Spring JDBC

使用Spring框架访问数据库首先要导入节点

下面以MySQL为例

//事务
 <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-tx</artifactId>
      <version>4.3.3.RELEASE</version>
    </dependency>
//数据库驱动jar
    <dependency>
      <groupId>org.wisdom-framework</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>5.1.34_1</version>
    </dependency>
//Spring jdbc
 <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>4.3.3.RELEASE</version>
    </dependency>

2.在xml文件中配置dataSource

   <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"
 　　p:driverClassName="com.mysql.jdbc.Driver" 
　　 p:url="jdbc:mysql:///book"
　　 p:username="root" 
　 　p:password="xxxxxxx">
    </bean>

3.注入JdbcTemplate

 <bean class="org.springframework.jdbc.core.JdbcTemplate" p:dataSource-ref="dataSource">
    </bean>

4.编写实体类

package book.entity;

/**
 * Created by Administrator on 2017/3/30/030.
 */
public class Book {
    private Integer bId;
    private String bName;
    private double bPrice;

    public Integer getbId() {
        return bId;
    }

    public void setbId(Integer bId) {
        this.bId = bId;
    }

    public String getbName() {
        return bName;
    }

    public void setbName(String bName) {
        this.bName = bName;
    }

    public double getbPrice() {
        return bPrice;
    }

   }

5.编写dao层接口

package book.dao;

import book.entity.Book;

import java.util.List;

/**
 * Created by Administrator on 2017/3/30/030.
 */
public interface IBookDao {
    int addBook(Book book);
    List<Book> bookList();
}

6.编写RowMapper类用于解析结果集生成泛型

package book.dao.impl;

import book.entity.Book;
import org.springframework.jdbc.core.RowMapper;

import java.sql.ResultSet;
import java.sql.SQLException;

/**
 * Created by Administrator on 2017/3/30/030.
 */
public class BookRowMap implements RowMapper<Book> {
    @Override
    public Book mapRow(ResultSet resultSet, int i) throws SQLException {
        Book book=new Book();
        book.setbName(resultSet.getString("bname"));
        book.setbId(resultSet.getInt("bid"));
        book.setbPrice(resultSet.getDouble("bprice"));
        return book;
    }
}

7.编写dao实现类

package book.dao.impl;

import book.dao.IBookDao;
import book.entity.Book;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.support.JdbcDaoSupport;
import org.springframework.stereotype.Repository;

import javax.annotation.Resource;
import java.util.List;

/**
 * Created by Administrator on 2017/3/30/030.
 */

@Repository
public class BookDaoImpl extends JdbcDaoSupport implements  IBookDao {
添加图书
    @Override
    public int addBook(Book book) {
        String sql="insert into book(bname,bprice) values (?,?)";
        getJdbcTemplate().update(sql,book.getbName(),book.getbPrice());
        return getJdbcTemplate().update(sql,book.getbName(),book.getbPrice());
    }
//查询全部图书
    @Override
    public List<Book> bookList() {
        String sql="select * from book";
        return  getJdbcTemplate().query(sql,new BookRowMap());
    }

    @Resource
    public void setJdbcTemplate1(JdbcTemplate jdbcTemplate){
        super.setJdbcTemplate(jdbcTemplate);
    }
}

8.编写service层接口

package book.service;

import book.entity.Book;

import java.util.List;

/**
 * Created by Administrator on 2017/3/30/030.
 */
public interface IBookService {
    int addBook(Book book);
    List<Book> bookList();
}

9.编写service实现类

package book.service.impl;

import book.dao.IBookDao;
import book.entity.Book;
import book.service.IBookService;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.util.List;

/**
 * Created by Administrator on 2017/3/30/030.
 */
@Service("service")
public class BookServiceImpl implements IBookService {
    @Resource
    private IBookDao bookDao;
    @Override
    public int addBook(Book book) {
        return bookDao.addBook(book) ;
    }

    @Override
    public List<Book> bookList() {
        return bookDao.bookList();
    }

}

10.编写测试类

package book.test;

import book.entity.Book;
import book.service.IBookService;
import book.service.impl.BookServiceImpl;
import cn.lhl.Prienter.Prienter;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import java.util.List;

/**
 * Created by Administrator on 2017/3/30/030.
 */
public class BookTest {
    @Test
    public void add(){
        ApplicationContext context=new ClassPathXmlApplicationContext("applicationContext3.xml");
        IBookService service= (IBookService)context.getBean("service");
        Book book =new Book();
        book.setbName("深入Xml");
        book.setbPrice(189.6);
        System.out.println(service.addBook(book));
    }
    @Test
    public void info(){
        ApplicationContext context=new ClassPathXmlApplicationContext("applicationContext3.xml");
        IBookService service= (IBookService)context.getBean("service");
        List<Book> book=service.bookList();
        for (Book item: book) {
            System.out.println(item.getbName());
        }
    }
}