分享程序员开发的那些事...
更新时间：2022-08-18 16:38:47
一、在配置连接数据源连接池springboot支持多种方式C3P0，DruidDataSource，c3p0，proxool等等，Druid连接池是采用java编写，在国内使用比较多，同时也经历了很多项目的实战，所以本次演示采用Druid连接池来处理数据源的连接
二、在连接数据源中，一般我们会采用两种方式处理
1、DataSource方式
2、Jndi方式
本文重点采用DataSource方式进行配置，完成本文实例，由于需要对数据操作，本文演示接口采用html方式进行增删改查页面操作
三、关键性：相关参数数据源配置说明
#1.基础配置
数据库连接池配置
#2.扩展配置
初始化连接数量
spring.datasource.initialSize=5
最小空闲连接数
spring.datasource.minIdle=5
最大空闲连接数
spring.datasource.maxActive=20
最大等待毫秒时间
spring.datasource.connectionProperties=druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000
四、服务器tomcat配置说明
# tomcat端口号
server.port=80
# tomcat项目名称定义
server.context-path=/eshengtai
五、java代码展示
1、初始化脚本
DROP TABLE IF EXISTS `eshengtai`; CREATE TABLE `eshengtai` ( `id` int(11) NOT NULL, `name` varchar(255) DEFAULT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8;2、java实体类
/**
* @Title: Demo.java
* @Package com.didispace.bean
* Copyright: Copyright (c) 2015
* @author: abc
* @date: 2017年1月16日 上午11:15:05
*
*/
package com.didispace.bean;
public class eshengtai {
private Integer id;
private String name;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
package com.didispace.service;
import java.util.List;
import com.didispace.bean.eshengtai;
/**
* @author e生态
* @version 1.0.0
* @date 16/3/17 下午7:04.
* @blog http://blog.csdn.net/ysl_228
*/
public interface UserService {
/**
* 新增一个用户
* @param name
* @param age
*/
void create(String name, Integer age);
/**
* 根据name删除一个用户高
* @param name
*/
void deleteByName(String name);
/**
* 获取用户总量
*/
Integer getAllUsers();
/**
* 删除所有用户
*/
void deleteAllUsers();
/**
* 获取所有数据
* @Title: selectAll
* @return
*
*/
public List<eshengtai> selectAll();
}
package com.didispace.service;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.BeanPropertyRowMapper;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.stereotype.Service;
import com.didispace.bean.eshengtai;
/**
* @author e生态
* @version 1.0.0
* @date 16/3/17 下午6:44.
* @blog http://blog.csdn.net/ysl_228
*/
@Service
public class UserServiceImpl implements UserService {
@Autowired
private JdbcTemplate jdbcTemplate;
@Override
public void create(String name, Integer id) {
jdbcTemplate.update("insert into eshengtai(id, name) values(?, ?)", id , name);
}
@Override
public void deleteByName(String name) {
jdbcTemplate.update("delete from eshengtai where NAME = ?", name);
}
@Override
public Integer getAllUsers() {
return jdbcTemplate.queryForObject("select count(1) from eshengtai", Integer.class);
}
@Override
public void deleteAllUsers() {
jdbcTemplate.update("delete from eshengtai");
}
@Override
public List<eshengtai> selectAll() {
return jdbcTemplate.query("select id,name from eshengtai", new Object[]{}, new BeanPropertyRowMapper<eshengtai>(eshengtai.class));
}
}
package com.didispace.web;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import com.didispace.bean.eshengtai;
import com.didispace.service.UserService;
/**
*
* @author e生态
* @version 1.0.0
* @blog http://blog.csdn.net/ysl_228
*
*/
@Controller
public class HelloController {
@Autowired
private UserService userService;
/**
* 添加数据
* @Title: add
* @param map
* @return
*
*/
@RequestMapping("/add")
public String add(eshengtai demo ,ModelMap map){
userService.create(demo.getName(), demo.getId());
map.addAttribute("list",userService.selectAll());
return "index";
}
@RequestMapping("/list")
public String add(ModelMap map){
map.addAttribute("list",userService.selectAll());
return "index";
}
@RequestMapping("/")
public String index(ModelMap map) {
map.addAttribute("host", "http://blog.csdn.net/ysl_228");
return "index";
}
}
package com.didispace;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
/**
*
* @author e生态
* @version 1.0.0
* @blog http://blog.csdn.net/ysl_228
*
*/
@SpringBootApplication
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
}
#tomcat port , project Name server.port=80 server.context-path=/eshengtai #1.jdbc config spring.datasource.type=com.alibaba.druid.pool.DruidDataSource spring.datasource.url=jdbc:mysql://localhost:3306/boot spring.datasource.username=root spring.datasource.password=123456 spring.datasource.driver-class-name=com.mysql.jdbc.Driver #2.extend config spring.datasource.initialSize=5 spring.datasource.minIdle=5 spring.datasource.maxActive=20 spring.datasource.maxWait=60000 spring.datasource.timeBetweenEvictionRunsMillis=60000 spring.datasource.minEvictableIdleTimeMillis=300000 spring.datasource.validationQuery=SELECT 1 FROM DUAL spring.datasource.testWhileIdle=true spring.datasource.testOnBorrow=false spring.datasource.testOnReturn=false spring.datasource.poolPreparedStatements=true spring.datasource.maxPoolPreparedStatementPerConnectionSize=20 spring.datasource.filters=stat,wall,log4j spring.datasource.connectionProperties=druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>spring-boot-properties</groupId> <artifactId>spring-boot-properties</artifactId> <version>0.0.1-SNAPSHOT</version> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.3.2.RELEASE</version> <relativePath /> <!-- lookup parent from repository --> </parent> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter</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>org.springframework.boot</groupId> <artifactId>spring-boot-starter-thymeleaf</artifactId> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.21</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>
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8" />
<title></title>
</head>
<body>
<h1 th:text="${host}">数据列表</h1>
<form action="http://localhost/boot/add" method="post">
ID:<input type="text" name="id" />
NAME:<input type="text" name="name" />
<input type="submit" value="提交" />
</form>
<hr/>
<div th:each="demo,iterStat : ${list}">
<span th:text="${demo.id}">id</span>
<span th:text="${demo.name}">name</span>
<br/>
</div>
</body>
</html>
以上就是所有springboot集成jdbc整体演示截图与代码，如果各位有好的想法与建议，还清大家在下面评论，本人非常愿意进行测试，会将测试结果反馈给各位。