spring与Jdbc的操作

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beans.xml

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<?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:aop="http://www.springframework.org/schema/aop"       xmlns:tx="http://www.springframework.org/schema/tx"       xsi:schemaLocation="          http://www.springframework.org/schema/beans           http://www.springframework.org/schema/beans/spring-beans-2.5.xsd           http://www.springframework.org/schema/context            http://www.springframework.org/schema/context/spring-context-2.5.xsd           http://www.springframework.org/schema/aop           http://www.springframework.org/schema/aop/spring-aop-2.5.xsd           http://www.springframework.org/schema/tx           http://www.springframework.org/schema/tx/spring-tx-2.5.xsd           ">                      <!-- 利用spring提供的占位符的方式引用properties文件的数据 -->           <context:property-placeholder location="classpath:jdbc.properties"/>           <!-- dbcp数据源配置 -->           <bean id="dataSource" class=" org.apache.commons.dbcp.BasicDataSource" destroy-method="close">           <property name="driverClassName" value="${driverClassName}"></property>           <property name="url"            value="${url}">           </property>           <property name="username" value="${username}"></property>           <property name="password" value="${password}"></property>           <!-- 连接池启动时初始值 -->           <property name="initialSize" value="${initialSize}"></property>           <!-- 连接池的最大值 -->           <property name="maxActive" value="${maxActive}"></property>           <!-- 最大空闲值。当经过一个高峰时间后，连接池可以慢慢将已经用不到的连接慢慢释放一部分，一直减少到           maxIdle为止 -->           <property name="maxIdle" value="${maxIdle}"></property>           <!-- 最小空闲值。当空闲的连接数少于阀值时，连接池就会预申请一些去连接，以免洪峰来时来不及申请 -->           <property name="minIdle" value="${minIdle}"></property>                      </bean>                      <!-- 采用spring来管理数据源的事务 -->           <bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">           <property name="dataSource" ref="dataSource"></property>           </bean>                      <!-- 使用@Transactional注解方式使用事务 -->           <tx:annotation-driven transaction-manager="txManager"/>                      <bean id="personService" class="blog.service.impl.PersonServiceBean">           <property name="dataSource" ref="dataSource"></property>           </bean></beans>

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jdbc.properties

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url=jdbc\:mysql\://localhost\:3306/springandjdbc?useUnicode\=true&characterEncoding\=utf-8username=rootpassword=1234initialSize=1maxActive=500maxIdle=2minIdle=1driverClassName=org.gjt.mm.mysql.Driver

需要的jar包

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Person.java

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package blog.service.bean;public class Person {private Integer personId;private String name;public Integer getPersonId() {return personId;}public void setPersonId(Integer personId) {this.personId = personId;}public String getName() {return name;}public void setName(String name) {this.name = name;}public Person() {}public Person(String name) {this.name = name;}}

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PersonService.java

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package blog.service;import java.util.List;import blog.service.bean.Person;public interface PersonService {public void save(Person person);public void delete(Integer personId);public void update(Person person);public List<Person> getPersons();public Person getPerson(Integer personId);}

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PersonServiceBean.java

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package blog.service.impl;import java.util.List;import javax.sql.DataSource;import org.springframework.jdbc.core.JdbcTemplate;import org.springframework.transaction.annotation.Transactional;import blog.service.PersonService;import blog.service.bean.Person;@Transactionalpublic class PersonServiceBean implements PersonService {private JdbcTemplate jdbcTemplate;public void setDataSource(DataSource dataSource) {this.jdbcTemplate = new JdbcTemplate(dataSource);}@Overridepublic void delete(Integer personId) {jdbcTemplate.update("delete from person where id = ?", new Object[]{personId},new int[]{java.sql.Types.INTEGER});}@Overridepublic Person getPerson(Integer personId) {Person person =(Person) jdbcTemplate.queryForObject("select * from person where id = ?", new Object[]{personId},new int[]{java.sql.Types.INTEGER}, new PersonRowMapper());return person;}@SuppressWarnings("unchecked")@Overridepublic List<Person> getPersons() {List<Person> persons = jdbcTemplate.query("select * from person", new PersonRowMapper());return persons;}@Overridepublic void save(Person person) {jdbcTemplate.update("insert into person(name) values(?)", new Object[]{person.getName()}, new int[]{java.sql.Types.VARCHAR});}@Overridepublic void update(Person person) {jdbcTemplate.update("update  person set name = ? where id = ?", new Object[]{person.getName(),person.getPersonId()}, new int[]{java.sql.Types.VARCHAR,java.sql.Types.INTEGER});}}

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PersonRowMap.java

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package blog.service.impl;import java.sql.ResultSet;import java.sql.SQLException;import org.springframework.jdbc.core.RowMapper;import blog.service.bean.Person;public class PersonRowMapper implements RowMapper {@Override//if(rs.next())public Object mapRow(ResultSet rs, int rowNum) throws SQLException {Person person = new Person(rs.getString("name"));person.setPersonId(rs.getInt("id"));return person;}}

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junittest

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package junitTest;import java.util.List;import org.junit.BeforeClass;import org.junit.Test;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;import blog.service.PersonService;import blog.service.bean.Person;public class SpringAndJdbc {private static PersonService personService;@BeforeClasspublic static void setUpBeforeClass() throws Exception {try {ApplicationContext ctx = new ClassPathXmlApplicationContext("beans.xml");personService = (PersonService) ctx.getBean("personService");} catch (Exception e) {e.printStackTrace();}}@Testpublic void getBeans() {List<Person> persons = personService.getPersons();for (Person person : persons) {System.out.println(person.getName());}}@Testpublic void save(){Person person = new Person("Alice");person.setPersonId(3);personService.save(person);}@Testpublic void delete(){personService.delete(1);}@Testpublic void getBean(){Person person = personService.getPerson(1);System.out.println(person.getName());}@Testpublic void update(){Person person = new Person("Judy");person.setPersonId(2);personService.update(person);}}