Swagger介绍-一套流行的API框架
简介
号称:世界最流行的API框架
官网:http://swagger.io/
解决什么问题:在前后台分离的开发模式中,减小接口定义沟通成本,方便开发过程中测试,自动生成接口文档。
实例代码位置:https://github.com/pumadong/cl-roadshow/tree/master/roadshow-swagger
swagger使用方式
第一种
定义YAML文件,然后可以生成各种语言的代码框架,对于后台程序员来说,较少人会愿意写出一堆YAML格式。
第二种
swagger有各种语言的插件,可以通过配置及少量代码,生成接口文档及测试界面。
我们多做了:一次性的配置及少量注解代码。
我们不用再做:1、到Wiki中更新接口文档;2、Postman形式的测试;3、Curl形式的测试
swagger java使用介绍
对于一个SpringMVC项目,使用swagger的配置如下:
pom.xml
- <!-- Swagger -->
- <dependency>
- <groupId>io.swagger</groupId>
- <artifactId>swagger-core</artifactId>
- <version>1.5.8</version>
- </dependency>
- <dependency>
- <groupId>io.springfox</groupId>
- <artifactId>springfox-swagger2</artifactId>
- <version>2.4.0</version>
- </dependency>
- <dependency>
- <groupId>io.springfox</groupId>
- <artifactId>springfox-swagger-ui</artifactId>
- <version>2.4.0</version>
- </dependency>
SwaggerConfiguration.java
- @Configuration
- @EnableSwagger2
- public class SwaggerConfiguration {
- @Bean
- public Docket api() {
- return new Docket(DocumentationType.SWAGGER_2)
- .select()
- .apis(RequestHandlerSelectors.any())
- .paths(PathSelectors.any())
- .build();
- }
- }
SwaggerWebMvcConfigurerAdapter.java
- @Configuration
- @EnableWebMvc
- @ComponentScan(basePackages = "com.xx.travel.csc.stat.controller")
- public class SwaggerWebMvcConfigurerAdapter extends WebMvcConfigurerAdapter {
- @Bean
- public ViewResolver viewResolver() {
- InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
- viewResolver.setViewClass(JstlView.class);
- viewResolver.setPrefix("/WEB-INF/views/");
- viewResolver.setSuffix(".jsp");
- return viewResolver;
- }
- @Bean
- public MessageSource messageSource() {
- ResourceBundleMessageSource messageSource = new ResourceBundleMessageSource();
- messageSource.setBasename("messages");
- return messageSource;
- }
- @Override
- public void addResourceHandlers(ResourceHandlerRegistry registry) {
- super.addResourceHandlers(registry);
- registry.addResourceHandler("swagger-ui.html")
- .addResourceLocations("classpath:/META-INF/resources/");
- registry.addResourceHandler("/webjars/**")
- .addResourceLocations("classpath:/META-INF/resources/webjars/");
- }
- @Override
- public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
- configurer.enable();
- }
- }
Controller实例
然后,只要在我们的Controller里面增加注解 ApiOperation和ApiParam 即可。
- @Controller
- @RequestMapping(value = "/stat")
- public class SwaggerController {
- @ResponseBody
- @RequestMapping(value = "/helloworld", method = RequestMethod.GET)
- @ApiOperation(nickname = "swagger-helloworld", value = "Swagger的世界", notes = "测试HelloWorld")
- public String helloWorld(@ApiParam(value = "昵称") @RequestParam String nickname) {
- return "Hello world, " + nickname;
- }
- @ResponseBody
- @RequestMapping(value = "/objectio", method = RequestMethod.POST)
- @ApiOperation(nickname = "swagger-objectio", value = "Swagger的ObjectIO", notes = "测试对象输入输出")
- public SwaggerOutput objectIo(@ApiParam(value = "输入") @RequestBody SwaggerInput input) {
- SwaggerOutput output = new SwaggerOutput();
- output.setId(input.getId());
- output.setName("Swagger");
- return output;
- }
- }
Web界面
启动项目,输入Http://Path/swagger-ui.html,就可以给前端展示相关的API文档,并像使用Postman以及Curl命令一样,通过Web界面进行接口测试。