SpringBoot + H2 + JPA + Thymeleaf 整合
maven依賴：
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</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>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
yaml配置：
spring:
datasource:
platform: h2
driver-class-name: org.h2.Driver
# 內存模式
# url: jdbc:h2:mem:base
# AUTO_SERVER 混合模式 、DB_CLOSE_ON_EXIT、跟隨項目啓動
url: jdbc:h2:file:./h2/base-db;AUTO_SERVER=TRUE;DB_CLOSE_ON_EXIT=TRUE
username: root
password: root
# 每次加載 , 只用於表格創建
# schema: classpath:db/base.sql
h2:
console:
settings:
web-allow-others: true
enabled: true
path: /h2-console
jpa:
show-sql: true
hibernate:
ddl-auto: update
generate-ddl: false
mvc:
view:
prefix: /
suffix: .html
thymeleaf:
prefix: classpath:/templates/
check-template-location: true
suffix: .html
encoding: UTF-8
servlet:
content-type: text/html
mode: HTML5
cache: false
目錄截圖：
sql創建語句（base）：
DROP TABLE IF EXISTS user;
CREATE TABLE user (
`id` INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
name varchar(35),
PHONE varchar(35)
);
select * from user;
insert into user(id,name,PHONE) values(784,'在寫作協作','123456');
insert into user(id,name,phone) values(90,'是的','123456');
select * from user;
Thymeleaf（HTML）模板：
<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8">
<title>TEMPLATES</title>
</head>
<body>
Hello H2
<p th:text="${users}"></p>
<form action="/user/deleteUser" method="post">
ID:<input name="id">
<button type="submit">刪除</button>
</form>
<form action="/user/addUser" method="post">
ID:<input name="id">
NAME:<input name="name">
PHONE:<input name="phone">
<button type="submit">添加</button>
</form>
</body>
</html>
Domain:
package com.domain;
import lombok.Data;
import javax.persistence.*;
@Entity
@Table(name="user")
@Data
public class User {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Integer id;
@Column
private String name;
@Column
private String phone;
public Integer getId() {
return id;
}
public String getName() {
return name;
}
public String getPhone() {
return phone;
}
public void setId(Integer id) {
this.id = id;
}
public void setName(String name) {
this.name = name;
}
public void setPhone(String phone) {
this.phone = phone;
}
}
Dao:
package com.dao;
import com.domain.User;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;
@Repository
public interface UserDao extends JpaRepository<User, Integer> {
}
Controller:
package com.controller;
import com.domain.User;
import com.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import java.util.List;
@Controller
@RequestMapping("/user")
public class UserController {
@Autowired
private UserService userServiceImpl;
@GetMapping("/getUsers")
public String getUsers (ModelMap map){
List<User> users = this.userServiceImpl.getUsers();
map.addAttribute( "users",users );
return "index";
}
@PostMapping("/addUser")
public String addUser (ModelMap map,User user){
if (this.userServiceImpl.addUser( user )!=null)
return "redirect:/user/getUsers";
else
return "index";
}
@PostMapping("/deleteUser")
public String deleteUser (Integer id){
try {
this.userServiceImpl.deleteUser( id );
return "redirect:/user/getUsers";
} catch (Exception e) {
e.printStackTrace();
}
return "index";
}
}