java开发配置文件集合

原创已于 2025-04-11 17:39:12 修改 · 216 阅读

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QiAn

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#java #开发语言

于 2024-12-29 22:26:14 首次发布

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1. mybatis

mybatis核心配置文件mybatis-config.xml：

<?xml version="1.0" encoding="GBK" ?>
<!DOCTYPE configuration
        PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
        "https://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
	<properties resource="db.properties"/>

	<settings>
		<!--标准的日志工厂实现-->
		<setting name="logImpl" value="STDOUT_LOGGING"/>
        <!--驼峰命名法-->
        <setting name="mapUnderscoreToCamelCase" value="true"/>
        <!--显示地开启全局缓存-->
        <setting name="cacheEnabled" value="true"/>
	</settings>	

	<typeAliases>
		<typeAlias type="com.wlp.pojo.User" alias="User"></typeAlias>
	</typeAliases>

    <environments default="development">
        <environment id="development">
            <transactionManager type="JDBC"/>
            <dataSource type="POOLED">
                <property name="driver" value="com.mysql.cj.jdbc.Driver"/>
                <property name="url" value="jdbc:mysql://localhost:3306/mybatis?useSSL=true&amp;useUnicode=true&amp;characterEncoding=UTF-8"/>
                <property name="username" value="root"/>
                <property name="password" value="mysq123"/>
            </dataSource>
        </environment>
    </environments>

    <!--    每一个Mapper.xml都需要在Mybatis核心配置文件中注册-->
    <mappers>
        <mapper resource="com/wlp/dao/UserMapper.xml"/>
    </mappers>

</configuration>

实体类mapper.xml文件（在resource目录下创建跟dao接口同样的目录，xml放在跟实体类Mapper.java同级的resource目录下）

<?xml version="1.0" encoding="GBK" ?>
<!DOCTYPE mapper
        PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
        "https://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.wlp.dao.TeacherMapper">

</mapper>

2. spring

resources下beans.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:p="http://www.springframework.org/schema/p"
       xmlns:c="http://www.springframework.org/schema/c"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
        https://www.springframework.org/schema/beans/spring-beans.xsd 
        http://www.springframework.org/schema/mvc 
        https://www.springframework.org/schema/mvc/spring-mvc.xsd
        http://www.springframework.org/schema/context
        https://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/aop 
        https://www.springframework.org/schema/aop/spring-aop.xsd">

    <!--开启注解的支持-->
    <context:annotation-config/>

<!--    使用Spring来创建对象，在Spring这些都成为Bean
        类型 变量名 = new 类型();
        Hello hello = new Hello();
        
        id = 变量名
        class = new 的对象；
        property 相当于给对象中的属性设置一个值！
        property中的 name 为变量名，value为具体属性值，ref 引用容器中创建好的对象
-->
    <bean id="hello" class="com.wlp.pojo.Hello">
        <property name="str" value="Spring"/>  Hello类中有个叫str的属性
    </bean>

    <bean id="mysqlServiceImpl" class="com.wlp.dao.MysqlServiceImpl"/>
    <bean id="userDaoImpl" class="com.wlp.dao.UserDaoImpl"/>
    <bean id="UserServiceImpl" class="com.wlp.service.UserServiceImpl">
        <property name="userDao" ref="mysqlServiceImpl"/>
    </bean>
</beans>

3. Spring整合mybatis

完整案例参考：Spring基础-优快云博客

UserMapper.xml

<?xml version="1.0" encoding="GBK" ?> 
<!DOCTYPE mapper 
    PUBLIC "-//mybatis.org//DTD Config 3.0//EN" 
	"https://mybatis.org/dtd/mybatis-3-mapper.dtd"> 
<!--namespace绑定一个对应的mapper接口--> 
<mapper namespace="com.wlp.mapper.UserMapper"> 
	<select id="getUser" resultType="User"> 
		select * from mybatis.user 
	</select> 
</mapper>

mybatis-config.xml

<?xml version="1.0" encoding="GBK" ?> 
<!DOCTYPE configuration 
    PUBLIC "-//mybatis.org//DTD Config 3.0//EN" 
	"https://mybatis.org/dtd/mybatis-3-config.dtd"> 
<configuration> 
	<typeAliases> 
		<package name="com.wlp.pojo"/> 
	</typeAliases> 
</configuration>

spring-dao.xml：用spring管理数据源、sqlSessionFactory等

<?xml version="1.0" encoding="GBK"?> 
<beans xmlns="http://www.springframework.org/schema/beans" 
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
	xmlns:p="http://www.springframework.org/schema/p" 
	xmlns:c="http://www.springframework.org/schema/c" 
	xmlns:aop="http://www.springframework.org/schema/aop" 
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
	https://www.springframework.org/schema/beans/spring-beans.xsd 
	http://www.springframework.org/schema/mvc 
	https://www.springframework.org/schema/mvc/spring-mvc.xsd 
	http://www.springframework.org/schema/aop 
	https://www.springframework.org/schema/aop/spring-aop.xsd"> 
	<!-- DataSource：使用Spring的数据源替代Mybatis的配置--> 
	<!-- 这里是用Spring提供的JDBC：org.springframework.jdbc.datasource--> 
	<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> 
		<property name="driverClassName" value="com.mysql.jdbc.Driver"/> 
		<property name="url" value="jdbc:mysql://localhost:3306/mybatis?useSSL=false&useUnicode=true&characterEncoding=UTF-8"/> 
		<property name="username" value="root"/> 
        <property name="password" value="mysq123"/> 
	</bean> 
	<!-- sqlSessionFactory--> 
	<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> 
		<property name="dataSource" ref="dataSource"/> 
		<!-- 绑定mybatis配置文件--> 
		<property name="configLocation" value="classpath:mybatis-config.xml"/> 
		<property name="mapperLocations" value="classpath:com/wlp/mapper/*.xml"/> 
	</bean> <!-- sqlSessionTemplate：就是使用的sqlSession--> 
	<bean id="sqlSession" class="org.mybatis.spring.SqlSessionTemplate"> 
		<!-- 只能用构造器注入sqlSessionFactory， 因为它没有set方法--> 
		<constructor-arg index="0" ref="sqlSessionFactory"/> 
	</bean> 

</beans>

applicationContext.xml

<?xml version="1.0" encoding="GBK"?> 
<beans xmlns="http://www.springframework.org/schema/beans" 
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
	xmlns:p="http://www.springframework.org/schema/p" 
	xmlns:c="http://www.springframework.org/schema/c" 
	xmlns:aop="http://www.springframework.org/schema/aop" 
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
		https://www.springframework.org/schema/beans/spring-beans.xsd 
		http://www.springframework.org/schema/mvc 
		https://www.springframework.org/schema/mvc/spring-mvc.xsd 
		http://www.springframework.org/schema/aop 
		https://www.springframework.org/schema/aop/spring-aop.xsd"> 
    <!--应用spring-dao.xml的配置-->
	<import resource="spring-dao.xml"/> 
	<bean id="userMapper" class="com.wlp.mapper.UserMapperImpl"> 
		<property name="sqlSession" ref="sqlSession"/> 
	</bean> 
</beans>

第二种方式：（不太建议使用）

新建UserMapperImpl2.java

public class UserMapperImpl2 extends SqlSessionDaoSupport implements UserMapper { 
	public List<User> getUser() { 
		UserMapper mapper = getSqlSession().getMapper(UserMapper.class); 
		return mapper.getUser(); 
	} 
}

SqlSessionDaoSupport类要有单参构造器，需要注入一个SqlSessionFactory.

所以需要在以下配置文件中注入 SqlSessionFactory，其中ref来自于spring-dao.xml 中注册的SqlSessionFactory实例。

applicationContext.xml中

<bean id="userMapper2" class="com.wlp.mapper.UserMapperImpl2"> 
	<property name="sqlSessionFactory" ref="sqlSessionFactory"/> 
</bean>

4. SpringMVC

web.xml文件：

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
         version="4.0">
    <!--    配置DispatcherServlet：这是SpringMVC的核心：请求分发器，前段控制器-->
    <servlet>
        <servlet-name>springmvc</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <!--        DispatcherServlet要绑定Spring的配置文件-->
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:springmvc-servlet.xml</param-value>
        </init-param>
        <!-- 启动级别：1 （跟服务器同时起来）-->
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>springmvc</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
	<filter>
		<filter-name>encoding</filter-name>
		<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
		<init-param>
			<param-name>encoding</param-name>
			<param-value>utf-8</param-value>
		</init-param>
	</filter>
	<filter-mapping>
		<filter-name>encoding</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>
</web-app>

springmvc-servlet.xml

<?xml version="1.0" encoding="UTF8"?>
<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
        https://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context
        https://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/mvc
        https://www.springframework.org/schema/mvc/spring-mvc.xsd">

    <!-- 自动扫描包，让指定包下的注解生效，由IOC容器统一管理-->
    <context:component-scan base-package="com.wlp.controller"/>
    <!--让Spring MVC不处理静态资源 .css  .js  .html  .mp3  .mp4-->
    <mvc:default-servlet-handler/>
    <!--注入处理器映射器DefaultAnnotationHandlerMapping和处理器适配器AnnotationMethodHandlerAdapter-->
    <mvc:annotation-driven/>
	<!--支持mvc注解驱动
	在spring中一般采用@RequestMapping注解来完成映射关系
	要想使@RequestMapping注解生效
	必须向上下文中注册DefaultAnnotationHandlerMapping和一个AnnotationMethodHandlerAdapter实例，
	这两个实例分别在类级别和方法级别处理，而annotation-driven配置帮助我们自动完成上述两个实例的注入。
	-->
    <!--    视图解析器：模板引擎ThymeLeaf  Freemarker-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" id="InternalResourceViewResolver">
        <!--        前缀-->
        <property name="prefix" value="/WEB-INF/jsp/"/>
        <!--        后缀-->
        <property name="suffix" value=".jsp"/>
    </bean>
</beans>