orcal 数据库 maven架构 ssh框架 的全xml环境模版 及常见异常解决
创建maven项目后,毫不犹豫,超简单傻瓜式搞定dependencies(pom.xml 就是maven的依赖管理),这样你就有了所有你要的包
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.swift</groupId>
<artifactId>ssh-maven</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging> <name>通用父工程</name>
<properties>
<spring.version>4.2.4.RELEASE</spring.version>
<struts2.version>2.3.24</struts2.version>
<hibernate.version>5.0.7.Final</hibernate.version>
<slf4j.version>1.6.6</slf4j.version>
<springdataredis.version>1.4.1.RELEASE</springdataredis.version>
<activemq.version>5.14.5</activemq.version>
<shiro.version>1.2.2</shiro.version>
<springdatajpa.version>1.10.4.RELEASE</springdatajpa.version>
<jedis.version>2.6.2</jedis.version>
<poi.version>3.11</poi.version>
<c3p0.version>0.9.1.2</c3p0.version>
<cxf.version>3.0.1</cxf.version>
<servlet.version>2.5</servlet.version>
<junit.version>4.11</junit.version>
</properties> <dependencies>
<!-- 权限控制 框架 -->
<dependency>
<groupId>org.apache.shiro</groupId>
<artifactId>shiro-all</artifactId>
<version>${shiro.version}</version>
</dependency> <!-- spring 框架 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency> <dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${spring.version}</version>
</dependency> <dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency> <dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${spring.version}</version>
</dependency> <dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jms</artifactId>
<version>${spring.version}</version>
</dependency> <dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
</dependency> <dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>${spring.version}</version>
</dependency> <!-- spring data jpa 数据库持久层 -->
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-jpa</artifactId>
<version>${springdatajpa.version}</version>
</dependency> <!-- 消息队列 MQ -->
<dependency>
<groupId>org.apache.activemq</groupId>
<artifactId>activemq-spring</artifactId>
<version>${activemq.version}</version>
</dependency>
<dependency>
<groupId>org.apache.activemq</groupId>
<artifactId>activemq-kahadb-store</artifactId>
<version>${activemq.version}</version>
</dependency>
<dependency>
<groupId>org.apache.activemq</groupId>
<artifactId>activemq-broker</artifactId>
<version>${activemq.version}</version>
</dependency>
<dependency>
<groupId>org.apache.activemq</groupId>
<artifactId>activemq-client</artifactId>
<version>${activemq.version}</version>
</dependency> <!-- struts2 框架 -->
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-core</artifactId>
<version>${struts2.version}</version>
<exclusions>
<exclusion>
<groupId>javassist</groupId>
<artifactId>javassist</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-spring-plugin</artifactId>
<version>${struts2.version}</version>
</dependency>
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-convention-plugin</artifactId>
<version>${struts2.version}</version>
</dependency> <!-- hibernate 框架 -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>${hibernate.version}</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>${hibernate.version}</version>
</dependency> <!-- 数据库连接池 -->
<dependency>
<groupId>com.mchange</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.5.2</version>
</dependency>
<dependency>
<groupId>com.mchange</groupId>
<artifactId>mchange-commons-java</artifactId>
<version>0.2.12</version>
</dependency>
<!-- 日志框架 -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${slf4j.version}</version>
</dependency> <!-- 工具包 -->
<dependency>
<groupId>commons-lang</groupId>
<artifactId>commons-lang</artifactId>
<version>2.6</version>
</dependency> <!-- redis nosql 内存数据库 -->
<dependency>
<groupId>redis.clients</groupId>
<artifactId>jedis</artifactId>
<version>${jedis.version}</version>
</dependency> <dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-redis</artifactId>
<version>${springdataredis.version}</version>
</dependency> <!-- oracle数据库驱动,需要手动安装 -->
<!-- <dependency> <groupId>com.oracle</groupId> <artifactId>ojdbc6</artifactId>
<version>11.2.0.1.0</version> </dependency> -->
<dependency>
<groupId>com.oracle</groupId>
<artifactId>ojdbc14</artifactId>
<version>10.2.0.1.0</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.6</version>
</dependency>
<!-- Excel解析工具类 -->
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<version>${poi.version}</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
<version>${poi.version}</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml-schemas</artifactId>
<version>${poi.version}</version>
</dependency> <!-- Servlet、JSP -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>${servlet.version}</version>
<scope>provided</scope>
</dependency> <!-- 单元测试 -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency> <!-- 导入webservice依赖 -->
<dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-rt-frontend-jaxws</artifactId>
<version>${cxf.version}</version>
</dependency> <dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-rt-transports-http</artifactId>
<version>${cxf.version}</version>
</dependency> <dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-rt-frontend-jaxrs</artifactId>
<version>${cxf.version}</version>
</dependency> <dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-rt-rs-client</artifactId>
<version>${cxf.version}</version>
</dependency> <dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-rt-rs-extension-providers</artifactId>
<version>${cxf.version}</version>
</dependency> <dependency>
<groupId>org.codehaus.jettison</groupId>
<artifactId>jettison</artifactId>
<version>1.3.7</version>
</dependency> <!-- 对象转为json 工具包 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.1.37</version>
</dependency> <dependency>
<groupId>com.colobu</groupId>
<artifactId>fastjson-jaxrs-json-provider</artifactId>
<version>0.3.1</version>
</dependency>
<!-- 引入json-lib的依赖 -->
<dependency>
<groupId>net.sf.json-lib</groupId>
<artifactId>json-lib</artifactId>
<version>2.4</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.belerweb/pinyin4j -->
<dependency>
<groupId>com.belerweb</groupId>
<artifactId>pinyin4j</artifactId>
<version>2.5.0</version>
</dependency>
<dependency>
<groupId>javax.mail</groupId>
<artifactId>mail</artifactId>
<version>1.4</version>
</dependency>
<dependency>
<groupId>redis.clients</groupId>
<artifactId>jedis</artifactId>
<version>${jedis.version}</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-redis</artifactId>
<version>1.4.1.RELEASE</version>
</dependency>
<!-- 缓存 -->
<dependency>
<groupId>net.sf.ehcache</groupId>
<artifactId>ehcache-core</artifactId>
<version>2.6.11</version>
</dependency>
<!-- 定时器|定时任务 -->
<dependency>
<groupId>org.quartz-scheduler</groupId>
<artifactId>quartz</artifactId>
<version>2.2.1</version>
</dependency>
<dependency>
<groupId>org.quartz-scheduler</groupId>
<artifactId>quartz-jobs</artifactId>
<version>2.2.1</version>
</dependency>
<!-- 阿里云发送短信涉及的jar包 -->
<dependency>
<groupId>com.aliyun</groupId>
<artifactId>aliyun-java-sdk-core</artifactId>
<version>3.2.9</version>
</dependency>
<!-- 该坐标,中央仓库中没有,需要手动导入到本地仓库才好使 -->
<dependency>
<groupId>com.aliyun</groupId>
<artifactId>aliyun-java-sdk-dysmsapi</artifactId>
<version>1.0.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jsp-api</artifactId>
<version>2.0</version>
<scope>provided</scope>
</dependency>
</dependencies> <build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
</plugins>
</build>
</project>
web端开始struts2
一个action
package com.swift.web; import com.opensymphony.xwork2.ActionSupport;
import com.swift.entity.Customer;
import com.swift.service.CustomerService; public class CustomerAction extends ActionSupport { private Integer cid;
private String name;
private Customer cus;
private CustomerService customerService; public void setName(String name) {
this.name = name;
}
public void setCustomerService(CustomerService customerService) {
this.customerService = customerService;
}
public Customer getCus() {
return cus;
}
public void setCid(Integer cid) {
this.cid = cid;
} public String findById() throws Exception { cus=customerService.findById(cid);
return "list";
}
public String add() throws Exception { Customer customer=new Customer();
customer.setName(name);
customerService.add(customer);
return "index";
}
}
配合struts.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
"http://struts.apache.org/dtds/struts-2.3.dtd"> <struts>
<package name="swift" extends="struts-default" namespace="/">
<action name="CustomerAction_*" class="customerAction" method="{1}">
<result name="list" type="dispatcher">list.jsp</result>
<result name="index" type="redirect">index.jsp</result>
</action>
</package>
</struts>
可以弄个网页先试试好用不(单独测struts不用spring整合,需要把上边的class="customerAction"修改为Action类的全限定名)
index.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
欢迎您登录首页 <hr />
<form action="${pageContext.request.contextPath }/CustomerAction_findById" method="post">
<span>请输入客户编号:</span>
<input type="text" name="cid" >
<input type="submit" value="查询" >
</form>
<hr />
<form action="${pageContext.request.contextPath }/CustomerAction_add" method="post">
<span>请录入客户姓名:</span>
<input type="text" name="name" >
<input type="submit" value="增加" >
</form>
</body>
</html>
显示结果页list.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<table>
<tr>
<td>编号:</td><td><input type="text" value="${cus.cid }"></td>
</tr>
<tr>
<td>姓名:</td><td><input type="text" value="${cus.name }"></td>
</tr>
</table>
</body>
</html>
需要开启struts的filter,(struts2就靠这个了)
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" version="2.5">
<display-name>ssh-maven</display-name>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping> <welcome-file-list>
<welcome-file>index.jsp</welcome-file>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
</web-app>
然后走到hibernate去,目录结构如下
实体类及其映射
package com.swift.entity; public class Customer { private Integer cid;
private String name;
public Integer getCid() {
return cid;
}
public void setCid(Integer cid) {
this.cid = cid;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
@Override
public String toString() {
return "Customer [cid=" + cid + ", name=" + name + "]";
}
public Customer(Integer cid, String name) {
this.cid = cid;
this.name = name;
}
public Customer() {
} }
Customer.hbm.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd"> <hibernate-mapping>
<class name="com.swift.entity.Customer" table="tb_customer" >
<id name="cid" column="cid">
<generator class="native"></generator>
</id>
<property name="name" column="name"></property>
</class>
</hibernate-mapping>
CustomerDaoImpl.java 持久层实现类
package com.swift.dao.impl; import org.springframework.orm.hibernate5.HibernateTemplate; import com.swift.dao.CustomerDao;
import com.swift.entity.Customer; public class CustomerDaoImpl implements CustomerDao{ HibernateTemplate hibernateTemplate; public void setHibernateTemplate(HibernateTemplate hibernateTemplate) {
this.hibernateTemplate = hibernateTemplate;
} public Customer findById(Integer cid) {
return hibernateTemplate.get(Customer.class, cid);
} @Override
public void add(Customer customer) { hibernateTemplate.save(customer);
} }
连接的库 db.properties
driverClass = oracle.jdbc.driver.OracleDriver
jdbcUrl=jdbc:oracle:thin:@192.168.189.101:1521:orcl
user=scott
password=tiger
#driverClass = com.mysql.jdbc.Driver
#jdbcUrl=jdbc:mysql://localhost:3306/maven
#user=root
#password=root
以及最后的spring核心配置文件进行整合
<?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:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd"> <context:property-placeholder location="classpath:db.properties"/>
<!-- dataSource数据源 -->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="${driverClass}"></property>
<property name="jdbcUrl" value="${jdbcUrl}"></property>
<property name="user" value="${user}"></property>
<property name="password" value="${password}"></property>
</bean>
<!-- SessionFactory -->
<bean id="sessionFactory"
class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource"></property>
<property name="configLocations" value="classpath:hibernate.cfg.xml"></property>
</bean>
<!-- hibernateTemplate -->
<bean id="hibernateTemplate" class="org.springframework.orm.hibernate5.HibernateTemplate">
<property name="sessionFactory" ref="sessionFactory"></property>
</bean>
<!-- 事务管理器 -->
<bean id="transactionManager"
class="org.springframework.orm.hibernate5.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory"></property>
</bean>
<!-- 事务的通知 -->
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="save*" propagation="REQUIRED" />
<tx:method name="update*" propagation="REQUIRED" />
<tx:method name="delete*" propagation="REQUIRED" />
<tx:method name="find*" read-only="true" />
<tx:method name="get*" read-only="true" />
<tx:method name="*" propagation="REQUIRED" />
</tx:attributes>
</tx:advice>
<!-- 事务通知跟切面组装 -->
<aop:config>
<aop:pointcut expression="execution (* com.swift.service.impl.*.*(..))"
id="pointcut"/>
<aop:advisor advice-ref="txAdvice" pointcut-ref="pointcut" />
</aop:config> <bean id="customerDao" class="com.swift.dao.impl.CustomerDaoImpl">
<property name="hibernateTemplate" ref="hibernateTemplate"></property>
</bean>
<bean id="customerService" class="com.swift.service.impl.CustomerServiceImpl">
<property name="customerDao" ref="customerDao"></property>
</bean>
<bean id="customerAction" class="com.swift.web.CustomerAction">
<property name="customerService" ref="customerService"></property>
</bean> </beans>
hibernate.cfg.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="hibernate.dialect">org.hibernate.dialect.Oracle10gDialect</property> <property name="hibernate.show_sql">true</property>
<property name="hibernate.format_sql">true</property>
<property name="hibernate.hbm2ddl.auto">update</property> <mapping resource="com/swift/entity/Customer.hbm.xml" />
</session-factory>
</hibernate-configuration>
常见异常解决
java.lang.ClassCastException: org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter cannot be cast to javax.servlet.Filter
这个异常要把servlet-api 改为provided
两个包都有相关内容会引起冲突,要把一个设置为从属(provided 级别低一级)
Line: 245 - com/opensymphony/xwork2/spring/SpringObjectFactory.java:245:-1
1.Struts与Spring不兼容,struts.xml中的action的class属性应注入Spring的bean
2.如果有struts2-spring-plugin-2.3.24.1.jar表明该插件引入工程后,会自动设置Struts的ObjectFactory为StrutsSpringObjectFactory,
从而让Spring的IOC容器来托管Struts的Action。但是工程web.xml中没有配置加载spring ApplicationContext相关的listener,所以导致了启动的问题。
ContextLoaderListener
java.sql.SQLException: ORA-00001: 违反唯一约束条件 (SCOTT.SYS_C0011456)
这个问题的原因是:customer.setCid(cid); 主键有自增或者sequence,与你提供的id冲突,执行添加操作hibernateTemplate.save(customer);时不设置customer
的id即可
orcal 数据库 maven架构 ssh框架 的全xml环境模版 及常见异常解决的更多相关文章
- orcal 数据库 maven架构 ssh框架 的全注解环境模版 maven中央仓库批量删除lastupdated文件后依然是lastupdated解决方法 mirror aliyun中央仓库
批量删除文件,得用批处理文件,文件名随便,路径改成你的Repository,代码如下 rem 这里写你的仓库路径 set REPOSITORY_PATH=d:\repo rem 正在搜索... for ...
- Maven 整合SSH框架之pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/20 ...
- Atitit 项目源码的架构,框架,配置与环境说明模板 规范 标准化
Atitit 项目源码的架构,框架,配置与环境说明模板 规范 标准化 版本1.0 作者 艾龙 attilax 1. 概述:核心业务: 1 1.1. 功能文档路径 /palmWin/src/docum ...
- ssh框架从页面传中文发生乱码时怎么解决,就是添加一个字符编码拦截器。用springframework自带的便可
ssh框架从页面传中文发生乱码时怎么解决,就是添加一个字符编码拦截器.用springframework自带的便可
- 使用 IDEA和Maven 整合SSH框架
1.创建web工程 一路next 下去就行.完成后,IDEA会自动构建maven工程. 2.创建如下项目结构 需要将 java文件夹设置为SourcesRoot目录,否则无法创建package 设置操 ...
- Maven 整合 SSH 框架
前面的一系列文章中,我们总结了三大框架:Struts2,Hibernate,Spring 的基本知识.本篇就姑且尝试着使用 Maven 这个项目构建工具来将这三个框架整合一起.说到这里,如果有对 Ma ...
- maven项目ssh框架的整合
1.环境 eclipse版本:Eclipse Mars2 4.5jdk版本:1.8maven版本:apache-maven 3.3.9zhnegs这是主要的开发工具版本,ssh的各种jar包版本就不列 ...
- maven学习记录三——maven整合ssh框架
6 整合ssh框架 6.1 依赖传递 只添加了一个struts2-core依赖,发现项目中出现了很多jar, 这种情况 叫 依赖传递 6.2 依赖版本冲突的解决 1. 第 ...
- 使用maven搭建SSH框架实现登陆、列表查询分页
SSH框架:struts2 + spring + hibernate web层:struts2+jsp service层:javaBean dao层:hibernate spring:管理Action ...
随机推荐
- HTTP协议笔记整理
有人说过,精通HTTP协议能赢过95%的前端工程师,所以我毅然的踏上这条路,哈哈哈,接下来把自己的学习笔记整理出来. 我会从比较底层的模型开始: 1.网络的五层模型 2.TCP/IP协议 3.HTTP ...
- 008Spring & JPA & Hibernate & MySQL
01下载免安装版MySQL 02安装MySQL a)将MySQL压缩包解压到合适的位置,以C:\programmer\Tools\mysql-5.7.20-winx64路径为例: b)新建系统变量,变 ...
- Android GridView显示SD卡的图片
GridView的XML布局: main.xml: <GridViewxmlns:android="http://schemas.android.com/apk/res/android ...
- Vue 框架-01- 入门篇 图文教程
Vue 框架-01- 入门篇 图文教程 Vue 官网:https://cn.vuejs.org/ 关于 Vue 的基础大家可以在官网的[起步]去学习,本系列文章主要针对实例项目应用 一.Vue 的安装 ...
- Python爬虫教程-08-post介绍(百度翻译)(下)
Python爬虫教程-08-post介绍(下) 为了更多的设置请求信息,单纯的通过urlopen已经不太能满足需求,此时需要使用request.Request类 构造Request 实例 req = ...
- Shell 编程备忘
变量使用 1. 定义变量: a=1 变量名=值 等号两端不能有空格 2. 变量值为数字或字符串,字符串 "this is adeom" 'this is a demo',双引号中可 ...
- Java多线程学习笔记(一)
一 概述 一个进程只有一个至少会运行一个线程,Java中同样存在这样,在调用main方法的时候,线程又JVM所创建. package link.summer7c.test; public class ...
- 如何检索某个字段在sqlserver中的哪个些存储过程中?很简单的SQL语句。
SELECT obj.Name 存储过程名, sc.TEXT 存储过程内容 FROM syscomments sc INNER JOIN sysobjects obj ON sc.Id = obj.I ...
- [翻译] IGLDropDownMenu
IGLDropDownMenu An iOS drop down menu with pretty animation. 一种iOS点击下拉菜单样式,动画效果很绚丽. Screenshot - 截图 ...
- 细嚼慢咽C++primer(5)——顺序容器
1 顺序容器的定义 容器是容纳特定类型对象的集合. 顺序容器:将单一类型元素聚集起来成为容器,然后根据位置来存储和访问这些元素,这就是顺序容器. 标准库的三种顺序容器类型:vector, list 和 ...