【发布时间】：2018-07-19 08:35:09
【问题描述】：
我正在构建一个 Spring Boot 应用程序，在从 Eclipse 运行项目时，它运行良好并且页面加载正常。但是当我进行 maven 构建并生成 JAR 文件并尝试执行时，JSP 页面没有加载，它显示 Whitelabel 错误。
application.properties
spring.mvc.view.prefix: /WEB-INF/jsp/
spring.mvc.view.suffix: .jsp
文件夹结构
pom.xml
这个项目 pom xml 与所有的依赖
<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>testproject</groupId>
<artifactId>testproject</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>HB</name>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.4.RELEASE</version>
<!-- <version>2.0.2.RELEASE</version> -->
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</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>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<!-- <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId>
</dependency> -->
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<!-- <dependency> <groupId>io.jsonwebtoken</groupId> <artifactId>jjwt</artifactId>
<version>0.6.0</version> </dependency> -->
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
</dependency>
<!-- <dependency> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-resources-plugin</artifactId>
<version>3.0.2</version> </dependency> -->
<!-- <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope> </dependency> -->
<!-- <dependency> <groupId>jstl</groupId> <artifactId>jstl</artifactId>
<version>1.2</version> </dependency> -->
<dependency>
<groupId>org.springframework.security.oauth</groupId>
<artifactId>spring-security-oauth2</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-jwt</artifactId>
</dependency>
<!-- <dependency> <groupId>commons-codec</groupId> <artifactId>commons-codec</artifactId>
</dependency> -->
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-config</artifactId>
</dependency>
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
<version>2.2.11</version>
</dependency>
<dependency>
<groupId>com.sun.xml.bind</groupId>
<artifactId>jaxb-core</artifactId>
<version>2.2.11</version>
</dependency>
<dependency>
<groupId>com.sun.xml.bind</groupId>
<artifactId>jaxb-impl</artifactId>
<version>2.2.11</version>
</dependency>
<dependency>
<groupId>javax.activation</groupId>
<artifactId>activation</artifactId>
<version>1.1.1</version>
</dependency>
<!-- <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-devtools</artifactId>
</dependency> -->
</dependencies>
<properties>
<!-- <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> -->
<java.version>1.8</java.version>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<executable>true</executable>
</configuration>
</plugin>
</plugins>
</build>
</project>
Spring Boot 启动类文件
@SpringBootApplication
@ComponentScan(basePackages= {"com.testproject",
"com.testproject.controller"})
public class Application extends SpringBootServletInitializer {
@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
return application.sources(Application.class);
}
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
}
【问题讨论】：
-
我在命令提示符中执行这个 JAR 文件，所以我没有在 cmd 中找到任何错误日志
-
好的，错误信息很清楚：URL 错误。你叫什么网址？
-
localhost:8080/login 这是我从浏览器调用的那个
-
HTTP 404 错误意味着您请求的资源尚未找到。这可能只是意味着您没有点击正确的 URL，这是从 IDE 运行切换到 jar 运行时的常见问题。
-
我不想要自定义 404 页面，在加载登录页面时遇到问题
标签： java spring spring-mvc spring-boot