springboot 支持 jsp

建立src/main/webapp目录，必须是这个目录，其他目录结构不可以。

然后在webapp目录下建立index.jsp

 然后修改application.properties

spring.mvc.view.prefix=/
spring.mvc.view.suffix=.jsp

在pom中

<!-- https://mvnrepository.com/artifact/org.apache.tomcat.embed/tomcat-embed-jasper -->
<dependency>
    <groupId>org.apache.tomcat.embed</groupId>
    <artifactId>tomcat-embed-jasper</artifactId>
    <scope>provided</scope>
</dependency>

<!--servlet依赖的jar包-->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <scope>provided</scope>
        </dependency>
        <!--jsp依赖的jar包-->
        <!-- https://mvnrepository.com/artifact/javax.servlet.jsp/javax.servlet.jsp-api -->
        <dependency>
            <groupId>javax.servlet.jsp</groupId>
            <artifactId>javax.servlet.jsp-api</artifactId>
            <version>2.3.1</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
        </dependency>

前台接受日期参数，格式化

public String hello(@DateTimeFormate(pattern="yyyy-MM-dd HH:mm:ss")Date birth){
  return "hello"
}


前台页面访问地址如下
http://localhost/hello?birth=2021-2-9 21:16:00