一、thymeleaf模板
1、在pom.xml中导入依赖
<!-- 添加thymeleaf模版的依赖 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
2、配置application.yml文件
###配置thymeleaf
spring:
thymeleaf:
cache: false
3、在resources目录下添加templates包，并在此包下创建index.html页面
<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.w3.org/1999/xhtml">
<head>
<meta charset="UTF-8">
<title>thymeleaf模板页面</title>
</head>
<body>
<ul th:each="stu:${stuList}">
<li>
<span th:text="${stu.stu_id}"></span>
<span th:text="${stu.stu_name}"></span>
</li>
</ul>
</body>
</html>
4、创建启动类
package com.boot;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class StartSpringBoot {
public static void main(String[] args){
SpringApplication.run(StartSpringBoot.class,args);
}
}
5、创建实体类student
package com.boot.entity;
public class student {
private Integer stu_id;
private String stu_name;
public Integer getStu_id() {
return stu_id;
}
public void setStu_id(Integer stu_id) {
this.stu_id = stu_id;
}
public String getStu_name() {
return stu_name;
}
public void setStu_name(String stu_name) {
this.stu_name = stu_name;
}
public student(Integer stu_id, String stu_name) {
this.stu_id = stu_id;
this.stu_name = stu_name;
}
}
6、创建Controller类
package com.boot.controller;
import com.boot.entity.student;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import java.util.ArrayList;
import java.util.List;
@Controller
@RequestMapping("/thymeleafController")
public class thymeleafController {
@RequestMapping("/thymeleaf")
public String thymeleaf(Model model){
List<student> list=new ArrayList<>();
student stu1=new student(1,"张三");
student stu2=new student(2,"李四");
student stu3=new student(3,"王五");
list.add(stu1);
list.add(stu2);
list.add(stu3);
model.addAttribute("stuList",list);
return "index";
}
}
7、页面效果如下
二、SpringBoot中使用jsp
1、创建一个jsp页面
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>jsp页面</title>
</head>
<body>
欢迎：${name}123123
</body>
</html>
2、创建启动类
package com.boot;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class StartSpringBoot {
public static void main(String[] args){
SpringApplication.run(StartSpringBoot.class,args);
}
}
3、创建Controller类
package com.boot.Controller;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
@RequestMapping("/restJspController")
public class restJspController {
@RequestMapping("/restJsp")
public String restJsp(Model model){
System.out.println("进入控制层");
model.addAttribute("name","王五");
return "index";
}
}
4、配置application.yml文件
###配置页面前缀后缀
spring:
mvc:
view:
suffix: .jsp
prefix: /jsp/
http:
encoding:
charset: UTF-8
force: true
5、设置启动
6、页面实现效果如下
三、设置热部署
1、导入热部署依赖
<!--热部署-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<optional>true</optional>
</dependency>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<fork>true</fork>
</configuration>
</plugin>
2、在pom.xml中输入Shift+Ctrl+Alt+/
3、勾选如下选项
4、在Settings中配置
四、SpringBoot-JPA
1、导入依赖
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.32</version>
</dependency>
<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>
2、创建实体类
package com.boot.entity;
import javax.persistence.*;
@Entity
public class Grade {
//代表Id为主键并自增
@Id @GeneratedValue(strategy = GenerationType.AUTO)
@Column(name = "GradeID")
private Integer gradeId;
@Column(name = "GradeName")
private String gradeName;
public Integer getGradeId() {
return gradeId;
}
public void setGradeId(Integer gradeId) {
this.gradeId = gradeId;
}
public String getGradeName() {
return gradeName;
}
public void setGradeName(String gradeName) {
this.gradeName = gradeName;
}
}
3、创建Dao层
package com.boot.dao;
import com.boot.entity.Grade;
import org.springframework.data.repository.CrudRepository;
import org.springframework.stereotype.Repository;
/**
* CrudRepository <实体类型,实体主键类型>
*/
@Repository
public interface IGradeMapper extends CrudRepository <Grade,Integer>{
}
4、创建Service层
package com.boot.service;
import com.boot.entity.Grade;
import java.util.List;
public interface IGradeService {
//添加的方法
public Grade insertGrade(Grade grade);
//修改的方法
public Grade updataGrade(Grade grade);
//删除的方法
public void deleteGrade(Integer id);
//查询所有的方法
public Iterable<Grade> getAll();
}
5、创建ServiceImpl层
package com.boot.service.impl;
import com.boot.dao.IGradeMapper;
import com.boot.entity.Grade;
import com.boot.service.IGradeService;
import org.springframework.stereotype.Service;
import javax.annotation.Resource;
@Service
public class IGradeServiceImpl implements IGradeService {
@Resource
IGradeMapper iGradeMapper;
@Override
public Grade insertGrade(Grade grade) {
return iGradeMapper.save(grade);
}
@Override
public Grade updataGrade(Grade grade) {
return iGradeMapper.save(grade);
}
@Override
public void deleteGrade(Integer id) {
iGradeMapper.deleteById(id);
}
@Override
public Iterable<Grade> getAll() {
return iGradeMapper.findAll();
}
}
6、创建Controller类
package com.boot.Controller;
import com.boot.entity.Grade;
import com.boot.service.IGradeService;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import javax.annotation.Resource;
@RestController
@RequestMapping("/IGradeController")
public class IGradeController {
@Resource
IGradeService iGradeService;
//新增数据
@RequestMapping("/insertGrade")
public Grade insertGrade(){
Grade grade=new Grade();
grade.setGradeId(6);
grade.setGradeName("UI");
return iGradeService.insertGrade(grade);
}
//修改数据
@RequestMapping("/updataGrade")
public Grade updataGrade(){
Grade grade=new Grade();
grade.setGradeId(1);
grade.setGradeName("accp");
return iGradeService.updataGrade(grade);
}
//删除数据
@RequestMapping("/deleteGrade")
public void deleteGrade(){
iGradeService.deleteGrade(2);
}
//查询数据
@RequestMapping("/getAllGrade")
public Iterable<Grade> getAllGrade(){
return iGradeService.getAll();
}
}
7、实现效果如下
原文地址：https://www.cnblogs.com/tinghao/p/12031100.html
时间： 2024-07-30 20:42:51