tips({
                            side : 1,
                            msg : "用戶名或密碼有誤",
                            bg : '#FF5080',
                            time : 15
                        });
                        $("#username").focus();
                    }else if("codeerror" == data.result){
                        $("#code").tips({
                            side : 1,
                            msg : "驗證碼輸入有誤",
                            bg : '#FF5080',
                            time : 15
                        });
                        $("#code").focus();
                    }else if("locked" == data.result){
                        alert('您的賬號被鎖定了，嗚嗚');
                    }else{
                        $("#username").tips({
                            side : 1,
                            msg : "缺少參數",
                            bg : '#FF5080',
                            time : 15
                        });
                        $("#username").focus();
                    }
                }
            });
        }
    }

登錄成功，Session會話過期，需要重新登錄，保證系統安全性

以上就是動力節點小編介紹的"shiro登錄驗證"，希望對大家有幫助，如有疑問，請在線咨詢，有專業老師隨時為您務。