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我自己md5工具类得到的散列值和网上别人的不一样

0

1

md5/des

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class="cursor-pointer"> 错误截图

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spring rmi 运行时会报出主机拒绝连接的错误

2

1

springRMI

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

class="cursor-pointer"> 源码

<bean name="rmiSend" class="org.springframework.remoting.rmi.RmiServiceExporter">
        <property name="service" ref="SendService"/>
        <property name="serviceName" value="userRmiServiceTest1"/>
        <property name="serviceInterface" value="com.mvc.service.SendService"/>
        <property name="registryPort" value="1025"/>
    </bean>

    <bean name="rmiOss" class="org.springframework.remoting.rmi.RmiServiceExporter">
        <property name="service" ref="OssService"/>
        <property name="serviceName" value="userRmiServiceTest2"/>
        <property name="serviceInterface" value="com.mvc.service.OssService"/>
        <property name="registryPort" value="1026"/>
    </bean>

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SpringMVC框架控制层更新删除

1

SSM

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class="cursor-pointer"> 错误截图

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memcache有三种客户端，在实际应用中如何取舍？

2

1

memcache

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部署web项目使用tomcat中文乱码,而使用jetty时不乱码

1

SSM

class="cursor-pointer"> 详细描述

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mapper文件扫描不到

1

SSM

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

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在使用redis缓存时如何将业务逻辑与缓存之间解耦

1

缓存相关

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class="cursor-pointer"> 源码

   @Override
    public User getUserById(int id) throws Exception {
        //find  cache
        Object object = jedisCache.get("user"+id);
        // if exist,return
        if (object!=null){
            return (User)object;
        }
        // if not exist,find user
        User user = userDAO.getUserById(id);
        jedisCache.set("user"+id,user);
        return user;
    }

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打包到服务器的项目无法跑通

1

jetty/tomcat

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2018-05-08 12:00:43org.springframework.beans.factory.BeanCreationException: Error creati
ng bean with name 'dataSource' defined in class path resource [applicationContext.xml]: 
Invocation of init method failed; nested exception is org.apache.commons.dbcp.SQLNestedE
xception: Cannot create PoolableConnectionFactory (Access denied for user 'root'@'localh
ost' (using password: YES))
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.
initializeBean(AbstractAutowireCapableBeanFactory.java:1628)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.
doCreateBean(AbstractAutowireCapableBeanFactory.java:555)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.
createBean(AbstractAutowireCapableBeanFactory.java:483)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(Abs
tractBeanFactory.java:306)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSin
gleton(DefaultSingletonBeanRegistry.java:230)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(Abstr
actBeanFactory.java:302)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(Abstrac
tBeanFactory.java:197)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInsta
ntiateSingletons(DefaultListableBeanFactory.java:761)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFact
oryInitialization(AbstractApplicationContext.java:867)
	at org.springframework.context.support.AbstractApplicationContext.refresh(Abstra
ctApplicationContext.java:543)
	at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicati
onContext(ContextLoader.java:443)
	at org.springframework.web.context.ContextLoader.initWebApplicationContext(Conte
xtLoader.java:325)
	at org.springframework.web.context.ContextLoaderListener.contextInitialized(Cont
extLoaderListener.java:107)
	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4
792)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5
256)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:75
4)
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:730)
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:734)
	at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:985)
	at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1857)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:114
9)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:62
4)
	at java.lang.Thread.run(Thread.java:748)
Caused by: org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionF
actory (Access denied for user 'root'@'localhost' (using password: YES))
	at org.apache.commons.dbcp.BasicDataSource.createPoolableConnectionFactory(Basic
DataSource.java:1549)
	at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java
:1388)
	at org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:10
44)
	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.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.
invokeCustomInitMethod(AbstractAutowireCapableBeanFactory.java:1758)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.
invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1695)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.
initializeBean(AbstractAutowireCapableBeanFactory.java:1624)
	... 25 more
Caused by: java.sql.SQLException: Access denied for user 'root'@'localhost' (using passw
ord: YES)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:965)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3976)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3912)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:871)
	at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.ja
va:1714)
	at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1224)
	at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2190)
	at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2221)
	at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2016)
	at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:776)
	at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccess
orImpl.java:62)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstruct
orAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
	at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:386)
	at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:330)
	at org.apache.commons.dbcp.DriverConnectionFactory.createConnection(DriverConnec
tionFactory.java:38)
	at org.apache.commons.dbcp.PoolableConnectionFactory.makeObject(PoolableConnecti
onFactory.java:582)
	at org.apache.commons.dbcp.BasicDataSource.validateConnectionFactory(BasicDataSo
urce.java:1556)
	at org.apache.commons.dbcp.BasicDataSource.createPoolableConnectionFactory(Basic
DataSource.java:1545)
	... 34 more

class="cursor-pointer"> 错误截图