SpringBoot + Security实现权限控制

网上找了好几个，因为各种原因不太行，下面这个亲测可行

参考：https://blog.csdn.net/u012702547/article/details/54319508

基于SpringBoot + JPA

安全框架：Security5

页面：Thymeleaf + BootStrap

工程目录结构：

 引入依赖包

pom.xml

<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/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.</modelVersion>

  <groupId>com.zit</groupId>
  <artifactId>Hello</artifactId>
  <version>0.0.-SNAPSHOT</version>
  <packaging>jar</packaging>

  <properties>
    <project.build.sourceEncoding>UTF-</project.build.sourceEncoding>
  </properties>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0..RELEASE</version>
    </parent>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
               <groupId>org.springframework.boot</groupId>
               <artifactId>spring-boot-starter-data-jpa</artifactId>
         </dependency>

         <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-thymeleaf</artifactId>
        </dependency>

         <dependency>
            <groupId>org.thymeleaf.extras</groupId>
            <artifactId>thymeleaf-extras-springsecurity4</artifactId>
        </dependency>

         <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.</version>
        </dependency>

    </dependencies>

    <repositories>
        <repository>
            <id>spring-snapshots</id>
            <name>Spring Snapshots</name>
            <url>https://repo.spring.io/libs-snapshot</url>
            <snapshots>
                <enabled>true</enabled>
            </snapshots>
        </repository>
    </repositories>

</project>

 配置文件

application.properties

spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf-8
spring.datasource.username=root
spring.datasource.password=
logging.level.org.springframework.security=info
spring.thymeleaf.cache=false
spring.jpa.hibernate.ddl-auto=update
spring.jpa.show-sql=true
spring.jackson.serialization.indent_output=true

spring.thymeleaf.cache=false
 

1、实体类

（1）用户

package com.zit;

import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.UserDetails;

import javax.persistence.*;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

/**
 *
 */
@Entity
public class SysUser implements UserDetails {
    @Id
    @GeneratedValue
    private Long id;
    private String username;
    private String password;

    @ManyToMany(cascade = {CascadeType.REFRESH},fetch = FetchType.EAGER)
    private List<SysRole> roles;

    public Long getId() {
        return id;
    }

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

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

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

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

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

    @Override
    public Collection<? extends GrantedAuthority> getAuthorities() {
        List<GrantedAuthority> auths = new ArrayList<>();
        List<SysRole> roles = this.getRoles();
        for (SysRole role : roles) {
            auths.add(new SimpleGrantedAuthority(role.getName()));
        }
        return auths;
    }

    @Override
    public String getPassword() {
        return this.password;
    }

    @Override
    public String getUsername() {
        return this.username;
    }

    @Override
    public boolean isAccountNonExpired() {
        return true;
    }

    @Override
    public boolean isAccountNonLocked() {
        return true;
    }

    @Override
    public boolean isCredentialsNonExpired() {
        return true;
    }

    @Override
    public boolean isEnabled() {
        return true;
    }
}

（2）角色

package com.zit;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;

/**
 *
 */
@Entity
public class SysRole {
    @Id
    @GeneratedValue
    private Long id;
    private String name;

    public Long getId() {
        return id;
    }

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

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
}

2、JPA访问数据库

package com.zit;

import org.springframework.data.jpa.repository.JpaRepository;

public interface SysUserRepository extends JpaRepository<SysUser, Long> {
    SysUser findByUsername(String username);
}

3、控制器

（1）控制器给页面传值的对象

package com.zit;

/**
 * 传递在页面上的消息
 */
public class Msg {
    private String title;
    private String content;
    private String extraInfo;

    public Msg() {
    }

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public String getContent() {
        return content;
    }

    public void setContent(String content) {
        this.content = content;
    }

    public String getExtraInfo() {
        return extraInfo;
    }

    public void setExtraInfo(String extraInfo) {
        this.extraInfo = extraInfo;
    }

    public Msg(String title, String content, String extraInfo) {
        this.title = title;
        this.content = content;
        this.extraInfo = extraInfo;
    }
}

（2）控制类

package com.zit;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
public class HomeController {
    @RequestMapping("/")
    public String index(Model model) {
        Msg msg = new Msg("测试标题", "测试内容", "额外信息，只对管理员显示");
        model.addAttribute("msg", msg);
        return "index";
    }
}

4、自定义UserDetailsService

package com.zit;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;

public class CustomUserService implements UserDetailsService {
    @Autowired
    SysUserRepository userRepository;
    @Override
    public UserDetails loadUserByUsername(String s) throws UsernameNotFoundException {
        SysUser user = userRepository.findByUsername(s);
        if (user == null) {
            throw new UsernameNotFoundException("用户名不存在");
        }
        System.out.println("s:"+s);
        System.out.println("username:"+user.getUsername()+";password:"+user.getPassword());
        return user;
    }
}

5、SpringMVC配置

package com.zit;

import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;

@Configuration
public class WebMvcConfig extends WebMvcConfigurerAdapter {
    @Override
    public void addViewControllers(ViewControllerRegistry registry) {
        registry.addViewController("/login").setViewName("login");
    }
}

当用户访问login时跳转到login.html页面

6、配置Spring Security

由于Spring Security5必须自定义密码加密，所以建立一个自定义密码加密类

（1）MyPasswordEncoder.java

package com.zit;

import org.springframework.security.crypto.password.PasswordEncoder;

public class MyPasswordEncoder implements PasswordEncoder {

    @Override
    public String encode(CharSequence arg0) {
        return arg0.toString();
    }

    @Override
    public boolean matches(CharSequence arg0, String arg1) {
        return arg1.equals(arg0.toString());
    }

}

（2）Security配置

package com.zit;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.core.userdetails.UserDetailsService;

@Configuration
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
    @Bean
    UserDetailsService customUserService() {
        return new CustomUserService();
    }

    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(customUserService())
        .passwordEncoder(new MyPasswordEncoder());
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.authorizeRequests()
            //security允许页面加载css文件夹下的静态资源
            .antMatchers("/css/**").permitAll()
                .anyRequest().authenticated()
                .and().formLogin().loginPage("/login").failureUrl("/login?error").permitAll()
                .and()
                .logout()
                .permitAll();
    }
}

1.首先当我们要自定义Spring Security的时候我们需要继承自WebSecurityConfigurerAdapter来完成，相关配置重写对应 方法即可。 
2.我们在这里注册CustomUserService的Bean，然后通过重写configure方法添加我们自定义的认证方式。 
3.在configure(HttpSecurity http)方法中，我们设置了登录页面，而且登录页面任何人都可以访问，然后设置了登录失败地址，也设置了注销请求，注销请求也是任何人都可以访问的。 
4.permitAll表示该请求任何人都可以访问，.anyRequest().authenticated(),表示其他的请求都必须要有权限认证。

7、静态资源

（1）CSS

下载bootstrap包，取其bootstrap.min.css

另，自己写一个signin.css，如下：

body {
    padding-top: 40px;
    padding-bottom: 40px;
    background-color: #eee;
}

.form-signin {
    max-width: 330px;
    padding: 15px;
    margin:  auto;
}
.form-signin .form-signin-heading,
.form-signin .checkbox {
    margin-bottom: 10px;
}
.form-signin .checkbox {
    font-weight: normal;
}
.form-signin .form-control {
    position: relative;
    height: auto;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    padding: 10px;
    font-size: 16px;
}
.form-signin .form-control:focus {
    z-index: ;
}
.form-signin input[type="email"] {
    margin-bottom: -1px;
    border-bottom-right-radius: ;
    border-bottom-left-radius: ;
}
.form-signin input[type="password"] {
    margin-bottom: 10px;
    border-top-left-radius: ;
    border-top-right-radius: ;
}

（2）HTML

login.html

<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8"/>
    <title>登录</title>
    <link rel="stylesheet" th:href="@{css/bootstrap.min.css}"/>
    <link rel="stylesheet" th:href="@{css/signin.css}"/>
    <style type="text/css">
        body {
            padding-top: 50px;
        }
        .starter-template {
            padding: 40px 15px;
            text-align: center;
        }
    </style>
</head>
<body>
<nav class="navbar navbar-inverse navbar-fixed-top">
    <div class="container">
        <div class="navbar-header">
            <a class="navbar-brand" href="#">Spring Security演示</a>
        </div>
        <div id="navbar" class="collapse navbar-collapse">
            <ul class="nav navbar-nav">
                <li><a th:href="@{/}">首页</a></li>
                <li><a th:href="@{http://www.baidu.com}">百度</a></li>
            </ul>
        </div>
    </div>
</nav>
<div class="container">
    <div class="starter-template">
        <p th:if="${param.logout}" class="bg-warning">已注销</p>
        <p th:if="${param.error}" class="bg-danger">有错误，请重试</p>
        <h2>使用账号密码登录</h2>
        <form class="form-signin" role="form" name="form" th:action="@{/login}" action="/login" method="post">
            <div class="form-group">
                <label for="username">账号</label>
                <input type="text" class="form-control" name="username" value="" placeholder="账号"/>
            </div>
            <div class="form-group">
                <label for="password">密码</label>
                <input type="password" class="form-control" name="password" placeholder="密码"/>
            </div>
            <input type="submit" id="login" value="Login" class="btn btn-primary"/>
        </form>
    </div>
</div>

</body>
</html>

index.html

<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org"
      xmlns:sec="http://www.thymeleaf.org/thymeleaf-extras-springsecurity4">
<head>
    <meta charset="UTF-8"/>
    <title sec:authentication="name"></title>
    <link rel="stylesheet" th:href="@{css/bootstrap.min.css}"/>
    <style type="text/css">
        body {
            padding-top: 50px;
        }
        .starter-template {
            padding: 40px 15px;
            text-align: center;
        }
    </style>
</head>
<body>
<nav class="navbar navbar-inverse navbar-fixed-top">
    <div class="container">
        <div class="navbar-header">
            <a class="navbar-brand" href="#">Spring Security演示</a>
        </div>
        <div id="navbar" class="collapse navbar-collapse">
            <ul class="nav navbar-nav">
                <li><a th:href="@{/}">首页</a></li>
                <li><a th:href="@{http://www.baidu.com}">百度</a></li>
            </ul>
        </div>
    </div>
</nav>
<div class="container">
    <div class="starter-template">
        <h1 th:text="${msg.title}"></h1>
        <p class="bg-primary" th:text="${msg.content}"></p>
        <div sec:authorize="hasRole('ROLE_ADMIN')">
            <p class="bg-info" th:text="${msg.extraInfo}"></p>
        </div>
        <div sec:authorize="hasRole('ROLE_USER')">
            <p class="bg-info">无更多显示信息</p>
        </div>
        <form th:action="@{/logout}" method="post">
            <input type="submit" class="btn btn-primary" value="注销"/>
        </form>
    </div>
</div>
</body>
</html>