springboot +redis+token

1、pom.xml
<dependency>
　　<groupId>org.springframework.boot</groupId>
　　<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
<dependency>
　　<groupId>org.springframework.boot</groupId>
　　<artifactId>spring-boot-starter-web</artifactId>
</dependency>

2、application.properties

# 应用名称
spring.application.name=token2038
# 应用服务 WEB 访问端口
server.port=2038

spring.redis.host=localhost
spring.redis.port=6379
spring.redis.database=1

3、RedisService
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.ValueOperations;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;
import org.springframework.stereotype.Service;

@Service
public class RedisService {

@Autowired
RedisTemplate redisTemplate;

public void set(String key,Object value){
　　//更改在redis里面查看key编码问题
　　RedisSerializer redisSerializer = new StringRedisSerializer();
　　redisTemplate.setKeySerializer(redisSerializer);
　　ValueOperations<String,Object> vo = redisTemplate.opsForValue();
　　vo.set(key,value);
}

public Object get(String key){
　　ValueOperations<String,Object> vo = redisTemplate.opsForValue();
　　return vo.get(key);
}

public boolean delete(String key){
　　return redisTemplate.delete(key);
}
}

4、LoginService

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import javax.servlet.http.HttpServletRequest;
import java.util.UUID;

@Service
public class LoginService {

@Autowired
RedisService redisService;

/**
* 进行登录操作，如果用户名和密码正确，使用UUID一个字符串作为token
* @param username
* @param password
* @return
*/
public String login(String username,String password){
　　if(username.equals("liu")&&password.equals("123")){
　　　　String token = UUID.randomUUID().toString();
　　　　redisService.set(token,username);
　　　　return username+"登录成功，token是："+token;
　　}else {
　　　　return "用户名或密码错误";
　　}

}

/**
* 进行注销操作，实质是删除redis和token中的缓存
* @param httpServletRequest
* @return
*/
public String logout(HttpServletRequest httpServletRequest){
　　String token = httpServletRequest.getHeader("token");
　　boolean delete = redisService.delete(token);
　　if (delete){
　　　　return "注销成功";
　　}else {
　　　　return "注销失败";
　　}
}

}

5、LoginController
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import javax.servlet.http.HttpServletRequest;

@RestController
@RequestMapping("/login")
public class LoginController {

@Autowired
LoginService loginService;

@RequestMapping("/login")
public String login(String username,String password){
　　return loginService.login(username,password);
}

@RequestMapping("/logout")
public String logout(HttpServletRequest httpServletRequest){
　　return loginService.logout(httpServletRequest);
}
}

 

 

 

 

 

 

 

 

6、AuthInterceptor

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.util.StringUtils;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.Objects;

@Component
public class AuthInterceptor implements HandlerInterceptor {

@Autowired
RedisService redisService;

@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws IOException {
　　response.setCharacterEncoding("utf-8");
　　response.setContentType("text/html;charset=utf-8");
　　String token = request.getHeader("token");
　　if (StringUtils.isEmpty(token)) {
　　　　response.getWriter().print("用户未登录");
　　　　return false;
}

　　Object loginStatues = redisService.get(token);
　　if (Objects.isNull(loginStatues)) {
　　　　response.getWriter().print("token错误");
　　　　return false;
　　}
　　return true;

}

@Override
public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) {

}

@Override
public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) {

}
}

7、AuthConifg

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

@Configuration
public class AuthConifg implements WebMvcConfigurer {

@Autowired
AuthInterceptor authInterceptor;

@Override
public void addInterceptors(InterceptorRegistry registry) {
registry.addInterceptor(authInterceptor).addPathPatterns("/test/**")
.excludePathPatterns("/login/**");
}
}

 

 

 

 

8、Token2038Application
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class Token2038Application {

public static void main(String[] args) {
SpringApplication.run(Token2038Application.class, args);
}

}

 

参考:https://www.cnblogs.com/lyd447113735/p/14890546.html