以下内容引用自http://wiki.jikexueyuan.com/project/spring/jdbc-framework-overview/spring-jdbc-example.html

实现前提:

1、在MySql上新建数据库并导入相关数据,脚本如下:

--
-- 数据库: `test`
-- -- -------------------------------------------------------- --
-- 表的结构 `student`
-- CREATE TABLE IF NOT EXISTS `student` (
`ID` int(11) NOT NULL AUTO_INCREMENT,
`NAME` varchar(20) NOT NULL,
`AGE` int(11) NOT NULL,
PRIMARY KEY (`ID`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=10 ; --
-- 转存表中的数据 `student`
-- INSERT INTO `student` (`ID`, `NAME`, `AGE`) VALUES
(1, 'Zara', 11),
(2, 'Nuha', 2),
(3, 'Ayan', 15);

2、由于是操作MySql,所以还需要mysql-connector-java.jar包:

    <!-- mysql-connector-java -->
<!-- http://mvnrepository.com/artifact/mysql/mysql-connector-java -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>6.0.6</version>
</dependency>

实践例子:

pom.xml:

<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.jsoft.testspring</groupId>
<artifactId>testjdbc</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging> <name>testjdbc</name>
<url>http://maven.apache.org</url> <properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties> <dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency> <!-- Spring Core -->
<!-- http://mvnrepository.com/artifact/org.springframework/spring-core -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>4.1.4.RELEASE</version>
</dependency> <!-- Spring Context -->
<!-- http://mvnrepository.com/artifact/org.springframework/spring-context -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.1.4.RELEASE</version>
</dependency> <!-- Spring JDBC -->
<!-- http://mvnrepository.com/artifact/org.springframework/spring-jdbc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>4.1.4.RELEASE</version>
</dependency> <!-- Spring Transaction -->
<!-- http://mvnrepository.com/artifact/org.springframework/spring-tx -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>4.1.4.RELEASE</version>
</dependency> <!-- mysql-connector-java -->
<!-- http://mvnrepository.com/artifact/mysql/mysql-connector-java -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>6.0.6</version>
</dependency>
</dependencies>
</project>

Student.java:

package com.jsoft.testspring.testjdbc;

public class Student {
private Integer age;
private String name;
private Integer id; public void setAge(Integer age) {
this.age = age;
} public Integer getAge() {
return age;
} public void setName(String name) {
this.name = name;
} public String getName() {
return name;
} public void setId(Integer id) {
this.id = id;
} public Integer getId() {
return id;
}
}

StudentDAO.java:

package com.jsoft.testspring.testjdbc;

import java.util.List;
import javax.sql.DataSource; public interface StudentDAO { public void setDataSource(DataSource ds); public void create(String name, Integer age); public Student getStudent(Integer id); public List<Student> listStudents(); public void delete(Integer id); public void update(Integer id, Integer age);
}

StudentMapper.java:

package com.jsoft.testspring.testjdbc;

import java.sql.ResultSet;
import java.sql.SQLException; import org.springframework.jdbc.core.RowMapper; public class StudentMapper implements RowMapper<Student> { @Override
public Student mapRow(ResultSet rs, int arg1) throws SQLException {
// TODO Auto-generated method stub
Student student = new Student();
student.setId(rs.getInt("id"));
student.setName(rs.getString("name"));
student.setAge(rs.getInt("age"));
return student;
} }

提示:此类的作用是通过一行数据返回一个Student的对象。

StudentJDBCTemplate.java:

package com.jsoft.testspring.testjdbc;

import java.util.List;

import javax.sql.DataSource;

import org.springframework.jdbc.core.JdbcTemplate;

public class StudentJDBCTemplate implements StudentDAO {

    private DataSource dataSource;
private JdbcTemplate jdbcTemplateObject; @Override
public void setDataSource(DataSource dataSource) {
this.dataSource = dataSource;
this.jdbcTemplateObject = new JdbcTemplate(dataSource);
} @Override
public void create(String name, Integer age) {
String SQL = "insert into Student (name, age) values (?, ?)";
jdbcTemplateObject.update(SQL, name, age);
System.out.println("Created Record Name = " + name + " Age = " + age);
return;
} @Override
public Student getStudent(Integer id) {
String SQL = "select * from Student where id = ?";
Student student = jdbcTemplateObject.queryForObject(SQL, new Object[] { id }, new StudentMapper());
return student;
} @Override
public List<Student> listStudents() {
String SQL = "select * from Student";
List<Student> students = jdbcTemplateObject.query(SQL, new StudentMapper());
return students;
} @Override
public void delete(Integer id) {
String SQL = "delete from Student where id = ?";
jdbcTemplateObject.update(SQL, id);
System.out.println("Deleted Record with ID = " + id);
return;
} @Override
public void update(Integer id, Integer age) {
String SQL = "update Student set age = ? where id = ?";
jdbcTemplateObject.update(SQL, age, id);
System.out.println("Updated Record with ID = " + id);
return;
} }

提示:通过继承DAO接口实现相关方法。

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"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd"> <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://localhost:3306/test?serverTimezone=UTC"/>
<property name="username" value="root"/>
<property name="password" value="root"/>
</bean> <!-- Definition for studentJDBCTemplate bean -->
<bean id="studentJDBCTemplate" class="com.jsoft.testspring.testjdbc.StudentJDBCTemplate">
<property name="dataSource" ref="dataSource" />
</bean> </beans>

App.java:

package com.jsoft.testspring.testjdbc;

import java.util.List;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext; /**
* Hello world!
*
*/
public class App {
public static void main(String[] args) {
ApplicationContext context = new ClassPathXmlApplicationContext("beans.xml");
StudentJDBCTemplate studentJDBCTemplate = (StudentJDBCTemplate) context.getBean("studentJDBCTemplate");
System.out.println("------Records Creation--------");
studentJDBCTemplate.create("Zara", 11);
studentJDBCTemplate.create("Nuha", 2);
studentJDBCTemplate.create("Ayan", 15);
System.out.println("------Listing Multiple Records--------");
List<Student> students = studentJDBCTemplate.listStudents();
for (Student record : students) {
System.out.print("ID : " + record.getId());
System.out.print(", Name : " + record.getName());
System.out.println(", Age : " + record.getAge());
}
System.out.println("----Updating Record with ID = 2 -----");
studentJDBCTemplate.update(2, 20);
System.out.println("----Listing Record with ID = 2 -----");
Student student = studentJDBCTemplate.getStudent(2);
System.out.print("ID : " + student.getId());
System.out.print(", Name : " + student.getName());
System.out.println(", Age : " + student.getAge());
}
}

测试结果:

测试工程:https://github.com/easonjim/5_java_example/tree/master/springtest/test17/testjdbc

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