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该问题已被官方收录

spring aop 横切controller 切点切入有问题

1

spring

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

该问题已被官方收录

spring整合mybatis实现CRUD出现异常。

0

1

spring

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

该问题已被官方收录

使用时间戳记录时间后无法显示

1

SSM

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

该问题已被官方收录

打包到服务器的项目无法跑通

1

jetty/tomcat

class="cursor-pointer"> 详细描述

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

该问题已被官方收录

token是否应该在服务器存储？

1

会话管理

class="cursor-pointer"> 详细描述

该问题已被官方收录

使用SpringAOP时无法成功使用切面类

1

aop

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

class="cursor-pointer"> 源码

package jnshu.model.aopTool;

import org.apache.log4j.Logger;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;

/**
 * API接口性能分析
 */
@Aspect
public class TimerAspect {
    private static Logger logger = Logger.getLogger (TimerAspect.class);//引入日志配置
    /**
     * 定义切点函数
     */
    @Pointcut("execution(* jnshu.controller.*.*(..))||execution(* jnshu.service.*.*(..))")
    void timer() {
    }

    @Around("timer()")
    public Object logTimer(ProceedingJoinPoint thisJoinPoint) throws Throwable {

//        MonitorTime monitorTime=new MonitorTime();
        //获取目标类名称
        String clazzName = thisJoinPoint.getTarget().getClass().getName();
        //获取目标类方法名称
        String methodName = thisJoinPoint.getSignature().getName();

        // 计时并调用目标函数
        long start = System.currentTimeMillis();
        Object result = thisJoinPoint.proceed();
        long time = System.currentTimeMillis() - start;
//        System.out.println (result.toString ());
        logger.warn ("执行"+clazzName+"中的方法"+methodName+"消耗时间为："+time);
        return result;
    }
}

该问题已被官方收录

继承JdbcDaoSupport通过bean配置连接数据库的时候出现INFO异常

0

1

spring

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

该问题已被官方收录

加载多个properties文件时，Spring只识别第一个

2

1

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

class="cursor-pointer"> 源码

<util:properties id="util_Spring" local-override="true" location="classpath:properties/until.properties"/>

    <bean id="qnOssUntil"
          class="com.jnshu.tools.QnOssUntil">
        <property name="accessKey" value="#{util_Spring['QNOSS.accessKey']}"/>
        <property name="secretKey" value="#{util_Spring['QNOSS.secretKey']}"/>
        <property name="bucket" value="#{util_Spring['QNOSS.bucket']}"/>
        <property name="bucketName" value="#{util_Spring['Cos.bucketName']}"/>
    </bean>

    <bean id="cosClient" class="com.qcloud.cos.COSClient">
        <constructor-arg name="clientConfig" ref="clientConfig"/>
        <constructor-arg name="cred" ref="cred"/>
    </bean>
    <bean name="cred" class="com.qcloud.cos.auth.BasicCOSCredentials">
        <constructor-arg name="accessKey" value="#{util_Spring['Cos.accessKey']}"/>
        <constructor-arg name="secretKey" value="#{util_Spring['Cos.secretKey']}"/>
        <constructor-arg name="appId" value="#{util_Spring['Cos.appid']}"/>
    </bean>
    <bean name="clientConfig" class="com.qcloud.cos.ClientConfig">
        <constructor-arg name="region" value="#{util_Spring['Cos.region']}"/>
    </bean>

<bean id="sendEmailUtil" class="com.jnshu.tools.SendEmailUtil">
    <property name="account" value="#{util_Spring['e.account']}"/>
    <property name="pass" value="#{util_Spring['e.pass']}"/>
    <property name="host" value="#{util_Spring['e.host']}"/>
    <property name="port" value="#{util_Spring['e.port']}"/>
    <property name="protocol" value="#{util_Spring['e.protocol']}"/>
</bean>

    <bean id="smsUtil" class="com.jnshu.tools.SmsUtil">
        <property name="appid" value="#{util_Spring['sms.appid']}"/>
        <property name="appkey" value="#{util_Spring['sms.appkey']}"/>
        <property name="templateId" value="#{util_Spring['sms.templateId']}"/>
        <property name="smsSign" value="#{util_Spring['sms.smsSign']}"/>
    </bean>

该问题已被官方收录

控制器无法跳转到指定页面

1

SSM

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

class="cursor-pointer"> 源码

@RequestMapping(path = "/register2")
    public String registerPage2() {
        return "/smsTest";
    }

spring 4.13   idea 2018.1.2

    <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

使用Spring AOP无法对controller类方法增强

2

1

aop

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 源码

@Aspect
@Component
public class LoggerAspect {

    private static Log logger = LogFactory.getLog(LoggerAspect.class);

    /*
    * execution 常用切入点指示符，匹配方法执行的连接点
    * */
    @Around(value = "execution(* com.jnshu.ssm.service.*Controller*.*(..))")

    public Object log(ProceedingJoinPoint joinPoint)throws Throwable{
//         定义返回对象
        Object object = null;
        long startTime = System.currentTimeMillis();
        try {
            object = joinPoint.proceed();
        }catch (Throwable e){
            logger.error("统计某方法执行耗时环绕通知出错!!",e);
        }
//        获得执行的方法名
        long endTime = System.currentTimeMillis();
        MethodSignature signature = (MethodSignature) joinPoint.getSignature();
        String methodName = signature.getDeclaringTypeName() + "." +signature.getName();
        Method methodname = signature.getMethod();
//        打印耗时的信息
        this.printExecTime(methodName,startTime,endTime,methodname);
        return object;
    }
    private void printExecTime(String methodName, long startTime, long endTime,Method methodname) {
        long diffTime = endTime - startTime;
        System.out.println("-----" + methodname + " 方法执行耗时：" + diffTime + " ms");
        logger.info("-----" + methodName + " 方法执行耗时：" + diffTime + " ms");
    }
}