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mybatis搭建 ssm框架的时候，老是报一个错误

1

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

class="cursor-pointer"> 源码

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
        PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-config.dtd">
<!-- 参考官网：http://www.mybatis.org/mybatis-3/zh/configuration.html#settings -->
<configuration>
    <!-- 全局配置 -->
    <settings>
        <!-- 使用列标签代替列名 -->
        <setting name="useColumnLabel" value="true"/>
        <!--不允许 JDBC 支持自动生成主键-->
        <setting name="useGeneratedKeys" value="false"/>
        <!--是否开启自动驼峰命名规则（camel case）映射，即从经典数据库列名 A_COLUMN 到经典 Java 属性名 aColumn 的类似映射。 -->
        <setting name="mapUnderscoreToCamelCase" value="true"/>
    </settings>
</configuration>

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tiles无法展示页面

1

tiles

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

class="cursor-pointer"> 源码

<bean id="viewResolver" class="org.springframework.web.servlet.view.UrlBasedViewResolver" p:order="1">
        <property name="viewClass" value="org.springframework.web.servlet.view.tiles3.TilesConfigurer"/>
    </bean>

    <bean id="tilesConfigurer" class="org.springframework.web.servlet.view.tiles3.TilesConfigurer">
        <property name="definitions" value="/WEB-INF/tiles.xml"/>
    </bean>

org.springframework.beans.PropertyBatchUpdateException; nested PropertyAccessExceptions (1) are:
PropertyAccessException 1: org.springframework.beans.MethodInvocationException: Property 'viewClass' threw exception; nested exception is java.lang.IllegalArgumentException: Given view class [org.springframework.web.servlet.view.tiles3.TilesConfigurer] is not of type [org.springframework.web.servlet.view.AbstractUrlBasedView]
	org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:121)
	org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:75)
	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1564)
	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1276)
	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553)
	org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
	org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
	org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
	org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
	org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
	org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:761)
	org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867)
	org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:543)
	org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:668)
	org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:634)
	org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:682)
	org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:553)
	org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:494)
	org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:171)
	javax.servlet.GenericServlet.init(GenericServlet.java:158)
	org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
	org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:620)
	org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:502)
	org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1132)
	org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:684)
	org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2527)
	org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2516)
	java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	java.lang.Thread.run(Thread.java:748)

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Tuscany在tomcat中不能启动main方法

1

tuscany

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

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Memcache缓存加载，加载不成功

0

1

缓存相关

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

class="cursor-pointer"> 源码

 //查询所有数据信息
    @Override
    public List<Paper> queryAllPaper() throws Exception {
        List<Paper> paperList = memcachedClient.get("paperList");
        try {
            if (paperList != null) {
                logger.info("---从缓存中查询所有---");
                paperList =memcachedClient.get("paperList");
                logger.info("---从缓存查询ID等于448的记录:"+memcachedClient.get("448")+"---");
                logger.info("---从数据库查询ID等于448的记录:"+paperDao.queryById(448)+"---");
            } else {
                logger.info("---从数据库中查询所有---");
                paperList = paperDao.queryAllPaper();
                boolean list = memcachedClient.set("paperList", 0, paperList);
                logger.info("---新增所有数据缓存:" + list+"---");
                logger.info("---从缓存查询ID等于448的记录:"+memcachedClient.get("448")+"---");
                logger.info("---从数据库查询ID等于448的记录:"+paperDao.queryById(448)+"---");
            }
        } catch (Throwable t) {
            t.printStackTrace();
        }
        return paperDao.queryAllPaper();
    }



    //删除论文
    @Override
    public boolean deletePaperById(long id) throws Exception {
        boolean delete = false;
        logger.info("即将删除的id："+id);
        logger.info("memcachedClient.get(String.valueOf(id)):"+memcachedClient.get(String.valueOf(id)));
        if (memcachedClient.get(String.valueOf(id)) != null) {
            delete = memcachedClient.delete(String.valueOf(id));
            logger.info("---删除缓存数据：" + delete+"---");
        } else {
            logger.info("---没有该数据可以删除的数据---");
        }
        if (delete) {
            memcachedClient.flushAll();
            logger.info("---删除信息，刷新缓存---");

        }
        return paperDao.deletePaperById(id);
    }

[INFO ] 2018-08-17 06:39:49,253 method:com.controller.PaperController.queryAllPaper(PaperController.java:34) 跳转到查询所有数据页面.
[INFO ] 2018-08-17 06:39:49,254 method:com.aop.AopController.printExecTime(AopController.java:66) com.controller.PaperController.queryAllPaper Controller 类方法执行耗时: 852
17-Aug-2018 06:39:49.314 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory C:\Program Files\Apache Software Foundation\Tomcat 8.0\webapps\manager has finished in 76 ms
[INFO ] 2018-08-17 06:46:26,688 method:com.controller.PaperController.deleteUser(PaperController.java:55) controller:开始删除数据...
[INFO ] 2018-08-17 06:46:26,689 method:com.aop.AopImpl.timeAround(AopImpl.java:36) ---进入Database类方法切面中---

[INFO ] 2018-08-17 06:46:26,690 method:com.aop.AopImpl.timeAround(AopImpl.java:45) ---开始执行时间:2018-08-17 06:46:26
[INFO ] 2018-08-17 06:46:26,690 method:com.service.impl.PaperServiceImpl.deletePaperById(PaperServiceImpl.java:45) 即将删除的id：457
[INFO ] 2018-08-17 06:46:26,700 method:com.service.impl.PaperServiceImpl.deletePaperById(PaperServiceImpl.java:46) memcachedClient.get(String.valueOf(id)):null
[INFO ] 2018-08-17 06:46:26,712 method:com.service.impl.PaperServiceImpl.deletePaperById(PaperServiceImpl.java:51) ---没有该数据可以删除的数据---
[INFO ] 2018-08-17 06:46:35,238 method:com.aop.AopImpl.timeAround(AopImpl.java:36) ---进入Database类方法切面中---

[INFO ] 2018-08-17 06:46:35,239 method:com.aop.AopImpl.timeAround(AopImpl.java:45) ---开始执行时间:2018-08-17 06:46:35
[INFO ] 2018-08-17 06:46:45,866 method:org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:316) Loading XML bean definitions from class path resource [org/springframework/jdbc/support/sql-error-codes.xml]
[INFO ] 2018-08-17 06:46:45,896 method:org.springframework.jdbc.support.SQLErrorCodesFactory.<init>(SQLErrorCodesFactory.java:126) SQLErrorCodes loaded: [DB2, Derby, H2, HSQL, Informix, MS-SQL, MySQL, Oracle, PostgreSQL, Sybase]
[ERROR] 2018-08-17 06:46:45,907 method:com.aop.AopImpl.timeAround(AopImpl.java:50) ---统计DataBase方法执行耗时环绕通知出错---
org.springframework.dao.RecoverableDataAccessException: 
### Error updating database.  Cause: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet successfully received from the server was 416,483 milliseconds ago.  The last packet sent successfully to the server was 19,130 milliseconds ago.
### The error may involve com.dao.PaperDao.deletePaperById-Inline
### The error occurred while setting parameters
### SQL: DELETE FROM paper WHERE paper_id=?
### Cause: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet successfully received from the server was 416,483 milliseconds ago.  The last packet sent successfully to the server was 19,130 milliseconds ago.
; SQL []; Communications link failure

The last packet successfully received from the server was 416,483 milliseconds ago.  The last packet sent successfully to the server was 19,130 milliseconds ago.; nested exception is com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

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修改数据的时候数据填写完成后，后台接受到请求，但是无法修改成功

1

SSM

class="cursor-pointer"> 详细描述

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从网页上传图片后，要如何转换成InputStream流

2

1

图片上传

class="cursor-pointer"> 详细描述

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