详解spring开发_JDBC操作MySQL数据库-eolink官网

详解spring开发_JDBC操作MySQL数据库

本文介绍spring开发_JDBC操作mysql数据库，具体如下：

项目结构：

数据库表：

/spring_1100_spring+jdbc/src/com/b510/bean/Person.java

package com.b510.bean;

/**

* 普通的javaBean类Person

* @author Hongten

public class Person {

/**

* id号

private int id;

/**

* 姓名

private String name;

/**

* 年龄

private int age;

/**

* 性别

private String sex;

public Person(int id, String name, int age, String sex) {

this.id = id;

this.name = name;

this.age = age;

this.sex = sex;

}

public Person() {

}

public int getId() {

return id;

}

public void setId(int id) {

this.id = id;

}

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public int getAge() {

return age;

}

public void setAge(int age) {

this.age = age;

}

public String getSex() {

return sex;

}

public void setSex(String sex) {

this.sex = sex;

}

/spring_1100_spring+jdbc/src/com/b510/service/PersonService.java

package com.b510.service;

import java.util.List;

import com.b510.bean.Person;

public interface PersonService {

/**

* 保存Person

* @param person

public abstract void save(Person person);

/**

* 更新Person

* @param person

public abstract void update(Person person);

/**

* 获取Person

* @param id

* @return

public abstract Person getPerson(Integer id);

/**

* 获取所有Person

* @return

public abstract List getPerson();

/**

* 删除指定id的Person

* @param id

public abstract void delete(Integer id);

}

/spring_1100_spring+jdbc/src/com/b510/service/impl/PersonServiceBean.java

package com.b510.service.impl;

import java.util.List;

import javax.sql.DataSource;

import org.springframework.jdbc.core.JdbcTemplate;

import com.b510.bean.Person;

import com.b510.service.PersonService;

/**

* 业务bean

* @author Hongten

public class PersonServiceBean implements PersonService {

/**

* 数据源

private DataSource dataSource;

/**

* spring提供的jdbc操作辅助类

private JdbcTemplate jdbcTemplate;

// 设置数据源

public void setDataSource(DataSource dataSource) {

this.jdbcTemplate = new JdbcTemplate(dataSource);

}

public void save(Person person) {

jdbcTemplate.update("insert into person(name,age,sex)values(?,?,?)",

new Object[] { person.getName(), person.getAge(),

person.getSex() }, new int[] { java.sql.Types.VARCHAR,

java.sql.Types.INTEGER, java.sql.Types.VARCHAR });

}

public void update(Person person) {

jdbcTemplate.update("update person set name=?,age=?,sex=? where id=?",

new Object[] { person.getName(), person.getAge(),

person.getSex(), person.getId() }, new int[] {

java.sql.Types.VARCHAR, java.sql.Types.INTEGER,

java.sql.Types.VARCHAR, java.sql.Types.INTEGER });

}

public Person getPerson(Integer id) {

Person person = (Person) jdbcTemplate.queryForObject(

"select * from person where id=?", new Object[] { id },

new int[] { java.sql.Types.INTEGER }, new PersonRowMapper());

return person;

}

@SuppressWarnings("unchecked")

public List getPerson() {

List list = jdbcTemplate.query("select * from person", new PersonRowMapper());

return list;

}

public void delete(Integer id) {

jdbcTemplate.update("delete from person where id = ?", new Object[] { id },

new int[] { java.sql.Types.INTEGER });

}

/spring_1100_spring+jdbc/src/com/b510/service/impl/PersonRowMapper.java

package com.b510.service.impl;

import java.sql.ResultSet;

import java.sql.SQLException;

import org.springframework.jdbc.core.RowMapper;

import com.b510.bean.Person;

public class PersonRowMapper implements RowMapper {

@Override

public Object mapRow(ResultSet set, int index) throws SQLException {

Person person = new Person(set.getInt("id"), set.getString("name"), set

.getInt("age"), set.getString("sex"));

return person;

}

/spring_1100_spring+jdbc/src/com/b510/test/SpringJDBCTest.java

package com.b510.test;

import java.util.List;

import org.springframework.context.ApplicationContext;

import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.b510.bean.Person;

import com.b510.service.PersonService;

public class SpringJDBCTest {

public static void main(String[] args) {

ApplicationContext act = new ClassPathXmlApplicationContext("bean.xml");

PersonService personService = (PersonService) act

.getBean("personService");

Person person = new Person();

person.setName("苏东坡");

person.setAge(21);

person.setSex("男");

// 保存一条记录

personService.save(person);

List person1 = personService.getPerson();

System.out.println("++++++++得到所有Person");

for (Person person2 : person1) {

System.out.println(person2.getId() + " " + person2.getName()

+ " " + person2.getAge() + " " + person2.getSex());

}

Person updatePerson = new Person();

updatePerson.setName("Divide");

updatePerson.setAge(20);

updatePerson.setSex("男");

updatePerson.setId(5);

// 更新一条记录

personService.update(updatePerson);

System.out.println("******************");

// 获取一条记录

Person onePerson = personService.getPerson(2);

System.out.println(onePerson.getId() + " " + onePerson.getName()

+ " " + onePerson.getAge() + " " + onePerson.getSex());

// 删除一条记录

personService.delete(1);

}

/spring_1100_spring+jdbc/src/bean.xml

xmlns:xsi="http://w3.org/2001/XMLSchema-instance" xmlns:context="http://springframework.org/schema/context"

xmlns:aop="http://springframework.org/schema/aop" xmlns:tx="http://springframework.org/schema/tx"

xsi:schemaLocation="http://springframework.org/schema/beans

http://springframework.org/schema/beans/spring-beans-2.5.xsd

http://springframework.org/schema/context http://springframework.org/schema/context/spring-context-2.5.xsd

http://springframework.org/schema/aop http://springframework.org/schema/aop/spring-aop-2.5.xsd

http://springframework.org/schema/tx http://springframework.org/schema/tx/spring-tx-2.5.xsd">

destroy-method="close">

value="jdbc:mysql://localhost:3307/spring?useUnicode=true&characterEncoding=UTF-8" />

class="org.springframework.jdbc.datasource.DataSourceTransactionManager">

xmlns:xsi="http://w3.org/2001/XMLSchema-instance" xmlns:context="http://springframework.org/schema/context"

xmlns:aop="http://springframework.org/schema/aop" xmlns:tx="http://springframework.org/schema/tx"

xsi:schemaLocation="http://springframework.org/schema/beans

http://springframework.org/schema/beans/spring-beans-2.5.xsd

http://springframework.org/schema/context http://springframework.org/schema/context/spring-context-2.5.xsd

http://springframework.org/schema/aop http://springframework.org/schema/aop/spring-aop-2.5.xsd

http://springframework.org/schema/tx http://springframework.org/schema/tx/spring-tx-2.5.xsd">

destroy-method="close">

value="jdbc:mysql://localhost:3307/spring?useUnicode=true&characterEncoding=UTF-8" />

destroy-method="close">

value="jdbc:mysql://localhost:3307/spring?useUnicode=true&characterEncoding=UTF-8" />

class="org.springframework.jdbc.datasource.DataSourceTransactionManager">

运行结果；

2012-3-9 23:30:57 org.springframework.context.support.AbstractApplicationContext prepareRefresh

信息: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@1a05308: display name [org.springframework.context.support.ClassPathXmlApplicationContext@1a05308]; startup date [Fri Mar 09 23:30:57 CST 2012]; root of context hierarchy

2012-3-9 23:30:57 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions

信息: Loading XML bean definitions from class path resource [bean.xml]

2012-3-9 23:30:58 org.springframework.context.support.AbstractApplicationContext obtainFreshBeanFactory

信息: Bean factory for application context [org.springframework.context.support.ClassPathXmlApplicationContext@1a05308]: org.springframework.beans.factory.support.DefaultListableBeanFactory@2bb514

2012-3-9 23:30:58 org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons

信息: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@2bb514: defining beans [dataSource,txManager,org.springframework.aop.config.internalAutoProxyCreator,org.springframework.transaction.annotation.AnnotationTransactionAttributeSource#0,org.springframework.transaction.interceptor.TransactionInterceptor#0,org.springframework.transaction.config.internalTransactionAdvisor,personService]; root of factory hierarchy

++++++++得到所有Person

2 TomCat 12 女

3 hongten 21 男

4 liufang 21 女

5 Divide 20 男

6 Jone 20 女

7 苏东坡 21 男

******************

2 TomCat 12 女

当然我们可以用配置文件来存放我们的数据源信息：

/spring_1100_spring+jdbc/src/jdbc.properties

driverClassName=org.gjt.mm.mysql.Driver

url=jdbc\:mysql://localhost\:3307/spring?useUnicode\=true&characterEncoding\=UTF-8

username=root

password=root

initialSize=1

maxActive=300

maxIdle=2

minIdle=1

相应要修改：

/spring_1100_spring+jdbc/src/bean.xml

xmlns:xsi="http://w3.org/2001/XMLSchema-instance" xmlns:context="http://springframework.org/schema/context"

xmlns:aop="http://springframework.org/schema/aop" xmlns:tx="http://springframework.org/schema/tx"

xsi:schemaLocation="http://springframework.org/schema/beans

http://springframework.org/schema/beans/spring-beans-2.5.xsd

http://springframework.org/schema/context http://springframework.org/schema/context/spring-context-2.5.xsd

http://springframework.org/schema/aop http://springframework.org/schema/aop/spring-aop-2.5.xsd

http://springframework.org/schema/tx http://springframework.org/schema/tx/spring-tx-2.5.xsd">

destroy-method="close">

class="org.springframework.jdbc.datasource.DataSourceTransactionManager">

xmlns:xsi="http://w3.org/2001/XMLSchema-instance" xmlns:context="http://springframework.org/schema/context"

xmlns:aop="http://springframework.org/schema/aop" xmlns:tx="http://springframework.org/schema/tx"

xsi:schemaLocation="http://springframework.org/schema/beans

http://springframework.org/schema/beans/spring-beans-2.5.xsd

http://springframework.org/schema/context http://springframework.org/schema/context/spring-context-2.5.xsd

http://springframework.org/schema/aop http://springframework.org/schema/aop/spring-aop-2.5.xsd

http://springframework.org/schema/tx http://springframework.org/schema/tx/spring-tx-2.5.xsd">

destroy-method="close">

class="org.springframework.jdbc.datasource.DataSourceTransactionManager">

运行结果是相同的：

2012-3-10 0:23:59 org.springframework.context.support.AbstractApplicationContext prepareRefresh

信息: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@c1b531: display name [org.springframework.context.support.ClassPathXmlApplicationContext@c1b531]; startup date [Sat Mar 10 00:23:59 CST 2012]; root of context hierarchy

2012-3-10 0:23:59 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions

信息: Loading XML bean definitions from class path resource [bean.xml]

2012-3-10 0:23:59 org.springframework.context.support.AbstractApplicationContext obtainFreshBeanFactory

信息: Bean factory for application context [org.springframework.context.support.ClassPathXmlApplicationContext@c1b531]: org.springframework.beans.factory.support.DefaultListableBeanFactory@1aa57fb

2012-3-10 0:23:59 org.springframework.core.io.support.PropertiesLoaderSupport loadProperties

信息: Loading properties file from class path resource [jdbc.properties]

2012-3-10 0:23:59 org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons

信息: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@1aa57fb: defining beans [org.springframework.beans.factory.config.PropertyPlaceholderConfigurer#0,dataSource,txManager,org.springframework.aop.config.internalAutoProxyCreator,org.springframework.transaction.annotation.AnnotationTransactionAttributeSource#0,org.springframework.transaction.interceptor.TransactionInterceptor#0,org.springframework.transaction.config.internalTransactionAdvisor,personService]; root of factory hierarchy

++++++++得到所有Person

2 TomCat 12 女

3 hongten 21 男

4 liufang 21 女

5 Divide 20 男

6 Jone 20 女

7 苏东坡 21 男

8 苏东坡 21 男

******************

2 TomCat 12 女

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205 2023-06-25

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