1.導入spring-jdbc和spring-tx坐標

<dependency><groupId>junit</groupId><artifactId>junit</artifactId><version>4.13</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-test</artifactId><version>5.0.5.RELEASE</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-context</artifactId><version>5.0.5.RELEASE</version></dependency><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>8.0.19</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-jdbc</artifactId><version>5.0.9.RELEASE</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-tx</artifactId><version>5.0.9.RELEASE</version></dependency><dependency><groupId>com.mchange</groupId><artifactId>c3p0</artifactId><version>0.9.5.2</version></dependency>

2.創建數據庫表和實體類

public class Account {private String name;private double money;public String getName() {return name;}public void setName(String name) {this.name = name;}public double getMoney() {return money;}public void setMoney(double money) {this.money = money;} }

3.創建數據庫表

4.配置jdbc.properties資源文件

jdbc.driver=com.mysql.cj.jdbc.Driver jdbc.url=jdbc:mysql://localhost:3306/test?serverTimezone=UTC jdbc.username=root jdbc.password=hao20001010

5.將數據源和模板交給到spring管理

<?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.xsdhttp://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <!--加載資源文件--><context:property-placeholder location="jdbc.properties"/> <!-- 配置數據域對象--><bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"><property name="driverClass" value="${jdbc.driver}"/><property name="jdbcUrl" value="${jdbc.url}"/><property name="user" value="${jdbc.username}"/><property name="password" value="${jdbc.password}"/></bean> <!-- Jdbc模板對象--><bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate"><property name="dataSource" ref="dataSource"/></bean> </beans>

6.測試

@Test//測試spring產生的jdbcTemplate對象public void test2(){ApplicationContext app=new ClassPathXmlApplicationContext("applicationContext.xml");JdbcTemplate jdbcTemplate = app.getBean(JdbcTemplate.class);int row=jdbcTemplate.update("insert into account values(?,?)","tom",2000);System.out.println(row);}

結果：1

總結

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