Springboot integrates swagger UI to quickly generate online API documents

Tian Qiao Ba Xia 2020-11-08 12:06:25
springboot integrates swagger ui quickly

SpringBoot Integrate Swagger-ui Online API file

Swagger It's a powerful api frame , Support online interface documentation ui Interface , It also provides online testing function , Besides , It also supports popular Restful Style interface .

The main point of this article is

  • Brief introduction restful style .

  • Introduce SpringBoot And Swagger-ui Fast integration .

  • Introduce Swagger-ui Commonly used annotations .

One 、restful Brief introduction to style

REST(Representational State Transfer): Expressive state transfer , It's a way to design and develop web applications , Reduce development complexity , Improve the scalability of the system .

Simply speaking ,HTTP The protocol itself is a stateless protocol , The client wants to operate the server , It can be done by requesting resources , take " state " To pass .

  • GET Request means to obtain resources .
  • POST The request represents a new resource .
  • PUT Request means to update the resource .
  • DELETE Request means delete resource .

Two 、SpringBoot And Swagger-ui Fast integration

1、 The first way : Using official dependencies

One 、 Import dependence

<!--swagger2 Officials rely on -->

Two 、 To write Swagger Configuration file for

public class SwaggerConfig {
public Docket createRestApi() {
return new Docket(DocumentationType.SWAGGER_2)
// For the current package controller Generate API file
// To have @Api Annotated Controller Generate API file
// To have @ApiOperation Annotation method generation API file
private ApiInfo apiInfo() {
return new ApiInfoBuilder()
.title("Swagger Interface document ")
.description("Fireworks Bokee.com Interface document ")
.contact(new Contact(" God, jojobasha ", "https://www.hyhwky.com", "[email protected]"))

3、 ... and 、 In the entity class model On the application of annotations

@ApiModel(value = "User object ", description = " User table ")
public class User implements Serializable {
private static final long serialVersionUID = 1L;
@ApiModelProperty(value = "id")
private Integer id;
@ApiModelProperty(value = " user name ")
private String name;
@ApiModelProperty(value = " Age ")
private Integer age;

Four 、 Applying annotations to interfaces

notes : The following comments can be tested successfully without adding any comments , But for the sake of document readability , It is suggested to add method notes .

@Api(tags = "User controller ") // Decorate the whole class , describe Controller The role of
public class UserController {
private static final List<User> USERS = new ArrayList<>();
static {
USERS.add(new User(1,"hyh",12));
USERS.add(new User(2,"summer day",18));
USERS.add(new User(3," God, jojobasha ",20));
@ApiOperation(" Get specified user")
public User getUser(@PathVariable @ApiParam(value = "id",required = true,defaultValue = "3") Integer id){
return USERS.get(id - 1);
@ApiOperation(" Delete the specified user")
@ApiImplicitParam(name = "id", value = "user id", required = true, dataType = "Integer",paramType = "path")
public String deleteUser(@PathVariable Integer id){
USERS.remove(id - 1);
return "success";
@ApiOperation(" New users ")
public String postUser(@RequestBody User user){
return "success";
@ApiOperation(" Update user ")
@ApiImplicitParam(name = "id", value = "id", required = true, dataType = "Integer",paramType = "path"),
@ApiImplicitParam(name = "user", value = "user Entity ", required = true, dataType = "User")
public String putUser(@PathVariable Integer id , @RequestBody User user){
USERS.set(id - 1,user);
return "success";
@ApiOperation(" User list ")
public List<User> getUsers(){
return USERS;
@ApiIgnore // When generating interface documents , Ignore the interface
public String ignoreTest(){
return "ignore";

5、 ... and 、 visit http://localhost:8081/swagger-ui.html You can see the effect

2、 The second way : Using third party dependencies

Document and source code address :https://github.com/SpringForAll/spring-boot-starter-swagger, There are detailed documents in it , utilize Spring Boot Automatic configuration features to achieve fast will swagger2 introduce spring boot Apply to generate API file , Simplify native use swagger2 The integration code of .

Interested partners can follow the document demo Test it yourself .

3、 ... and 、swagger-ui The basic notes of

  • @Api: Used to modify Controller class
  • @ApiOperation: Used to modify Controller Class Method
  • @ApiParam: Used to decorate... In an interface Parameters
  • @ApiModelProperty: Used to modify Properties of entity class

Source download

The content of this article is a summary of excellent blogs and official documents , The address of the original text has been marked in the reference section of the text . Last , All the code samples in this article have been uploaded to Gitee:https://gitee.com/tqbx/springboot-samples-learn, There are other SpringBoot The integration of oh .

Reference reading

本文为[Tian Qiao Ba Xia]所创,转载请带上原文链接,感谢

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