spring boot mvc docker白标签错误

Question

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 
http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>

<groupId>com.jay.webapp</groupId>
<artifactId>LoginModel</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>

<name>LoginModel</name>
<description>Demo project for Spring Boot</description>

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.5.6.RELEASE</version>
    <relativePath /> <!-- lookup parent from repository -->
</parent>

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

  <project.reporting.outputEncoding>UTF8</project.reporting.outputEncoding>
    <java.version>1.8</java.version>
</properties>

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

    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <scope>runtime</scope>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.apache.commons</groupId>
        <artifactId>commons-dbcp2</artifactId>
    </dependency>
 </dependencies>

 <build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
    </plugins>
</build>
  </project>

FROM openjdk:8-jdk-alpine 
MAINTAINER "***"
COPY LoginModel-0.0.1-SNAPSHOT.jar app.jar
CMD ["java","-Djava.security.egd=file:/dev/./urandom","-jar","app.jar"]

当我在本地执行“java-jar target/loginmodel-0.0.1-snapshot.jar”并尝试在浏览器上看到它时，它工作得很好，没有任何错误。我只是在尝试在docker容器上运行应用程序时才得到错误。到底错在哪里？

Answer 1

看起来您使用的是JSP，但您的应用程序被打包为一个JAR。您应该将您的应用程序打包为WAR。文件还提到

创建自定义error.jsp页面不会覆盖错误处理的默认视图，应该使用自定义错误页面。

有关这方面的更多信息，请参阅参考文档中的JSP限制部分。