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该问题已被官方收录

rmi后cookie的反序列化UID问题

3

序列化

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

class="cursor-pointer"> 源码

@Override
    public Cookie getCookie(String userName) throws Exception {
        User user = studentService.findNameUser(userName);
        Long id = user.getUserId();
        // 使用用户ID+系统当前时间生成唯一token, 格式为键值对
        String token = id + "|" + id + "|" + System.currentTimeMillis();
        logger.info("生成的token是:"+token);
        // 用DES加密key 必须8位
        byte[] bytes = DESUtil.encrypt(token,skey);
        logger.info("加密后的token: " + DESUtil.toHexString(bytes).toUpperCase());
        logger.info("加密后的Base64 token: " + Base64.encodeBase64String(bytes));
        //org.apache.commons.codec.binary.Base64;依赖包
        Cookie cookie = new Cookie("token",Base64.encodeBase64String(bytes));
        // 设置 Cookie 过期时间 单位为秒
        cookie.setMaxAge(7000);
        // 设置 Cookie 有效路径
        cookie.setPath("/");
        logger.info("新生成的Cookie-效时间-值: " + cookie.getName() + "-->" + cookie.getMaxAge() + "-->" + cookie.getValue() + cookie.getPath());
        return cookie;
    }

logger.info("登录成功，生成cookie");
            Cookie cookie = studentRmi.getCookie(userName);
            response.addCookie(cookie);
            return "redirect:student";

该问题已被官方收录

redis 缓存报错

1

2

redis

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

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

<bean id="jedisPoolConfig" class="redis.clients.jedis.JedisPoolConfig">
        <property name="maxIdle" value="${redis.maxIdle}"/>
        <property name="maxWaitMillis" value="${redis.maxWait}"/>
        <property name="testOnBorrow" value="${redis.testOnBorrow}"/>
    </bean>

<bean id="jedisConnectionFactory"
          class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory">
        <property name="hostName" value="${redis.hostName}"/>
        <property name="port" value="${redis.port}"/>
        <property name="poolConfig" ref="jedisPoolConfig"/>
        <property name="timeout" value="${redis.timeout}"/>
    </bean>

<bean id="stringRedisTemplate"
          class="org.springframework.data.redis.core.StringRedisTemplate">
            <property name="connectionFactory" ref="jedisConnectionFactory"/>

<property name="keySerializer">
            <bean class="org.springframework.data.redis.serializer.StringRedisSerializer"/>
        </property>
        <property name="valueSerializer">
            <bean class="org.springframework.data.redis.serializer.JdkSerializationRedisSerializer"/>
        </property>
    </bean>

</beans>

idea 2018.1.2   spring 4.13
  
    <dependency>
      <groupId>redis.clients</groupId>
      <artifactId>jedis</artifactId>
      <version>2.8.1</version>
    </dependency>
    <dependency>
      <groupId>org.springframework.data</groupId>
      <artifactId>spring-data-redis</artifactId>
      <version>1.7.2.RELEASE</version>
    </dependency>

<dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-orm</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context-support</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-test</artifactId>
      <version>${spring.version}</version>
    </dependency>
    
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>${spring.version}</version>
    </dependency>

<dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-aop</artifactId>
      <version>${spring.version}</version>
    </dependency>

<dependency>
      <groupId>cglib</groupId>
      <artifactId>cglib-nodep</artifactId>
      <version>2.2</version>
    </dependency>

<dependency>
      <groupId>org.aspectj</groupId>
      <artifactId>aspectjweaver</artifactId>
      <version>1.8.11</version>
    </dependency>

<dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>5.1.39</version>
    </dependency>
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>3.4.1</version>
    </dependency>
    
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>1.3.1</version>
    </dependency>

该问题已被官方收录

启动jmeter内存溢出

1

压测

class="cursor-pointer"> 详细描述

该问题已被官方收录

本地无法连接到redis

2

1

redis

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

class="cursor-pointer"> 源码

重启防火墙

/etc/init.d/iptables restart

查看防火墙开放的端口

/etc/init.d/iptables status

关闭防火墙。

[root@iZwz918kzgnoj99qj89w9eZ init.d]#  /etc/init.d/iptables stop

iptables: Setting chains to policy ACCEPT: filter          [  OK  ]

iptables: Flushing firewall rules:                         [  OK  ]

iptables: Unloading modules:                               [  OK  ]

redis.clients.jedis.exceptions.JedisConnectionException: java.net.ConnectException: Connection refused: connect

at redis.clients.jedis.Connection.connect(Connection.java:155)
	at redis.clients.jedis.BinaryClient.connect(BinaryClient.java:83)
	at redis.clients.jedis.Connection.sendCommand(Connection.java:107)
	at redis.clients.jedis.BinaryClient.ping(BinaryClient.java:96)
	at redis.clients.jedis.BinaryJedis.ping(BinaryJedis.java:108)
	at com.alibaba.dao.MybatisTest.test0(MybatisTest.java:59)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:75)
	at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:86)
	at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
	at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:252)
	at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:94)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
	at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
	at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
	at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:191)
	at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
	at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
	at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
	at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
Caused by: java.net.ConnectException: Connection refused: connect
	at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)

该问题已被官方收录

memcached 无法启动，监听远程ip

1

class="cursor-pointer"> 详细描述

./memcached -p 11211 -m 64m -l xxx.xxx.xxx.xxx -p 11211 -vv -u root  使用前面参数启动memcached ，其中 xxx.xxx.xxx.xxx为远程ip地址，执行前面命名无法启动memcached，进程里没有memcached，但若把远程ip去掉换为默认的本地ip，即127.0.0.1，则能启动，何解？
[root@VM_0_9_centos bin]# ./memcached -p 11211 -m 64m -l xxx.xxx.xxx.xxx -p 11211 -vv -u root
slab class   1: chunk size        96 perslab   10922
slab class   2: chunk size       120 perslab    8738
slab class   3: chunk size       152 perslab    6898
slab class   4: chunk size       192 perslab    5461
slab class   5: chunk size       240 perslab    4369
slab class   6: chunk size       304 perslab    3449
slab class   7: chunk size       384 perslab    2730
slab class   8: chunk size       480 perslab    2184
slab class   9: chunk size       600 perslab    1747
slab class  10: chunk size       752 perslab    1394
slab class  11: chunk size       944 perslab    1110
slab class  12: chunk size      1184 perslab     885
slab class  13: chunk size      1480 perslab     708
slab class  14: chunk size      1856 perslab     564
slab class  15: chunk size      2320 perslab     451
slab class  16: chunk size      2904 perslab     361
slab class  17: chunk size      3632 perslab     288
slab class  18: chunk size      4544 perslab     230
slab class  19: chunk size      5680 perslab     184
slab class  20: chunk size      7104 perslab     147
slab class  21: chunk size      8880 perslab     118
slab class  22: chunk size     11104 perslab      94
slab class  23: chunk size     13880 perslab      75
slab class  24: chunk size     17352 perslab      60
slab class  25: chunk size     21696 perslab      48
slab class  26: chunk size     27120 perslab      38
slab class  27: chunk size     33904 perslab      30
slab class  28: chunk size     42384 perslab      24
slab class  29: chunk size     52984 perslab      19
slab class  30: chunk size     66232 perslab      15
slab class  31: chunk size     82792 perslab      12
slab class  32: chunk size    103496 perslab      10
slab class  33: chunk size    129376 perslab       8
slab class  34: chunk size    161720 perslab       6
slab class  35: chunk size    202152 perslab       5
slab class  36: chunk size    252696 perslab       4
slab class  37: chunk size    315872 perslab       3
slab class  38: chunk size    394840 perslab       2
slab class  39: chunk size    524288 perslab       2
bind(): Cannot assign requested address
failed to listen on TCP port 11211: Cannot assign requested address

该问题已被官方收录

使用XMemcached后项目出现异常

0

1

memcache

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图