SpringBoot（九）-- SpringBoot JDBC

1.属性配置文件（application.properties）

    # type 可以修改连接池类型，默认采用Tomcat的连接池
    # spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
    spring.datasource.url=jdbc:mysql://localhost:3306/consult
    spring.datasource.username=root
    spring.datasource.password=123456
    spring.datasource.driver-class-name=org.gjt.mm.mysql.Driver

2.pom.xml 配置maven依赖

    <!-- MYSQL -->
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
    </dependency>
    <!-- Spring Boot JDBC -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-jdbc</artifactId>
    </dependency>

3.Java查询示例

 import java.sql.ResultSet;
 import java.sql.SQLException;
 import java.util.List;
 import java.util.Map;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.jdbc.core.JdbcTemplate;
 import org.springframework.jdbc.core.RowMapper;
 import org.springframework.stereotype.Service;
 /**
 * service层
 */
 @Service
 public class CommonServiceImpl implements CommonService {
 
     // 注入JdbcTemplate
     @Autowired
     private JdbcTemplate jdbcTemplate;
 
     public List<ConsultContent> queryContent(Map map) {
         String sql = "select * from consult_content a where a.state = 0 and a.type = 1 order by a.itemindex";
         return jdbcTemplate.query(sql, new RowMapper<ConsultContent>() {
 
             public ConsultContent mapRow(ResultSet rs, int rowNum)
                     throws SQLException {
                 ConsultContent cc = new ConsultContent();
                 cc.setContent(rs.getString("content"));
                 cc.setId(rs.getInt("id"));
                 cc.setItemIndex(rs.getInt("itemIndex"));
                 cc.setState(rs.getInt("state"));
                 cc.setType(rs.getString("type"));
                 return cc;
             }
         });
     }
 }