008_SpringBoot视图层技术jsp

最新推荐文章于 2024-10-20 18:00:00 发布

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最新推荐文章于 2024-10-20 18:00:00 发布

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1. 使用maven构建SpringBoot的名叫spring-boot-view-jsp项目

2. pom.xml

<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>com.bjbs</groupId>
	<artifactId>spring-boot-view-jsp</artifactId>
	<version>0.0.1-SNAPSHOT</version>

	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>1.5.13.RELEASE</version>
	</parent>

	<!-- 修改jdk版本 -->
	<properties>
		<java.version>1.8</java.version>
	</properties>

	<dependencies>
		<!-- springBoot的启动器 -->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>
		<!-- jstl标签坐标 -->
		<dependency>
			<groupId>javax.servlet</groupId>
			<artifactId>jstl</artifactId>
		</dependency>
		<!-- jasper Tomcat中对jsp处理的引擎 -->
		<dependency>
			<groupId>org.apache.tomcat.embed</groupId>
			<artifactId>tomcat-embed-jasper</artifactId>
			<scope>provided</scope>
		</dependency>
	</dependencies>
</project>

3. 新建User.java

package com.bjbs.pojo;

import java.io.Serializable;

public class User implements Serializable {
	private static final long serialVersionUID = 1L;

	private Integer id;
	private String name;
	private Integer age;

	public User() {

	}

	public User(Integer id, String name, Integer age) {
		this.id = id;
		this.name = name;
		this.age = age;
	}

	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;
	}

	public Integer getAge() {
		return age;
	}

	public void setAge(Integer age) {
		this.age = age;
	}

}

4. 新建UserController.java

package com.bjbs.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;
import com.bjbs.pojo.User;

/**
 * SpringBoot整合jsp
 */
@Controller
public class UserController {
	/*
	 * 处理请求, 产生数据
	 */
	@RequestMapping("/showUser")
	public String showUser(Model model) {
		List<User> list = new ArrayList<User>();
		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";
	}
}

5. 新建App.java启动类

package com.bjbs;

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

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

6. 在src/main/webapp/WEB-INF/jsp目录下, 新建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"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
	<head>
		<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
		<title>用户信息</title>
	</head>
	<body>
		<table border="1" align="center" width="50%">
			<tr>
				<th>用户id</th>
				<th>姓名</th>
				<th>年龄</th>
			</tr>
			<c:forEach items="${list}" var="user">
				<tr>
					<td>${user.id}</td>
					<td>${user.name}</td>
					<td>${user.age}</td>
				</tr>
			</c:forEach>
		</table>
	</body>
</html>

7. 在src/main/resources目录下, 新建application.properties, SpringBoot的全局配置文件, 设置访问jsp的前缀和后缀

#访问jsp的前缀
spring.mvc.view.prefix=/WEB-INF/jsp/
#访问jsp的后缀
spring.mvc.view.suffix=.jsp

8. 启动项目, 并使用浏览器访问