Java--Swagger-UI实现在线API文档

冷不防 2023-10-05 15:36 45阅读 0赞

## 一、Swagger-UI ##

Swagger-UI是HTML, Javascript, CSS的一个集合，可以动态地根据注解生成在线API文档。

##  ##

## 二、常用注解 ##

\- @Api()用于类；用于修饰Controller类，生成Controller相关文档信息

表示标识这个类是swagger的资源

tags–表示说明

value–也是说明，可以使用tags替代

但是tags如果有多个值，会生成多个list

\- @ApiOperation()用于方法；用于修饰Controller类中的方法，生成接口方法相关文档信息

表示一个http请求的操作

value用于方法描述

notes用于提示内容

tags可以重新分组（视情况而用）

\- @ApiParam()用于方法，参数，字段说明；用于修饰接口中的参数，生成接口参数相关文档信息

表示对参数的添加元数据（说明或是否必填等）

name–参数名

value–参数说明

required–是否必填

\- @ApiModel()用于类

表示对类进行说明，用于参数用实体类接收

value–表示对象名

description–描述

\- @ApiModelProperty()用于方法，字段；用于修饰实体类的属性，当实体类是请求参数或返回结果时，直接生成相关文档信息

表示对model属性的说明或者数据操作更改

value–字段说明

name–重写属性名字

dataType–重写属性类型

required–是否必填

example–举例说明

hidden–隐藏

\- @ApiIgnore()用于类，方法，方法参数

表示这个方法或者类被忽略

\- @ApiImplicitParam() 用于方法

表示单独的请求参数

\- @ApiImplicitParams() 用于方法

包含多个 @ApiImplicitParam

name–参数ming

value–参数说明

dataType–数据类型

paramType–参数类型

example–举例说明

##    **三、整合Swagger-UI** ##

#### 1、添加依赖库 ####

在pom.xml文件中添加Swagger-UI的相关依赖

<dependency>
      <groupId>io.springfox</groupId>
      <artifactId>springfox-swagger2</artifactId>
      <version>2.7.0</version>
    </dependency>
    <dependency>
      <groupId>io.springfox</groupId>
      <artifactId>springfox-swagger-ui</artifactId>
      <version>2.7.0</version>
    </dependency>

#### 2、添加Swagger-UI的Java配置文件 ####

Swagger对生成API文档的范围有三种不同的选择

*  生成指定包下面的类的API文档
 *  生成有指定注解的类的API文档
 *  生成有指定注解的方法的API文档

package com.macro.mall.tiny.config;
    
    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;
    
    /**
     * Swagger2API文档的配置
     */
    @Configuration
    @EnableSwagger2
    public class Swagger2Config {
        @Bean
        public Docket createRestApi(){
            return new Docket(DocumentationType.SWAGGER_2)
                    .apiInfo(apiInfo())
                    .select()
                    //为当前包下controller生成API文档
                    .apis(RequestHandlerSelectors.basePackage("com.macro.mall.tiny.controller"))
                    //为有@Api注解的Controller生成API文档
    //                .apis(RequestHandlerSelectors.withClassAnnotation(Api.class))
                    //为有@ApiOperation注解的方法生成API文档
    //                .apis(RequestHandlerSelectors.withMethodAnnotation(ApiOperation.class))
                    .paths(PathSelectors.any())
                    .build();
        }
    
        private ApiInfo apiInfo() {
            return new ApiInfoBuilder()
                    .title("SwaggerUI演示")
                    .description("mall-tiny")
                    .contact("xiaoming")
                    .version("1.0")
                    .build();
        }
    }

#### 3、给Controller添加上Swagger注解 ####

package com.macro.mall.tiny.controller
    import com.macro.mall.tiny.mbg.model.PmsBrand;
    import com.macro.mall.tiny.service.PmsBrandService;
    import io.swagger.annotations.Api;
    import io.swagger.annotations.ApiOperation;
    import io.swagger.annotations.ApiParam;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Controller;
    import org.springframework.validation.BindingResult;
    import org.springframework.web.bind.annotation.*;
    
    import java.util.List;
    
    
    /**
     * 品牌管理Controller
     * Created by macro on 2019/4/19.
     */
    @Api(tags = "PmsBrandController", description = "商品品牌管理")
    @Controller
    @RequestMapping("/brand")
    public class PmsBrandController {
        @Autowired
        private PmsBrandService brandService;
    
        private static final Logger LOGGER = LoggerFactory.getLogger(PmsBrandController.class);
    
        @ApiOperation("获取所有品牌列表")
        @RequestMapping(value = "listAll", method = RequestMethod.GET)
        @ResponseBody
        public CommonResult<List<PmsBrand>> getBrandList() {
            return null;
        }
    
        @ApiOperation("添加品牌")
        @RequestMapping(value = "/create", method = RequestMethod.POST)
        @ResponseBody
        public CommonResult createBrand(@RequestBody PmsBrand pmsBrand) {
            return null;
        }
    
        @ApiOperation("更新指定id品牌信息")
        @RequestMapping(value = "/update/{id}", method = RequestMethod.POST)
        @ResponseBody
        public CommonResult updateBrand(@PathVariable("id") Long id, @RequestBody PmsBrand pmsBrandDto, BindingResult result) {
            return null;
        }
    
        @ApiOperation("删除指定id的品牌")
        @RequestMapping(value = "/delete/{id}", method = RequestMethod.GET)
        @ResponseBody
        public CommonResult deleteBrand(@PathVariable("id") Long id) {
            return null;
        }
    
        @ApiOperation("分页查询品牌列表")
        @RequestMapping(value = "/list", method = RequestMethod.GET)
        @ResponseBody
        public CommonResult<CommonPage<PmsBrand>> listBrand(@RequestParam(value = "pageNum", defaultValue = "1")
                                                            @ApiParam("页码") Integer pageNum,
                                                            @RequestParam(value = "pageSize", defaultValue = "3")
                                                            @ApiParam("每页数量") Integer pageSize) {
            List<PmsBrand> brandList = brandService.listBrand(pageNum, pageSize);
            return null;
        }
    
        @ApiOperation("获取指定id的品牌详情")
        @RequestMapping(value = "/{id}", method = RequestMethod.GET)
        @ResponseBody
        public CommonResult<PmsBrand> brand(@PathVariable("id") Long id) {
            return null;
        }
    }

#### 4、 修改MyBatis Generator注释生成规则 ####

package com.macro.mall.tiny.mbg;
    
    import org.mybatis.generator.api.IntrospectedColumn;
    import org.mybatis.generator.api.IntrospectedTable;
    import org.mybatis.generator.api.dom.java.CompilationUnit;
    import org.mybatis.generator.api.dom.java.Field;
    import org.mybatis.generator.api.dom.java.FullyQualifiedJavaType;
    import org.mybatis.generator.internal.DefaultCommentGenerator;
    import org.mybatis.generator.internal.util.StringUtility;
    
    import java.util.Properties;
    
    /**
     * 自定义注释生成器
     * Created by macro on 2018/4/26.
     */
    public class CommentGenerator extends DefaultCommentGenerator {
        private boolean addRemarkComments = false;
        private static final String EXAMPLE_SUFFIX="Example";
        private static final String API_MODEL_PROPERTY_FULL_CLASS_NAME="io.swagger.annotations.ApiModelProperty";
    
        /**
         * 设置用户配置的参数
         */
        @Override
        public void addConfigurationProperties(Properties properties) {
            super.addConfigurationProperties(properties);
            this.addRemarkComments = StringUtility.isTrue(properties.getProperty("addRemarkComments"));
        }
    
        /**
         * 给字段添加注释
         */
        @Override
        public void addFieldComment(Field field, IntrospectedTable introspectedTable,
                                    IntrospectedColumn introspectedColumn) {
            String remarks = introspectedColumn.getRemarks();
            //根据参数和备注信息判断是否添加备注信息
            if(addRemarkComments&&StringUtility.stringHasValue(remarks)){
    //            addFieldJavaDoc(field, remarks);
                //数据库中特殊字符需要转义
                if(remarks.contains("\"")){
                    remarks = remarks.replace("\"","'");
                }
                //给model的字段添加swagger注解
                field.addJavaDocLine("@ApiModelProperty(value = \""+remarks+"\")");
            }
        }
    
        /**
         * 给model的字段添加注释
         */
        private void addFieldJavaDoc(Field field, String remarks) {
            //文档注释开始
            field.addJavaDocLine("/**");
            //获取数据库字段的备注信息
            String[] remarkLines = remarks.split(System.getProperty("line.separator"));
            for(String remarkLine:remarkLines){
                field.addJavaDocLine(" * "+remarkLine);
            }
            addJavadocTag(field, false);
            field.addJavaDocLine(" */");
        }
    
        @Override
        public void addJavaFileComment(CompilationUnit compilationUnit) {
            super.addJavaFileComment(compilationUnit);
            //只在model中添加swagger注解类的导入
            if(!compilationUnit.isJavaInterface()&&!compilationUnit.getType().getFullyQualifiedName().contains(EXAMPLE_SUFFIX)){
                compilationUnit.addImportedType(new FullyQualifiedJavaType(API_MODEL_PROPERTY_FULL_CLASS_NAME));
            }
        }
    }

#### 5、运行代码生成器重新生成model类 ####

运行com.macro.mall.tiny.mbg.Generator的main方法，重新生成mbg中的代码，可以看到PmsBrand类中已经自动根据数据库注释添加了@ApiModelProperty注解

package com.macro.mall.tiny.mbg.model;
    
    import io.swagger.annotations.ApiModelProperty;
    import java.io.Serializable;
    
    public class PmsBrand implements Serializable {
        private Long id;
    
        private String name;
    
        @ApiModelProperty(value = "首字母")
        private String firstLetter;
    
        private Integer sort;
    
        @ApiModelProperty(value = "是否为品牌制造商：0->不是；1->是")
        private Integer factoryStatus;
    
        private Integer showStatus;
    
        @ApiModelProperty(value = "产品数量")
        private Integer productCount;
    
        @ApiModelProperty(value = "产品评论数量")
        private Integer productCommentCount;
    
        @ApiModelProperty(value = "品牌logo")
        private String logo;
    
        @ApiModelProperty(value = "专区大图")
        private String bigPic;
    
        @ApiModelProperty(value = "品牌故事")
        private String brandStory;
    
        private static final long serialVersionUID = 1L;
    
        public Long getId() {
            return id;
        }
    
        public void setId(Long id) {
            this.id = id;
        }
    
        public String getName() {
            return name;
        }
    
        public void setName(String name) {
            this.name = name;
        }
    
        public String getFirstLetter() {
            return firstLetter;
        }
    
        public void setFirstLetter(String firstLetter) {
            this.firstLetter = firstLetter;
        }
    
        public Integer getSort() {
            return sort;
        }
    
        public void setSort(Integer sort) {
            this.sort = sort;
        }
    
        public Integer getFactoryStatus() {
            return factoryStatus;
        }
    
        public void setFactoryStatus(Integer factoryStatus) {
            this.factoryStatus = factoryStatus;
        }
    
        public Integer getShowStatus() {
            return showStatus;
        }
    
        public void setShowStatus(Integer showStatus) {
            this.showStatus = showStatus;
        }
    
        public Integer getProductCount() {
            return productCount;
        }
    
        public void setProductCount(Integer productCount) {
            this.productCount = productCount;
        }
    
        public Integer getProductCommentCount() {
            return productCommentCount;
        }
    
        public void setProductCommentCount(Integer productCommentCount) {
            this.productCommentCount = productCommentCount;
        }
    
        public String getLogo() {
            return logo;
        }
    
        public void setLogo(String logo) {
            this.logo = logo;
        }
    
        public String getBigPic() {
            return bigPic;
        }
    
        public void setBigPic(String bigPic) {
            this.bigPic = bigPic;
        }
    
        public String getBrandStory() {
            return brandStory;
        }
    
        public void setBrandStory(String brandStory) {
            this.brandStory = brandStory;
        }
    
        @Override
        public String toString() {
            StringBuilder sb = new StringBuilder();
            sb.append(getClass().getSimpleName());
            sb.append(" [");
            sb.append("Hash = ").append(hashCode());
            sb.append(", id=").append(id);
            sb.append(", name=").append(name);
            sb.append(", firstLetter=").append(firstLetter);
            sb.append(", sort=").append(sort);
            sb.append(", factoryStatus=").append(factoryStatus);
            sb.append(", showStatus=").append(showStatus);
            sb.append(", productCount=").append(productCount);
            sb.append(", productCommentCount=").append(productCommentCount);
            sb.append(", logo=").append(logo);
            sb.append(", bigPic=").append(bigPic);
            sb.append(", brandStory=").append(brandStory);
            sb.append(", serialVersionUID=").append(serialVersionUID);
            sb.append("]");
            return sb.toString();
        }
    }

#### 6、访问Swagger-UI接口文档地址 ####

接口地址：[http://localhost:8080/swagger-ui.html][http_localhost_8080_swagger-ui.html]

可以看到接口列表，以及请求参数，返回响应参数

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L01pbmdnZVFpbmdjaHVu_size_16_color_FFFFFF_t_70][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L01pbmdnZVFpbmdjaHVu_size_16_color_FFFFFF_t_70 1][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L01pbmdnZVFpbmdjaHVu_size_16_color_FFFFFF_t_70 2][]

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具体可参考项目[http://www.macrozheng.com/\#/architect/mall\_arch\_02?id=%e8%ae%bf%e9%97%aeswagger-ui%e6%8e%a5%e5%8f%a3%e6%96%87%e6%a1%a3%e5%9c%b0%e5%9d%80][http_www.macrozheng.com_architect_mall_arch_02_id_e8_ae_bf_e9_97_aeswagger-ui_e6_8e_a5_e5_8f_a3_e6_96_87_e6_a1_a3_e5_9c_b0_e5_9d_80]

[http_localhost_8080_swagger-ui.html]: http://localhost:8080/swagger-ui.html
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L01pbmdnZVFpbmdjaHVu_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20201211171418780.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L01pbmdnZVFpbmdjaHVu,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L01pbmdnZVFpbmdjaHVu_size_16_color_FFFFFF_t_70 1]: https://img-blog.csdnimg.cn/20201211171429348.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L01pbmdnZVFpbmdjaHVu,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L01pbmdnZVFpbmdjaHVu_size_16_color_FFFFFF_t_70 2]: https://img-blog.csdnimg.cn/20201211171439617.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L01pbmdnZVFpbmdjaHVu,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L01pbmdnZVFpbmdjaHVu_size_16_color_FFFFFF_t_70 3]: https://img-blog.csdnimg.cn/20201211171449419.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L01pbmdnZVFpbmdjaHVu,size_16,color_FFFFFF,t_70
[http_www.macrozheng.com_architect_mall_arch_02_id_e8_ae_bf_e9_97_aeswagger-ui_e6_8e_a5_e5_8f_a3_e6_96_87_e6_a1_a3_e5_9c_b0_e5_9d_80]: http://www.macrozheng.com/#/architect/mall_arch_02?id=%E8%AE%BF%E9%97%AEswagger-ui%E6%8E%A5%E5%8F%A3%E6%96%87%E6%A1%A3%E5%9C%B0%E5%9D%80