springboot使用JdbcTemplate完成对数据库的增删改查功能

DROP TABLE IF EXISTS `items`; 
CREATE TABLE `items` ( 
 `id` int(11) NOT NULL AUTO_INCREMENT, 
 `title` varchar(255) DEFAULT NULL, 
 `name` varchar(10) DEFAULT NULL, 
 `detail` varchar(255) DEFAULT NULL, 
 PRIMARY KEY (`id`) 
) ENGINE=InnoDB AUTO_INCREMENT=7 DEFAULT CHARSET=utf8; 

<dependency> 
 <groupId>org.springframework.boot</groupId> 
 <artifactId>spring-boot-starter-jdbc</artifactId> 
</dependency> 
<dependency> 
 <groupId>mysql</groupId> 
 <artifactId>mysql-connector-java</artifactId> 
 <scope>runtime</scope> 
</dependency> 

spring.datasource.url=jdbc:mysql://127.0.0.1:3306/spring?useSSL=false 
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 
server.port=8080 
server.session.timeout=10 
server.tomcat.uri-encoding=UTF-8 

package org.amuxia.start; 
public class Items { 
 private Integer id; 
 private String title; 
 private String name; 
 private String detail; 
 public Integer getId() { 
  return id; 
 } 
 public void setId(Integer id) { 
  this.id = id; 
 } 
 public String getTitle() { 
  return title; 
 } 
 public void setTitle(String title) { 
  this.title = title; 
 } 
 public String getName() { 
  return name; 
 } 
 public void setName(String name) { 
  this.name = name; 
 } 
 public String getDetail() { 
  return detail; 
 } 
 public void setDetail(String detail) { 
  this.detail = detail; 
 } 
 public Items() { 
  super(); 
  // TODO Auto-generated constructor stub 
 } 
 public Items(Integer id, String title, String name, String detail) { 
  super(); 
  this.id = id; 
  this.title = title; 
  this.name = name; 
  this.detail = detail; 
 } 
 @Override 
 public String toString() { 
  return "Items [id=" + id + ", title=" + title + ", name=" + name + ", detail=" + detail + "]"; 
 } 
} 

/** 
  * 新增数据 
  * @param items 
  * @return 
  */ 
 @RequestMapping("/add") 
 public @ResponseBody String addItems(Items items) { 
  String sql = "insert into items (id,title,name,detail) value (?,?,?,?)"; 
  Object args[] = {items.getId(),items.getTitle(),items.getName(),items.getDetail()}; 
  int temp = jdbcTemplate.update(sql, args); 
  if(temp > 0) { 
   return "文章新增成功"; 
  } 
  return "新增出现错误"; 
 } 

/** 
  * @return 
  * 查询全部信息 
  */ 
 @RequestMapping("/list") 
 public List<Map<String, Object>> itemsList() { 
  String sql = "select * from items"; 
  List<Map<String, Object>> list = jdbcTemplate.queryForList(sql); 
  return list; 
 } 

package org.amuxia.start; 
import java.util.List; 
import java.util.Map; 
import org.springframework.beans.factory.annotation.Autowired; 
import org.springframework.context.annotation.ComponentScan; 
import org.springframework.jdbc.core.JdbcTemplate; 
import org.springframework.web.bind.annotation.PathVariable; 
import org.springframework.web.bind.annotation.RequestMapping; 
import org.springframework.web.bind.annotation.ResponseBody; 
import org.springframework.web.bind.annotation.RestController; 
@ComponentScan 
@RestController 
@RequestMapping("/items") 
public class ItemsController { 
 @Autowired 
 private JdbcTemplate jdbcTemplate; 
 /** 
  * @return 
  * 查询全部信息 
  */ 
 @RequestMapping("/list") 
 public List<Map<String, Object>> itemsList() { 
  String sql = "select * from items"; 
  List<Map<String, Object>> list = jdbcTemplate.queryForList(sql); 
  return list; 
 } 
 /** 
  * @param id 
  * @return 
  * 根据ID查询单条信息 
  */ 
 @RequestMapping("/detail/{id}") 
 public Map<String, Object> detail(@PathVariable int id) { 
  Map<String, Object> map = null; 
  List<Map<String, Object>> list = itemsList(); 
  map = list.get(id); 
  return map; 
 } 
 /** 
  * 新增数据 
  * @param items 
  * @return 
  */ 
 @RequestMapping("/add") 
 public @ResponseBody String addItems(Items items) { 
  String sql = "insert into items (id,title,name,detail) value (?,?,?,?)"; 
  Object args[] = {items.getId(),items.getTitle(),items.getName(),items.getDetail()}; 
  int temp = jdbcTemplate.update(sql, args); 
  if(temp > 0) { 
   return "文章新增成功"; 
  } 
  return "新增出现错误"; 
 } 
 /** 
  * @param items 
  * @return 
  * 删除数据 
  */ 
 @RequestMapping("/del") 
 public @ResponseBody String delItems(Items items) { 
  String sql = "delete from items where id = ?"; 
  Object args[] = {items.getId()}; 
  int temp = jdbcTemplate.update(sql, args); 
  if(temp > 0) { 
   return "文章删除成功"; 
  } 
  return "删除出现错误"; 
 } 
 /** 
  * @param items 
  * @return 
  * 更新操作 
  */ 
 @RequestMapping("/upd") 
 public @ResponseBody String updItems(Items items) { 
  String sql = "update items set title = ?,detail = ? where id = ?"; 
  Object args[] = {items.getTitle(),items.getDetail(),items.getId()}; 
  int temp = jdbcTemplate.update(sql, args); 
  if(temp > 0) { 
   return "文章修改成功"; 
  } 
  return "修改出现错误"; 
 } 
} 

package org.amuxia.start; 
import org.springframework.boot.SpringApplication; 
import org.springframework.boot.autoconfigure.EnableAutoConfiguration; 
import org.springframework.web.bind.annotation.RestController; 
@RestController 
@EnableAutoConfiguration 
public class App 
{ 
 public static void main( String[] args ) 
 { 
  System.out.println( "start....." ); 
  SpringApplication.run(ItemsController.class, args); 
 } 
}