企业权限管理（八）-登陆使用数据库认证

Spring Security 使用数据库认证

在 Spring Security 中如果想要使用数据进行认证操作，有很多种操作方式，这里我们介绍使用 UserDetails 、 UserDetailsService来完成操作。

UserDetails

java 复制代码

public interface UserDetails extends Serializable {
Collection<? extends GrantedAuthority> getAuthorities();
String getPassword();
String getUsername();
boolean isAccountNonExpired();
boolean isAccountNonLocked();
boolean isCredentialsNonExpired();
boolean isEnabled();
}

UserDetails 是一个接口，我们可以认为 UserDetails 作用是于封装当前进行认证的用户信息，但由于其是一个接口，所以我们可以对其进行实现，也可以使用Spring Security 提供的一个 UserDetails 的实现类 User 来完成操作

以下是 User 类的部分代码

java 复制代码

public class User implements UserDetails, CredentialsContainer {
private String password;
private final String username;
private final Set<GrantedAuthority> authorities;
private final boolean accountNonExpired; //帐户是否过期
private final boolean accountNonLocked; //帐户是否锁定
private final boolean credentialsNonExpired; //认证是否过期
private final boolean enabled; //帐户是否可用
｝

UserDetailsService

java 复制代码

public interface UserDetailsService {
UserDetails loadUserByUsername(String username) throws UsernameNotFoundException;
}

面将 UserDetails 与 UserDetailsService 做了一个简单的介绍，那么我们具体如何完成 Spring Security 的数据库认证操作哪，我们通过用户管理中用户登录来完成Spring Security 的认证操作。

用户管理

3.1 用户登录

spring-security.xml

XML 复制代码

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:security="http://www.springframework.org/schema/security"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans.xsd
    http://www.springframework.org/schema/security
    http://www.springframework.org/schema/security/spring-security.xsd">

    <!-- 配置不拦截的资源 -->
    <security:http pattern="/login.jsp" security="none"/>
    <security:http pattern="/failer.jsp" security="none"/>
    <security:http pattern="/css/**" security="none"/>
    <security:http pattern="/img/**" security="none"/>
    <security:http pattern="/plugins/**" security="none"/>
    <!--
    	配置具体的规则
    	auto-config="true"	不用自己编写登录的页面，框架提供默认登录页面
    	use-expressions="false"	是否使用SPEL表达式（没学习过）
    -->
    <security:http auto-config="true" use-expressions="true">
        <!-- 配置具体的拦截的规则 pattern="请求路径的规则" access="访问系统的人，必须有ROLE_USER的角色" -->
        <security:intercept-url pattern="/**" access="hasAnyRole('ROLE_USER','ROLE_ADMIN')"/>

        <!-- 定义跳转的具体的页面 -->
        <security:form-login
                login-page="/login.jsp"
                login-processing-url="/login.do"
                default-target-url="/index.jsp"
                authentication-failure-url="/failer.jsp"
                authentication-success-forward-url="/pages/main.jsp"
        />

        <!-- 关闭跨域请求 -->
        <security:csrf disabled="true"/>
        <!-- 退出 -->
        <security:logout invalidate-session="true" logout-url="/logout.do" logout-success-url="/login.jsp" />

    </security:http>

    <!-- 切换成数据库中的用户名和密码 -->
    <security:authentication-manager>
        <security:authentication-provider user-service-ref="userService">
            <!-- 配置加密的方式
            <security:password-encoder ref="passwordEncoder"/>-->
            <security:password-encoder ref="passwordEncoder"/>
        </security:authentication-provider>
    </security:authentication-manager>

    <!-- 配置加密类 -->
    <bean id="passwordEncoder" class="org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder"/>

    <!-- 提供了入门的方式，在内存中存入用户名和密码
    <security:authentication-manager>
    	<security:authentication-provider>
    		<security:user-service>
    			<security:user name="admin" password="{noop}admin" authorities="ROLE_USER"/>
    		</security:user-service>
    	</security:authentication-provider>
    </security:authentication-manager>
    -->
    <security:global-method-security pre-post-annotations="enabled" jsr250-annotations="enabled" secured-annotations="enabled"></security:global-method-security>


</beans>

导入依赖

XML 复制代码

 <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-web</artifactId>
            <version>${spring.security.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-config</artifactId>
            <version>${spring.security.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-core</artifactId>
            <version>${spring.security.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-taglibs</artifactId>
            <version>${spring.security.version}</version>
        </dependency>

配置web.xml

XML 复制代码

  <!-- 配置加载类路径的配置文件 -->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath*:applicationContext.xml,classpath*:spring-security.xml</param-value>
  </context-param>

XML 复制代码

<filter>
    <filter-name>springSecurityFilterChain</filter-name>
    <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
  </filter>
  <filter-mapping>
    <filter-name>springSecurityFilterChain</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>

3.1.1. 登录页面 login.jsp

html 复制代码

<%@ page language="java" contentType="text/html; charset=UTF-8"
	pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
 
<title>数据 - AdminLTE2定制版 | Log in</title>
 
<meta
	content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no"
	name="viewport">
 
<link rel="stylesheet"
	href="${pageContext.request.contextPath}/plugins/bootstrap/css/bootstrap.min.css">
<link rel="stylesheet"
	href="${pageContext.request.contextPath}/plugins/font-awesome/css/font-awesome.min.css">
<link rel="stylesheet"
	href="${pageContext.request.contextPath}/plugins/ionicons/css/ionicons.min.css">
<link rel="stylesheet"
	href="${pageContext.request.contextPath}/plugins/adminLTE/css/AdminLTE.css">
<link rel="stylesheet"
	href="${pageContext.request.contextPath}/plugins/iCheck/square/blue.css">
</head>
 
<body class="hold-transition login-page">
	<div class="login-box">
		<div class="login-logo">
			<a href="all-admin-index.html"><b>ITCAST</b>后台管理系统</a>
		</div>
		<!-- /.login-logo -->
		<div class="login-box-body">
			<p class="login-box-msg">登录系统</p>
 
			<form action="${pageContext.request.contextPath}/login.do" method="post">
				<div class="form-group has-feedback">
					<input type="text" name="username" class="form-control"
						placeholder="用户名"> <span
						class="glyphicon glyphicon-envelope form-control-feedback"></span>
				</div>
				<div class="form-group has-feedback">
					<input type="password" name="password" class="form-control"
						placeholder="密码"> <span
						class="glyphicon glyphicon-lock form-control-feedback"></span>
				</div>
				<div class="row">
					<div class="col-xs-8">
						<div class="checkbox icheck">
							<label><input type="checkbox"> 记住 下次自动登录</label>
						</div>
					</div>
					<!-- /.col -->
					<div class="col-xs-4">
						<button type="submit" class="btn btn-primary btn-block btn-flat">登录</button>
					</div>
					<!-- /.col -->
				</div>
			</form>
 
			<a href="#">忘记密码</a><br>
 
 
		</div>
		<!-- /.login-box-body -->
	</div>
	<!-- /.login-box -->
 
	<!-- jQuery 2.2.3 -->
	<!-- Bootstrap 3.3.6 -->
	<!-- iCheck -->
	<script
		src="${pageContext.request.contextPath}/plugins/jQuery/jquery-2.2.3.min.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/bootstrap/js/bootstrap.min.js"></script>
	<script
		src="${pageContext.request.contextPath}/plugins/iCheck/icheck.min.js"></script>
	<script>
		$(function() {
			$('input').iCheck({
				checkboxClass : 'icheckbox_square-blue',
				radioClass : 'iradio_square-blue',
				increaseArea : '20%' // optional
			});
		});
	</script>
</body>
 
</html>

UserInfo

java 复制代码

package com.itheima.ssm.domain;

import java.util.List;

//与数据库中users对应
public class UserInfo {
    private String id;
    private String username;
    private String email;
    private String password;
    private String phoneNum;
    private int status;
    private String statusStr;
    private List<Role> roles;

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public String getPhoneNum() {
        return phoneNum;
    }

    public void setPhoneNum(String phoneNum) {
        this.phoneNum = phoneNum;
    }

    public int getStatus() {
        return status;
    }

    public void setStatus(int status) {
        this.status = status;
    }

    public String getStatusStr() {
        //状态0 未开启 1 开启
        if (status == 0) {
            statusStr = "未开启";
        } else if (status == 1) {
            statusStr = "开启";
        }
        return statusStr;
    }

    public void setStatusStr(String statusStr) {
        this.statusStr = statusStr;
    }

    public List<Role> getRoles() {
        return roles;
    }

    public void setRoles(List<Role> roles) {
        this.roles = roles;
    }
}

**3.1.2.**UserServiceImpl

java 复制代码

public interface IUserService extends UserDetailsService{
}

java 复制代码

package com.itheima.ssm.service.impl;



@Service("userService")
@Transactional
public class UserServiceImpl implements IUserService {
    @Autowired
    private IUserDao userDao;
    @Autowired
    private BCryptPasswordEncoder bCryptPasswordEncoder;



    @Override
    public UserInfo findById(String id) throws Exception {
        return userDao.findById(id);
    }

    @Override
    public void addRoleToUser(String userId, String[] roleIds) throws Exception {

        for(String roleId:roleIds){
            userDao.addRoleToUser(userId,roleId);
        }
    }

    @Override
    public List<Role> findOtherRoles(String userid) throws Exception {
        return userDao.findOtherRoles(userid);
    }

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        System.out.println(username);
        UserInfo userInfo = null;
        try {
            userInfo = userDao.findByUsername(username);
//            System.out.println(username);
//            System.out.println(userInfo.toString());
        } catch (Exception e) {
            e.printStackTrace();
        }
        //处理自己的用户对象封装成UserDetails
        User user = new User(userInfo.getUsername(), userInfo.getPassword(), userInfo.getStatus() == 0 ? false : true, true, true, true, getAuthority(userInfo.getRoles()));

        return user;
    }
    //作用就是返回一个List集合，集合中装入的是角色描述
    public List<SimpleGrantedAuthority> getAuthority(List<Role> roles) {

        List<SimpleGrantedAuthority> list = new ArrayList<>();
        for (Role role : roles) {
            list.add(new SimpleGrantedAuthority("ROLE_" + role.getRoleName()));
        }
        return list;
    }

    @Override
    public List<UserInfo> findAll() throws Exception{
        //userDao.findAll();
        return userDao.findAll();
    }

    @Override
    public void save(UserInfo userInfo)throws Exception {
        userInfo.setPassword(bCryptPasswordEncoder.encode(userInfo.getPassword()));
        userDao.save(userInfo);
    }

}

3.1.3.IUserDao

java 复制代码

public interface IUserDao {
@Select("select * from user where id=#{id}")
public UserInfo findById(Long id) throws Exception;
@Select("select * from user where username=#{username}")
@Results({
@Result(id = true, property = "id", column = "id"),
@Result(column = "username", property = "username"),
@Result(column = "email", property = "email"),
@Result(column = "password", property = "password"),
@Result(column = "phoneNum", property = "phoneNum"),
@Result(column = "status", property = "status"),
@Result(column = "id", property = "roles", javaType = List.class, many =
@Many(select = "com.itheima.ssm.dao.IRoleDao.findRoleByUserId")) })
public UserInfo findByUsername(String username);
}

IRoleDao

java 复制代码

public interface IRoleDao {

    //根据用户id查询出所有对应的角色
    @Select("select * from role where id in (select roleId from users_role where userId=#{userId})")
    public List<Role> findRoleByUserId(String userId) throws Exception;
}

3.2 用户退出

使用 spring security 完成用户退出，非常简单

配置

XML 复制代码

<security:logout invalidate-session="true" logout-url="/logout.do" logout-successurl="/login.jsp" />

在header.jsp修改

html 复制代码

<a href="${pageContext.request.contextPath}/logout.do"
class="btn btn-default btn-flat">注销</a>