java連線資料庫配置
阿新 • • 發佈:2018-12-27
一, 連oracle
1, spring-mybatis.xml
其中讀取properties檔案的兩種方式略有不同:
1.1 util:properties方式
對應value值的讀取: value="#{jdbc['jdbc.driver']}
1.2 context:property-placeholder方式
對應value值的讀取: value="${jdbc.driver}
<?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:jdbc="http://www.springframework.org/schema/jdbc" xmlns:jee="http://www.springframework.org/schema/jee" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:util="http://www.springframework.org/schema/util" xmlns:jpa="http://www.springframework.org/schema/data/jpa" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.2.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa-1.3.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.2.xsd"> <!-- 載入配置檔案-1 --> <!-- <util:properties id="jdbc" location="classpath:conf/db.properties"/> --> <!-- 載入配置檔案-2 --> <context:property-placeholder location="classpath:conf/db.properties" /> <!-- 1.配置資料庫連線池 --> <!-- 1.1 直接設定引數 --> <!-- <bean id="dbcp" class="org.apache.commons.dbcp.BasicDataSource"> <property name="driverClassName" value="oracle.jdbc.OracleDriver"></property> <property name="url" value="jdbc:oracle:thin:@localhost:1521:XE"></property> <property name="username" value="system"></property> <property name="password" value="root"></property> </bean> --> <!-- 1.2 util:properties方式讀取properties檔案設定引數 --> <!-- <bean id="dbcp" class="org.apache.commons.dbcp.BasicDataSource"> <property name="driverClassName" value="#{jdbc['jdbc.driver']}"></property> <property name="url" value="#{jdbc['jdbc.url']}"></property> <property name="username" value="#{jdbc['jdbc.username']}"></property> <property name="password" value="#{jdbc['jdbc.password']}"></property> </bean> --> <!-- 1.3 context:property-placeholder方式讀取properties檔案設定引數 --> <bean id="dbcp" class="org.apache.commons.dbcp.BasicDataSource"> <property name="driverClassName" value="${jdbc.driver}"></property> <property name="url" value="${jdbc.url}"></property> <property name="username" value="${jdbc.username}"></property> <property name="password" value="${jdbc.password}"></property> </bean> <!-- 2.配置SqlSessionFactory處理類 --> <bean id="ssf" class="org.mybatis.spring.SqlSessionFactoryBean"> <!-- 指定連線池 --> <property name="dataSource" ref="dbcp"></property> <!-- 指定對映位置 --> <property name="mapperLocations" value="classpath:mapper/*.xml"/> </bean> <!-- 3.配置mapper掃描 --> <bean id="mapperScanner" class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="cn.tedu.test.dao"></property> </bean> </beans>
2, db.properties
jdbc.driver=oracle.jdbc.OracleDriver
jdbc.url=jdbc:oracle:thin:@localhost:1521:XE
jdbc.username=system
jdbc.password=root
3, jar包
ojdbc-14.jar等相關jar包
二, 連MySQL
和連線oracle類似, db.properties
jdbc.driver=com.mysql.jdbc.Driver jdbc.url=jdbc:mysql://localhost:3306/test?characterEncoding=utf-8 jdbc.username=root jdbc.password=123456aa