• Spring Boot中使用Swagger2构建RESTful APIs介绍


    1、添加相关依赖

       <!-- https://mvnrepository.com/artifact/io.springfox/springfox-swagger2 -->
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <version>2.9.2</version>
        </dependency>
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger-ui</artifactId>
            <version>2.9.2</version>
        </dependency>
    

    2、创建Swagger自动配置类

    
    import org.springframework.context.annotation.Bean;
    import org.springframework.context.annotation.Configuration;
    import springfox.documentation.builders.ApiInfoBuilder;
    import springfox.documentation.builders.PathSelectors;
    import springfox.documentation.builders.RequestHandlerSelectors;
    import springfox.documentation.service.ApiInfo;
    import springfox.documentation.spi.DocumentationType;
    import springfox.documentation.spring.web.plugins.Docket;
    import springfox.documentation.swagger2.annotations.EnableSwagger2;
    
    @Configuration
    @EnableSwagger2
    public class Swagger {
        @Bean
        public Docket createRestApi() {
            return new Docket(DocumentationType.SWAGGER_2)
                    .apiInfo(apiInfo())
                    .select()
                    .apis(RequestHandlerSelectors.basePackage("com.ck.demo"))
                    .paths(PathSelectors.any())
                    .build();
        }
        private ApiInfo apiInfo() {
            return new ApiInfoBuilder()
                    .title("Spring Boot中使用Swagger2构建RESTful APIs")
                    .description("更多Spring Boot相关文章请关注:https://www.yuque.com/chaohen")
                    .termsOfServiceUrl("https://www.yuque.com/chaohen")
                    .contact("潮痕")
                    .version("1.0.0")
                    .build();
        }
    }
    
    • 首先通过@Configuration注解,让Spring来加载该类配置。再通过@EnableSwagger2注解来启用Swagger2。
    • 其次通过createRestApi函数创建Docket的Bean之后,使用apiInfo()用来创建该Api的基本信息(这些基本信息会展现在文档页面中)。-
    • 再次通过select()函数返回一个ApiSelectorBuilder实例用来控制哪些接口暴露给Swagger来展现,本例采用指定扫描的包路径来定义,Swagger会扫描该包下所有Controller定义的API,并产生文档内容,这里除了被@ApiIgnore指定的请求。

    实际使用:

    import com.ck.demo.bean.BlogsUserInfo;
    import com.ck.demo.service.UserInfoService;
    import io.swagger.annotations.ApiImplicitParam;
    import io.swagger.annotations.ApiOperation;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.jdbc.core.BeanPropertyRowMapper;
    import org.springframework.jdbc.core.JdbcTemplate;
    import org.springframework.jdbc.core.RowMapper;
    import org.springframework.web.bind.annotation.PathVariable;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RequestMethod;
    import org.springframework.web.bind.annotation.RestController;
    import org.springframework.web.context.request.RequestContextHolder;
    import org.springframework.web.context.request.ServletRequestAttributes;
    
    import javax.annotation.Resource;
    import javax.servlet.http.HttpServletRequest;
    import java.util.List;
    
    @RestController
    @RequestMapping("user")
    public class UsreInfoController {
        @Resource
        private JdbcTemplate jdbcTemplate;
    
        @Autowired
        private UserInfoService userInfoService;
    
        @ApiOperation(value = "获取用户列表",notes = "")
        @RequestMapping(value = "/getusers",method = RequestMethod.GET)
        public Object getDbType() {
            String sql = "select * from blogs_user_info";
            RowMapper<BlogsUserInfo> rowMapper = new BeanPropertyRowMapper<BlogsUserInfo>(BlogsUserInfo.class);
            List<BlogsUserInfo> list = jdbcTemplate.query(sql, rowMapper);
            ServletRequestAttributes servletRequestAttributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
            HttpServletRequest request = servletRequestAttributes.getRequest();
            Integer times = (Integer) request.getSession().getAttribute("times");
            ;
            if (times == null) {
                times = new Integer(1);
            } else {
                times = new Integer(times.intValue() + 1);
            }
            request.getSession().setAttribute("times", times);
            System.out.println("***********************" + times);
            return list;
        }
    
        @ApiOperation(value = "根据用户ID获取用户信息",notes = "")
        @ApiImplicitParam(name = "id", value = "用户ID", required = true, dataType = "Long")
        @RequestMapping("/getId/{id}")
        public Object getUserInfoByParmityKey(@PathVariable String id) {
            BlogsUserInfo blogsUserInfo = userInfoService.getUserInfoByParmityKeyService(id);
            return blogsUserInfo;
        }
    
    }
    
    

    注解语法用例:

    @Api:用在请求的类上,表示对类的说明
        tags="说明该类的作用,可以在UI界面上看到的注解"
        value="该参数没什么意义,在UI界面上也看到,所以不需要配置"
        
    eg: @Api(tags = "用户信息Controller")
    
    
    
    @ApiOperation:用在请求的方法上,说明方法的用途、作用
        value="说明方法的用途、作用"
        notes="方法的备注说明"
        
    eg: @ApiOperation(value="用户登录",notes="手机号、密码都是必填!")
    
    
    
    @ApiImplicitParams:用在请求的方法上,表示一组参数说明
        @ApiImplicitParam:用在@ApiImplicitParams注解中,指定一个请求参数的各个方面
            name:参数名
            value:参数的汉字说明、解释
            required:参数是否必须传
            paramType:参数放在哪个地方
                · header --> 请求参数的获取:@RequestHeader
                · query --> 请求参数的获取:@RequestParam
                · path(用于restful接口)--> 请求参数的获取:@PathVariable
                · body(不常用)
                · form(不常用)    
            dataType:参数类型,默认String,其它值dataType="Integer"       
            defaultValue:参数的默认值
            
     eg: @ApiImplicitParams({
            @ApiImplicitParam(name="username",value="用户名",required=true,paramType="String"),
            @ApiImplicitParam(name="password",value="密码",required=true,paramType="form"),
            @ApiImplicitParam(name="vcode",value="验证码",required=true,paramType="form",dataType="Integer")
    		})
    
    
    
    @ApiResponses:用在请求的方法上,表示一组响应
        @ApiResponse:用在@ApiResponses中,一般用于表达一个错误的响应信息
            code:数字,例如400
            message:信息,例如"请求参数没填好"
            response:抛出异常的类
            
     eg:@ApiOperation(value = "select1请求",notes = "多个参数,多种的查询参数类型")
         @ApiResponses({
            @ApiResponse(code=400,message="请求参数没填好"),
            @ApiResponse(code=404,message="请求路径没有或页面跳转路径不对")
             })
    
     
    @ApiModel:用于响应类上,表示一个返回响应数据的信息
                (这种一般用在post创建的时候,使用@RequestBody这样的场景,
                请求参数无法使用@ApiImplicitParam注解进行描述的时候)
        @ApiModelProperty:用在属性上,描述响应类的属性
    
    eg: 
        import io.swagger.annotations.ApiModel;
        import io.swagger.annotations.ApiModelProperty;
        import java.io.Serializable;
    
        @ApiModel(description= "返回响应数据")
        public class RestMessage implements Serializable{
    
            @ApiModelProperty(value = "是否成功")
            private boolean success=true;
            @ApiModelProperty(value = "返回对象")
            private Object data;
            @ApiModelProperty(value = "错误编号")
            private Integer errCode;
            @ApiModelProperty(value = "错误信息")
            private String message;
    
            /* getter/setter */
        }
    
    

    3、在Swagger可视化界面展示

    输入 http://localhost:8080/user/getusers  结果如下:

    {"uuid":"d882f714-c015-4c46-a92e-5d7e2a8b3380","name":"丫丫","age":12,"address":"浙江省","phone":"1898*****63","company":"alibaba"}
    

    在浏览器打开:http://localhost:8080/swagger-ui.html
    页面如下:
    image.png

    详细信息:

    get请求

    image.png

    post请求

    image.png

    delete请求

    image.png

    4、详情测试

    get请求测试:

    image.png

    post请求测试

    image.png

    此时执行成功,已经达到所需的目标,End。

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  • 原文地址:https://www.cnblogs.com/tidetrace/p/10895183.html
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