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spring中操作mysql數據庫

lose jar sna mark 操作mysql red 分享 wordpress rac

就是在spring中,對mysql數據庫進行增刪改查的樣例,很easy。

文件結構

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maven的pom.xml文件,裏面用到的幾個很重要的jar包都有

<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>MySpring</groupId>
  <artifactId>MySpring</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <name>MySpring</name>
  <description>MySpring</description>
  
  <dependencies>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>4.1.0.RELEASE</version>
    </dependency>
    <dependency>
	<groupId>org.springframework</groupId>
	<artifactId>spring-jdbc</artifactId>
	<version>4.1.0.RELEASE</version>
</dependency>
<dependency> <groupId> mysql</groupId>
     <artifactId> mysql-connector-java</artifactId> 
     <version> 5.0.5</version>
      </dependency>

</dependencies>

  
</project>


操作類

package nx.database;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;

import javax.sql.DataSource;

public class StudentsDaoImpl implements StudentsDao{

	private DataSource dataSource;
	public DataSource getDataSource() {
		return dataSource;
	}
	
	public void setDataSource(DataSource dataSource) {
		this.dataSource = dataSource;
	}
	public void saveStudents() {

		Connection conn=null;
		PreparedStatement stmt=null;
		try {
			conn=dataSource.getConnection();
			stmt=conn.prepareStatement("INSERT INTO `data`.`student` (`id`, `name`) VALUES (NULL, ‘jiang‘);");
			stmt.execute();
			
			stmt.close();
			conn.close();
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		System.out.println("保存學生信息成功。");
	}

}


beans.xml(註意,數據庫的password替換成你自己的password)

<?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-2.5.xsd"> <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> <property name="driverClassName" value="com.mysql.jdbc.Driver"></property> <property name="url" value="jdbc:mysql://www.itbuluoge.com:3306/wordpress"></property> <property name="username" value="root"></property> <property name="password" value="1234451"></property> </bean> <bean id="userImpl" class="nx.database.StudentsDaoImpl"> <property name="dataSource" ref="dataSource"></property> </bean> </beans>





測試類

package nx.database;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Test {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		ApplicationContext ctx=new ClassPathXmlApplicationContext("nx/database/beans.xml");
		StudentsDaoImpl userImpl=(StudentsDaoImpl)ctx.getBean("userImpl");
		userImpl.saveStudents();
	}

}



在完畢後,查看數據庫,發現已經有了數據

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spring中操作mysql數據庫