springboot（九）添加jsp支持

喜欢ヅ旅行 2022-07-13 07:26 252阅读 0赞

1、添加jar包

<dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-starter-tomcat</artifactId>
    			<scope>provided</scope>
    		</dependency>
    		<dependency>
    			<groupId>org.apache.tomcat.embed</groupId>
    			<artifactId>tomcat-embed-jasper</artifactId>
    			<scope>provided</scope>
    		</dependency>
    		<dependency>
    			<groupId>javax.servlet</groupId>
    			<artifactId>jstl</artifactId>
    			<version>1.2</version>
    		</dependency>

jsp不能用Application.java的main方法启动，只能用Tomcat启动，并且要打war包，所以修改打包方式为war：<packaging>war</packaging>

2、在src/main/下创建webapp文件夹，在webapp文件夹下创建WEB-INF文件夹，如图：

![Center][]

3、在DemoApplication里继承SpringBootServletInitializer，并添加@ServletComponentScan

package com.demo;
    
    import org.mybatis.spring.annotation.MapperScan;
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    import org.springframework.boot.context.properties.ConfigurationProperties;
    import org.springframework.boot.web.servlet.ServletComponentScan;
    import org.springframework.boot.web.support.SpringBootServletInitializer;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RestController;
    @SpringBootApplication
    @RestController
    @ServletComponentScan
    public class DemoApplication extends SpringBootServletInitializer{
    	@RequestMapping("/")
    	public String home(){
    		return "hello world";
    	}
    
    	public static void main(String[] args) {
    		SpringApplication.run(DemoApplication.class, args);
    	}
    }

以上就完成了。在controller里添加跳转测试

@RequestMapping("/turnJsp")
        public String turnJsp(){
            return "login/login";
        }

访问结果如图：

![Center 1][]

[Center]: /images/20220713/572f75c5a6004a1ab1986bad57965576.png
[Center 1]: /images/20220713/af5d3f194bb043fc9b40a27fa7241001.png