SpringCloud简单的单点登录
单点登录
单点登录（Single Sign On），简称为 SSO，是目前比较流行的企业业务整合的解决方案之一。SSO的定义是在多个应用系统中，用户只需要登录一次就可以访问所有相互信任的应用系统。
类似于京东，淘宝等…
个人理解
代码实现(案例)
1.导入redis依赖包
redis.clients
jedis
2.9.0
2.RedisUtil工具类
/**
* 1:连接池的封装
*
* 2:api封装
*/
public class RedisUtil {
static JedisPool jedisPool = null;
static {
GenericObjectPoolConfig poolConfig = new JedisPoolConfig();
//参数设置:
poolConfig.setMaxTotal(30);//最大连接数
poolConfig.setMaxIdle(10);//最大空闲数
poolConfig.setMaxWaitMillis(3*1000);//超时时间
poolConfig.setTestOnBorrow(true);//借的时候进行测试
//你在做的时候,应该丢到properties的配置文件:直接用这个工具类
String host = "127.0.0.1";
int port = 6379;
int timeout = 5 * 1000;
String password = "123456";
jedisPool = new JedisPool(poolConfig, host, port, timeout, password);
}
/**
* 设置
* @param key
* @param value
*/
public static void set(String key, String value) {
// 1:获取jedis实例
Jedis jedis = jedisPool.getResource();
try {
//2:api操作
jedis.set(key, value);
} catch (Exception e) {
e.printStackTrace();
} finally {
if(jedis!=null) {
//3:资源换回
jedis.close();
}
}
}
/**
* 获取
* @param key
* @return
*/
public static String get(String key) {
// 1:获取jedis实例
Jedis jedis = jedisPool.getResource();
try {
//2:api操作
return jedis.get(key);
} catch (Exception e) {
e.printStackTrace();
return null;
} finally {
if(jedis!=null) {
//3:资源换回
jedis.close();
}
}
}
}
3.创建注册中心Eureke(略)
4.创建sso_login9001模块
pom.xml
com.lining.sso
sso_base_util
1.0-SNAPSHOT
org.springframework.boot
spring-boot-starter-web
org.springframework.boot
spring-boot-starter-test
org.springframework.cloud
spring-cloud-starter-netflix-eureka-client
启动类
@SpringBootApplication
@EnableEurekaClient //表示是eureka的客户端
public class UserProviderApplication_8001 {
public static void main(String[] args) {
SpringApplication.run(UserProviderApplication_8001.class);
}
}
controller
@Controller
public class LoginController {
@RequestMapping("/login")
public void login(HttpServletRequest request, HttpServletResponse response){
String name = request.getParameter("name");
String password = request.getParameter("password");
System.out.println(name+":"+password);
String uuid = UUID.randomUUID().toString().substring(10);
RedisUtil.set("uuid",name+":"+password);
Cookie[] cookies = request.getCookies();
Cookie cookie2=new Cookie("uuid",uuid);
response.addCookie(cookie2);
}
}
5.创建sso_login9002模块
controller
@Controller
public class LoginController {
@RequestMapping("/login")
public void login(HttpServletRequest request, HttpServletResponse response){
String name = request.getParameter("name");
String password = request.getParameter("password");
System.out.println(name+":"+password);
Cookie[] cookies = request.getCookies();
for (Cookie cookie:cookies) {
if(cookie.getName().equals("uuid")){
System.out.println(cookie.getName());
String s = RedisUtil.get("uuid");
String[] split = StringUtils.split(s, ":");
System.out.println(split[0]);
System.out.println(split[1]);
}
}
}