Unable to find a single main class from the following candidates

关于start-class，spring boot官方手册是这么说明的：

The plugin rewrites your manifest, and in particular it manages the Main-Class and Start-Class entries, so if the defaults don't work you have to configure those there (not in the jar plugin). The Main-Class in the manifest is actually controlled by the layout property of the boot plugin, e.g.

<build>
  ...
  <plugins>
    ...
    <plugin>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-maven-plugin</artifactId>
      <version>1.4.0.RELEASE</version>
      <configuration>
        <mainClass>${start-class}</mainClass>
        <layout>ZIP</layout>
      </configuration>
      <executions>
        <execution>
          <goals>
            <goal>repackage</goal>
          </goals>
        </execution>
      </executions>
    </plugin>
    ...
  </plugins>
  ...
</build>

所以，当你的默认方式不好用的时候，在properties中，加入一个start-class的属性，用于告诉spring boot maven plugin哪个类是入口类即可。

文／BeeNoisy（简书作者）
原文链接：http://www.jianshu.com/p/b521f819b06a
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