用户登录业务

单点登录(Single Sign On),简称SSO. 用户只需要登陆一次就可以访问所有相互信任的应用系统

单点登录三种常见方式

1. session广播机制实现
2. 使用redis+cookie实现
3. 使用token实现

session广播机制实现

其实就是session复制，从一个模块登录后，存入session复制到其他模块中，但是复制会消耗资源
适合模块数小的项目

使用redis+cookie实现

在项目中任何一个模块登录后，把数据存放到两个地方
1.redis 在key：生成唯一随机值(is,用户id等等),在value：用户数据
2.cookie：把redis里面生成key值放到cookie里面

访问项目其他模块，发送请求带着cookie进行发送，获取cookie值，拿着cookie做事，
把cookie获取值，到redis进行查询，根据key进行查询，如果查询到数据就是登陆

使用token实现

在项目某个模块进行登陆，登陆后，按照某种规则生成字符串，把登陆之后用户包含到生成字符串里面，把字符串返回
1.可以把字符串通过cookie返回
2.可以把支持通过地址栏返回

在去访问项目其他模块，每次访问在地址栏都带着生成字符串，在访问模块你获取地址栏字符串，根据字符串获取用户信息，如果获取到就是登陆

在common_utils模块中添加jwt工具依赖

		<dependency>
            <groupId>io.jsonwebtoken</groupId>
            <artifactId>jjwt</artifactId>
            <version>0.9.1</version>
        </dependency>

创建JWT工具类

package com.atguigu.commonutils.utils;

import io.jsonwebtoken.Claims;
import io.jsonwebtoken.Jws;
import io.jsonwebtoken.Jwts;
import io.jsonwebtoken.SignatureAlgorithm;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.util.StringUtils;

import javax.servlet.http.HttpServletRequest;
import java.util.Date;

/**
 * @author helen
 * @since 2019/10/16
 */
public class JwtUtils {

    public static final long EXPIRE = 1000 * 60 * 60 * 24;
    public static final String APP_SECRET = "ukc8BDbRigUDaY6pZFfWus2jZWLPHO";

    //生成token字符串的方法
    public static String getJwtToken(String id, String nickname){

        String JwtToken = Jwts.builder()
                .setHeaderParam("typ", "JWT")
                .setHeaderParam("alg", "HS256")
                .setSubject("guli-user")
                .setIssuedAt(new Date())
                .setExpiration(new Date(System.currentTimeMillis() + EXPIRE))
                .claim("id", id)//设置token主题部分，存储用户信息
                .claim("nickname", nickname)
                .signWith(SignatureAlgorithm.HS256, APP_SECRET)
                .compact();

        return JwtToken;
    }

    /**
     * 判断token是否存在与有效
     * @param jwtToken
     * @return
     */
    public static boolean checkToken(String jwtToken) {
        if(StringUtils.isEmpty(jwtToken)) return false;
        try {
            Jwts.parser().setSigningKey(APP_SECRET).parseClaimsJws(jwtToken);
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
        return true;
    }

    /**
     * 判断token是否存在与有效
     * @param request
     * @return
     */
    public static boolean checkToken(HttpServletRequest request) {
        try {
            String jwtToken = request.getHeader("token");
            if(StringUtils.isEmpty(jwtToken)) return false;
            Jwts.parser().setSigningKey(APP_SECRET).parseClaimsJws(jwtToken);
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
        return true;
    }

    /**
     * 根据token获取会员id
     * @param request
     * @return
     */
    public static String getMemberIdByJwtToken(HttpServletRequest request) {
        String jwtToken = request.getHeader("token");
        if(StringUtils.isEmpty(jwtToken)) return "";
        Jws<Claims> claimsJws = Jwts.parser().setSigningKey(APP_SECRET).parseClaimsJws(jwtToken);
        Claims claims = claimsJws.getBody();
        return (String)claims.get("id");
    }
}

新建短信微服务

在service模块下创建子模块service-msm

创建controller和service代码

启动类

@SpringBootApplication(exclude = DataSourceAutoConfiguration.class)
@ComponentScan("com.atguigu")
public class MsmApplication {
    public static void main(String[] args) {
        SpringApplication.run(MsmApplication.class,args);
    }
}

配置文件

# 服务端口
server.port=8005
# 服务名
spring.application.name=service-msm

# mysql数据库连接
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/gulischool?serverTimezone=GMT%2B8
spring.datasource.username=root
spring.datasource.password=123456

# 环境设置：dev、test、prod
spring.profiles.active=dev

spring.cloud.nacos.discovery.server-addr=127.0.0.1:8848

spring.redis.host=123.57.252.81
spring.redis.port=6379
spring.redis.database= 0
spring.redis.timeout=1800000

spring.redis.lettuce.pool.max-active=20
spring.redis.lettuce.pool.max-wait=-1
#最大阻塞等待时间(负数表示没限制)
spring.redis.lettuce.pool.max-idle=5
spring.redis.lettuce.pool.min-idle=0
#最小空闲

#返回json的全局时间格式
spring.jackson.date-format=yyyy-MM-dd HH:mm:ss
spring.jackson.time-zone=GMT+8


#mybatis日志
mybatis-plus.configuration.log-impl=org.apache.ibatis.logging.stdout.StdOutImpl

在service-msm的pom中引入依赖

	<dependencies>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
        </dependency>
        <dependency>
            <groupId>com.aliyun</groupId>
            <artifactId>aliyun-java-sdk-core</artifactId>
        </dependency>
    </dependencies>

编写controller，根据手机号发送短信

生成验证码工具类

package com.atguigu.msmservice.utils;

import java.text.DecimalFormat;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Random;

/**
 * 获取随机数
 * 
 * @author qianyi
 *
 */
public class RandomUtil {

	private static final Random random = new Random();

	private static final DecimalFormat fourdf = new DecimalFormat("0000");

	private static final DecimalFormat sixdf = new DecimalFormat("000000");

	public static String getFourBitRandom() {
		return fourdf.format(random.nextInt(10000));
	}

	public static String getSixBitRandom() {
		return sixdf.format(random.nextInt(1000000));
	}

	/**
	 * 给定数组，抽取n个数据
	 * @param list
	 * @param n
	 * @return
	 */
	public static ArrayList getRandom(List list, int n) {

		Random random = new Random();

		HashMap<Object, Object> hashMap = new HashMap<Object, Object>();

		// 生成随机数字并存入HashMap
		for (int i = 0; i < list.size(); i++) {

			int number = random.nextInt(100) + 1;

			hashMap.put(number, i);
		}

		// 从HashMap导入数组
		Object[] robjs = hashMap.values().toArray();

		ArrayList r = new ArrayList();

		// 遍历数组并打印数据
		for (int i = 0; i < n; i++) {
			r.add(list.get((int) robjs[i]));
			System.out.print(list.get((int) robjs[i]) + "\t");
		}
		System.out.print("\n");
		return r;
	}
}

@RestController
@CrossOrigin
@RequestMapping("/edumsm/msm")
public class MsmController {

    @Autowired
    private MsmService msmService;

    @Autowired
    private RedisTemplate<String,String> redisTemplate;
    //发送短信的方法
    @GetMapping("send/{phone}")
    public ResultVo sendMsm(@RequestParam String phone){
        //先从redis获取验证码，如果获取到直接返回
        String code= redisTemplate.opsForValue().get(phone);
        if(!StringUtils.isEmpty(code)){
            return ResultVo.ok();
        }
        //如果redis获取不到，进行阿里云发送

        //生成随机值，传递阿里云进行发送
        code= RandomUtil.getFourBitRandom();
        HashMap<Object, Object> param = new HashMap<>();
        param.put("code",code);
        //调用service发送短信的方法
        boolean isSend=msmService.send(param,phone);
        if(isSend){
            redisTemplate.opsForValue().set(phone,code,5, TimeUnit.MINUTES);
            return ResultVo.ok();
        }
        else{
            return ResultVo.error().message("短信发送失败");
        }


    }
}

@Override
    public boolean send(HashMap<Object, Object> param, String phone) {
        if(StringUtils.isEmpty(phone)){
            return false;
        }
        DefaultProfile profile = DefaultProfile.getProfile("cn-hangzhou", "<accessKeyId>", "<accessSecret>");//自己账号的AccessKey信息
        IAcsClient client = new DefaultAcsClient(profile);

        CommonRequest request = new CommonRequest();
        request.setSysMethod(MethodType.POST);
        request.setSysDomain("dysmsapi.aliyuncs.com");//短信服务的服务接入地址
        request.setSysVersion("2017-05-25");//API的版本号
        request.setSysAction("SendSms");//API的名称
        request.putQueryParameter("PhoneNumbers", "1503871****");//接收短信的手机号码
        request.putQueryParameter("SignName", "阿里大于测试专用");//短信签名名称
        request.putQueryParameter("TemplateCode", "SMS_209335004");//短信模板ID
        request.putQueryParameter("TemplateParam", JSONObject.toJSONString(param));//短信模板变量对应的实际值
        try {
            CommonResponse response = client.getCommonResponse(request);
            System.out.println(response.getData());
            boolean success = response.getHttpResponse().isSuccess();
            return success;
        } catch (ServerException e) {
            e.printStackTrace();
        } catch (ClientException e) {
            e.printStackTrace();
        }
        return false;
    }

登录和注册

在service模块下创建子模块service-ucenter

使用代码生成器生成代码

创建ucenter_member表

配置文件

# 服务端口
server.port=8006
# 服务名
spring.application.name=service-ucenter

# 环境设置：dev、test、prod
spring.profiles.active=dev

spring.cloud.nacos.discovery.server-addr=127.0.0.1:8848
# mysql数据库连接
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/gulischool?serverTimezone=GMT%2B8
spring.datasource.username=root
spring.datasource.password=123456

spring.redis.host=123.57.252.81
spring.redis.port=6379
spring.redis.database= 0
spring.redis.timeout=1800000
spring.redis.lettuce.pool.max-active=20
spring.redis.lettuce.pool.max-wait=-1
#最大阻塞等待时间(负数表示没限制)
spring.redis.lettuce.pool.max-idle=5
spring.redis.lettuce.pool.min-idle=0
#最小空闲

#返回json的全局时间格式
spring.jackson.date-format=yyyy-MM-dd HH:mm:ss
spring.jackson.time-zone=GMT+8

#配置mapper xml文件的路径
mybatis-plus.mapper-locations=classpath:com/atguigu/educenter/mapper/xml/*.xml

#mybatis日志
mybatis-plus.configuration.log-impl=org.apache.ibatis.logging.stdout.StdOutImpl

创建启动类

@SpringBootApplication
@ComponentScan({"com.atguigu"})
@MapperScan("com.atguigu.educenter.mapper")
public class UcenterApplication {
    public static void main(String[] args) {
        SpringApplication.run(UcenterApplication.class,args);
    }
}

RegisterVo用于数据封装

@Data

@ApiModel(value="注册对象", description="注册对象")
public class RegisterVo {

    @ApiModelProperty(value = "昵称")
    private String nickname;

    @ApiModelProperty(value = "手机号")
    private String mobile;

    @ApiModelProperty(value = "密码")
    private String password;

    @ApiModelProperty(value = "验证码")
    private String code;
}

创建controller编写登录和注册方法

@RestController
@CrossOrigin
@RequestMapping("/educenter/member")
public class UcenterMemberController {

    @Autowired
    private UcenterMemberService memberService;

    //登录
    @PostMapping("/login")
    public ResultVo login(@RequestBody UcenterMember member){
        //调用service方法实现登录
        //返回token值，使用jwt生成
        String token=memberService.login(member);
        return ResultVo.ok().data("token",token);
    }

    //注册
    @PostMapping("register")
    public ResultVo register(@RequestBody RegisterVo registerVo){
        memberService.register(registerVo);
        return ResultVo.ok();

    }

    //根据token获取用户信息
    @GetMapping("getMemberInfo")
    public ResultVo getMemberInfo(HttpServletRequest request){
        //调用jwt工具类方法，根据request对象获取头信息，返回用户id
        String id = JwtUtils.getMemberIdByJwtToken(request);
        //查询数据库用户id获取用户信息
        UcenterMember member = memberService.getById(id);

        return ResultVo.ok().data("userIno",member);
    }
}

创建service接口和实现类

@Service
public class UcenterMemberServiceImpl extends ServiceImpl<UcenterMemberMapper, UcenterMember> implements UcenterMemberService {


    @Autowired
    private RedisTemplate<String,String>  redisTemplate;
    //登录
    @Override
    public String login(UcenterMember member) {
        String mobile = member.getMobile();
        String password = member.getPassword();

        //判断手机号和密码是否为空
        if(StringUtils.isEmpty(mobile)||StringUtils.isEmpty(password)){
            throw new GuliException(20001,"登录失败");
        }
        //判断手机号是否正确
        QueryWrapper<UcenterMember> queryWrapper = new QueryWrapper<>();
        queryWrapper.eq("mobile",mobile);
        UcenterMember ucenterMember = baseMapper.selectOne(queryWrapper);
        //判断查询对象是否为空
        if(ucenterMember==null){
            //没有这个手机号
            throw new GuliException(20001,"登录失败");

        }
        //判断密码
        //把输入的密码进行加密，再和数据库密码进行比较
        if(!MD5.encrypt(password).equals(ucenterMember.getPassword())){
            throw new GuliException(20001,"登录失败");
        }

        //判断用户是否禁用
        if(ucenterMember.getIsDisabled()){
            throw new GuliException(20001,"登录失败");
        }

        //登录成功
        //生成token字符串，使用jwt工具类
        String jwtToken = JwtUtils.getJwtToken(ucenterMember.getId(), ucenterMember.getNickname());

        return jwtToken;
    }

    //注册
    @Override
    public void register(RegisterVo registerVo) {
        //获取注册的数据
        String code=registerVo.getCode();//验证码
        String mobile = registerVo.getMobile(); //手机号
        String nickname = registerVo.getNickname(); //昵称
        String password = registerVo.getPassword(); //密码

        //非空判断
        if (StringUtils.isEmpty(mobile) || StringUtils.isEmpty(password) || StringUtils.isEmpty(code)||StringUtils.isEmpty(nickname)){
            throw new GuliException(20001,"注册失败");
        }

        //判断验证码
        //获取redis验证码
        String rediscode = redisTemplate.opsForValue().get(mobile);
        if(!code.equals(rediscode)){
            throw new GuliException(20001,"注册失败");
        }

        //判断手机是否重复，表里面存在相同手机号不进行添加
        QueryWrapper<UcenterMember> queryWrapper = new QueryWrapper<>();
        queryWrapper.eq("mobile",mobile);
        Integer count = baseMapper.selectCount(queryWrapper);
        if(count>0){
            throw new GuliException(20001,"注册失败");
        }

        UcenterMember ucenterMember = new UcenterMember();
        ucenterMember.setMobile(mobile);
        ucenterMember.setNickname(nickname);
        ucenterMember.setPassword(MD5.encrypt(password));
        ucenterMember.setIsDisabled(false);
        ucenterMember.setAvatar("https://wpimg.wallstcn.com/f778738c-e4f8-4870-b634-56703b4acafe.gif");
        baseMapper.insert(ucenterMember);
    }


}