啥是倍增思想？ 倍增，每次將範圍擴大或減少一倍而達到加速的效果 舉個慄子，你想要跳到15米遠的地方，你怎麼找到這個15這個地方，一步一步跳嗎，利用倍增的話 預設一個k使2^k>15值 ，這裡我們假設k=5， 2^5=32 >15 k- -; k=4; 跳過了，不跳 2^4=16 >15 k- -; ...
轉自:
http://www.java265.com/JavaCourse/202204/2931.html
SpringBoot:
Spring Boot是由Pivotal團隊提供的全新框架，其設計目的是用來簡化新Spring應用的初始搭建以及開發過程。該框架使用了特定的方式來進行配置，從而使開發人員不再需要定義樣板化的配置。通過這種方式，Spring Boot致力於在蓬勃發展的快速應用開發領域(rapid application development)成為領導者
在生產環境中，我們需關閉swagger配置，避免介面對外暴露而產生各種危險，具體的操作方式如下所示:
禁用方式1： 使用@Value
package com.java265;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
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 extends WebMvcConfigurerAdapter {
@Value("${swagger.enable}")
private Boolean enable;
@Bean
public Docket createRestApi() {
return new Docket(DocumentationType.SWAGGER_2)
.enable(enable)
.apiInfo(apiInfo())
.select()
.apis(RequestHandlerSelectors.basePackage("com.dc.controller"))
.paths(PathSelectors.any())
//.paths(PathSelectors.none())
.build();
}
private ApiInfo apiInfo() {
return new ApiInfoBuilder()
.title("auth系統數據介面文檔")
.description("此系統為新架構Api說明文檔")
.termsOfServiceUrl("")
.contact(new Contact("[email protected]", "", "*********"))
.version("1.0")
.build();
}
/**
* swagger ui資源映射
* @param registry
*/
@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
registry.addResourceHandler("swagger-ui.html")
.addResourceLocations("classpath:/META-INF/resources/");
registry.addResourceHandler("/webjars/**")
.addResourceLocations("classpath:/META-INF/resources/webjars/");
}
/**
* swagger-ui.html路徑映射，瀏覽器中使用/api-docs訪問
* @param registry
*/
@Override
public void addViewControllers(ViewControllerRegistry registry) {
registry.addRedirectViewController("/api-docs","/swagger-ui.html");
}
}
方式二：使用Profile註解
使用註解@Profile({“dev”,“test”})
在開發或測試環境開啟
package com.java265.config;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
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
@Profile({“dev”,“test”})
public class Swagger2Config extends WebMvcConfigurerAdapter {
@Bean
public Docket createRestApi() {
return new Docket(DocumentationType.SWAGGER_2)
.apiInfo(apiInfo())
.select()
.apis(RequestHandlerSelectors.basePackage("com.dc.controller"))
.paths(PathSelectors.any())
//.paths(PathSelectors.none())
.build();
}
private ApiInfo apiInfo() {
return new ApiInfoBuilder()
.title("auth系統數據介面文檔")
.description("此系統為新架構Api說明文檔")
.termsOfServiceUrl("")
.contact(new Contact("*****", "", "**"))
.version("1.0")
.build();
}
/**
* swagger ui資源映射
* @param registry
*/
@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
registry.addResourceHandler("swagger-ui.html")
.addResourceLocations("classpath:/META-INF/resources/");
registry.addResourceHandler("/webjars/**")
.addResourceLocations("classpath:/META-INF/resources/webjars/");
}
/**
* swagger-ui.html路徑映射，瀏覽器中使用/api-docs訪問
* @param registry
*/
@Override
public void addViewControllers(ViewControllerRegistry registry) {
registry.addRedirectViewController("/api-docs","/swagger-ui.html");
}
}
