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springboot+springsecurity+mybatis+JWT+Redis 实现前后端离实战教程

 更新时间：2024年01月22日 10:15:59   作者：一点点前进的小郑  
这篇文章主要介绍了springboot+springsecurity+mybatis+JWT+Redis 实现前后端离实战教程,需要的朋友可以参考下

写在开头：这篇是实战篇，即默认各位看官具备相应的基础

一、springboot

1.新建项目

  我是用idea，jdk选择1.8以上

 各个名字自行命名

添加部分依赖，后面再往pom.xml加入（这里忘记改了，springboot的版本我使用的是1.5.3release版本！）

简单的项目搭建好了，下一步

2.application.yml的配置

数据源

spring:
  datasource:
    username: root
    password: 123456
    url: jdbc:mysql://localhost/springboot?characterEncoding=utf-8&useSSl=false
    driver-class-name: com.mysql.jdbc.Driver

数据池用了druid，pom.xml加入依赖

<!-- druid数据库连接池 -->
<dependency>
   <groupId>com.alibaba</groupId>
   <artifactId>druid</artifactId>
   <version>1.1.8</version>
</dependency>

添加mabatis、druid，完整配置：

spring:
  datasource:
    username: root
    password: 123456
    url: jdbc:mysql://localhost/springboot?characterEncoding=utf-8&useSSl=false
    driver-class-name: com.mysql.jdbc.Driver
    type: com.alibaba.druid.pool.DruidDataSource
    #监控统计拦截的filters
    filters: stat,wall,log4j
    #druid配置
    #配置初始化大小/最小/最大
    initialSize: 5
    minIdle: 5
    maxActive: 20
    #获取连接等待超时时间
    maxWait: 60000
    #间隔多久进行一次检测，检测需要关闭的空闲连接
    timeBetweenEvictionRunsMillis: 60000
    #一个连接在池中最小生存的时间
    minEvictableIdleTimeMillis: 300000
    validationQuery: SELECT 1 FROM DUAL
    testWhileIdle: true
    testOnBorrow: false
    testOnReturn: false
    #打开PSCache，并指定每个连接上PSCache的大小。oracle设为true，mysql设为false。分库分表较多推荐设置为false
    poolPreparedStatements: false
    maxPoolPreparedStatementPerConnectionSize: 20
    # 通过connectProperties属性来打开mergeSql功能；慢SQL记录
    connectionProperties:
      druid:
        stat:
          mergeSql: true
          slowSqlMillis: 5000
#mybatis是独立节点，需要单独配置
mybatis:
  mapper-locations: classpath*:mapper/*.xml
  type-aliases-package: com.deceen.demo.entity
  configuration:
    map-underscore-to-camel-case: true

3.写一个小demo

controller层

package com.deceen.demo.controller;
import com.deceen.demo.entity.DemoEntity;
import com.deceen.demo.service.DemoService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import java.util.List;
/**
 * @author: zzx
 * @date: 2018/10/25 16:48
 * @description: demo
 */
@RestController
@RequestMapping("/test")
public class DemoController {
    @Autowired
    private DemoService orderService;
    @RequestMapping("/getUser")
    public List<DemoEntity> getUser(){
        List<DemoEntity> result = orderService.getUser();
        return result;
    }
}

service层

package com.deceen.demo.service;
import com.deceen.demo.entity.DemoEntity;
import java.util.List;
/**
 * @author: zzx
 * @date: 2018/10/25 17:00
 * @description:
 */
public interface DemoService {
    List<DemoEntity> getUser();
}

impl

package com.deceen.demo.service.impl;
import com.deceen.demo.dao.DemoMapper;
import com.deceen.demo.entity.DemoEntity;
import com.deceen.demo.service.DemoService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
/**
 * @author: zzx
 * @date: 2018/10/25 17:03
 * @description:
 */
@Service
public class DemoServiceImpl implements DemoService {
    @Autowired
    private DemoMapper demoMapper;
    @Override
    public List<DemoEntity> getUser() {
        return demoMapper.getUser();
    }
}

dao

package com.deceen.demo.dao;
import com.deceen.demo.entity.DemoEntity;
import org.springframework.stereotype.Component;
import java.util.List;
/**
 * @author: zzx
 * @date: 2018/10/25 17:05
 * @description:
 */
@Component
public interface DemoMapper {
    List<DemoEntity> getUser();
}

entity

package com.deceen.demo.entity;
import lombok.Data;
/**
 * @author: zzx
 * @date: 2018/10/25 17:01
 * @description:
 */
@Data
public class DemoEntity {
    private Integer id;
    private Integer age;
    private String name;
    private Float height;
}

这里介绍一下lombok，感觉蛮好用的一个插件，DemoEntity这个类中的@Data注解就是其一，可以自动生成getset方法（编译的时候），后面也会用到。教程：https://www.jb51.net/article/214041.htm

mapper.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="com.deceen.demo.dao.DemoMapper">
    <select id="getUser" resultType="com.deceen.demo.entity.DemoEntity">
        SELECT * FROM girl
    </select>
</mapper>

（相关的数据库自己随便建，跟DemoEntity字段对上就好了。。。）

访问http://localhost:8080/test/getUser

成功

二、druid

上文提到druid，其实尚未真正可以使用，下面我们继续

1.druid参数配置

package com.deceen.common.config;
import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.druid.support.http.StatViewServlet;
import com.alibaba.druid.support.http.WebStatFilter;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
import javax.sql.DataSource;
/**
 * druid参数配置
 * @author zzx
 * @date 2018/10/15 10:09
 */
@Configuration
@PropertySource(value = "classpath:application.yml")
public class DruidConfiguration {
    /**
     * @author zzx
     * @date 2018-10-15 11:28
     * @todo 数据源配置
    */
    @Bean(destroyMethod = "close", initMethod = "init")
    @ConfigurationProperties(prefix = "spring.datasource")
    public DataSource druidDataSource() {
        DruidDataSource druidDataSource = new DruidDataSource();
        return druidDataSource;
    }
    /**
     * druid
     * 注册一个StatViewServlet
     * @return
     */
    @Bean
    public ServletRegistrationBean druidStatViewServlet(){
        //org.springframework.boot.context.embedded.ServletRegistrationBean提供类的进行注册.
        ServletRegistrationBean servletRegistrationBean = new ServletRegistrationBean(new StatViewServlet(),"/druid/*");
        //添加初始化参数：initParams
        //白名单：
        servletRegistrationBean.addInitParameter("allow","127.0.0.1");
        //IP黑名单 (存在共同时，deny优先于allow) : 如果满足deny的话提示:Sorry, you are not permitted to view this page.
        //servletRegistrationBean.addInitParameter("deny","192.168.1.73");
        //登录查看信息的账号密码.
        servletRegistrationBean.addInitParameter("loginUsername","admin");
        servletRegistrationBean.addInitParameter("loginPassword","123456");
        //是否能够重置数据.
        servletRegistrationBean.addInitParameter("resetEnable","false");
        return servletRegistrationBean;
    }
    /**
     * druid过滤器
     * 注册一个：filterRegistrationBean
     * @return
     */
    @Bean
    public FilterRegistrationBean druidStatFilter(){
        FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean(new WebStatFilter());
        //添加过滤规则.
        filterRegistrationBean.addUrlPatterns("/*");
        //添加不需要忽略的格式信息.
        filterRegistrationBean.addInitParameter("exclusions","*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*");
        return filterRegistrationBean;
    }
}

访问http://localhost:8080/druid/login.html，账号密码为上面代码设置的

成功

三、springsecurity

1.引入相关依赖

<!-- Spring Security -->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-security</artifactId>
</dependency>
<!-- fastjson -->
<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>fastjson</artifactId>
    <version>1.2.36</version>
</dependency>

2.写了几个工具类

ResultEnum

package com.deceen.common.Enums;
import lombok.Getter;
/**
 * @author: zzx
 * @date: 2018/10/15 15:16
 * @description: 返回的错误码枚举类
 */
@Getter
public enum ResultEnum {
    SUCCESS(101,"成功"),
    FAILURE(102,"失败"),
    USER_NEED_AUTHORITIES(201,"用户未登录"),
    USER_LOGIN_FAILED(202,"用户账号或密码错误"),
    USER_LOGIN_SUCCESS(203,"用户登录成功"),
    USER_NO_ACCESS(204,"用户无权访问"),
    USER_LOGOUT_SUCCESS(205,"用户登出成功"),
    TOKEN_IS_BLACKLIST(206,"此token为黑名单"),
    LOGIN_IS_OVERDUE(207,"登录已失效"),
    ;
    private Integer code;
    private String message;
    ResultEnum(Integer code, String message) {
        this.code = code;
        this.message = message;
    }
    /**
     * @author: zzx
     * @date: 2018-10-15 16:26
     * @deprecation:通过code返回枚举
    */
    public static ResultEnum parse(int code){
        ResultEnum[] values = values();
        for (ResultEnum value : values) {
            if(value.getCode() == code){
                return value;
            }
        }
        throw  new RuntimeException("Unknown code of ResultEnum");
    }
}

ResultVO

package com.deceen.common.VO;
import com.deceen.common.Enums.ResultEnum;
import java.io.Serializable;
import java.util.HashMap;
import java.util.Map;
/**
 * @author: zzx
 * @date: 2018/10/15 15:00
 * @description: 返回的格式
 */
public final class ResultVO implements Serializable {
   private static final long serialVersionUID = 1725159680599612404L;
   /**
    * 返回msg，object，以及token
    * 返回的code为默认
    * @param message
    * @param data
    * @param jwtToken
    * @return
    */
   public final static  Map<String, Object> success(String message, Object data,String jwtToken,Boolean success) {
      Map<String, Object> map = new HashMap<>();
      map.put("jwtToken",jwtToken);
      map.put("code", ResultEnum.SUCCESS.getCode());
      map.put("message", message);
      map.put("success",success);
      map.put("data", data);
      return map;
   }
   /**
    * 返回object，以及token
    * 返回的msg，code为默认
    * @param data
    * @param jwtToken
    * @return
    */
   public final static  Map<String, Object> success(Object data,String jwtToken) {
      Map<String, Object> map = new HashMap<String, Object>();
      map.put("jwtToken",jwtToken);
      map.put("code", ResultEnum.SUCCESS.getCode());
      map.put("message", ResultEnum.SUCCESS.getMessage());
      map.put("data", data);
      map.put("success",true);
      return map;
   }
   /**
    * 返回默认的信息
    * @return
    */
   public final static  Map<String, Object> success() {
      Map<String, Object> map = new HashMap<String, Object>();
      map.put("jwtToken",null);
      map.put("code", ResultEnum.SUCCESS.getCode());
      map.put("message", ResultEnum.SUCCESS.getMessage());
      map.put("data", null);
      map.put("success",true);
      return map;
   }
   public final static  Map<String, Object> failure(int code, String message,Object data) {
      Map<String, Object> map = new HashMap<String, Object>();
      map.put("code", code);
      map.put("message", message);
      map.put("data", data);
      map.put("success",false);
      return map;
   }
   public final static  Map<String, Object> failure(int code, String message) {
      Map<String, Object> map = new HashMap<String, Object>();
      map.put("code", code);
      map.put("message", message);
      map.put("data", null);
      map.put("success",false);
      return map;
   }
   public final static  Map<String, Object> failure(ResultEnum respCode, Object data, Boolean success) {
      return getStringObjectMap(respCode, data,success);
   }
   public final static  Map<String, Object> failure(ResultEnum respCode, Boolean success) {
      return getStringObjectMap(respCode,success);
   }
   /*
   * 成功返回特定的状态码和信息
   * */
   public final static  Map<String, Object> result(ResultEnum respCode, Object data, Boolean success) {
      return getStringObjectMap(respCode, data,success);
   }
   private static  Map<String, Object> getStringObjectMap(ResultEnum respCode, Object data, Boolean success) {
      Map<String, Object> map = new HashMap<String, Object>();
      map.put("code", respCode.getCode());
      map.put("message", respCode.getMessage());
      map.put("data", data);
      map.put("success",success);
      return map;
   }
   /*
    * 成功返回特定的状态码和信息
    * */
   public final static  Map<String, Object> result(ResultEnum respCode, Boolean success) {
      return getStringObjectMap(respCode,success);
   }
   private static Map<String, Object> getStringObjectMap(ResultEnum respCode, Boolean success) {
      Map<String, Object> map = new HashMap<String, Object>();
      map.put("code", respCode.getCode());
      map.put("message", respCode.getMessage());
      map.put("data", null);
      map.put("success",success);
      return map;
   }
   /*
    * 成功返回特定的状态码和信息
    * */
   public final static Map<String, Object> result(ResultEnum respCode, String jwtToken, Boolean success) {
      Map<String, Object> map = new HashMap<String, Object>();
      map.put("jwtToken",jwtToken);
      map.put("code", respCode.getCode());
      map.put("message", respCode.getMessage());
      map.put("data", null);
      map.put("success",success);
      return map;
   }
}

可以看出来，我们后面是会集成jwt的token过来的，看得懂就行，后面根据需要改

下面就是springsecurity核心几个东西啦，具体我还没深入，等后面有时间再写一篇深入一点的（大体分析一下shiro和springsecurity吧。。。）

3.实现springsecurity各个核心接口，处理用户各种状态

实现AuthenticationEntryPoint接口，处理用户未登录

package com.deceen.common.security;
import com.alibaba.fastjson.JSON;
import com.deceen.common.Enums.ResultEnum;
import com.deceen.common.VO.ResultVO;
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;
/**
 * @author: zzx
 * @date: 2018/10/15 15:04
 * @description: 用户未登录时返回给前端的数据
 */
@Component
public class AjaxAuthenticationEntryPoint implements AuthenticationEntryPoint {
    @Override
    public void commence(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, AuthenticationException e) throws IOException, ServletException {
        httpServletResponse.getWriter().write(JSON.toJSONString(ResultVO.result(ResultEnum.USER_NEED_AUTHORITIES,false)));
    }
}

实现AccessDeniedHandler接口，处理无权登录的情况

package com.deceen.common.security;
import com.alibaba.fastjson.JSON;
import com.deceen.common.Enums.ResultEnum;
import com.deceen.common.VO.ResultVO;
import com.deceen.rehab.user.entity.SelfUserDetails;
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;
/**
 * @author: zzx
 * @date: 2018/10/15 16:43
 * @description: 无权访问
 */
@Component
public class AjaxAccessDeniedHandler implements AccessDeniedHandler {
    @Override
    public void handle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, AccessDeniedException e) throws IOException, ServletException {
        httpServletResponse.getWriter().write(JSON.toJSONString(ResultVO.result(ResultEnum.USER_NO_ACCESS,false)));
    }
}

实现AuthenticationFailureHandler接口，处理用户登录失败

package com.deceen.common.security;
import com.alibaba.fastjson.JSON;
import com.deceen.common.Enums.ResultEnum;
import com.deceen.common.VO.ResultVO;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.authentication.AuthenticationFailureHandler;
import org.springframework.stereotype.Component;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
/**
 * @author: zzx
 * @date: 2018/10/15 15:31
 * @description: 用户登录失败时返回给前端的数据
 */
@Component
public class AjaxAuthenticationFailureHandler implements AuthenticationFailureHandler {
    @Override
    public void onAuthenticationFailure(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, AuthenticationException e) throws IOException, ServletException {
        httpServletResponse.getWriter().write(JSON.toJSONString(ResultVO.result(ResultEnum.USER_LOGIN_FAILED,false)));
    }
}

实现AuthenticationSuccessHandler接口，处理登录成功的情况

package com.deceen.common.security;
import com.alibaba.fastjson.JSON;
import com.deceen.common.Enums.ResultEnum;
import com.deceen.common.VO.ResultVO;
import org.springframework.security.core.Authentication;
import org.springframework.security.web.authentication.AuthenticationSuccessHandler;
import org.springframework.stereotype.Component;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
/**
 * @author: zzx
 * @date: 2018/10/15 16:12
 * @description: 用户登录成功时返回给前端的数据
 */
@Component
public class AjaxAuthenticationSuccessHandler implements AuthenticationSuccessHandler {
    @Override
    public void onAuthenticationSuccess(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Authentication authentication) throws IOException, ServletException {
        SelfUserDetails userDetails = (SelfUserDetails) authentication.getPrincipal();
        String jwtToken = JwtTokenUtil.generateToken(userDetails.getUsername(), 1500);
        httpServletResponse.getWriter().write(JSON.toJSONString(ResultVO.result(ResultEnum.USER_LOGIN_SUCCESS,jwtToken,true)));
    }
}

实现LogoutSuccessHandler接口，处理退出成功

package com.deceen.common.security;
import com.alibaba.fastjson.JSON;
import com.deceen.common.Enums.ResultEnum;
import com.deceen.common.VO.ResultVO;
import org.springframework.security.core.Authentication;
import org.springframework.security.web.authentication.logout.LogoutSuccessHandler;
import org.springframework.stereotype.Component;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
/**
 * @author: zzx
 * @date: 2018/10/16 9:59
 * @description: 登出成功
 */
@Component
public class AjaxLogoutSuccessHandler implements LogoutSuccessHandler {
    @Override
    public void onLogoutSuccess(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Authentication authentication) throws IOException, ServletException {
        httpServletResponse.getWriter().write(JSON.toJSONString(ResultVO.result(ResultEnum.USER_LOGOUT_SUCCESS,true)));
    }
}

实现UserDetails实现自定义对象

package com.deceen.demo.entity;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.userdetails.UserDetails;
import java.io.Serializable;
import java.util.Collection;
import java.util.Set;
/**
 * @author: zzx
 * @date: 2018/10/15 16:58
 * @description: 定义user对象
 */
public class SelfUserDetails implements UserDetails, Serializable {
    private static final long serialVersionUID = 7171722954972237961L;
    private Integer id;
    private String username;
    private String password;
    private Set<? extends GrantedAuthority> authorities;
    @Override
    public Collection<? extends GrantedAuthority> getAuthorities() {
        return this.authorities;
    }
    public void setAuthorities(Set<? extends GrantedAuthority> authorities) {
        this.authorities = authorities;
    }
    @Override
    public String getPassword() { // 最重点Ⅰ
        return this.password;
    }
    @Override
    public String getUsername() { // 最重点Ⅱ
        return this.username;
    }
    public void setUsername(String username) {
        this.username = username;
    }
    public void setPassword(String password) {
        this.password = password;
    }
    //账号是否过期
    @Override
    public boolean isAccountNonExpired() {
        return true;
    }
    //账号是否锁定
    @Override
    public boolean isAccountNonLocked() {
        return true;
    }
    //账号凭证是否未过期
    @Override
    public boolean isCredentialsNonExpired() {
        return true;
    }
    @Override
    public boolean isEnabled() {
        return true;
    }
    public Integer getId() {
        return id;
    }
    public void setId(Integer id) {
        this.id = id;
    }
}

2.权限访问控制

package com.deceen.common.security;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.stereotype.Component;
import org.springframework.util.AntPathMatcher;
import javax.servlet.http.HttpServletRequest;
import java.util.HashSet;
import java.util.Set;
/**
 * @author: zzx
 * @date: 2018/10/16 9:54
 * @description: 权限访问控制
 */
@Component("rbacauthorityservice")
public class RbacAuthorityService {
    public boolean hasPermission(HttpServletRequest request, Authentication authentication) {
        Object userInfo = authentication.getPrincipal();
        boolean hasPermission  = false;
        if (userInfo instanceof UserDetails) {
            String username = ((UserDetails) userInfo).getUsername();
            //获取资源
            Set<String> urls = new HashSet();
            // 这些 url 都是要登录后才能访问，且其他的 url 都不能访问！
            urls.add("/demo/**");//application.yml里设置了项目路径，百度一下我就不贴了
            Set set2 = new HashSet();
            Set set3 = new HashSet();
            AntPathMatcher antPathMatcher = new AntPathMatcher();
            for (String url : urls) {
                if (antPathMatcher.match(url, request.getRequestURI())) {
                    hasPermission = true;
                    break;
                }
            }
            return hasPermission;
        } else {
            return false;
        }
    }
}

这里提示一下啊，url记得改

3.jwt生成token的工具类

引入依赖

<!--JWT-->
<dependency>
	<groupId>io.jsonwebtoken</groupId>
	<artifactId>jjwt</artifactId>
	<version>0.9.0</version>
</dependency>

工具类

package com.deceen.common.utils;
import io.jsonwebtoken.Claims;
import io.jsonwebtoken.Jwts;
import io.jsonwebtoken.SignatureAlgorithm;
import java.io.InputStream;
import java.security.KeyStore;
import java.security.PrivateKey;
import java.security.PublicKey;
import java.util.Date;
import java.util.Map;
/**
 * @author: zzx
 * @date: 2018/10/16 9:06
 * @description: jwt生成token
 */
public class JwtTokenUtil {
    // 寻找证书文件
    private static InputStream inputStream = Thread.currentThread().getContextClassLoader().getResourceAsStream("jwt.jks"); // 寻找证书文件
    private static PrivateKey privateKey = null;
    private static PublicKey publicKey = null;
    static { // 将证书文件里边的私钥公钥拿出来
        try {
            KeyStore keyStore = KeyStore.getInstance("JKS"); // java key store 固定常量
            keyStore.load(inputStream, "123456".toCharArray());
            privateKey = (PrivateKey) keyStore.getKey("jwt", "123456".toCharArray()); // jwt 为 命令生成整数文件时的别名
            publicKey = keyStore.getCertificate("jwt").getPublicKey();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    /**
     * 生成token
     * @param subject （主体信息）
     * @param expirationSeconds 过期时间（秒）
     * @param claims 自定义身份信息
     * @return
     */
    public static String generateToken(String subject, int expirationSeconds, Map<String,Object> claims) {
        return Jwts.builder()
                .setClaims(claims)
                .setSubject(subject)
                .setExpiration(new Date(System.currentTimeMillis() + expirationSeconds * 1000))
//                .signWith(SignatureAlgorithm.HS512, salt) // 不使用公钥私钥
                .signWith(SignatureAlgorithm.RS256, privateKey)
                .compact();
    }
    /**
     * @author: zzx
     * @date: 2018-10-19 09:10
     * @deprecation: 解析token,获得subject中的信息
    */
    public static String parseToken(String token, String salt) {
        String subject = null;
        try {
            /*Claims claims = Jwts.parser()
//                    .setSigningKey(salt) // 不使用公钥私钥
                    .setSigningKey(publicKey)
                    .parseClaimsJws(token).getBody();*/
            subject = getTokenBody(token).getSubject();
        } catch (Exception e) {
        }
        return subject;
    }
    //获取token自定义属性
    public static Map<String,Object> getClaims(String token){
        Map<String,Object> claims = null;
        try {
            claims = getTokenBody(token);
        }catch (Exception e) {
        }
        return claims;
    }
    // 是否已过期
    public static boolean isExpiration(String token){
        return getTokenBody(token).getExpiration().before(new Date());
    }
    private static Claims getTokenBody(String token){
        return Jwts.parser()
                .setSigningKey(publicKey)
                .parseClaimsJws(token)
                .getBody();
    }
}

在这里展开一下，为了实现前后端交互，采用了jjwt的方案，后面会加入更多的token验证，现在先把基本的东西弄出来。

大体是思路就是，每次登陆成功会返回token给前端做本地保存，以后每一次前端请求api都会在请求头中带上这个token，我们后面加入一个过滤器，专门拦截token然后验证。肯定会有人说token暴露的问题，我的解决方案很简单，实现一个黑名单，每一次登出或失效的token都加入黑名单（这一块我用redis实现，用其他缓存数据库都行，就是一个思路的问题）。token生成的时候也会在redis加入相应刷新时间和失效时间（例如：7天免登陆，即在7天内会自动刷新用户的token；而失效时间定为十五分钟，即每个token只有15分钟有效时间，过了这个时间，会去判断是否在刷新时间内，如果是，则refresh token，并set进request的请求头之中）

参考链接：

https://www.cnblogs.com/stulzq/p/9678501.html#commentform（记得看评论哦，评论里也有很多精华）

https://segmentfault.com/a/1190000013151506（语言不同，但是思想想通）

jwt拦截器

package com.deceen.common.filters;
import com.deceen.common.utils.JwtTokenUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.web.authentication.WebAuthenticationDetailsSource;
import org.springframework.stereotype.Component;
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;
/**
 * @author: zzx
 * @date: 2018/10/15 17:30
 * @description: 确保在一次请求只通过一次filter，而不需要重复执行
 */
@Component
public class JwtAuthenticationTokenFilter extends OncePerRequestFilter {
    @Autowired
    SelfUserDetailsService userDetailsService;
    @Override
    protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) throws ServletException, IOException {
        String authHeader = request.getHeader("Authorization");
        if (authHeader != null && authHeader.startsWith("Bearer ")) {
            String authToken = authHeader.substring("Bearer ".length());
            String username = JwtTokenUtil.parseToken(authToken, "_secret");
            if (username != null && SecurityContextHolder.getContext().getAuthentication() == null) {
                UserDetails userDetails = userDetailsService.loadUserByUsername(username);
                if (userDetails != null) {
                    UsernamePasswordAuthenticationToken authentication =
                                new UsernamePasswordAuthenticationToken(userDetails, null, userDetails.getAuthorities());
                    authentication.setDetails(new WebAuthenticationDetailsSource().buildDetails(request));
                    SecurityContextHolder.getContext().setAuthentication(authentication);
                }
            }
        }
        filterChain.doFilter(request, response);
    }
}

文中的SelfUserDetailsService接下来继续

文中的jwt.jks是jwt证书，你可以自己生成，也可以用我的项目中的，我放到github里，在resource里找

4.springsecurity核心处理

继承UserDetailsService，用户认证的业务代码

package com.deceen.demo.service;
import com.deceen.demo.entity.SelfUserDetails;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.stereotype.Component;
import java.util.HashSet;
import java.util.Set;
/**
 * @author: zzx
 * @date: 2018/10/15 16:54
 * @description: 用户认证、权限
 */
@Component
public class SelfUserDetailsService implements UserDetailsService {
    @Autowired
    private UserMapper userMapper;
    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        //通过username查询用户
        SelfUserDetails user = userMapper.getUser(username);
        if(user == null){
            //仍需要细化处理
            throw new UsernameNotFoundException("该用户不存在");
        }
        Set authoritiesSet = new HashSet();
        // 模拟从数据库中获取用户角色
        GrantedAuthority authority = new SimpleGrantedAuthority("ROLE_ADMIN");
        authoritiesSet.add(authority);
        user.setAuthorities(authoritiesSet);
        log.info("用户{}验证通过",username);
        return user;
    }
}

相应dao层

package com.deceen.demo.dao;
import com.deceen.demo.entity.SelfUserDetails;
import org.apache.ibatis.annotations.Param;
import org.springframework.stereotype.Component;
/**
 * @author: zzx
 * @date: 2018/10/18 14:59
 * @description: 用户dao层
 */
@Component
public interface UserMapper {
    //通过username查询用户
    SelfUserDetails getUser(@Param("username") String username);
}

相应mapper.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="com.deceen.demo.dao.UserMapper">
    <select id="getUser" parameterType="String" resultType="com.deceen.demo.entity.SelfUserDetails">
        SELECT * FROM user
        where username = #{username}
    </select>
</mapper>

核心处理类

package com.deceen.common.config;
import com.deceen.common.filters.JwtAuthenticationTokenFilter;
import com.deceen.common.security.*;
import com.deceen.demo.service.SelfUserDetailsService;
import org.springframework.beans.factory.annotation.Autowired;
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.config.http.SessionCreationPolicy;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
/**
 * @author: zzx
 * @date: 2018/10/15 16:47
 * @description:
 */
@Configuration
public class SpringSecurityConf extends WebSecurityConfigurerAdapter {
    @Autowired
    AjaxAuthenticationEntryPoint authenticationEntryPoint;//未登陆时返回 JSON 格式的数据给前端（否则为 html）
    @Autowired
    AjaxAuthenticationSuccessHandler authenticationSuccessHandler; //登录成功返回的 JSON 格式数据给前端（否则为 html）
    @Autowired
    AjaxAuthenticationFailureHandler authenticationFailureHandler; //登录失败返回的 JSON 格式数据给前端（否则为 html）
    @Autowired
    AjaxLogoutSuccessHandler logoutSuccessHandler;//注销成功返回的 JSON 格式数据给前端（否则为 登录时的 html）
    @Autowired
    AjaxAccessDeniedHandler accessDeniedHandler;//无权访问返回的 JSON 格式数据给前端（否则为 403 html 页面）
    @Autowired
    SelfUserDetailsService userDetailsService; // 自定义user
    @Autowired
    JwtAuthenticationTokenFilter jwtAuthenticationTokenFilter; // JWT 拦截器
    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        // 加入自定义的安全认证
//        auth.authenticationProvider(provider);
        auth.userDetailsService(userDetailsService).passwordEncoder(new BCryptPasswordEncoder());
    }
    @Override
    protected void configure(HttpSecurity http) throws Exception {
        // 去掉 CSRF
        http.csrf().disable()
                .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS) // 使用 JWT，关闭token
                .and()
                .httpBasic().authenticationEntryPoint(authenticationEntryPoint)
                .and()
                .authorizeRequests()//定义哪些URL需要被保护、哪些不需要被保护
                .anyRequest()//任何请求,登录后可以访问
                .access("@rbacauthorityservice.hasPermission(request,authentication)") // RBAC 动态 url 认证
                .and()
                .formLogin()  //开启登录, 定义当需要用户登录时候，转到的登录页面
//                .loginPage("/test/login.html")
//                .loginProcessingUrl("/login")
                .successHandler(authenticationSuccessHandler) // 登录成功
                .failureHandler(authenticationFailureHandler) // 登录失败
                .permitAll()
                .and()
                .logout()//默认注销行为为logout
                .logoutUrl("/logout")
                .logoutSuccessHandler(logoutSuccessHandler)
                .permitAll();
        // 记住我
        http.rememberMe().rememberMeParameter("remember-me")
                .userDetailsService(userDetailsService).tokenValiditySeconds(1000);
        http.exceptionHandling().accessDeniedHandler(accessDeniedHandler); // 无权访问 JSON 格式的数据
        http.addFilterBefore(jwtAuthenticationTokenFilter, UsernamePasswordAuthenticationFilter.class); // JWT Filter
    }
}

有个点说一下：我密码加密选择了BCryptPasswordEncoder格式，官方也推荐这个，然后你们可以自行建一个测试用户，记得密码先用BCryptPasswordEncoder加密一下哦（写一个createUser方法，密码加密保存）

测试

postman模拟请求：

登录成功：

复制token，如下操作，进行接口测试：

请求接口成功：

下一篇讲解集成redis+token刷新+logback，有兴趣就接着看吧

本篇文章的代码：https://github.com/zzxzzxhao/springboot-springsecurity

springboot+springsecurity+mybatis+JWT+Redis 实现前后端离（实战篇续）

后记：

1.加入简单注册功能，SpringSecurityConf加入配置放开url，DemoController加入如下代码

/**
 * 简单注册功能
 * @param username
 * @param password
 * @return
 */
@PostMapping("/register")
public Map<String, Object> register(String username,String password){
	orderService.register(username,password);
	return ResultVO.result(ResultEnum.SUCCESS,true);
}

（详细代码我上传到github了）

2.关于mysql新版本，导致mysql-connector-java版本对应不上的问题

mysql版本:

pom.xml更新对应mysql-connector-java版本

<dependency>
	<groupId>mysql</groupId>
	<artifactId>mysql-connector-java</artifactId>
	<version>8.0.11</version>
</dependency>

同时配置文件中关于数据库连接地址需要加上&serverTimezone=GMT%2B8，即：

spring:
  datasource:
    username: root
    password: 123
    url: jdbc:mysql://localhost/springboot?characterEncoding=utf-8&useSSl=false&serverTimezone=GMT%2B8
    driver-class-name: com.mysql.jdbc.Driver

3.关于自定义登录的

其实也很简单，但是我就不上传了，简单说一下spring security流程

这个流程很清楚啦

UsernamePasswordAuthenticationToken封装加密后的密码以及用户信息

BCryptPasswordEncoder bCryptPasswordEncoder = new BCryptPasswordEncoder();
UsernamePasswordAuthenticationToken authenticationToken = new UsernamePasswordAuthenticationToken(username, bCryptPasswordEncoder.encode(password));
try {
	Authentication authentication = authenticationManager.authenticate(authenticationToken);
	SecurityContextHolder.getContext().setAuthentication(authentication);
	//具体实现。。。
} catch (AuthenticationException e) {
	//自行处理
}

到此这篇关于springboot+springsecurity+mybatis+JWT+Redis 实现前后端离实战教程的文章就介绍到这了,更多相关springboot+springsecurity+mybatis+JWT+Redis 前后端离内容请搜索脚本之家以前的文章或继续浏览下面的相关文章希望大家以后多多支持脚本之家！

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