1.swagger简介
Swagger是一个API接口管理工具，支持在线测试接口数据，根据配置自动生成API文档，结合spring mvc而提供界面化方法文档的一个开源框架。
1.1Swagger主要的项目
Swagger是一组开源项目，主要项目如下：
Swagger-tools:提供各种与Swagger进行集成和交互的工具。例如模式检验、Swagger 1.2文档转换成Swagger 2.0文档等功能。
Swagger-core: 用于Java/Scala的的Swagger实现。与JAX-RS(Jersey、Resteasy、CXF…)、Servlets和Play框架进行集成。
Swagger-js: 用于JavaScript的Swagger实现。
Swagger-node-express: Swagger模块，用于node.js的Express web应用框架。
Swagger-ui：一个无依赖的HTML、JS和CSS集合，可以为Swagger兼容API动态生成优雅文档。
Swagger-codegen：一个模板驱动引擎，通过分析用户Swagger资源声明以各种语言生成客户端代码。
Swagger-editor：可让使用者在浏览器里以YAML格式编辑Swagger API规范并实时预览文档。可以生成有效的Swagger JSON描述，并用于所有Swagger工具（代码生成、文档等等）中。
2.Swagger-Bootstrap-UI简介
Swagger-Bootstrap-UI是springfox-swagger的增强UI实现，为Java开发者在使用Swagger的时候，能拥有一份简洁、强大的接口文档体验。
2.1Swagger-Bootstrap-UI核心功能
官方文档：https://doc.xiaominfo.com/guide/#%E7%AE%80%E4%BB%8B
效果：http://swagger-bootstrap-ui.xiaominfo.com/doc.html
示例:https://gitee.com/xiaoym/swagger-bootstrap-ui-demo
该UI增强包主要包括两大核心功能：文档说明 和 在线调试
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，使用swagger-bootstrap-ui能根据该文档说明，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、Curl请求命令实例、响应时间、响应状态码等信息，帮助开发者在线调试，而不必通过其他测试工具测试接口是否正确,简介、强大
3.创建spring Boot项目
本案例是基于spring boot+jpa+mysql+swagger,编译器选择IDEA。
3.1创建maven 项目，引入依赖包：spring boot、swagger和swagger-bootstrap-ui依赖包
spring Boot父包和编码格式设置
<parent>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-parentartifactId>
<version>2.0.1.RELEASEversion>
<relativePath/>
parent>
<properties>
<project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8project.reporting.outputEncoding>
<java.version>1.8java.version>
properties>
spring boot常用依赖包
<dependencies> <dependency> <groupId>org.springframework.bootgroupId> <artifactId>spring-boot-starter-webartifactId> dependency> <dependency> <groupId>org.springframework.bootgroupId> <artifactId>spring-boot-starter-testartifactId> <scope>testscope> dependency> <dependency> <groupId>org.springframework.bootgroupId> <artifactId>spring-boot-starter-data-jpaartifactId> dependency> <dependency> <groupId>org.springframework.bootgroupId> <artifactId>spring-boot-devtoolsartifactId> <optional>trueoptional> <scope>truescope> dependency> <dependency> <groupId>org.springframework.bootgroupId> <artifactId>spring-boot-starter-thymeleafartifactId> dependency> <dependency> <groupId>mysqlgroupId> <artifactId>mysql-connector-javaartifactId> dependency> dependencies>
其他
<build> <plugins> <plugin> <groupId>org.springframework.bootgroupId> <artifactId>spring-boot-maven-pluginartifactId> <configuration> <fork>truefork> configuration> plugin> plugins> build>
引入swagger和的swagger-bootstrap-ui包
<dependency>
<groupId>io.springfoxgroupId>
<artifactId>springfox-swagger-uiartifactId>
<version>2.2.2version>
dependency>
<dependency>
<groupId>io.springfoxgroupId>
<artifactId>springfox-swagger2artifactId>
<version>2.2.2version>
dependency>
<dependency>
<groupId>com.github.xiaoymingroupId>
<artifactId>swagger-bootstrap-uiartifactId>
<version>1.8.3version>
dependency>
全部：
<parent>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-parentartifactId>
<version>2.0.1.RELEASEversion>
<relativePath/>
parent>
<properties>
<project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8project.reporting.outputEncoding>
<java.version>1.8java.version>
properties>
<dependencies>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-webartifactId>
dependency>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-testartifactId>
<scope>testscope>
dependency>
<dependency>
<groupId>io.springfoxgroupId>
<artifactId>springfox-swagger-uiartifactId>
<version>2.2.2version>
dependency>
<dependency>
<groupId>io.springfoxgroupId>
<artifactId>springfox-swagger2artifactId>
<version>2.2.2version>
dependency>
<dependency>
<groupId>com.github.xiaoymingroupId>
<artifactId>swagger-bootstrap-uiartifactId>
<version>1.8.3version>
dependency>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-data-jpaartifactId>
dependency>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-devtoolsartifactId>
<optional>trueoptional>
<scope>truescope>
dependency>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-thymeleafartifactId>
dependency>
<dependency>
<groupId>mysqlgroupId>
<artifactId>mysql-connector-javaartifactId>
dependency>
dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-maven-pluginartifactId>
<configuration>
<fork>truefork>
configuration>
plugin>
plugins>
build>
3.2编写数据表
3.3利用JPA编写基本的增删改查
在 resources 目录下新建 application.properties 文件，内容如下
#修改tomcat默认端口号 server.port=8090 #配置数据源信息 spring.datasource.driver-class-name=com.mysql.jdbc.Driver spring.datasource.url=jdbc:mysql://localhost:3306/jpastudy spring.datasource.username=root spring.datasource.password=1234567 #配置jpa spring.jpa.hibernate.ddl-auto=update spring.jpa.show-sql=true spring.jackson.serialization.indent_output=true ##控制台打印sql
entitiy层
/** * @Auther: Newbe * @Date: 2019/9/24 10:34 * @Description: */ @Entity public class User { @Id @GeneratedValue(strategy= GenerationType.AUTO) private Integer id; private String username; private String password; public Integer getId() { return id; } public void setId(Integer id) { this.id = id; } public String getUserName() { return username; } public void setUserName(String username) { this.username = username; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } }
service 接口层
package com.newbe.service; import com.newbe.entity.User; import java.util.List; import java.util.Optional; /** * @Auther: Newbe * @Date: 2019/9/24 23:48 * @Description: */ public interface UserService { //根据id查询用户 OptionalgetUserById(Integer id); //查询所有用户 List getUserAll(); //根据id删除用户 void del(int id); //更新保存 User save(User user); }
service impl
package com.newbe.service; import com.newbe.entity.User; import com.newbe.repository.UserDAO; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import java.util.List; import java.util.Optional; /** * @Auther: Newbe * @Date: 2019/9/24 23:53 * @Description: */ @Service public class UserServiceImpl implements UserService{ @Autowired private UserDAO userDAO; @Override public OptionalgetUserById(Integer id) { return userDAO.findById(id); } @Override public List getUserAll() { return userDAO.findAll(); } @Override public void del(int id) { userDAO.deleteById(id); } @Override public User save(User user) { userDAO.save(user); return user; } }
controller层
package com.newbe.controller; import com.newbe.entity.User; import com.newbe.service.UserService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; import java.util.List; import java.util.Optional; /** * @Auther: Newbe * @Date: 2019/9/24 23:58 * @Description: */ @RestController public class UserController { @Autowired private UserService userService; @RequestMapping("/findUserById") public OptionalgetUserById(int id){ return userService.getUserById(id); } @RequestMapping("/findAll") public List findUserAll(){ return userService.getUserAll(); } @RequestMapping("/del") public void del(int id){ userService.del(id); } @RequestMapping("/save") public User save(User user){ return userService.save(user); } }
启动类
package com.newbe; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.boot.web.client.RestTemplateBuilder; import org.springframework.context.annotation.Bean; import org.springframework.web.client.RestTemplate; /** * @Auther: Newbe * @Date: 2019/9/25 00:05 * @Description: */ @SpringBootApplication public class UserApp { public static void main(String[] args) { SpringApplication.run(UserApp.class,args); } }
项目结构：
以上代码的项目地址：https://gitee.com/fbyluohua/SwaggerStudy.git 以上是源代码，后面直接对源代码进行使用Swagger生成文档
4.配置Swagger信息
新建config文件夹
SwaggerConfiguration.java
package com.newbe.comfig; 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 SwaggerConfiguration { @Bean public Docket createRestApi() { return new Docket(DocumentationType.SWAGGER_2) .apiInfo(apiInfo()) .select()
//扫描端口 .apis(RequestHandlerSelectors.basePackage("com.newebe")) .paths(PathSelectors.any()) .build(); } private ApiInfo apiInfo() { return new ApiInfoBuilder() .title("swagger-bootstrap-ui RESTful APIs") .description("swagger-bootstrap-ui") .termsOfServiceUrl("http://localhost:8999/") .contact("[email protected]") .version("1.0") .build(); } }
启动项目，在浏览器输入：http://localhost:8090/doc.html
以上表示swagger界面生成成功，接着需要配置注释来生成API文档
5.添加swagger注解
为controller层添加注解
** * @Auther: Newbe * @Date: 2019/9/24 23:58 * @Description: */ @Api(value="用户接口",description = "用户信息接口") @RestController public class UserController { @Autowired private UserService userService; @ApiOperation(value="根据id获取用户信息",notes="方法备注说明") @ApiImplicitParams({ @ApiImplicitParam(paramType = "query", dataType = "Integer", name = "id", value = "编号", required = true) }) @RequestMapping(value = "/findUserById", method=RequestMethod.GET ) public OptionalgetUserById(int id){ return userService.getUserById(id); } @ApiOperation(value="查询所有用户信息",notes="方法备注说明") @RequestMapping(value = "/findAll", method=RequestMethod.GET ) public List findUserAll(){ return userService.getUserAll(); } @ApiOperation(value="根据id删除用户信息",notes="方法备注说明") @RequestMapping(value ="/del", method=RequestMethod.GET) public void del(int id){ userService.del(id); } @ApiOperation(value="保存用户信息",notes="方法备注说明") @RequestMapping(value ="/save",method=RequestMethod.GET) public User save(User user){ return userService.save(user); } }
为实体层添加注解
/** * @Auther: Newbe * @Date: 2019/9/24 10:34 * @Description: */ @ApiModel(value = "User",description = "用户信息") @Entity public class User { @Id @GeneratedValue(strategy= GenerationType.AUTO) @ApiModelProperty(value = "用户ID",name = "id") private Integer id; @ApiModelProperty(value = "用户名",name = "userName") private String username; @ApiModelProperty(value = "密码",name = "password") private String password; public Integer getId() { return id; } public void setId(Integer id) { this.id = id; } public String getUserName() { return username; } public void setUserName(String username) { this.username = username; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } @Override public String toString() { return "User{" + "id=" + id + ", username='" + username + '\'' + ", password='" + password + '\'' + '}'; } }
6.生成API文档
启动项目，在浏览器输入：http://localhost:8090/doc.html
展开用户接口
测试接口
测试成功，其他接口也一样这样测试
关于项目代码
7.关于API接口详解
请参考：https://blog.csdn.net/xiaojin21cen/article/details/78654652