我正在尝试构建一个简单的springboot应用程序。 这是我的类控制器“HelloController.java”：
package controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class HelloController {
@RequestMapping("/")
public String index()
{
return "Welcome to Spring Boot";
}
}
主要类“Application.java”
package hello;
import org.joda.time.LocalTime;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.ApplicationContext;
@SpringBootApplication
public class Application {
public static void main(String[] args) {
Greeter greeter = new Greeter();
LocalTime currentTime = new LocalTime();
System.out.println( greeter.sayHello() );
System.out.println( "The current local time is: " + currentTime );
SpringApplication.run(Application.class, args);
}
}
和pom.xml
<?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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.springframework</groupId>
<artifactId>gs-maven</artifactId>
<!--packaging>jar</packaging-->
<version>0.1.0</version>
<properties>
<java.version>1.8</java.version>
</properties>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.3.5.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>joda-time</groupId>
<artifactId>joda-time</artifactId>
<version>2.2</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>2.2</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<transformers>
<transformer
implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
<mainClass>hello.Application</mainClass>
</transformer>
</transformers>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
这是使用IntelliJ从应用程序返回的堆栈跟踪：
2016-06-24 17:12:27.754 INFO 4072 --- [ main] hello.Application : Starting Application on WIN-PNSVSNOEM58 with PID 4072 (C:\Users\NICOLA\git\javaprojects\spring-base\target\classes started by NICOLA in C:\Users\NICOLA\git\javaprojects\spring-base)
2016-06-24 17:12:27.777 INFO 4072 --- [ main] hello.Application : No active profile set, falling back to default profiles: default
2016-06-24 17:12:28.330 INFO 4072 --- [ main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@7ce026d3: startup date [Fri Jun 24 17:12:28 CEST 2016]; root of context hierarchy
2016-06-24 17:12:39.844 INFO 4072 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 8080 (http)
2016-06-24 17:12:39.880 INFO 4072 --- [ main] o.apache.catalina.core.StandardService : Starting service Tomcat
2016-06-24 17:12:39.883 INFO 4072 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.0.33
2016-06-24 17:12:40.885 INFO 4072 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2016-06-24 17:12:40.886 INFO 4072 --- [ost-startStop-1] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 12671 ms
2016-06-24 17:12:42.090 INFO 4072 --- [ost-startStop-1] o.s.b.c.e.ServletRegistrationBean : Mapping servlet: 'dispatcherServlet' to [/]
2016-06-24 17:12:42.101 INFO 4072 --- [ost-startStop-1] o.s.b.c.embedded.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to: [/*]
2016-06-24 17:12:42.102 INFO 4072 --- [ost-startStop-1] o.s.b.c.embedded.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2016-06-24 17:12:42.102 INFO 4072 --- [ost-startStop-1] o.s.b.c.embedded.FilterRegistrationBean : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2016-06-24 17:12:42.103 INFO 4072 --- [ost-startStop-1] o.s.b.c.embedded.FilterRegistrationBean : Mapping filter: 'requestContextFilter' to: [/*]
2016-06-24 17:12:43.195 INFO 4072 --- [ main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@7ce026d3: startup date [Fri Jun 24 17:12:28 CEST 2016]; root of context hierarchy
2016-06-24 17:12:43.565 INFO 4072 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.BasicErrorController.error(javax.servlet.http.HttpServletRequest)
2016-06-24 17:12:43.568 INFO 4072 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
2016-06-24 17:12:43.671 INFO 4072 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2016-06-24 17:12:43.672 INFO 4072 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2016-06-24 17:12:44.182 INFO 4072 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2016-06-24 17:12:46.558 INFO 4072 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup
2016-06-24 17:12:46.783 INFO 4072 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat started on port(s): 8080 (http)
2016-06-24 17:12:46.795 INFO 4072 --- [ main] hello.Application : Started Application in 21.875 seconds (JVM running for 28.272)
当我使用mvn命令启动应用程序时返回此错误：
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 21.138 s
[INFO] Finished at: 2016-06-24T16:47:12+02:00
[INFO] Final Memory: 17M/40M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-shade-plugin:2.2:shade (default) on project gs-maven: Unable to parse configuration of mojo org.apache.maven.plugins:maven-shade-plugin:2.2:shade for parameter resource: Cannot find 'resource' in class org.apache.maven.plugins.shade.resource.ManifestResourceTransformer -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1
答案 0 :(得分：1)
如果删除整个maven shade插件部分应该可以工作。看起来你并没有声明任何条目在那里被覆盖。然后maven构建应该正常工作，你应该能够部署产生的工件。
此外，看起来你在官方文档中的插件中使用略有不同的语法，特别是主类：
<transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
<manifestEntries>
<Main-Class>${app.main.class}</Main-Class>
<X-Compile-Source-JDK>${maven.compile.source}</X-Compile-Source-JDK>
<X-Compile-Target-JDK>${maven.compile.target}</X-Compile-Target-JDK>
</manifestEntries>
</transformer>
答案 1 :(得分：0)
确定， 我从pox.xml中删除了maven插件阴影但我没有解决问题。 无论如何，我在spring.io网站上尝试这个例子：
[https://spring.io/guides/gs/maven/]
并且pom.xml文件使用此插件。 我不明白maven的目标是什么＆＃34;阴影＆＃34;在这个简单的例子中插入它的主要动机是为了在localhost中显示问候：8080。 关于它，当我插入网址
它给了我一个404 http状态代码。