Spring Boot应用程序在执行JAR文件时显示白色标签错误 [英] Spring boot application displaying white label error when executing jar file
问题描述
我曾尝试在stackoverflow中进行搜索，但无法找到解决我的问题的可行的完美解决方案，因此想在此处发布.
I have tried searching in stackoverflow but couldn't able to find a viable perfect solution to my problem and hence would like to post here.
当我通过eclipse作为spring boot应用程序运行spring boot应用程序时，它运行正常并显示正确的页面.但是，当我转换为可执行jar文件并尝试通过命令提示符"java -jar abc.jar"运行时，该应用程序显示白色标签错误.
When I run my spring boot application via eclipse as spring boot app, it is working fine and displaying proper page. But when I converted into executable jar file and try to run via command prompt "java -jar abc.jar", the application is showing white label error.
这是我的应用程序结构.
Here is my application structure.
我的控制器在这里，
@RestController
@RequestMapping("/")
public class WebController {
@RequestMapping(value="/")
public ModelAndView home() {
ModelAndView app = new ModelAndView();
app.setViewName("home2");
return app;
}
}
我的pom.xml文件
My pom.xml file
<?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.eradar</groupId>
<artifactId>eradar-poc</artifactId>
<version>0.0.2-SNAPSHOT</version>
<packaging>jar</packaging>
<!-- <packaging>war</packaging> -->
<name>eRadarPOC</name>
<description>Demo project for Spring JPA - PostgreSQL -
AngularJS</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<!-- <version>1.5.4.RELEASE</version> -->
<version>1.5.9.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>
<drools.version>7.3.0.Final</drools.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<scope>runtime</scope>
</dependency>
<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>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.kie</groupId>
<artifactId>kie-api</artifactId>
<version>${drools.version}</version>
</dependency>
<dependency>
<groupId>org.drools</groupId>
<artifactId>drools-core</artifactId>
<version>${drools.version}</version>
</dependency>
<dependency>
<groupId>org.drools</groupId>
<artifactId>drools-compiler</artifactId>
<version>${drools.version}</version>
</dependency>
<dependency>
<groupId>org.drools</groupId>
<artifactId>drools-templates</artifactId>
<version>${drools.version}</version>
</dependency>
<dependency>
<groupId>org.drools</groupId>
<artifactId>drools-decisiontables</artifactId>
<version>${drools.version}</version>
</dependency>
<dependency>
<groupId>org.kie</groupId>
<artifactId>kie-ci</artifactId>
<version>${drools.version}</version>
</dependency>
<dependency>
<groupId>com.googlecode.json-simple</groupId>
<artifactId>json-simple</artifactId>
<version>1.1</version>
</dependency>
<dependency>
<groupId>org.json</groupId>
<artifactId>json</artifactId>
<version>20080701</version>
</dependency>
<dependency>
<groupId>javax.ws.rs</groupId>
<artifactId>javax.ws.rs-api</artifactId>
<version>2.0.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.xml.bind/jaxb-api -->
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
<version>2.3.0</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
<configuration>
<executable>true</executable>
</configuration>
</plugin>
<!-- Added -->
<!-- <plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.1</version>
<executions>
<execution>
<id>tomcat-run</id>
<goals>
<goal>exec-war-only</goal>
</goals>
<phase>package</phase>
<configuration>
<path>/</path>
<enableNaming>false</enableNaming>
<finalName>webapp.jar</finalName>
<charset>utf-8</charset>
</configuration>
</execution>
</executions>
</plugin> -->
<!-- Ended -->
</plugins>
<finalName>webappexecutableJar</finalName>
</build>
能否请您提出一些解决方案?如果你们遇到了类似我的类似问题，您如何处理?非常感谢.
Can you please suggest some solutions? If you guys have encountered any similar issues like mine, how did you handle? Thanks a lot.
推荐答案
请在您的application.properties中定义前缀和后缀映射，如下所示，然后尝试
Do define the prefix and suffix mapping in your application.properties like below and try
spring.mvc.view.prefix: /WEB-INF/jsps
spring.mvc.view.suffix: .jsp in your application.properties
请检查以下文件中的映射 https://github.com/hellokoding/springboot-jsp/blob/master/src/main/resources/application.properties
Please check the file below for the mapping https://github.com/hellokoding/springboot-jsp/blob/master/src/main/resources/application.properties
还要使用jsp来检查示例springboot项目，如下所示 https: //hellokoding.com/spring-boot-hello-world-example-with-jsp/
Also check the sample springboot project with jsp like below https://hellokoding.com/spring-boot-hello-world-example-with-jsp/
这篇关于Spring Boot应用程序在执行JAR文件时显示白色标签错误的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
