springboot可以使用JdbcTemplate进行数据库访问，代码如下

添加pom文件

 <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.0.5.RELEASE</version> </parent> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <maven.compiler.source>1.8</maven.compiler.source> <maven.compiler.target>1.8</maven.compiler.target> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.45</version> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-jdbc</artifactId> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build></project>

代码如下

CREATE TABLE if NOT EXISTS springboot.student(stu_no INT ,name VARCHAR(20),age INT)

package com.rookie.bigdata.domain;/** * @author * @date 2018/10/9 */public class Student { private Long stuNo; private String name; private Integer age; public Long getStuNo() { return stuNo; } public void setStuNo(Long stuNo) { this.stuNo = stuNo; } public String getName() { return name; } public void setName(String name) { this.name = name; } public Integer getAge() { return age; } public void setAge(Integer age) { this.age = age; } @Override public boolean equals(Object o) { if (this == o) return true; if (o == null || getClass() != o.getClass()) return false; Student student = (Student) o; if (stuNo != null ? !stuNo.equals(student.stuNo) : student.stuNo != null) return false; if (name != null ? !name.equals(student.name) : student.name != null) return false; return age != null ? age.equals(student.age) : student.age == null; } @Override public int hashCode() { int result = stuNo != null ? stuNo.hashCode() : 0; result = 31 * result + (name != null ? name.hashCode() : 0); result = 31 * result + (age != null ? age.hashCode() : 0); return result; } @Override public String toString() { return "Student{" + "stuNo=" + stuNo + ", name=‘" + name + ‘\‘‘ + ", age=" + age + ‘}‘; }}

View Code

package com.rookie.bigdata.service;import com.rookie.bigdata.domain.Student;/** * @author * @date 2018/10/9 */public interface StudentService { /** * 添加一个学生 * * @param student */ void create(Student student); /** * 删除一个学生 * * @param stuNo */ void deleteByNo(Integer stuNo); /** * 查询学生 * * @param stuNo */ Integer queryByStuNo(Integer stuNo);}

package com.rookie.bigdata.service;import com.rookie.bigdata.domain.Student;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.jdbc.core.JdbcTemplate;import org.springframework.stereotype.Service;/** * @author * @date 2018/10/9 */@Servicepublic class StudentServiceImpl implements StudentService { @Autowired private JdbcTemplate jdbcTemplate; @Override public void create(Student student) { jdbcTemplate.update("INSERT INTO student(stu_no,name,age)VALUE (?,?,?)", student.getStuNo(), student.getName(), student.getAge()); } @Override public void deleteByNo(Integer stuNo) { jdbcTemplate.update("DELETE FROM student WHERE stu_no=?", stuNo); } @Override public Integer queryByStuNo(Integer stuNo) { return jdbcTemplate.queryForObject("select count(1) from student", Integer.class); }}

application.properties

spring.datasource.url=jdbc:mysql://localhost:3306/springbootspring.datasource.username=rootspring.datasource.password=rootspring.datasource.driver-class-name=com.mysql.jdbc.Driver

测试代码如下：

package com.rookie.bigdata.service;import com.rookie.bigdata.domain.Student;import org.junit.Test;import org.junit.runner.RunWith;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.boot.test.context.SpringBootTest;import org.springframework.test.context.junit4.SpringRunner;import static org.junit.Assert.*;/** * @author * @date 2018/10/9 */@RunWith(SpringRunner.class)@SpringBootTestpublic class StudentServiceImplTest { @Autowired private StudentServiceImpl studentService; @Test public void create1() throws Exception { Student student = new Student(); student.setStuNo(1L); student.setName("张三"); student.setAge(23); studentService.create(student); } @Test public void deleteByName1() throws Exception { studentService.deleteByNo(1); } @Test public void queryByStuNo1() throws Exception { System.out.println(studentService.queryByStuNo(1)); }}