spring.datasource.url=jdbc:mysql://localhost:3306/test
spring.datasource.username=root
spring.datasource.password=123456
spring.datasource.driver-class-name=com.mysql.jdbc.Driver

spring.datasource.jndi-name=java:tomcat/datasources/example 

    <!-- 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>

package org.springboot.sample.service;

import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.List;

import org.springboot.sample.entity.Student;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.RowMapper;
import org.springframework.stereotype.Service;

/**
 * Studeng Service
 *
 * @author  单红宇(365384722)
 * @create  2016年1月12日
 */
@Service
public class StudentService {

  @Autowired
  private JdbcTemplate jdbcTemplate;

  public List<Student> getList(){
    String sql = "SELECT ID,NAME,SCORE_SUM,SCORE_AVG, AGE  FROM STUDENT";
    return (List<Student>) jdbcTemplate.query(sql, new RowMapper<Student>(){

      @Override
      public Student mapRow(ResultSet rs, int rowNum) throws SQLException {
        Student stu = new Student();
        stu.setId(rs.getInt("ID"));
        stu.setAge(rs.getInt("AGE"));
        stu.setName(rs.getString("NAME"));
        stu.setSumScore(rs.getString("SCORE_SUM"));
        stu.setAvgScore(rs.getString("SCORE_AVG"));
        return stu;
      }

    });
  }
}

package org.springboot.sample.entity;

import java.io.Serializable;

/**
 * 学生实体
 *
 * @author  单红宇(365384722)
 * @create  2016年1月12日
 */
public class Student implements Serializable{

  private static final long serialVersionUID = 2120869894112984147L;

  private int id;
  private String name;
  private String sumScore;
  private String avgScore;
  private int age;

  // 节省文章长度，get set 方法省略
}

package org.springboot.sample.controller;

import java.util.List;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springboot.sample.entity.Student;
import org.springboot.sample.service.StudentService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping("/stu")
public class StudentController {

  private static final Logger logger = LoggerFactory.getLogger(StudentController.class);

  @Autowired
  private StudentService studentService;

  @RequestMapping("/list")
  public List<Student> getStus(){
    logger.info("从数据库读取Student集合");
    return studentService.getList();
  }
}

[
{
id: 1,
name: "小明",
sumScore: "252",
avgScore: "84",
age: 1
},
{
id: 2,
name: "小王",
sumScore: "187",
avgScore: "62.3",
age: 1
},
{
id: 3,
name: "莉莉",
sumScore: "",
avgScore: "",
age: 0
},
{
id: 4,
name: "柱子",
sumScore: "230",
avgScore: "76.7",
age: 1
},
{
id: 5,
name: "大毛",
sumScore: "",
avgScore: "",
age: 0
},
{
id: 6,
name: "亮子",
sumScore: "0",
avgScore: "0",
age: 1
}
]

spring.datasource.url=jdbc:mysql://localhost:3306/test
spring.datasource.username=root
spring.datasource.password=123456
spring.datasource.driver-class-name=com.mysql.jdbc.Driver

spring.datasource.max-idle=10
spring.datasource.max-wait=10000
spring.datasource.min-idle=5
spring.datasource.initial-size=5
spring.datasource.validation-query=SELECT 1
spring.datasource.test-on-borrow=false
spring.datasource.test-while-idle=true
spring.datasource.time-between-eviction-runs-millis=18800
spring.datasource.jdbc-interceptors=ConnectionState;SlowQueryReport(threshold=0)

<logger name="org.springframework.boot" level="DEBUG"/>