1、添加依赖
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< dependency >
< groupId >org.springframework.session</ groupId >
< artifactId >spring-session-data-redis</ artifactId >
< version >1.2.1.RELEASE</ version >
</ dependency >
< dependency >
< groupId >redis.clients</ groupId >
< artifactId >jedis</ artifactId >
< version >2.8.1</ version >
</ dependency >
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2、配置
spring-mvc.xml:
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< bean id = "redisHttpSessionConfiguration"
class = "org.springframework.session.data.redis.config.annotation.web.http.RedisHttpSessionConfiguration" >
< property name = "maxInactiveIntervalInSeconds" value = "600" />
</ bean >
< bean id = "jedisPoolConfig" class = "redis.clients.jedis.JedisPoolConfig" >
< property name = "maxTotal" value = "100" />
< property name = "maxIdle" value = "10" />
</ bean >
< bean id = "jedisConnectionFactory"
class = "org.springframework.data.redis.connection.jedis.JedisConnectionFactory" destroy-method = "destroy" >
< property name = "hostName" value = "${redis_hostname}" />
< property name = "port" value = "${redis_port}" />
< property name = "password" value = "${redis_pwd}" />
< property name = "timeout" value = "3000" />
< property name = "usePool" value = "true" />
< property name = "poolConfig" ref = "jedisPoolConfig" />
</ bean >
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web.xml添加拦截器:
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< filter >
< filter-name >springSessionRepositoryFilter</ filter-name >
< filter-class >org.springframework.web.filter.DelegatingFilterProxy</ filter-class >
</ filter >
< filter-mapping >
< filter-name >springSessionRepositoryFilter</ filter-name >
< url-pattern >/*</ url-pattern >
</ filter-mapping >
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3、使用spring-session
只要使用标准的servlet api调用session,在底层就会通过Spring Session得到的,并且会存储到Redis或其他你所选择的数据源中。
这里是我写的一个demo:
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/**
* @author fengzp
* @date 17/2/23下午3:19
*/
@Controller
@RequestMapping (value = "index" )
public class IndexController {
private final Gson gson = new GsonBuilder().setDateFormat( "yyyyMMddHHmmss" ).create();
@RequestMapping (value = "login" )
public String login(HttpServletRequest request, String username){
request.getSession().setAttribute( "user" , gson.toJson( new User(username, "123456" )));
return "login" ;
}
@RequestMapping (value = "index" )
public String index(HttpServletRequest request, Model model){
User user = gson.fromJson(request.getSession().getAttribute( "user" ).toString(), User. class );
model.addAttribute( "user" , user);
return "index" ;
}
}
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index.jsp:
第一个tomcat
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< html >
< body >
< h2 >Hello World!</ h2 >
< p >${user.username}</ p >
</ body >
</ html >
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第二个tomcat
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< html >
< body >
< h2 >Hello World! i am the second!</ h2 >
< p >${user.username}</ p >
</ body >
</ html >
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测试
这里利用上一篇nginx负载配置的两个tomcat来测试。
首先访问 http://192.168.99.100/feng/index/login.htm?username=nginx 来触发生成session。
查看redis,发现session已经保存到redis。
访问 http://192.168.99.100/feng/index/index.htm 来读取session, 并刷新多次。
发现在负载的情况下读取session没问题,并且是同一个session,成功实现负载+session共享!以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。
原文链接:http://www.cnblogs.com/andyfengzp/p/6434287.html