SpringBoot使用Security认证框架（1.加类）

前言：

本文章包含Security的认证和授权方法

并且在执行Security之前会执行自已编写的PowerFilter过滤器

而且登录信息会存入Redis，也会从Redis取

本文章只是加各种根据类

使用方法前往：https://cloud.tencent.com/developer/article/2311117

需要注意：

1. SecurityConfig，45行需要改成你的登录接口地址
2. LoginUser，需要改动一些东西，注意看注释
3. PowerFilter，为自已的拦截器，在执行Security之前会执行自已编写的PowerFilter过滤器，可以按需改动，也可不动
4. 一个个加类过程中，如果那个类里面报错了，不用管，先加完所有类。
5. 加完后，在看报错的类，不出意外都是引入的包是我的com.zb报的错，改成你的包

依赖

代码语言：javascript复制

<dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
        </dependency>
<dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.33</version>
        </dependency>
<dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
        </dependency>
<dependency>
            <groupId>io.jsonwebtoken</groupId>
            <artifactId>jjwt</artifactId>
            <version>0.9.0</version>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.10</version>
        </dependency>

---

需要的工具类

新建config包，第一部分开始

FastJsonRedisSerializer

代码语言：javascript复制

package com.zb.config;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.parser.ParserConfig;
import com.alibaba.fastjson.serializer.SerializerFeature;
import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.type.TypeFactory;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.data.redis.serializer.SerializationException;

import java.nio.charset.Charset;

/**
 * Redis使用FastJson序列化
 *
 * @author sg
 */
public class FastJsonRedisSerializer<T> implements RedisSerializer<T>
{

    public static final Charset DEFAULT_CHARSET = Charset.forName("UTF-8");

    private Class<T> clazz;

    static
    {
        ParserConfig.getGlobalInstance().setAutoTypeSupport(true);
    }

    public FastJsonRedisSerializer(Class<T> clazz)
    {
        super();
        this.clazz = clazz;
    }

    @Override
    public byte[] serialize(T t) throws SerializationException
    {
        if (t == null)
        {
            return new byte[0];
        }
        return JSON.toJSONString(t, SerializerFeature.WriteClassName).getBytes(DEFAULT_CHARSET);
    }

    @Override
    public T deserialize(byte[] bytes) throws SerializationException
    {
        if (bytes == null || bytes.length <= 0)
        {
            return null;
        }
        String str = new String(bytes, DEFAULT_CHARSET);

        return JSON.parseObject(str, clazz);
    }


    protected JavaType getJavaType(Class<?> clazz)
    {
        return TypeFactory.defaultInstance().constructType(clazz);
    }
}

---

JwtUtil

代码语言：javascript复制

package com.zb.config;

import io.jsonwebtoken.Claims;
import io.jsonwebtoken.JwtBuilder;
import io.jsonwebtoken.Jwts;
import io.jsonwebtoken.SignatureAlgorithm;

import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
import java.util.Base64;
import java.util.Date;
import java.util.UUID;

/**
 * JWT工具类
 */
public class JwtUtil {

    //有效期为
    public static final Long JWT_TTL = 60 * 60 *1000L;// 60 * 60 *1000  一个小时
    //设置秘钥明文
    public static final String JWT_KEY = "abcd";

    public static String getUUID(){
        String token = UUID.randomUUID().toString().replaceAll("-", "");
        return token;
    }
    
    /**
     * 生成jtw
     * @param subject token中要存放的数据（json格式）
     * @return
     */
    public static String createJWT(String subject) {
        JwtBuilder builder = getJwtBuilder(subject, null, getUUID());// 设置过期时间
        return builder.compact();
    }

    /**
     * 生成jtw
     * @param subject token中要存放的数据（json格式）
     * @param ttlMillis token超时时间
     * @return
     */
    public static String createJWT(String subject, Long ttlMillis) {
        JwtBuilder builder = getJwtBuilder(subject, ttlMillis, getUUID());// 设置过期时间
        return builder.compact();
    }

    private static JwtBuilder getJwtBuilder(String subject, Long ttlMillis, String uuid) {
        SignatureAlgorithm signatureAlgorithm = SignatureAlgorithm.HS256;
        SecretKey secretKey = generalKey();
        long nowMillis = System.currentTimeMillis();
        Date now = new Date(nowMillis);
        if(ttlMillis==null){
            ttlMillis=JwtUtil.JWT_TTL;
        }
        long expMillis = nowMillis   ttlMillis;
        Date expDate = new Date(expMillis);
        return Jwts.builder()
                .setId(uuid)              //唯一的ID
                .setSubject(subject)   // 主题  可以是JSON数据
                .setIssuer("sg")     // 签发者
                .setIssuedAt(now)      // 签发时间
                .signWith(signatureAlgorithm, secretKey) //使用HS256对称加密算法签名, 第二个参数为秘钥
                .setExpiration(expDate);
    }

    /**
     * 创建token
     * @param id
     * @param subject
     * @param ttlMillis
     * @return
     */
    public static String createJWT(String id, String subject, Long ttlMillis) {
        JwtBuilder builder = getJwtBuilder(subject, ttlMillis, id);// 设置过期时间
        return builder.compact();
    }

    /**
     * 生成加密后的秘钥 secretKey
     * @return
     */
    public static SecretKey generalKey() {
        byte[] encodedKey = Base64.getDecoder().decode(JwtUtil.JWT_KEY);
        SecretKey key = new SecretKeySpec(encodedKey, 0, encodedKey.length, "AES");
        return key;
    }
    
    /**
     * 解析
     *
     * @param jwt
     * @return
     * @throws Exception
     */
    public static Claims parseJWT(String jwt) throws Exception {
        SecretKey secretKey = generalKey();
        return Jwts.parser()
                .setSigningKey(secretKey)
                .parseClaimsJws(jwt)
                .getBody();
    }


}

---

RedisConfig

代码语言：javascript复制

package com.zb.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.StringRedisSerializer;

@Configuration
public class RedisConfig {

    @Bean
    @SuppressWarnings(value = { "unchecked", "rawtypes" })
    public RedisTemplate<Object, Object> redisTemplate(RedisConnectionFactory connectionFactory)
    {
        RedisTemplate<Object, Object> template = new RedisTemplate<>();
        template.setConnectionFactory(connectionFactory);

        FastJsonRedisSerializer serializer = new FastJsonRedisSerializer(Object.class);

        // 使用StringRedisSerializer来序列化和反序列化redis的key值
        template.setKeySerializer(new StringRedisSerializer());
        template.setValueSerializer(serializer);

        // Hash的key也采用StringRedisSerializer的序列化方式
        template.setHashKeySerializer(new StringRedisSerializer());
        template.setHashValueSerializer(serializer);


        template.afterPropertiesSet();
        return template;
    }
}

---

SecurityConfig，45行需要改成你的登录接口地址

代码语言：javascript复制

import com.zb.filters.PowerFilter;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.web.AuthenticationEntryPoint;
import org.springframework.security.web.access.AccessDeniedHandler;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;

@Configuration
@EnableGlobalMethodSecurity(prePostEnabled = true)
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    @Bean
    public BCryptPasswordEncoder cryptPasswordEncoder() {
        return new BCryptPasswordEncoder();
    }

    @Autowired
    private PowerFilter powerFilter;

    @Autowired
    private AuthenticationEntryPoint authenticationEntryPoint;

    @Autowired
    private AccessDeniedHandler accessDeniedHandler;

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
                //关闭csrf
                .csrf().disable()
                //不通过Session获取SecurityContext
                .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS)
                .and()
                .authorizeRequests()
                // 对于登录接口 允许匿名访问（需要改成你的登录接口地址）
                .antMatchers("/user/login/**").anonymous()
                // 除上面外的所有请求全部需要鉴权认证
                .anyRequest().authenticated();
        //将用户开发的过滤器添加到用户登陆之前的过滤器上
        http.addFilterBefore(powerFilter, UsernamePasswordAuthenticationFilter.class);
        //添加自定义异常处理
        http.exceptionHandling().authenticationEntryPoint(authenticationEntryPoint).accessDeniedHandler(accessDeniedHandler);
    }

    @Bean
    public AuthenticationManager createAuthenticationManager() throws Exception {
        return super.authenticationManagerBean();
    }

}

---

WebUtils

代码语言：javascript复制

package com.zb.config;

import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

public class WebUtils
{
    /**
     * 自定义返回没有认证和授权信息用的
     * 将字符串渲染到客户端
     * 
     * @param response 渲染对象
     * @param string 待渲染的字符串
     * @return null
     */
    public static String renderString(HttpServletResponse response, String string) {
        try
        {
            response.setStatus(200);
            response.setContentType("application/json");
            response.setCharacterEncoding("utf-8");
            response.getWriter().print(string);
        }
        catch (IOException e)
        {
            e.printStackTrace();
        }
        return null;
    }
}

config包结束，第一部分结束

---

entity包，第二部分开始

LoginUser，需要改动一些东西，注意看注释

代码语言：javascript复制

package com.zb.entity;

import com.alibaba.fastjson.annotation.JSONField;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.UserDetails;

import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

@Data
@NoArgsConstructor
public class LoginUser implements UserDetails {

    //登录信息实体类，换成你的
    private User user;
    //存放查出来的用户有的权限
    private List<String> powers;
    //将用户信息和权限全放进去
    //User需要换成你的
    public LoginUser(User user, List<String> powers) {
        this.user = user;
        this.powers = powers;
    }

    @JSONField(serialize = false)
    private List<SimpleGrantedAuthority> authorities;

    @Override
    public Collection<? extends GrantedAuthority> getAuthorities() {
        if (authorities != null && authorities.size() > 0) {
            return authorities;
        }
        authorities = new ArrayList<>();
        for (String power : powers) {
            SimpleGrantedAuthority simpleGrantedAuthority = new SimpleGrantedAuthority(power);
            authorities.add(simpleGrantedAuthority);
        }
        return authorities;
    }

    //user.getPasswd()为获取密码，换成你的
    @Override
    public String getPassword() {
        return user.getPasswd();
    }

    //user.getNickName();为获取用户名，换成你的
    @Override
    public String getUsername() {
        return user.getNickName();
    }

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

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

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

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

entity包，第二部分结束

---

exception包，第三部分开始

AccessDeniedHandlerImpl

代码语言：javascript复制

package com.zb.exception;

import com.alibaba.fastjson.JSON;
import com.zb.config.WebUtils;
import org.springframework.http.HttpStatus;
import org.springframework.security.access.AccessDeniedException;
import org.springframework.security.web.access.AccessDeniedHandler;
import org.springframework.stereotype.Component;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

@Component
public class AccessDeniedHandlerImpl implements AccessDeniedHandler {
    @Override
    public void handle(HttpServletRequest request, HttpServletResponse response, AccessDeniedException accessDeniedException) throws IOException, ServletException {
        Map<String, Object> result = new HashMap<>();
        result.put("msg", "授权失败!");
        String json = JSON.toJSONString(result);
        WebUtils.renderString(response, json);
    }
}

---

AuthenticationEntryPointImpl

代码语言：javascript复制

package com.zb.exception;

import com.alibaba.fastjson.JSON;
import com.zb.config.WebUtils;
import org.springframework.http.HttpStatus;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.AuthenticationEntryPoint;
import org.springframework.stereotype.Component;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

@Component
public class AuthenticationEntryPointImpl implements AuthenticationEntryPoint {
    @Override
    public void commence(HttpServletRequest request, HttpServletResponse response,
                         AuthenticationException authException) throws IOException, ServletException {
        Map<String, Object> result = new HashMap<>();
        result.put("code", HttpStatus.UNAUTHORIZED);
        result.put("msg", "认证失败!");
        String json = JSON.toJSONString(result);
        WebUtils.renderString(response, json);

    }
}

---

exception包，第三部分结束

---

filters包，第四部分开始

PowerFilter，为自已的拦截器，在执行Security之前会执行自已编写的PowerFilter过滤器，可以按需改动，也可不动

代码语言：javascript复制

package com.zb.filters;

import com.alibaba.fastjson.JSON;
import com.zb.config.JwtUtil;
import com.zb.entity.LoginUser;
import io.jsonwebtoken.Claims;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.stereotype.Component;
import org.springframework.util.ObjectUtils;
import org.springframework.util.StringUtils;
import org.springframework.web.filter.OncePerRequestFilter;

import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@Component
public class PowerFilter extends OncePerRequestFilter {

    @Autowired
    private RedisTemplate redisTemplate;

    @Override
    protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) throws ServletException, IOException {
        String token = request.getHeader("token");
        //登陆接口放行
        if (!StringUtils.hasText(token)) {
            System.out.println("登陆接口放行...");
            filterChain.doFilter(request, response);
            return;
        }
        String username = "";
        try {//验证令牌的有效性
            Claims claims = JwtUtil.parseJWT(token);
            username = claims.getSubject();
        } catch (Exception e) {
            e.printStackTrace();
            throw new RuntimeException("认证失败！");
        }
        //从redis中获取用户信息
        Object obj = redisTemplate.boundValueOps("token:"   username).get();
        if (ObjectUtils.isEmpty(obj)) {
            throw new RuntimeException("认证失败！");
        }

        LoginUser loginUser = JSON.parseObject(obj.toString(), LoginUser.class);
        //登陆的用户存储到上下文中
        UsernamePasswordAuthenticationToken usernamePasswordAuthenticationToken = new UsernamePasswordAuthenticationToken(loginUser, null, loginUser.getAuthorities());
        SecurityContextHolder.getContext().setAuthentication(usernamePasswordAuthenticationToken);
        //转发到下一过滤器或者是控制器
        filterChain.doFilter(request, response);
    }
}

filters包，第四部分开始

至此，所有工具包结束

使用方法前往：https://cloud.tencent.com/developer/article/2311117

import security 登录 接口 框架

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