Spring-Boot Not Finding JSP Pages in WAR File

官方有个sample，地址是：
https://github.com/spring-projects/spring-boot/tree/v1.1.5.RELEASE
里面有个spring-boot\spring-boot-samples\spring-boot-sample-web-jsp
自己跑一下。
如果是原来的工程应该添加tomcat-jsp解析包
               <dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
<scope>provided</scope>
</dependency>
另外其他标签库自行添加，应该能运行起来

I had the same issue and in my case it happened because I was missing a library in the classpath.

Spring Boot does not include Jasper as default and therefore JSP rendering doesn't work unless you explicitly include the library:


For Gradle:


compile("org.apache.tomcat.embed:tomcat-embed-jasper")
For Maven:


<dependency>
    <groupId>org.apache.tomcat.embed</groupId>
    <artifactId>tomcat-embed-jasper</artifactId>
    <scope>provided</scope>
    <version>8.0.23</version>
</dependency>