Spring+jdbc使用示例

短命女 2023-10-16 20:22 85阅读 0赞

**myeclipse10使用spring框架结合jdbc操作数据库**

**步骤：**

**1、引入必要的jar包，使用到了如下的jar包**

**spring.jar**

**aspectjrt.jar**

**aspectjweaver.jar**

**cglib-nodep-2.1.3.jar**

**common-annotations.jar**

**common-logging.jar**

**common-dbcp.jar**

**common-pool.jar**

**mysql-connector-java-5.1.13.jar**

**2、配置命名空间**

**3、配置数据源**

**使用的是从properties读取属性，下面蓝色部分是引入属性文件必要的代码，其中**

jdbc.properties是属性文件的名称。

<context:property-placeholder location="classpath:jdbc.properties"/> 
 		<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
 		 <property name="driverClassName" value="${driverClassName}"/>
 		 <property name="url" value="${url}"/>
 		 <property name="username" value="${username}"/>
 		 <property name="password" value="${password}"/>
 		 
 			 <property name="initialSize" value="${initialSize}"/>
 			 
 			 <property name="maxActive" value="${maxActive}"/>
 			 
 			 <property name="maxIdle" value="${maxIdle}"/>
 			 
 			 <property name="minIdle" value="${minIdle}"/>
 	 </bean>

下面是主要的文件的源代码：

**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: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">
 <context:property-placeholder location="classpath:jdbc.properties"/> 
 		<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
 		 <property name="driverClassName" value="${driverClassName}"/>
 		 <property name="url" value="${url}"/>
 		 <property name="username" value="${username}"/>
 		 <property name="password" value="${password}"/>
 		 
 			 <property name="initialSize" value="${initialSize}"/>
 			 
 			 <property name="maxActive" value="${maxActive}"/>
 			 
 			 <property name="maxIdle" value="${maxIdle}"/>
 			 
 			 <property name="minIdle" value="${minIdle}"/>
 	 </bean>
 	 
 	 <bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
 	 	<property name="dataSource" ref="dataSource"></property>
 	 </bean>
 	 
 	 <tx:annotation-driven transaction-manager="txManager"/>
 	 
 	 <bean id="personService" class="com.gdhdcy.service.impl.PersonServiceBean">
 	 	<property name="dataSource" ref="dataSource"></property>
 	 </bean>
 	 
 </beans>

jdbc.properties文件

driverClassName=org.gjt.mm.mysql.Driver
    url=jdbc\:mysql\://localhost\:3306/person?useUnicode\=true&characterEncoding\=UTF-8
    username=root
    password=root
    initialSize=1
    maxActive=500
    maxIdle=2
    minIdle=1

数据库实现增删查改的java文件

package com.gdhdcy.service.impl;
 
 import java.util.List;
 
 import javax.sql.DataSource;
 
 import org.springframework.jdbc.core.JdbcTemplate;
 import org.springframework.transaction.annotation.Transactional;
 
 import com.gdhdcy.bean.Person;
 import com.gdhdcy.service.PersonService;
 
 //声明事务,这样就会自动的打开事务和关闭事务
 @Transactional
 public class PersonServiceBean implements PersonService {
 	private JdbcTemplate jdbcTemplate;
 	
 	public void setDataSource(DataSource dataSource) {
 		this.jdbcTemplate = new JdbcTemplate(dataSource);
 	}
 
 	public void delete(Integer personid) {
 		jdbcTemplate.update("delete from person where id=?", new Object[]{personid},
 				new int[]{java.sql.Types.INTEGER});
 	}
 
 	public Person getPerson(Integer personid) {		
 		return (Person)jdbcTemplate.queryForObject("select * from person where id=?", new Object[]{personid}, 
 				new int[]{java.sql.Types.INTEGER}, new PersonRowMapper());
 	}
 
 	@SuppressWarnings("unchecked")
 	public List<Person> getPersons() {
 		return (List<Person>)jdbcTemplate.query("select * from person", new PersonRowMapper());
 	}
 
 	public void save(Person person) {
 		
 		jdbcTemplate.update("insert into person(name) values(?)", new Object[]{person.getName()},
 				new int[]{java.sql.Types.VARCHAR});
 		System.out.println("保存成功");
 	}
 
 	public void update(Person person) {
 		jdbcTemplate.update("update person set name=? where id=?", new Object[]{person.getName(), person.getId()},
 				new int[]{java.sql.Types.VARCHAR, java.sql.Types.INTEGER});
 	}
 }

下面是完整源代码下载链接

**[http://pan.baidu.com/s/1ntG6T3z][http_pan.baidu.com_s_1ntG6T3z]**

**下载文件直接导入到您的myeclipse,然后建立mysql的数据库（数据库文件也在代码文件夹中）。**

[http_pan.baidu.com_s_1ntG6T3z]: http://pan.baidu.com/s/1ntG6T3z