idea 新建thymeleaf_IDEA+maven+SpringBoot+JPA+Thymeleaf实现Crud及分页
一、开发环境：
1、windows 7 企业版
2、IDEA 14
3、JDK 1.8
4、Maven 3.5.2
5、MariaDB
6、SQLYog
二、Maven设置：
Maven目录下的conf目录下的settings.xml做如下内容的添加：
1、使用阿里云的仓库，比官网访问速度快很多
nexus-aliyun
central
Nexus aliyun
http://maven.aliyun.com/nexus/content/groups/public
2、全局JDK配置
jdk18
true
1.8
1.8
1.8
1.8
三、IDEA基本设置：
1、Maven设置：选择Maven目录，同时配置文件和本地仓库
2、字符编码设置
四、使用IDEA创建Maven工程：
选择Enable Auto-Import，创建好的工程目录如下图：
五、体验SpringBoot结合JPA的快速开发吧
1、pom.xml
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">
4.0.0
cn.temptation
studySpringBoot
1.0-SNAPSHOT
org.springframework.boot
spring-boot-starter-parent
2.0.0.RELEASE
org.springframework.boot
spring-boot-starter-web
org.springframework.boot
spring-boot-starter-thymeleaf
mysql
mysql-connector-java
5.1.21
org.springframework.boot
spring-boot-starter-data-jpa
2、resources目录下新建application.properties(当然喜欢用yaml的可以用yaml)
# 数据库连接
spring.datasource.url=jdbc:mysql://127.0.0.1:3306/test
spring.datasource.username=root
spring.datasource.password=sa
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
# JPA配置
spring.jpa.properties.hibernate.hbm2ddl.auto=update
3、创建SpringBoot程序启动类SpringbootApplication.java
package cn.temptation;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class SpringbootApplication {
public static void main(String[] args) {
// SpringBoot项目启动
SpringApplication.run(SpringbootApplication.class, args);
}
}
4、创建实体类Category.java
package cn.temptation.model;
import javax.persistence.*;
// 建库建表
//DROP TABLE category;
//
//CREATE TABLE category
//(
// categoryid INT AUTO_INCREMENT PRIMARY KEY,
// categoryname VARCHAR(10) NOT NULL
//);
//
//INSERT INTO category VALUES(NULL, '手机'), (NULL, '图书'), (NULL, '服装'), (NULL, '鞋帽');
//
//SELECT * FROM category;
@Entity
@Table(name = "category")
public class Category {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Column(name = "categoryid")
private Integer categoryid;
@Column(name = "categoryname")
private String categoryname;
public Integer getCategoryid() {
return categoryid;
}
public void setCategoryid(Integer categoryid) {
this.categoryid = categoryid;
}
public String getCategoryname() {
return categoryname;
}
public void setCategoryname(String categoryname) {
this.categoryname = categoryname;
}
}
5、创建DAO接口CategoryDao.java
package cn.temptation.dao;
import cn.temptation.model.Category;
import org.springframework.data.jpa.repository.JpaRepository;
public interface CategoryDao extends JpaRepository {
}
6、创建控制器类CategoryController.java
package cn.temptation.web;
import cn.temptation.dao.CategoryDao;
import cn.temptation.model.Category;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Pageable;
import org.springframework.data.domain.Sort;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.ModelAndView;
import java.util.List;
@Controller
public class CategoryController {
@Autowired
private CategoryDao categoryDao;
/**
* 不分页查询
*
* @return
*/
// @RequestMapping("/categorylist")
// public ModelAndView categorylist() {
// List list = categoryDao.findAll();
//
// ModelAndView mav = new ModelAndView("categorylist");
// mav.addObject("list", list);
// return mav;
// }
/**
* 分页查询
*
* @return
*/
@RequestMapping("/categorylist")
public ModelAndView categorylist(@RequestParam(value = "start", defaultValue = "0") Integer start,
@RequestParam(value = "limit", defaultValue = "2") Integer limit) {
start = start < 0 ? 0 : start;
Sort sort = new Sort(Sort.DEFAULT_DIRECTION, "categoryid");
Pageable pageable = new PageRequest(start, limit, sort);
Page page = categoryDao.findAll(pageable);
// System.out.println(page.getNumber());
// System.out.println(page.getNumberOfElements());
// System.out.println(page.getSize());
// System.out.println(page.getTotalElements());
// System.out.println(page.getTotalPages());
// System.out.println(page.isFirst());
// System.out.println(page.isLast());
ModelAndView mav = new ModelAndView("categorylist");
mav.addObject("page", page);
return mav;
}
/**
* 类别新增视图
* @return
*/
@RequestMapping("/categoryinit")
public String categoryinit() {
return "categoryinit";
}
/**
* 类别新增操作
* @param model
* @return
*/
@RequestMapping("/categoryinsert")
public String categoryinsert(Category model) {
categoryDao.save(model);
return "redirect:categorylist";
}
/**
* 类别删除操作
* @param categoryid
* @return
*/
@RequestMapping("/categorydelete")
public String categorydelete(Integer categoryid) {
categoryDao.deleteById(categoryid);
return "redirect:categorylist";
}
/**
* 类别编辑视图
* @param categoryid
* @return
*/
@RequestMapping("/categoryedit")
public ModelAndView categoryedit(Integer categoryid) {
Category model = categoryDao.getOne(categoryid);
ModelAndView mav = new ModelAndView("categoryedit");
mav.addObject("category", model);
return mav;
}
/**
* 类别编辑操作
* @param model
* @return
*/
@RequestMapping("/categoryupdate")
public String categoryupdate(Category model) {
categoryDao.save(model);
return "redirect:categorylist";
}
}
7、resources目录下新建templates目录，创建表现层：类别列表页面(categorylist.html)、类别新增页面(categoryinit.html)、类别编辑页面(categoryedit.html)
类别列表页面(categorylist.html)
类别列表table, th, td {
border: 1px solid green;
border-collapse: collapse;
}
新增
| 类别编号 | 类别名称 | 操 作 |
|---|---|---|
| 类别编号 | 类别名称 | 编辑 删除 |
[首页]
[上页]
[下页]
[末页]
类别新增页面(categoryinit.html)
类别新增类别名称：
类别编辑页面(categoryedit.html)
类别编辑类别名称：
六、启动项目，运行效果如下
总结
以上所述是小编给大家介绍的IDEA+maven+SpringBoot+JPA+Thymeleaf实现Crud及分页，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对脚本之家网站的支持！