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C3P0数据库连接问题

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1

JDBC

class="cursor-pointer"> 详细描述

业务层接口和业务层接口的实现类是怎么写的？

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1

DB设计

class="cursor-pointer"> 详细描述

如何将maven项目导出成包？用于放云服务器上部署。

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1

maven

class="cursor-pointer"> 详细描述

关于spring mvc的404报错

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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"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
      http://www.springframework.org/schema/beans/spring-beans-4.1.xsd
      http://www.springframework.org/schema/context
      http://www.springframework.org/schema/context/spring-context-4.1.xsd
      http://www.springframework.org/schema/mvc
      http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd">

    <mvc:annotation-driven/>

    <context:component-scan base-package="java"/>

    <context:annotation-config/>

    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/jsp/"/>
        <property name="suffix" value=".jsp" />
    </bean>

</beans>

如何在Linux（Ubuntu）系统的阿里云服务器上部署maven的项目包？

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linux命令

class="cursor-pointer"> 详细描述

navicat无法连接服务器mysql

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数据库

class="cursor-pointer"> 详细描述

JDBC的url参数影响插入执行时间

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1

JDBC

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 源码

jdbc.driver= com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/immortal_task?&rewriteBatchedStatements=true&characterEncoding=UTF-8&&useUnicode=TRUE&
jdbc.uid=root
jdbc.password=littlecat


    <!-- 增，不需要返回值 -->
    <!-- 增加返主键值属性 -->
    <insert id="insertUser" parameterType="bean.User" useGeneratedKeys="true" keyColumn="id" keyProperty="id">
        insert INTO registration(name, age, qq, address)
            values (#{name,jdbcType=VARCHAR}, #{age,jdbcType=INTEGER}, #{qq,jdbcType=INTEGER}, #{address,jdbcType=VARCHAR})
    </insert>

tiles模板问题

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1

tiles

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 源码

<%@ taglib prefix="tiles" uri="http://tiles.apache.org/tags-tiles" %>
<%@ page  pageEncoding="UTF-8" contentType="text/html;charset=UTF-8" language="java" %>
<!DOCTYPE html>
<html lang="en">
<head>
    <tiles:insertAttribute name="head"/>
</head>
<body>
<tiles:insertAttribute name="header"/>
<tiles:insertAttribute name="body"/>
<tiles:insertAttribute name="footer"/>
</body>

</html>

resin跑不通，jetty和Tomcat都没问题

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class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

为什么linux的删除目录命令会报错？

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linux命令

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图