2.9SpringBoot之整合jsp

1.创建项目是添加web依赖

2.在pom文件中添加jap依赖

 
            org.apache.tomcat.embed
            tomcat-embed-jasper
            provided
        
        
        
            javax.servlet
            jstl
        

3.创建webapp/WEB-INF/jsp（jsp不能写在templates中）

webapp有一个蓝色的圈，如果没有就在modules的web Rseource Directory设置，找到webapp目录

4.在application.properties配置前缀后缀

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

5.也可以不用application.properties而用配置类

import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.ViewResolverRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

import java.rmi.registry.Registry;


@Configuration
public class WebMvcConfig implements WebMvcConfigurer {
    @Override
    public void configureViewResolvers(ViewResolverRegistry registry) {
        registry.jsp("/WEB-INF/jsp/",".jsp");
    }
}

创建Controlle和jspr测试

helloController

package com.example.jsp;

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

@Controller
public class helloController {
    @RequestMapping("/hello")
    public String hello(Model model){
        model.addAttribute("msg","hello world");
        return "01";
    }
}

01.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>


    


${msg}