整合持久层技术

整合jsp
整合frameworker
整合thymeleaf

整合jsp技术

pom文件

<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>
  <parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.2.0.RELEASE</version>
  </parent>
  <groupId>com.pshdhx</groupId>
  <artifactId>01-springboot-view-jsp</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <properties>
  	<java.version>1.8</java.version>
  </properties>
  <dependencies>
  	<dependency>
  		<groupId>org.springframework.boot</groupId>
  		<artifactId>spring-boot-starter-web</artifactId>
  	</dependency>
  	<dependency>
  		<groupId>javax.servlet</groupId>
  		<artifactId>jstl</artifactId>
  	</dependency>
  	<dependency>
  		<groupId>org.apache.tomcat.embed</groupId>
  		<artifactId>tomcat-embed-jasper</artifactId>
  		<scope>provided</scope>
  		<version>9.0.8</version>
  	</dependency>
  </dependencies>
</project>

配置文件application.properities

spring.mvc.view.prefix=/WEB-INF/jsp/
spring.mvc.view.suffix=.jsp

实体类User.java

package com.pshdhx.controller;

public class User {
	private String id;
	private String userName;
	private int age;
	public String getId() {
		return id;
	}
	public void setId(String id) {
		this.id = id;
	}
	public String getUserName() {
		return userName;
	}
	public void setUserName(String userName) {
		this.userName = userName;
	}
	public int getAge() {
		return age;
	}
	public void setAge(int age) {
		this.age = age;
	}
	public User(String id, String userName, int age) {
		super();
		this.id = id;
		this.userName = userName;
		this.age = age;
	}
	
}

控制层JSPController.java

package com.pshdhx.controller;

import java.util.ArrayList;
import java.util.List;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

/**
 * 
 * @author ASUS
 *
 */
@Controller
public class JSPController {
	/*
	* 处理请求，产生数据
	*/
		@RequestMapping("/showUser")
		public String showUser(Model model){
			List<User> list = new ArrayList<>();
			list.add(new User("1","张三",20));
			list.add(new User("2","李四",22));
			list.add(new User("3","王五",24));
			//需要一个 Model 对象
			model.addAttribute("list", list);
			//跳转视图
			return "userList";
		}
}

视图层userList.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
	<table border="1" align="center" width="50%">
		<tr>
			<th>ID</th>
			<th>NAME</th>
			<th>AGE</th>
		</tr>
		<c:forEach items="${list }" var="user">
			<tr>
				<td>${user.id }</td>
				<td>${user.userName }</td>
				<td>${user.age }</td>
			</tr>
		</c:forEach>
	</table>
</body>
</html>

主启动类App.java

package com.pshdhx;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class App {
	public static void main(String[] args) {
		SpringApplication.run(App.class, args);
	}
}

目录结构

访问地址：

http://localhost:8080/showUser

springboot整合视图层+持久层技术

整合持久层技术

整合jsp技术

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