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依赖 <dependency> <groupId>com.jayway.jsonpath</groupId> <artifactId>json-path</artifactId> <version>2.4.0</version> </dependency> 使用 //jsonStr 应为json字符串 Object sss = JsonPath.parse(j

抽象类 public abstract class UploadStrategy { public abstract void takeAction(String url,Long userId); } 抽象类实现类 @Service public class UpdateAvatarStrategy extends UploadStrategy { @Resource RegisteredUserService registeredUserService; @Over