springboot-支持jsp

將Springboot工程打成war部署到web容器

1）pom文件中需要“一排二增”
A. 需要將tomcat從web組件中排除：

<dependency>
    <groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-web</artifactId>
	<!-- 排除內置容器，排除內置容器導出成war包可以讓外部容器運行spring-boot項目-->
	<exclusions>
		<exclusion>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-tomcat</artifactId>
		</exclusion>
	</exclusions>
</dependency>

B. 新增對jsp和jstl支持的組件

<dependency>
	<groupId>org.apache.tomcat.embed</groupId>
	<artifactId>tomcat-embed-jasper</artifactId>
</dependency>
<dependency>
	<groupId>javax.servlet</groupId>
	<artifactId>jstl</artifactId>
</dependency>

2）pom文件中將打包方式設置城war

<packaging>war</packaging>

3）在application.properties文件中增加jsp存放路徑的配置

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

C. 添加一個ServletInitialinizer

public class ServletInitializer extends SpringBootServletInitializer {
    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
        return application.sources(JspApplication.class);
    }
}