宿命java 2020-02-22
<?xml version="1.0" encoding="UTF-8"?> <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.ly.spring</groupId> <artifactId>spring06</artifactId> <version>1.0-SNAPSHOT</version> <dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>5.0.2.RELEASE</version> </dependency> <!--JdbcTemplate--> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>5.0.2.RELEASE</version> </dependency> <!--事务--> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> <version>5.0.2.RELEASE</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.6</version> </dependency> <!--整合junit--> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>5.0.2.RELEASE</version> <scope>test</scope> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> <scope>test</scope> </dependency> </dependencies> <!--解决IDEA maven变更后自动重置LanguageLevel和JavaCompiler版本的问题--> <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>2.3.2</version> <configuration> <source>13</source> <target>13</target> </configuration> </plugin> </plugins> </build> </project>
package com.ly.spring.domain; import java.io.Serializable; public class Account implements Serializable { private int id; private int uid; private double money; public int getId() { return id; } public void setId(int id) { this.id = id; } public int getUid() { return uid; } public void setUid(int uid) { this.uid = uid; } public double getMoney() { return money; } public void setMoney(double money) { this.money = money; } @Override public String toString() { return "Account{" + "id=" + id + ", uid=" + uid + ", money=" + money + ‘}‘; } }
package com.ly.spring.dao; import com.ly.spring.domain.Account; import java.util.List; public interface IAccountDao { public List<Account> findAll(); public Account findOne(Integer id); public int saveAccount(Account account); public int updateAccount(Account account); public int deleteAccount(Integer id); public int findAccount(); }
package com.ly.spring.dao.impl; import com.ly.spring.dao.IAccountDao; import com.ly.spring.domain.Account; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.jdbc.core.BeanPropertyRowMapper; import org.springframework.jdbc.core.JdbcTemplate; import org.springframework.jdbc.core.support.JdbcDaoSupport; import org.springframework.stereotype.Repository; import javax.sql.DataSource; import java.util.List; @Repository("accountDao") public class AccountDaoImpl extends JdbcDaoSupport implements IAccountDao { //给JdbcDaoSupport注入DataSource @Autowired public AccountDaoImpl(DataSource dataSource) { super.setDataSource(dataSource); } @Override public List<Account> findAll() { return super.getJdbcTemplate().query("select * from account",new BeanPropertyRowMapper<Account>(Account.class)); } @Override public Account findOne(Integer id) { return super.getJdbcTemplate().queryForObject("select * from account where id = ?",new BeanPropertyRowMapper<Account>(Account.class),6); } @Override public int saveAccount(Account account) { return super.getJdbcTemplate().update("insert into account(id,uid,money) values(?,?,?)",account.getId(),account.getUid(),account.getMoney()); } @Override public int updateAccount(Account account) { return super.getJdbcTemplate().update("update account set money = ? where id = ?",account.getMoney(),account.getId()); } @Override public int deleteAccount(Integer id) { return super.getJdbcTemplate().update("delete from account where id = ?",id); } @Override public int findAccount() { return super.getJdbcTemplate().queryForObject("select count(1) from account",Integer.class); } }
jdbc.driver = com.mysql.jdbc.Driver jdbc.url = jdbc:mysql://localhost:3306/db01 jdbc.user = root jdbc.password = root
<?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"> <!--配置注解扫描包--> <context:component-scan base-package="com.ly.spring"></context:component-scan> <!--配置资源文件--> <context:property-placeholder location="classpath:db.properties"></context:property-placeholder> <!--配置数据源并注入相关属性--> <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> <property name="driverClassName" value="${jdbc.driver}"></property> <property name="url" value="${jdbc.url}"></property> <property name="username" value="${jdbc.user}"></property> <property name="password" value="${jdbc.password}"></property> </bean> </beans>
package com.ly.spring.test; import com.ly.spring.dao.IAccountDao; import com.ly.spring.domain.Account; import org.junit.Test; import org.junit.runner.RunWith; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.test.context.ContextConfiguration; import org.springframework.test.context.junit4.SpringJUnit4ClassRunner; import java.util.List; //替换junit的main方法 @RunWith(SpringJUnit4ClassRunner.class) //指定spring的配置文件的位置 @ContextConfiguration(locations = "classpath:bean.xml") public class MainTest { @Autowired private IAccountDao accountDao; @Test public void testFindAll() { List<Account> accounts = accountDao.findAll(); System.out.println(accounts); System.out.println("------"); } @Test public void testFindOne() { Account account = accountDao.findOne(52); System.out.println(account); } @Test public void testSaveAccount() { Account account = new Account(); account.setUid(51); account.setMoney(20000); accountDao.saveAccount(account); } @Test public void testUpdateAccount() { Account account = new Account(); account.setId(7); account.setMoney(100000); accountDao.updateAccount(account); } @Test public void testDeleteAccount() { accountDao.deleteAccount(7); } @Test public void testFindAccount() { int count = accountDao.findAccount(); System.out.println("count---"+count); } }