http://heidloff.net/article/usage-of-swagger-2-0-in-spring-boot-applications-to-document-apis/

1. Swagger
2. springfox-swagger
3. Spring-boot

页面访问效果

build.gradle

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath("org.springframework.boot:spring-boot-gradle-plugin:1.3.0.RELEASE")
    }
}

apply plugin: 'spring-boot'

repositories {
    mavenCentral()
    mavenLocal()
}

sourceCompatibility = 1.8
targetCompatibility = 1.8

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

    compile group: 'io.springfox', name: 'springfox-swagger-ui', version: '2.4.0'
    compile group: 'io.springfox', name: 'springfox-swagger2', version: '2.4.0'
    compile group: 'io.springfox', name: 'springfox-spi', version: '2.4.0'
}

Application.java 微服务程序入口

package hello;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;

import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.service.ApiInfo;
import springfox.documentation.service.Contact;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;
import springfox.documentation.swagger2.annotations.EnableSwagger2;

@SpringBootApplication
@EnableSwagger2
@ComponentScan("hello")
public class Application {

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

        @Bean
    public Docket newsApi() {
        return new Docket(DocumentationType.SWAGGER_2)
                .groupName("greetings")
                .apiInfo(apiInfo())
                .select()
                .paths(PathSelectors.regex("/greeting.*"))
                .build();
    }

    private ApiInfo apiInfo() {
        return new ApiInfoBuilder()
                .title("Spring Rest Sample With Swagger Title")
                .description("Spring Rest sampele with Swagger Description")
                .termsOfServiceUrl("")
                .contact(new Contact("king.wang", "wdxxl.github.io", "wdxxlanswer@gmail.com"))
                .licenseUrl("")
                .version("1.0")
                .build();
    }
}

Greetingcontroller.java

package hello;

import java.util.concurrent.atomic.AtomicLong;

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

import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiImplicitParams;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiResponse;
import io.swagger.annotations.ApiResponses;

@RestController
public class Greetingcontroller {

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

    @ApiOperation(value = "getGreeting", nickname = "getGreeting")
    @RequestMapping(method = RequestMethod.GET, path = "/greeting", produces = "application/json")
    @ApiImplicitParams({@ApiImplicitParam(name = "name", value = "User's name", required = false,
            dataType = "string", paramType = "query", defaultValue = "Niklas")})
    @ApiResponses(value = {@ApiResponse(code = 200, message = "Success", response = Greeting.class),
            @ApiResponse(code = 401, message = "Unauthorized"),
            @ApiResponse(code = 403, message = "Forbidden"),
            @ApiResponse(code = 404, message = "Not Found"),
            @ApiResponse(code = 500, message = "Failure")})
    public Greeting greeting(@RequestParam(value = "name", defaultValue = "World") String name) {
        return new Greeting(counter.incrementAndGet(), String.format(TEMPLATE, name));
    }
}

Greeting.java

package hello;

import com.fasterxml.jackson.annotation.JsonProperty;

import io.swagger.annotations.ApiModelProperty;

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;
    }

    @JsonProperty(required = true)
    @ApiModelProperty(notes = "The name of the user", required = true)
    public String getContent() {
        return content;
    }
}

README.md 相关的访问网址信息

http://localhost:8080/greeting?name=king
http://localhost:8080/greeting
http://localhost:8080/v2/api-docs?group=greetings
http://localhost:8080/swagger-ui.html