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Nginx负载均衡跳转异常

0

1

Nginx

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 源码

worker_processes 1;


events {
worker_connections 1024;
}
http {
include mime.types;
default_type application/octet-stream;
sendfile on;
keepalive_timeout 65;
upstream nbgz {
ip_hash;
server 127.0.0.1:8081 weight=3;
server 127.0.0.1:8082 weight=3;
server 127.0.0.1:8083 weight=3;
}
server {
listen 8780;
server_name localhost;
location / {
root html;
index index.html index.htm;
proxy_pass http://nbgz;
proxy_redirect off; 
proxy_set_header Host $http_host; 
proxy_set_header X-Real-IP $remote_addr; 
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; 
proxy_set_header Cookie $http_cookie; 
chunked_transfer_encoding off; 
proxy_connect_timeout 1;
proxy_read_timeout 30;
proxy_send_timeout 60;
} error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
}

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Tomcat运行war包时出错

4

1

jetty/tomcat

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

class="cursor-pointer"> 源码

HTTP Status 404 – Not Found

Type Status Report

Message /students/jump3

Description The origin server did not find a current representation for the target resource or is not willing to disclose that one exists.

Apache Tomcat/8.5.34

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spring-data-redis的redistemplate注入失败

1

1

redis

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

class="cursor-pointer"> 源码

 <context:property-placeholder location="classpath:redis.properties" ignore-unresolvable="true"/>

    <bean id="poolConfig" class="redis.clients.jedis.JedisPoolConfig">
        <property name="maxIdle" value="${redis.pool.maxIdle}" />
        <property name="minIdle" value="${redis.pool.minIdle}" />
        <property name="maxTotal" value="${redis.pool.maxTotal}" />
        <property name="testOnBorrow" value="${redis.pool.testOnBorrow}" />
    </bean>

    <bean id="redisConnectionFactory" class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory"
          p:host-name="${redis.host}"
          p:port="${redis.port}"
          p:pool-config-ref="poolConfig"/>

    <bean id="redisTemplate" class="org.springframework.data.redis.core.StringRedisTemplate">
        <property name="connectionFactory"   ref="redisConnectionFactory" />
        <property name="keySerializer">
            <bean class="org.springframework.data.redis.serializer.StringRedisSerializer"></bean>
        </property>
        <!-- 序列化key和value采用java序列化 -->
        <property name="valueSerializer">
            <bean class="org.springframework.data.redis.serializer.JdkSerializationRedisSerializer"/>
        </property>
    </bean>

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使用了memcached之后用Jmeter压测性能提升不大

2

1

压测

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

class="cursor-pointer"> 源码

    public List<Student> list(){
//        List<Student> studentlist;
//        if ((studentlist=cacheManager.get("studentlist"))!=null)
//        return studentlist;
//        else {
//            studentlist = studentMapper.list();
//            cacheManager.add("studentlist",studentlist);
//            return studentlist;
//        }
        return studentMapper.list();
    }

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redis如何实现持久化操作，在实际应用中如何处理

2

1

redis

class="cursor-pointer"> 详细描述

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用拦截器的时候使用request转发页面，如何能够跳转到tiles配置的页面？

2

1

interceptor

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

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mysql的表里面中文显示乱码

1

1

数据库

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

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Spring AOp切切面没有效果？

0

1

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

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打jar包遇到了问题, 说.jar中没有主清单属性,

0

1

maven

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

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redisTemplate存入byte[]类型失败

1

1

redis

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

class="cursor-pointer"> 源码

public class Sigupserviceimpl implements Signupservice{

    @Autowired(required = false)
    private  SignupDao signupDao;

    @Autowired
    private RedisTemplate redisTemplate;

    public List<Signup> getSignupByPage(int start,int limit) {
        ArrayList IdList = new ArrayList();
        List<Signup> List2 = new ArrayList<Signup>();
        if (redisTemplate.opsForValue().get(String.valueOf(start)+"page")!=null){
            IdList = (ArrayList) redisTemplate.opsForValue().get(String.valueOf(start)+"page");
            for (int i = 0; i <IdList.size() ; i++) {
                List2.add((Signup) redisTemplate.opsForValue().get(String.valueOf(IdList.get(i))));
            }
            System.out.println("缓存存在");
        }else {
            List2 = signupDao.selectSignup(start,limit);
            for (Signup s:List2){
                IdList.add(s.getId());
                redisTemplate.opsForValue().set(String.valueOf(s.getId()),s,500, TimeUnit.SECONDS);
            }
            redisTemplate.opsForValue().set(String.valueOf(start)+"page",IdList,500,TimeUnit.SECONDS);
            System.out.println("缓存不存在");
        }
        return List2;
    }
    //  单个查询
    public Signup GetSignupById(long id){
        String ids = String.valueOf(id);
        Signup signup = (Signup) redisTemplate.opsForValue().get(ids);
        if (signup!=null){
            System.out.println("有缓存");
            return signup;
        }else {
            signup=signupDao.GetSignupById(id);
            if (signup!=null){
                redisTemplate.opsForValue().set(ids,signup,60*50,TimeUnit.SECONDS);
            }else {
//                memcachedClient.set(ids,60*5,null);
                redisTemplate.opsForValue().set(ids,null,60*5,TimeUnit.SECONDS);
            }
        }

        return signupDao.GetSignupById(id);
    }
    //更新
    public int updateByPrimaryKey(Signup signup) {
        int result = signupDao.updateByPrimaryKey(signup);
//        memcachedClient.set(String.valueOf(signup.getId()),60*12,signup);
        redisTemplate.opsForValue().set(String.valueOf(signup.getId()),signup,60*12,TimeUnit.SECONDS);
        return result;
    }

    public int InsertSign(Signup signup)  {
//        memcachedClient.flushAll();
        return signupDao.insertSignup(signup);
    }

    public List<Signup> getSignAll(){
        return signupDao.GetSignAll();
    }

    public int DeleteById(long id) {
        redisTemplate.delete(String.valueOf(id));
        int result = signupDao.deleteSignupById(id);
        redisTemplate.delete("0page");
        return result;
    }

}

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