此教程基于黑马程序员Java品达通用权限项目,哔哩哔哩链接:https://www.bilibili.com/video/BV1tw411f79E?p=30
相信无论是前端还是后端开发,都或多或少地被接口文档折磨过。前端经常抱怨后端给的接口文档与实际情况不一致。后端又觉得编写及维护接口文档会耗费不少精力,经常来不及更新。
其实无论是前端调用后端,还是后端调用后端,都期望有一个好的接口文档。但是这个接口文档对于程序员来说,就跟注释一样,经常会抱怨别人写的代码没有写注释,然而自己写起代码起来,最讨厌的,也是写注释。所以仅仅只通过强制来规范大家是不够的,随着时间推移,版本迭代,接口文档往往很容易就跟不上代码了。
使用Swagger你只需要按照它的规范去定义接口及接口相关的信息。再通过Swagger衍生出来的一系列项目和工具,就可以做到生成各种格式的接口文档,生成多种语言的客户端和服务端的代码,以及在线接口调试页面等等。
这样,如果按照新的开发模式,在开发新版本或者迭代版本的时候,只需要更新Swagger描述文件,就可以自动生成接口文档和客户端服务端代码,做到调用端代码、服务端代码以及接口文档的一致性。
为了简化swagger的使用,Spring框架对swagger进行了整合,建立了Spring-swagger项目,后面改成了现在的Springfox。通过在项目中引入Springfox,可以扫描相关的代码,生成描述文件,进而生成与代码一致的接口文档和客户端代码。
Springfox对应的maven坐标如下:
<dependency>
<groupId>io.springfoxgroupId>
<artifactId>springfox-swagger-uiartifactId>
<version>2.9.2version>
dependency>
<dependency>
<groupId>io.springfoxgroupId>
<artifactId>springfox-swagger2artifactId>
<version>2.9.2version>
dependency>
注解 | 说明 |
---|---|
@Api | 用在请求的类上,例如Controller,表示对类的说明 |
@ApiModel | 用在类上,通常是实体类,表示一个返回响应数据的信息 |
@ApiModelProperty | 用在属性上,描述响应类的属性 |
@ApiOperation | 用在请求的方法上,说明方法的用途、作用 |
@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 |
第一步:创建maven工程swagger_demo并配置pom.xml文件
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0modelVersion>
<parent>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-parentartifactId>
<version>2.2.2.RELEASEversion>
<relativePath/>
parent>
<groupId>cn.itcastgroupId>
<artifactId>swagger_demoartifactId>
<version>0.0.1-SNAPSHOTversion>
<name>swagger_demoname>
<description>Demo project for Spring Bootdescription>
<properties>
<java.version>1.8java.version>
properties>
<dependencies>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-webartifactId>
dependency>
<dependency>
<groupId>io.springfoxgroupId>
<artifactId>springfox-swagger-uiartifactId>
<version>2.9.2version>
dependency>
<dependency>
<groupId>io.springfoxgroupId>
<artifactId>springfox-swagger2artifactId>
<version>2.9.2version>
dependency>
<dependency>
<groupId>org.projectlombokgroupId>
<artifactId>lombokartifactId>
dependency>
dependencies>
project>
第二步:创建application.yml文件
server:
port: 9000
第三步: 创建实体类User和Menu
package cn.itcast.entity;
import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
import lombok.Data;
@Data
// @ApiModel用在类上,通常是实体类,表示一个返回响应数据的信息
@ApiModel(description = "用户实体")
public class User {
// @ApiModelProperty用在属性上,描述响应类的属性
@ApiModelProperty(value = "主键")
private int id;
@ApiModelProperty(value = "姓名")
private String name;
@ApiModelProperty(value = "年龄")
private int age;
@ApiModelProperty(value = "地址")
private String address;
}
package cn.itcast.entity;
import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
import lombok.Data;
@Data
// @ApiModel用在类上,通常是实体类,表示一个返回响应数据的信息
@ApiModel(description = "菜单实体")
public class Menu {
// @ApiModelProperty用在属性上,描述响应类的属性
@ApiModelProperty(value = "主键")
private int id;
@ApiModelProperty(value = "菜单名称")
private String name;
}
第四步:创建UserController和MenuController
package cn.itcast.controller.user;
import cn.itcast.entity.User;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiImplicitParams;
import io.swagger.annotations.ApiOperation;
import org.springframework.web.bind.annotation.*;
import java.util.ArrayList;
import java.util.List;
@RestController
@RequestMapping("/user")
// @Api用在请求的类上,例如Controller,表示对类的说明
@Api(tags = "用户控制器")
public class UserController {
@GetMapping("/getUsers")
// @ApiOperation用在请求的方法上,说明方法的用途、作用
@ApiOperation(value = "查询所有用户", notes = "查询所有用户信息")
public List<User> getAllUsers(){
User user = new User();
user.setId(100);
user.setName("itcast");
user.setAge(20);
user.setAddress("bj");
List<User> list = new ArrayList<>();
list.add(user);
return list;
}
@PostMapping("/save")
@ApiOperation(value = "新增用户", notes = "新增用户信息")
public String save(@RequestBody User user){
return "OK";
}
@PutMapping("/update")
@ApiOperation(value = "修改用户", notes = "修改用户信息")
public String update(@RequestBody User user){
return "OK";
}
@DeleteMapping("/delete")
@ApiOperation(value = "删除用户", notes = "删除用户信息")
public String delete(int id){
return "OK";
}
// @ApiImplicitParams用在请求的方法上,表示一组参数说明,此处表示对pageNum和pageSize这两个参数进行说明
@ApiImplicitParams({
// @ApiImplicitParam用在@ApiImplicitParams注解中,指定一个请求参数的各个方面
@ApiImplicitParam(name = "pageNum", value = "页码",
required = true, type = "Integer"),
@ApiImplicitParam(name = "pageSize", value = "每页条数",
required = true, type = "Integer"),
})
@ApiOperation(value = "分页查询用户信息")
@GetMapping(value = "page/{pageNum}/{pageSize}")
public String findByPage(@PathVariable Integer pageNum,
@PathVariable Integer pageSize) {
return "OK";
}
}
package cn.itcast.controller.menu;
import cn.itcast.entity.Menu;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiImplicitParams;
import io.swagger.annotations.ApiOperation;
import org.springframework.web.bind.annotation.*;
import java.util.ArrayList;
import java.util.List;
@RestController
@RequestMapping("/menu")
@Api(tags = "菜单控制器")
public class MenuController {
@GetMapping("/getMenus")
@ApiOperation(value = "查询所有菜单", notes = "查询所有菜单信息")
public List<Menu> getMenus(){
Menu menu = new Menu();
menu.setId(100);
menu.setName("itcast");
List<Menu> list = new ArrayList<>();
list.add(menu);
return list;
}
@PostMapping("/save")
@ApiOperation(value = "新增菜单", notes = "新增菜单信息")
public String save(@RequestBody Menu menu){
return "OK";
}
@PutMapping("/update")
@ApiOperation(value = "修改菜单", notes = "修改菜单信息")
public String update(@RequestBody Menu menu){
return "OK";
}
@DeleteMapping("/delete")
@ApiOperation(value = "删除菜单", notes = "删除菜单信息")
public String delete(int id){
return "OK";
}
@ApiImplicitParams({
@ApiImplicitParam(name = "pageNum", value = "页码",
required = true, type = "Integer"),
@ApiImplicitParam(name = "pageSize", value = "每页条数",
required = true, type = "Integer"),
})
@ApiOperation(value = "分页查询菜单信息")
@GetMapping(value = "page/{pageNum}/{pageSize}")
public String findByPage(@PathVariable Integer pageNum,
@PathVariable Integer pageSize) {
return "OK";
}
}
第五步:创建配置类SwaggerAutoConfiguration
package cn.itcast.config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.builders.RequestHandlerSelectors;
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;
@Configuration
public class SwaggerAutoConfiguration {
// 用户接口组
// Docket表示接口文档,用于封装接口文档相关信息(如记录扫描哪些包、文档名字、文档信息等)
@Bean
public Docket createRestApi1() {
Docket docket = new Docket(DocumentationType.SWAGGER_2)
// groupName : 接口文档组名字
.apiInfo(apiInfo()).groupName("用户接口组")
.select()
// basePackage 表示扫描那个包
.apis(RequestHandlerSelectors.basePackage("cn.itcast.controller.user"))
.build();
return docket;
}
// 菜单接口组
@Bean
public Docket createRestApi2() {
Docket docket = new Docket(DocumentationType.SWAGGER_2)
.apiInfo(apiInfo()).groupName("菜单接口组")
.select()
//为当前包路径
.apis(RequestHandlerSelectors.basePackage("cn.itcast.controller.menu"))
.build();
return docket;
}
//构建 api文档的详细信息
private ApiInfo apiInfo() {
return new ApiInfoBuilder()
//页面标题
.title("API接口文档")
//创建人
.contact(new Contact("黑马程序员", "http://www.itheima.com", ""))
//版本号
.version("1.0")
//描述
.description("API 描述")
.build();
}
}
第六步:创建启动类SwaggerDemoApplication
package cn.itcast;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
// 启用swagger
@EnableSwagger2
public class SwaggerDemoApplication {
public static void main(String[] args) {
SpringApplication.run(SwaggerDemoApplication.class, args);
}
}
执行启动类main方法启动项目,访问地址:http://localhost:9000/swagger-ui.html
之后我们可以在swagger中进行调试,以删除用户为例,
这样,前后端人员就可以基于这份接口文档对系统进行开发、调试。
补充:如果我们不想要对接口文档进行分组的话,改造一下SwaggerAutoConfiguration即可,代码如下
package cn.itcast.config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.builders.RequestHandlerSelectors;
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;
@Configuration
public class SwaggerAutoConfiguration {
// 用户接口组
// Docket表示接口文档,用于封装接口文档相关信息(如记录扫描哪些包、文档名字、文档信息等)
@Bean
public Docket createRestApi1() {
Docket docket = new Docket(DocumentationType.SWAGGER_2)
// groupName : 接口文档组名字
.apiInfo(apiInfo())
.select()
// basePackage 表示扫描那个包
.apis(RequestHandlerSelectors.basePackage("cn.itcast.controller"))
.build();
return docket;
}
//构建 api文档的详细信息
private ApiInfo apiInfo() {
return new ApiInfoBuilder()
//页面标题
.title("API接口文档")
//创建人
.contact(new Contact("黑马程序员", "http://www.itheima.com", ""))
//版本号
.version("1.0")
//描述
.description("API 描述")
.build();
}
}
重启项目,发现已经不分组了,输入http://localhost:9000/swagger-ui.html
,
knife4j是为Java MVC框架集成Swagger生成Api文档的增强解决方案,前身是swagger-bootstrap-ui,取名knife4j是希望它能像一把匕首一样小巧、轻量,并且功能强悍。其底层是对Springfox的封装,使用方式也和Springfox一致,只是对接口文档UI进行了优化。
核心功能:
文档说明:根据Swagger的规范说明,详细列出接口文档的说明,包括接口地址、类型、请求示例、请求参数、响应示例、响应参数、响应码等信息,对该接口的使用情况一目了然。
在线调试:提供在线接口联调的强大功能,自动解析当前接口参数,同时包含表单验证,调用参数可返回接口响应内容、headers、响应时间、响应状态码等信息,帮助开发者在线调试。
第一步:创建maven工程knife4j_demo并配置pom.xml文件
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0modelVersion>
<parent>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-parentartifactId>
<version>2.2.2.RELEASEversion>
<relativePath/>
parent>
<groupId>cn.itcastgroupId>
<artifactId>knife4j_demoartifactId>
<version>1.0-SNAPSHOTversion>
<dependencies>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-webartifactId>
dependency>
<dependency>
<groupId>com.github.xiaoymingroupId>
<artifactId>knife4j-spring-boot-starterartifactId>
<version>2.0.1version>
dependency>
<dependency>
<groupId>org.projectlombokgroupId>
<artifactId>lombokartifactId>
dependency>
dependencies>
project>
我们通过查看依赖关系发现,knife4j内部已经集成了springfox-swagger2
第二步: 创建实体类User和Menu
package cn.itcast.entity;
import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
import lombok.Data;
@Data
@ApiModel(description = "用户实体")
public class User {
@ApiModelProperty(value = "主键")
private int id;
@ApiModelProperty(value = "姓名")
private String name;
@ApiModelProperty(value = "年龄")
private int age;
@ApiModelProperty(value = "地址")
private String address;
}
package cn.itcast.entity;
import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
import lombok.Data;
@Data
@ApiModel(description = "菜单实体")
public class Menu {
@ApiModelProperty(value = "主键")
private int id;
@ApiModelProperty(value = "菜单名称")
private String name;
}
第三步:创建UserController和MenuController
package cn.itcast.controller.user;
import cn.itcast.entity.User;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiImplicitParams;
import io.swagger.annotations.ApiOperation;
import org.springframework.web.bind.annotation.*;
import java.util.ArrayList;
import java.util.List;
@RestController
@RequestMapping("/user")
@Api(tags = "用户控制器")
public class UserController {
@GetMapping("/getUsers")
@ApiOperation(value = "查询所有用户", notes = "查询所有用户信息")
public List<User> getAllUsers(){
User user = new User();
user.setId(100);
user.setName("itcast");
user.setAge(20);
user.setAddress("bj");
List<User> list = new ArrayList<>();
list.add(user);
return list;
}
@PostMapping("/save")
@ApiOperation(value = "新增用户", notes = "新增用户信息")
public String save(@RequestBody User user){
return "OK";
}
@PutMapping("/update")
@ApiOperation(value = "修改用户", notes = "修改用户信息")
public String update(@RequestBody User user){
return "OK";
}
@DeleteMapping("/delete")
@ApiOperation(value = "删除用户", notes = "删除用户信息")
public String delete(int id){
return "OK";
}
@ApiImplicitParams({
@ApiImplicitParam(name = "pageNum", value = "页码",
required = true, type = "Integer"),
@ApiImplicitParam(name = "pageSize", value = "每页条数",
required = true, type = "Integer"),
})
@ApiOperation(value = "分页查询用户信息")
@GetMapping(value = "page/{pageNum}/{pageSize}")
public String findByPage(@PathVariable Integer pageNum,
@PathVariable Integer pageSize) {
return "OK";
}
}
package cn.itcast.controller.menu;
import cn.itcast.entity.Menu;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiImplicitParams;
import io.swagger.annotations.ApiOperation;
import org.springframework.web.bind.annotation.*;
import java.util.ArrayList;
import java.util.List;
@RestController
@RequestMapping("/menu")
@Api(tags = "菜单控制器")
public class MenuController {
@GetMapping("/getMenus")
@ApiOperation(value = "查询所有菜单", notes = "查询所有菜单信息")
public List<Menu> getMenus(){
Menu menu = new Menu();
menu.setId(100);
menu.setName("itcast");
List<Menu> list = new ArrayList<>();
list.add(menu);
return list;
}
@PostMapping("/save")
@ApiOperation(value = "新增菜单", notes = "新增菜单信息")
public String save(@RequestBody Menu menu){
return "OK";
}
@PutMapping("/update")
@ApiOperation(value = "修改菜单", notes = "修改菜单信息")
public String update(@RequestBody Menu menu){
return "OK";
}
@DeleteMapping("/delete")
@ApiOperation(value = "删除菜单", notes = "删除菜单信息")
public String delete(int id){
return "OK";
}
@ApiImplicitParams({
@ApiImplicitParam(name = "pageNum", value = "页码",
required = true, type = "Integer"),
@ApiImplicitParam(name = "pageSize", value = "每页条数",
required = true, type = "Integer"),
})
@ApiOperation(value = "分页查询菜单信息")
@GetMapping(value = "page/{pageNum}/{pageSize}")
public String findByPage(@PathVariable Integer pageNum,
@PathVariable Integer pageSize) {
return "OK";
}
}
第四步:创建配置属性类SwaggerProperties,相比于之前我们对swagger的直接在配置文件中写死,这样可以对接口文档进行灵活的配置,这样我们直接可以通过在application.yml中进行接口文档的配置分组以及不分组。
package cn.itcast.config;
import lombok.*;
import org.springframework.boot.context.properties.ConfigurationProperties;
import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
/*
*配置属性类,用于封装接口文档相关属性,从配置文件读取信息封装成当前对象
*/
@Data
@ConfigurationProperties(prefix = "pinda.swagger")
public class SwaggerProperties {
private String title = "在线文档"; //标题
private String group = ""; //自定义组名
private String description = "在线文档"; //描述
private String version = "1.0"; //版本
private Contact contact = new Contact(); //联系人
private String basePackage = "com.itheima.pinda"; //swagger会解析的包路径
private List<String> basePath = new ArrayList<>(); //swagger会解析的url规则
private List<String> excludePath = new ArrayList<>();//在basePath基础上需要排除的url规则
private Map<String, DocketInfo> docket = new LinkedHashMap<>(); //分组文档
public String getGroup() {
if (group == null || "".equals(group)) {
return title;
}
return group;
}
@Data
public static class DocketInfo {
private String title = "在线文档"; //标题
private String group = ""; //自定义组名
private String description = "在线文档"; //描述
private String version = "1.0"; //版本
private Contact contact = new Contact(); //联系人
private String basePackage = ""; //swagger会解析的包路径
private List<String> basePath = new ArrayList<>(); //swagger会解析的url规则
private List<String> excludePath = new ArrayList<>();//在basePath基础上需要排除的url
public String getGroup() {
if (group == null || "".equals(group)) {
return title;
}
return group;
}
}
@Data
public static class Contact {
private String name = "pinda"; //联系人
private String url = ""; //联系人url
private String email = ""; //联系人email
}
}
第五步:创建application.yml文件
server:
port: 7788
pinda:
swagger:
title: 接口文档
description: 这是接口文档
version: 1.0
enabled: true #是否启用swagger
docket: # 对接口文档进行分组,不写则不进行分组,我们在SwaggerProperties定义docket为Map
user: # user接口文档组
title: 用户模块
group: 用户模块组
base-package: cn.itcast.controller.user
menu: # menu接口文档组
title: 菜单模块
group: 菜单模块组
base-package: cn.itcast.controller.menu
第六步:创建配置类SwaggerAutoConfiguration
package cn.itcast.config;
import com.google.common.base.Predicate;
import com.google.common.base.Predicates;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.BeanFactoryAware;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.config.ConfigurableBeanFactory;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.bind.annotation.RequestMethod;
import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
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;
import java.util.ArrayList;
import java.util.LinkedList;
import java.util.List;
@Configuration
// swagger开关,这里表示pinda.swagger.enabled为true,即我们在application.yml中配置pinda.swagger.enabled: true才会启用,
// matchIfMissing = true 表示不写则默认为true
@ConditionalOnProperty(name = "pinda.swagger.enabled", havingValue = "true",
matchIfMissing = true)
// 启用swagger
@EnableSwagger2
// 指定配置属性类
@EnableConfigurationProperties(SwaggerProperties.class)
public class SwaggerAutoConfiguration implements BeanFactoryAware {
@Autowired
SwaggerProperties swaggerProperties;
private BeanFactory beanFactory;
@Bean
@ConditionalOnMissingBean
// 接口文档不分组则list为1个,分组则为多个
public List<Docket> createRestApi(){
// 强转为可配置的bean工厂
ConfigurableBeanFactory configurableBeanFactory = (ConfigurableBeanFactory) beanFactory;
List<Docket> docketList = new LinkedList<>();
// 没有分组
if (swaggerProperties.getDocket().isEmpty()) {
Docket docket = createDocket(swaggerProperties);
// 注册为单例对象,通过bean工厂来进行管理,使用title作为key,value为docket接口文档对象
configurableBeanFactory.registerSingleton(swaggerProperties.getTitle(), docket);
docketList.add(docket);
return docketList;
}
// 分组创建,遍历
for (String groupName : swaggerProperties.getDocket().keySet()){
SwaggerProperties.DocketInfo docketInfo = swaggerProperties.getDocket().get(groupName);
ApiInfo apiInfo = new ApiInfoBuilder()
//页面标题
.title(docketInfo.getTitle())
//创建人
.contact(new Contact(docketInfo.getContact().getName(),
docketInfo.getContact().getUrl(),
docketInfo.getContact().getEmail()))
//版本号
.version(docketInfo.getVersion())
//描述
.description(docketInfo.getDescription())
.build();
// base-path处理
// 当没有配置任何path的时候,解析/**
if (docketInfo.getBasePath().isEmpty()) {
docketInfo.getBasePath().add("/**");
}
List<Predicate<String>> basePath = new ArrayList<>();
for (String path : docketInfo.getBasePath()) {
basePath.add(PathSelectors.ant(path));
}
// exclude-path处理,
List<Predicate<String>> excludePath = new ArrayList<>();
for (String path : docketInfo.getExcludePath()) {
excludePath.add(PathSelectors.ant(path));
}
Docket docket = new Docket(DocumentationType.SWAGGER_2)
.apiInfo(apiInfo)
.groupName(docketInfo.getGroup())
.select()
//为当前包路径
.apis(RequestHandlerSelectors.basePackage(docketInfo.getBasePackage()))
.paths(Predicates.and(Predicates.not(Predicates.or(excludePath)),Predicates.or(basePath)))
.build();
// 注册为单例对象,通过bean工厂来进行管理,使用title作为key,value为docket接口文档对象
configurableBeanFactory.registerSingleton(groupName, docket);
// 添加
docketList.add(docket);
}
return docketList;
}
//构建 api文档的详细信息
private ApiInfo apiInfo(SwaggerProperties swaggerProperties) {
return new ApiInfoBuilder()
//页面标题
.title(swaggerProperties.getTitle())
//创建人
.contact(new Contact(swaggerProperties.getContact().getName(),
swaggerProperties.getContact().getUrl(),
swaggerProperties.getContact().getEmail()))
//版本号
.version(swaggerProperties.getVersion())
//描述
.description(swaggerProperties.getDescription())
.build();
}
//创建接口文档对象
private Docket createDocket(SwaggerProperties swaggerProperties) {
//API 基础信息
ApiInfo apiInfo = apiInfo(swaggerProperties);
// base-path处理
// 当没有配置任何path的时候,解析/**
if (swaggerProperties.getBasePath().isEmpty()) {
swaggerProperties.getBasePath().add("/**");
}
List<Predicate<String>> basePath = new ArrayList<>();
for (String path : swaggerProperties.getBasePath()) {
basePath.add(PathSelectors.ant(path));
}
// exclude-path处理
List<Predicate<String>> excludePath = new ArrayList<>();
for (String path : swaggerProperties.getExcludePath()) {
excludePath.add(PathSelectors.ant(path));
}
return new Docket(DocumentationType.SWAGGER_2)
.apiInfo(apiInfo)
.groupName(swaggerProperties.getGroup())
.select()
.apis(RequestHandlerSelectors.basePackage(swaggerProperties.getBasePackage()))
.paths(Predicates.and(Predicates.not(Predicates.or(excludePath)),Predicates.or(basePath)))
.build();
}
@Override
public void setBeanFactory(BeanFactory beanFactory) throws BeansException {
// 获取bean工厂对象
this.beanFactory = beanFactory;
}
}
第七步:创建启动类SwaggerDemoApplication
package cn.itcast;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class SwaggerDemoApplication {
public static void main(String[] args) {
SpringApplication.run(SwaggerDemoApplication.class, args);
}
}
执行启动类main方法启动项目,访问地址:http://localhost:7788/doc.html
之后我们可以对api接口进行调试,如删除用户调试,
如果接口文档不分组,我们可以修改application.yml文件:
server:
port: 7788
pinda:
swagger:
enabled: true #是否启用swagger
title: test模块
base-package: cn.itcast.controller
再次访问地址:http://localhost:7788/doc.html
可以看到所有的接口在一个分组中。
我们可以将我们的接口文档定制为一个starter,这样其他项目需要使用的话直接引入即可。
starter模块的定制可以参考b站链接:https://www.bilibili.com/video/BV1tw411f79E?p=43&spm_id_from=pageDriver
,此处我们不做过多叙述
通过上面的入门案例我们已经完成了接口文档的相关开发,而pd-tools-swagger2模块就是使用这种方式开发的,并且按照Spring boot starter的规范在/resources/META-INF中提供spring.factories文件,内容如下:
org.springframework.boot.autoconfigure.EnableAutoConfiguration=\
com.itheima.pinda.swagger2.SwaggerAutoConfiguration
这样我们在其他模块中如果需要使用swagger接口文档功能,只需要引入这个starter并且在application.yml中进行swagger的相关配置即可,例如:
pinda:
swagger:
enabled: true #是否启用swagger
docket:
user:
title: 用户模块
base-package: cn.itcast.controller.user
menu:
title: 菜单模块
base-package: cn.itcast.controller.menu
具体使用过程:
第一步:创建maven工程mySwaggerApp并配置pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0modelVersion>
<parent>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-parentartifactId>
<version>2.2.2.RELEASEversion>
<relativePath/>
parent>
<groupId>com.itheimagroupId>
<artifactId>mySwaggerAppartifactId>
<version>1.0-SNAPSHOTversion>
<dependencies>
<dependency>
<groupId>com.itheimagroupId>
<artifactId>pd-tools-swagger2artifactId>
<version>1.0-SNAPSHOTversion>
dependency>
<dependency>
<groupId>org.projectlombokgroupId>
<artifactId>lombokartifactId>
dependency>
dependencies>
project>
第二步:创建User实体类
package com.itheima.entity;
import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
import lombok.Data;
@Data
@ApiModel(description = "用户实体")
public class User {
@ApiModelProperty(value = "主键")
private int id;
@ApiModelProperty(value = "姓名")
private String name;
@ApiModelProperty(value = "年龄")
private int age;
@ApiModelProperty(value = "地址")
private String address;
}
第三步:创建UserController
package com.itheima.controller;
import com.itheima.entity.User;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiImplicitParams;
import io.swagger.annotations.ApiOperation;
import org.springframework.web.bind.annotation.*;
import java.util.ArrayList;
import java.util.List;
@RestController
@RequestMapping("/user")
@Api(tags = "用户控制器")
public class UserController {
@GetMapping("/getUsers")
@ApiOperation(value = "查询所有用户", notes = "查询所有用户信息")
public List<User> getAllUsers(){
User user = new User();
user.setId(100);
user.setName("itcast");
user.setAge(20);
user.setAddress("bj");
List<User> list = new ArrayList<>();
list.add(user);
return list;
}
@PostMapping("/save")
@ApiOperation(value = "新增用户", notes = "新增用户信息")
public String save(@RequestBody User user){
return "OK";
}
@PutMapping("/update")
@ApiOperation(value = "修改用户", notes = "修改用户信息")
public String update(@RequestBody User user){
return "OK";
}
@DeleteMapping("/delete")
@ApiOperation(value = "删除用户", notes = "删除用户信息")
public String delete(int id){
return "OK";
}
@ApiImplicitParams({
@ApiImplicitParam(name = "pageNum", value = "页码",
required = true, type = "Integer"),
@ApiImplicitParam(name = "pageSize", value = "每页条数",
required = true, type = "Integer"),
})
@ApiOperation(value = "分页查询用户信息")
@GetMapping(value = "page/{pageNum}/{pageSize}")
public String findByPage(@PathVariable Integer pageNum,
@PathVariable Integer pageSize) {
return "OK";
}
}
第四步:创建application.yml
server:
port: 8080
pinda:
swagger:
enabled: true
title: 在线接口文档
base-package: com.itheima.controller
第五步:创建启动类
package com.itheima;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class MySwaggerApplication {
public static void main(String[] args) {
SpringApplication.run(MySwaggerApplication.class,args);
}
}
启动项目,访问地址:http://localhost:8080/doc.html
至此,我们的Swagger与Knife4j的学习
就讲解完毕了。喜欢我的话可以关注我的微信公众号 我爱学习呀嘻嘻 ,不定期分享各类资源哦。