app版本控制java后端接口版本管理

java api version 版本控制 java接口版本管理

1 自定义 AppVersionHandleMapping

自定义AppVersionHandleMapping实现RequestMappingHandlerMapping里面的方法
public class AppVersionHandleMapping extends RequestMappingHandlerMapping
{@Overrideprotected RequestCondition<?> getCustomTypeCondition(Class<?> handlerType){AppVersion annotation = handlerType.getAnnotation(AppVersion.class);return annotation == null ? null : new AppVersionCondition(new VersionItem(annotation.value()));}@Overrideprotected RequestCondition<?> getCustomMethodCondition(Method method){AppVersion annotation = method.getAnnotation(AppVersion.class);return annotation == null ? null : new AppVersionCondition(new VersionItem(annotation.value()));}
}

2 自定义注解

@Target({ElementType.METHOD, ElementType.TYPE})
@Retention(RetentionPolicy.RUNTIME)
public @interface AppVersion
{String value() default "1.0.0";
}

3 实现RequestCondition里面的方法

@Data
public class AppVersionCondition implements RequestCondition<AppVersionCondition> {private VersionItem versionItem;public AppVersionCondition(VersionItem versionItem) {this.versionItem = versionItem;}@Overridepublic AppVersionCondition combine(AppVersionCondition other) {// 选择大版本return versionItem.compareTo(other.getVersionItem()) >= 0 ? new AppVersionCondition(this.getVersionItem()) : new AppVersionCondition(other.getVersionItem());}@Overridepublic AppVersionCondition getMatchingCondition(HttpServletRequest request) {String appVersion = RequestUtil.getAppVersion(request);VersionItem item = new VersionItem(appVersion);// 获取所有小于等于版本的接口if (item.compareTo(this.versionItem) >= 0)return this;return null;}@Overridepublic int compareTo(AppVersionCondition other, HttpServletRequest request) {// 获取最大版本对应的接口return other.getVersionItem().compareTo(this.versionItem);}

4 最后把自定义的AppVersionHandleMapping注入MVC管理

@Configuration
public class WebConfig implements WebMvcConfigurer, WebMvcRegistrations {@Overridepublic RequestMappingHandlerMapping getRequestMappingHandlerMapping() {return new AppVersionHandleMapping();}

5 版本比对工具

@Data
public class VersionItem implements Comparable<VersionItem> {private String appVersion;public VersionItem(String appVersion) {// 截取前三位String[] split = appVersion.split("\\.");if (split.length > 3)appVersion = split[0] + "." + split[1] + "." + split[2];this.appVersion = appVersion;}@Overridepublic int compareTo(@NotNull VersionItem o) {return compareVersion(o.getAppVersion());}/*** 判断版本** @param version 版本*/private int compareVersion(String version) {String[] version1 = appVersion.split("\\.");String[] version2 = version.split("\\.");int i1 = 0;int i2 = 0;int n1 = version1.length;int n2 = version2.length;for (int i = 0; i < Math.max(n1, n2); i++) {i1 = i < n1 ? Integer.parseInt(version1[i]) : 0;i2 = i < n2 ? Integer.parseInt(version2[i]) : 0;if (i1 != i2)return Integer.compare(i1, i2);}return 0;}

6 参考

https://blog.51cto.com/u_13521/9789790