创建pom.xml
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.7.RELEASE</version>
</parent>
<dependencies>
<!-- web -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- 整合JSP -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
</dependency>
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
</dependency>
<!-- JSTL -->
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.6</version>
<scope>provided</scope>
</dependency>
</dependencies>
创建配置文件 application.yml
- 在
resources中创建
server:
port: 8181
spring:
mvc:
view:
prefix: /
suffix: .jsp
创建 Handler与jsp页面交换
package com.daq.controller;
import com.southwind.entity.Student;
import com.southwind.repository.StudentRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
@Controller
@RequestMapping("/hello")
public class HelloHandler {
@Autowired
private StudentRepository studentRepository;
@GetMapping("/index")
public ModelAndView index(){
ModelAndView modelAndView = new ModelAndView();
modelAndView.setViewName("index");
modelAndView.addObject("list",studentRepository.findAll());
return modelAndView;
}
@GetMapping("/deleteById/{id}")
public String deleteById(@PathVariable("id") long id){
studentRepository.deleteById(id);
return "redirect:/hello/index";
}
@PostMapping("/save")
public String save(Student student){
studentRepository.saveOrUpdate(student);
return "redirect:/hello/index";
}
@PostMapping("/update")
public String update(Student student){
studentRepository.saveOrUpdate(student);
return "redirect:/hello/index";
}
@GetMapping("/findById/{id}")
public ModelAndView findById(@PathVariable("id") long id){
ModelAndView modelAndView = new ModelAndView();
modelAndView.setViewName("update");
modelAndView.addObject("student",studentRepository.findById(id));
return modelAndView;
}
}
JSP页面
index.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ page isELIgnored="false" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<html>
<head>
<title>Title</title>
</head>
<body>
<h1>学生信息</h1>
<table>
<tr>
<th>学生编号</th>
<th>学生姓名</th>
<th>学生年龄</th>
<th>操作</th>
</tr>
<c:forEach items="${list}" var="student">
<tr>
<td>${student.id}</td>
<td>${student.name}</td>
<td>${student.age}</td>
<td>
<a href="/hello/findById/${student.id}">修改</a>
<a href="/hello/deleteById/${student.id}">删除</a>
</td>
</tr>
</c:forEach>
</table>
<a href="/save.jsp">添加学生</a>
</body>
</html>
-save.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
</head>
<body>
<form action="/hello/save" method="post">
ID:<input type="text" name="id"/><br/>
name:<input type="text" name="name"/><br/>
age:<input type="text" name="age"/><br/>
<input type="submit" value="提交"/>
</form>
</body>
</html>
update.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
</head>
<body>
<form action="/hello/update" method="post">
ID:<input type="text" name="id" value="${student.id}" readonly/><br/>
name:<input type="text" name="name" value="${student.name}"/><br/>
age:<input type="text" name="age" value="${student.age}"/><br/>
<input type="submit" value="提交"/>
</form>
</body>
</html>