如何将简单的Spring Boot（使用Gradle构建系统）部署到Apache Tomcat（真实服务器，而不是嵌入式服务器）？

Question

我遵循本教程：http://spring.io/guides/gs/rest-service/
这是我的项目结构：

的 build.gradle

buildscript{
    repositories{
        mavenCentral()
    }
    dependencies{
        classpath("org.springframework.boot:spring-boot-gradle-plugin:1.3.3.RELEASE")
    }
}

apply plugin: 'java'
apply plugin: 'eclipse'
apply plugin: 'idea'
apply plugin: 'spring-boot'

jar{
    baseName = 'gs-rest-service'
    version = '0.1.0'
}

repositories{
    mavenCentral()
}

sourceCompatibility = 1.8
targetCompatibility = 1.8

dependencies{
    compile("org.springframework.boot:spring-boot-starter-web") 
    testCompile("junit:junit")
}
task wrapper(type: Wrapper){
    gradleVersion = '2.3'
}

的 Application.java

package hello;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class Application {

    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }

}

的 Greeting.java

package hello;

public class Greeting {

    private final long id;
    private final String content;

    public Greeting(long id, String content) {
        super();
        this.id = id;
        this.content = content;
    }

    public long getId() {
        return id;
    }

    public String getContent() {
        return content;
    }

}

的 GreetingControler.java

package hello;

import java.util.concurrent.atomic.AtomicLong;

import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class GreetingController {

    private static final String template = "Hello, %s";
    private final AtomicLong counter = new AtomicLong();

    @RequestMapping("/greeting")
    public Greeting greeting(@RequestParam(value = "name", defaultValue = "World") String name) {
        return new Greeting(counter.incrementAndGet(), String.format(template, name));
    }

}

我知道如何通过 gradle bootRun 命令运行Spring Boot应用程序（在Apache Tomcat嵌入式服务器上运行）。但我不知道如何在真正的Apache Tomcat上运行Spring Boot应用程序（请在这一点上帮助我！）

Answer 1

关注comments's manish，我从http://start.spring.io/

创建了源代码库

然后我导入Eclipse for Java EE（使用Spring Tools Suite，Gradle插件），这是项目文件夹结构：

<强> Greeting.java

package hello;

public class Greeting {

    private final long id;
    private final String content;

    public Greeting(long id, String content) {
        this.id = id;
        this.content = content;
    }

    public long getId() {
        return id;
    }

    public String getContent() {
        return content;
    }
}

<强> GreetingController

package hello;

import java.util.concurrent.atomic.AtomicLong;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class GreetingController {

    private static final String template = "Hello, %s!";
    private final AtomicLong counter = new AtomicLong();

    @RequestMapping("/greeting")
    public Greeting greeting(@RequestParam(value="name", defaultValue="World") String name) {
        return new Greeting(counter.incrementAndGet(),
                            String.format(template, name));
    }
}

我修改了文件 GsRestServiceApplication.java

package hello;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class GsRestServiceApplication {

    public static void main(String[] args) {
        SpringApplication.run(GreetingController.class, args); // <-- modify this line.
    }
}

我无法更改文件 GsRestServiceApplication.java

package hello;

import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.context.web.SpringBootServletInitializer;

public class ServletInitializer extends SpringBootServletInitializer {

    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
        return application.sources(GsRestServiceApplication.class);
    }

}

我可以在真正的Tomcat服务器上运行web应用程序：

然后我使用浏览器或邮差查看结果：

http://localhost:8080/gs-rest-service/greeting?name=Vy

Answer 2

您正在使用Gradle。尝试在build.gradle文件中添加它。

dependencies {
   providedRuntime 'org.springframework.boot:spring-boot-starter-tomcat'
}

别忘了删除：

compile("org.springframework.boot:spring-boot-starter-web")