Question

我已经完成了example hello world dropwizard项目的工作，该项目在IntelliJ中显示无错误（我是Eclipse老手但是IntelliJ的新手）但是编译因maven而失败。

IntelliJ console

源目录包含：

/src/main/java/com/example/helloworld/HelloWorldConfiguration.java
/src/main/java/com/example/helloworld/HelloWorldService.java

HelloWorldService的样子：

package com.example.helloworld;

import com.example.helloworld.resources.HelloWorldResource;
import com.example.helloworld.health.TemplateHealthCheck;
import com.yammer.dropwizard.Service;
import com.yammer.dropwizard.config.Bootstrap;
import com.yammer.dropwizard.config.Environment;

public class HelloWorldService extends Service<HelloWorldConfiguration> {
    public static void main(String[] args) throws Exception {
        new HelloWorldService().run(args);
    }

    @Override
    public void initialize(Bootstrap<HelloWorldConfiguration> bootstrap) {
        bootstrap.setName("hello-world");
    }

    @Override
    public void run(HelloWorldConfiguration configuration,
                    Environment environment) {
        final String template = configuration.getTemplate();
        final String defaultName = configuration.getDefaultName();
        environment.addResource(new HelloWorldResource(template, defaultName));
        environment.addHealthCheck(new TemplateHealthCheck(template));
    }

}

和maven回来了：

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project my-project: Compilation failure: Compilation failure:
[ERROR] /Users/markdsievers/IdeaProjects/dropwizard/src/main/java/com/example/helloworld/HelloWorldService.java:[9,48] cannot find symbol
[ERROR] symbol: class HelloWorldConfiguration
[ERROR] /Users/markdsievers/IdeaProjects/dropwizard/src/main/java/com/example/helloworld/HelloWorldService.java:[15,38] cannot find symbol
[ERROR] symbol  : class HelloWorldConfiguration
[ERROR] location: class com.example.helloworld.HelloWorldService
[ERROR] /Users/markdsievers/IdeaProjects/dropwizard/src/main/java/com/example/helloworld/HelloWorldService.java:[20,21] cannot find symbol
[ERROR] symbol  : class HelloWorldConfiguration
[ERROR] location: class com.example.helloworld.HelloWorldService

pom.xml的样子：

<?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.example.helloworld</groupId>
    <artifactId>my-project</artifactId>
    <version>0.0.1-SNAPSHOT</version>

    <dependencies>
        <dependency>
            <groupId>com.yammer.dropwizard</groupId>
            <artifactId>dropwizard-core</artifactId>
            <version>0.6.2</version>
        </dependency>
    </dependencies>

    <properties>
        <!-- use UTF-8 for everything -->
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    </properties>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.1</version>
                <configuration>
                    <source>1.6</source>
                    <target>1.6</target>
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

如果从命令行或IntelliJ中运行编译目标，我从maven获得相同的错误。源根（/ src / main / java）在IntelliJ中设置，没有任何清理和重新编译有任何影响。

任何建议表示赞赏。

Answer 1

发现问题... HelloWorldConfiguration没有.java分机。非常邪恶的IMO，IDE将其视为有效的java文件，并通过New Java Class创建（或者必须没有或出现问题）。无论如何，可能需要启用文件扩展名的查看。

IntelliJ中的Java项目没有错误，但是通过Maven编译失败

1 个答案: