一些常用的约束配置和依赖

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.itheima.dao.UserDao">
<select id="findAll" resultType="user">
select * from user
</select>
</mapper>

 

----------------------------------------------------------------------------------
Spring mvc（web.xml） ：

前端控制器配置
<!--前端控制器-->
<servlet>
<servlet-name>DispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!--springmvc配置文件的路径-->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc.xml</param-value>
</init-param>
<!--servlet的初始化时机-->
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>DispatcherServlet</servlet-name>
<!--处理除了jsp之外所有的请求-->
<url-pattern>/</url-pattern>
</servlet-mapping>

<!--配置字符编码过滤器-->
<filter>
<filter-name>CharacterEncodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<!--指定post请求的编码-->
<param-name>encoding</param-name>
<param-value>utf-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>CharacterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
=========================================================================================
Spri mvc （Spring.xml）配置加约束
<?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:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">
<mvc:annotation-driven conversion-service="conversionService2"></mvc:annotation-driven><!--开启注解支持-->
<context:component-scan base-package="com.itheima.web"></context:component-scan> <!--组件扫描包-->

<!--视图解析器-->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<!--前缀-->
<property name="prefix" value="/WEB-INF/pages/"/>

<!--后缀-->
<property name="suffix" value=".jsp"/>
</bean>
<!--1.将自定义转换器交给springmvc容器-->
<bean id="conversionService2" class="org.springframework.context.support.ConversionServiceFactoryBean">
<property name="converters">
<set>
<bean class="com.itheima.web.Converter.MyString2DateConverter"/>
</set>
</property>
</bean>

<mvc:default-servlet-handler/>
<!--让Spring mvc 不处理静态资源 css. js.html.mp3.mp4.(过滤)-->

===========================================================
配置拦截器
<!--配置拦截器-->
<mvc:interceptors>
<mvc:interceptor>
<!--
mapping标签的path配置对那些路径进行拦截,可以出现多次
支持通配符 *
/demo/* 只拦截demo下的二级路径 例如:/demo/test1和/demo/test2,但是不拦截/demo/test/test3
/demo/** 拦截demo下的所有路径 例如:/demo/test1 , /demo/test2,/demo/test/test3
exclude-mapping标签的path用来配置上面拦截的基础上放行那些路径,可以出现多次
-->
<mvc:mapping path="/demo/**"/>
<mvc:exclude-mapping path="/demo/test2"/>
<!--配置拦截器-->
<bean class="cn.itcast.web.interceptor.HelloInterceptor1"/>
</mvc:interceptor>
</mvc:interceptors>

</beans>

==============================//utf-8 pom依赖
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>

==============================================================
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"/> 文件解析器 前端做文件上传参数 等等必须用





==============================axios 发送json请求格式
<script>
document.querySelector("#btn0").onclick=function () {
/*
axios.get("ajax/test1?username=tom&age=18").then(resp=>{
console.log(resp.data);
console.log(resp.data.msg);
});*/

axios.get("${pageContext.request.contextPath}/ajax/test1",{
params:{
"username":"tom",
"age":18
}
}).then(resp=>{
console.log(resp.data);
console.log(resp.data.msg);
});
}

========================================================================================================================================
《SSM最终pom》
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>

<dependencies>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.2</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.1.5.RELEASE</version>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>5.1.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.9.2</version>
</dependency>

<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.32</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.0.9</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.5.1</version>
</dependency>

<!--测试-->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>5.1.5.RELEASE</version>
</dependency>

<!--日志-->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.21</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.12</version>
</dependency>

<!--spring整合mybatis-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.3.2</version>
</dependency>
</dependencies>
===================================================================
Mybites 配置映射文件文件

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.itheima.mapper.AccountMapper">
<select id="findAll" resultType="com.itheima.domain.Account">
select * from account
</select>
</mapper>
====================================
applicationContext.xml 配置（spring.xml）

<?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:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd">
<!--组件扫描-->
<context:component-scan base-package="com.itheima"/>

</beans>

=======================================================================（分模块构建项目）
Mapper层的(applicaition-mapper.xml)
<?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"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

<!--加载properties配置文件-->
<context:property-placeholder location="classpath:db.properties"/>
<!--配置数据源-->
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
<property name="driverClassName" value="${jdbc.username}"/>
<property name="url" value="${jdbc.url}"/>
<property name="username" value="${jdbc.username}"/>
<property name="password" value="${jdbc.password}"/>
</bean>
<!--配置sqlsessionFactory-->

<bean class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"/><!--注入连接池对象-->
<property name="typeAliasesPackage" value="com.itheima.pojo"/><!--配置别名-->
</bean>
<!--配置Mapper接口的代理对象 原来的Mybatis核心配置文件跟自已写的配置文件坐下映射-->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.itheima.mapper"/>
</bean>
</beans>

=====================================================================================================
SpringBoot 父类依赖和初始环境

<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.2.RELEASE</version>
</parent>

<dependencies>
<!--基础环境-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>

 

 

=================================================

Dubbo和Zookeeper的常用依赖

 

<!--dubbo的起步依赖-->
<dependency>
<groupId>org.apache.dubbo</groupId>
<artifactId>dubbo-spring-boot-starter</artifactId>
<version>2.7.5</version>
</dependency>
<!-- zookeeper的api管理依赖 -->
<dependency>
<groupId>org.apache.curator</groupId>
<artifactId>curator-recipes</artifactId>
<version>4.2.0</version>
</dependency>
<!-- zookeeper依赖 -->
<dependency>
<groupId>org.apache.zookeeper</groupId>
<artifactId>zookeeper</artifactId>
<version>3.4.12</version>
</dependency>