Spring Boot 使用 Swagger2-UI 实现在线接口文档
框架介绍
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。
常用注释
@Api
:用于修饰Controller
类,生成Controller
相关文档信息@ApiOperation
:用于修饰Controller
类中的方法,生成接口文档相关文档信息@ApiParam
:用于修饰接口中的参数,生成接口参数相关文档信息@ApiModelProperty
: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
整合步骤
添加项目依赖
<!--Swagger-UI API文档生产工具-->
<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>
添加Swagger-UI配置
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.silverming.malllearn.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.service.Contact;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;
import springfox.documentation.swagger2.annotations.EnableSwagger2;
@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.silverming.malllearn.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();
}
public ApiInfo apiInfo() {
return new ApiInfoBuilder()
.title("SwaggerUI演示")
.description("mall-learn")
.contact(new Contact("silverming",null,null))
.version("1.0")
.build();
}
}
配置MyBatis Generator注释的生成规则
package com.silverming.malllearn.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;
/**
* 自定义注解生成器
*/
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));
}
}
}
运行 mybatis generator 后生成的 model 如图所示:
运行项目结果
接口地址:http://localhost:8080/swagger-ui.html
参考资料: